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text stringlengths 597 826	video stringlengths 44 74	hard_negative_texts listlengths 5 5	hard_negative_videos listlengths 5 5
Find the 3D optics video of thin-lens focusing, showing a lens bringing a beam to a compact focal spot. Physically, the lens converges the beam toward the image point, and the spot is smallest at best focus. The color map represents the normalized irradiance field, so brightness peaks sharply where the converging beam ...	videos/thinLensFocus/thinLensFocus_S1001.mp4	[ "Find the 3D optics video of thin-lens focusing, showing a lens bringing a beam to a compact focal spot. Physically, the lens converges the beam toward the image point, and the spot is smallest at best focus. The color map represents the normalized irradiance field, so brightness peaks sharply where the converging ...	[ "videos/thinLensFocus/thinLensFocus_S1145.mp4", "videos/thinLensFocus/thinLensFocus_S1048.mp4", "videos/thinLensFocus/thinLensFocus_S1124.mp4", "videos/thinLensFocus/thinLensFocus_S1079.mp4", "videos/thinLensFocus/thinLensFocus_S1108.mp4" ]
Find the 3D optics video of thin-lens focusing, showing a lens bringing a beam to a compact focal spot. Physically, the lens converges the beam toward the image point, and the spot is smallest at best focus. The color map represents the normalized irradiance field, so brightness peaks sharply where the converging beam ...	videos/thinLensFocus/thinLensFocus_S1002.mp4	[ "Find the 3D optics video of thin-lens focusing, showing a lens bringing a beam to a compact focal spot. Physically, the lens converges the beam toward the image point, and the spot is smallest at best focus. The color map represents the normalized irradiance field, so brightness peaks sharply where the converging ...	[ "videos/thinLensFocus/thinLensFocus_S1070.mp4", "videos/thinLensFocus/thinLensFocus_S1036.mp4", "videos/thinLensFocus/thinLensFocus_S1090.mp4", "videos/thinLensFocus/thinLensFocus_S1127.mp4", "videos/thinLensFocus/thinLensFocus_S1001.mp4" ]
Find the 3D optics video of thin-lens focusing, showing a lens bringing a beam to a compact focal spot. Physically, the lens converges the beam toward the image point, and the spot is smallest at best focus. The color map represents the normalized irradiance field, so brightness peaks sharply where the converging beam ...	videos/thinLensFocus/thinLensFocus_S1003.mp4	[ "Find the 3D optics video of thin-lens focusing, showing a lens bringing a beam to a compact focal spot. Physically, the lens converges the beam toward the image point, and the spot is smallest at best focus. The color map represents the normalized irradiance field, so brightness peaks sharply where the converging ...	[ "videos/thinLensFocus/thinLensFocus_S1011.mp4", "videos/thinLensFocus/thinLensFocus_S1100.mp4", "videos/thinLensFocus/thinLensFocus_S1037.mp4", "videos/thinLensFocus/thinLensFocus_S1008.mp4", "videos/thinLensFocus/thinLensFocus_S1128.mp4" ]
Find the 3D optics video of thin-lens focusing, showing a lens bringing a beam to a compact focal spot. Physically, the lens converges the beam toward the image point, and the spot is smallest at best focus. The color map represents the normalized irradiance field, so brightness peaks sharply where the converging beam ...	videos/thinLensFocus/thinLensFocus_S1004.mp4	[ "Find the 3D optics video of thin-lens focusing, showing a lens bringing a beam to a compact focal spot. Physically, the lens converges the beam toward the image point, and the spot is smallest at best focus. The color map represents the normalized irradiance field, so brightness peaks sharply where the converging ...	[ "videos/thinLensFocus/thinLensFocus_S1028.mp4", "videos/thinLensFocus/thinLensFocus_S1046.mp4", "videos/thinLensFocus/thinLensFocus_S1026.mp4", "videos/thinLensFocus/thinLensFocus_S1019.mp4", "videos/thinLensFocus/thinLensFocus_S1034.mp4" ]
Find the 3D optics video of thin-lens focusing, showing a lens bringing a beam to a compact focal spot. Physically, the lens converges the beam toward the image point, and the spot is smallest at best focus. The color map represents the normalized irradiance field, so brightness peaks sharply where the converging beam ...	videos/thinLensFocus/thinLensFocus_S1005.mp4	[ "Find the 3D optics video of thin-lens focusing, showing a lens bringing a beam to a compact focal spot. Physically, the lens converges the beam toward the image point, and the spot is smallest at best focus. The color map represents the normalized irradiance field, so brightness peaks sharply where the converging ...	[ "videos/thinLensFocus/thinLensFocus_S1119.mp4", "videos/thinLensFocus/thinLensFocus_S1113.mp4", "videos/thinLensFocus/thinLensFocus_S1046.mp4", "videos/thinLensFocus/thinLensFocus_S1050.mp4", "videos/thinLensFocus/thinLensFocus_S1102.mp4" ]
Find the 3D optics video of thin-lens focusing, showing a lens bringing a beam to a compact focal spot. Physically, the lens converges the beam toward the image point, and the spot is smallest at best focus. The color map represents the normalized irradiance field, so brightness peaks sharply where the converging beam ...	videos/thinLensFocus/thinLensFocus_S1006.mp4	[ "Find the 3D optics video of thin-lens focusing, showing a lens bringing a beam to a compact focal spot. Physically, the lens converges the beam toward the image point, and the spot is smallest at best focus. The color map represents the normalized irradiance field, so brightness peaks sharply where the converging ...	[ "videos/thinLensFocus/thinLensFocus_S1017.mp4", "videos/thinLensFocus/thinLensFocus_S1087.mp4", "videos/thinLensFocus/thinLensFocus_S1145.mp4", "videos/thinLensFocus/thinLensFocus_S1095.mp4", "videos/thinLensFocus/thinLensFocus_S1065.mp4" ]
Find the 3D optics video of thin-lens focusing, showing a lens bringing a beam to a compact focal spot. Physically, the lens converges the beam toward the image point, and the spot is smallest at best focus. The color map represents the normalized irradiance field, so brightness peaks sharply where the converging beam ...	videos/thinLensFocus/thinLensFocus_S1007.mp4	[ "Find the 3D optics video of thin-lens focusing, showing a lens bringing a beam to a compact focal spot. Physically, the lens converges the beam toward the image point, and the spot is smallest at best focus. The color map represents the normalized irradiance field, so brightness peaks sharply where the converging ...	[ "videos/thinLensFocus/thinLensFocus_S1032.mp4", "videos/thinLensFocus/thinLensFocus_S1145.mp4", "videos/thinLensFocus/thinLensFocus_S1041.mp4", "videos/thinLensFocus/thinLensFocus_S1051.mp4", "videos/thinLensFocus/thinLensFocus_S1087.mp4" ]
Find the 3D optics video of thin-lens focusing, showing a lens bringing a beam to a compact focal spot. Physically, the lens converges the beam toward the image point, and the spot is smallest at best focus. The color map represents the normalized irradiance field, so brightness peaks sharply where the converging beam ...	videos/thinLensFocus/thinLensFocus_S1008.mp4	[ "Find the 3D optics video of thin-lens focusing, showing a lens bringing a beam to a compact focal spot. Physically, the lens converges the beam toward the image point, and the spot is smallest at best focus. The color map represents the normalized irradiance field, so brightness peaks sharply where the converging ...	[ "videos/thinLensFocus/thinLensFocus_S1034.mp4", "videos/thinLensFocus/thinLensFocus_S1124.mp4", "videos/thinLensFocus/thinLensFocus_S1051.mp4", "videos/thinLensFocus/thinLensFocus_S1064.mp4", "videos/thinLensFocus/thinLensFocus_S1061.mp4" ]
Find the 3D optics video of thin-lens focusing, showing a lens bringing a beam to a compact focal spot. Physically, the lens converges the beam toward the image point, and the spot is smallest at best focus. The color map represents the normalized irradiance field, so brightness peaks sharply where the converging beam ...	videos/thinLensFocus/thinLensFocus_S1009.mp4	[ "Find the 3D optics video of thin-lens focusing, showing a lens bringing a beam to a compact focal spot. Physically, the lens converges the beam toward the image point, and the spot is smallest at best focus. The color map represents the normalized irradiance field, so brightness peaks sharply where the converging ...	[ "videos/thinLensFocus/thinLensFocus_S1117.mp4", "videos/thinLensFocus/thinLensFocus_S1093.mp4", "videos/thinLensFocus/thinLensFocus_S1128.mp4", "videos/thinLensFocus/thinLensFocus_S1041.mp4", "videos/thinLensFocus/thinLensFocus_S1055.mp4" ]
Find the 3D optics video of thin-lens focusing, showing a lens bringing a beam to a compact focal spot. Physically, the lens converges the beam toward the image point, and the spot is smallest at best focus. The color map represents the normalized irradiance field, so brightness peaks sharply where the converging beam ...	videos/thinLensFocus/thinLensFocus_S1011.mp4	[ "Find the 3D optics video of thin-lens focusing, showing a lens bringing a beam to a compact focal spot. Physically, the lens converges the beam toward the image point, and the spot is smallest at best focus. The color map represents the normalized irradiance field, so brightness peaks sharply where the converging ...	[ "videos/thinLensFocus/thinLensFocus_S1099.mp4", "videos/thinLensFocus/thinLensFocus_S1017.mp4", "videos/thinLensFocus/thinLensFocus_S1076.mp4", "videos/thinLensFocus/thinLensFocus_S1082.mp4", "videos/thinLensFocus/thinLensFocus_S1079.mp4" ]
Find the 3D optics video of thin-lens focusing, showing a lens bringing a beam to a compact focal spot. Physically, the lens converges the beam toward the image point, and the spot is smallest at best focus. The color map represents the normalized irradiance field, so brightness peaks sharply where the converging beam ...	videos/thinLensFocus/thinLensFocus_S1013.mp4	[ "Find the 3D optics video of thin-lens focusing, showing a lens bringing a beam to a compact focal spot. Physically, the lens converges the beam toward the image point, and the spot is smallest at best focus. The color map represents the normalized irradiance field, so brightness peaks sharply where the converging ...	[ "videos/thinLensFocus/thinLensFocus_S1032.mp4", "videos/thinLensFocus/thinLensFocus_S1096.mp4", "videos/thinLensFocus/thinLensFocus_S1090.mp4", "videos/thinLensFocus/thinLensFocus_S1087.mp4", "videos/thinLensFocus/thinLensFocus_S1102.mp4" ]
Find the 3D optics video of thin-lens focusing, showing a lens bringing a beam to a compact focal spot. Physically, the lens converges the beam toward the image point, and the spot is smallest at best focus. The color map represents the normalized irradiance field, so brightness peaks sharply where the converging beam ...	videos/thinLensFocus/thinLensFocus_S1017.mp4	[ "Find the 3D optics video of thin-lens focusing, showing a lens bringing a beam to a compact focal spot. Physically, the lens converges the beam toward the image point, and the spot is smallest at best focus. The color map represents the normalized irradiance field, so brightness peaks sharply where the converging ...	[ "videos/thinLensFocus/thinLensFocus_S1125.mp4", "videos/thinLensFocus/thinLensFocus_S1147.mp4", "videos/thinLensFocus/thinLensFocus_S1089.mp4", "videos/thinLensFocus/thinLensFocus_S1150.mp4", "videos/thinLensFocus/thinLensFocus_S1030.mp4" ]
Find the 3D optics video of thin-lens focusing, showing a lens bringing a beam to a compact focal spot. Physically, the lens converges the beam toward the image point, and the spot is smallest at best focus. The color map represents the normalized irradiance field, so brightness peaks sharply where the converging beam ...	videos/thinLensFocus/thinLensFocus_S1019.mp4	[ "Find the 3D optics video of thin-lens focusing, showing a lens bringing a beam to a compact focal spot. Physically, the lens converges the beam toward the image point, and the spot is smallest at best focus. The color map represents the normalized irradiance field, so brightness peaks sharply where the converging ...	[ "videos/thinLensFocus/thinLensFocus_S1099.mp4", "videos/thinLensFocus/thinLensFocus_S1003.mp4", "videos/thinLensFocus/thinLensFocus_S1150.mp4", "videos/thinLensFocus/thinLensFocus_S1079.mp4", "videos/thinLensFocus/thinLensFocus_S1087.mp4" ]
Find the 3D optics video of thin-lens focusing, showing a lens bringing a beam to a compact focal spot. Physically, the lens converges the beam toward the image point, and the spot is smallest at best focus. The color map represents the normalized irradiance field, so brightness peaks sharply where the converging beam ...	videos/thinLensFocus/thinLensFocus_S1021.mp4	[ "Find the 3D optics video of thin-lens focusing, showing a lens bringing a beam to a compact focal spot. Physically, the lens converges the beam toward the image point, and the spot is smallest at best focus. The color map represents the normalized irradiance field, so brightness peaks sharply where the converging ...	[ "videos/thinLensFocus/thinLensFocus_S1013.mp4", "videos/thinLensFocus/thinLensFocus_S1150.mp4", "videos/thinLensFocus/thinLensFocus_S1064.mp4", "videos/thinLensFocus/thinLensFocus_S1121.mp4", "videos/thinLensFocus/thinLensFocus_S1111.mp4" ]
Find the 3D optics video of thin-lens focusing, showing a lens bringing a beam to a compact focal spot. Physically, the lens converges the beam toward the image point, and the spot is smallest at best focus. The color map represents the normalized irradiance field, so brightness peaks sharply where the converging beam ...	videos/thinLensFocus/thinLensFocus_S1022.mp4	[ "Find the 3D optics video of thin-lens focusing, showing a lens bringing a beam to a compact focal spot. Physically, the lens converges the beam toward the image point, and the spot is smallest at best focus. The color map represents the normalized irradiance field, so brightness peaks sharply where the converging ...	[ "videos/thinLensFocus/thinLensFocus_S1030.mp4", "videos/thinLensFocus/thinLensFocus_S1113.mp4", "videos/thinLensFocus/thinLensFocus_S1146.mp4", "videos/thinLensFocus/thinLensFocus_S1034.mp4", "videos/thinLensFocus/thinLensFocus_S1052.mp4" ]
Find the 3D optics video of thin-lens focusing, showing a lens bringing a beam to a compact focal spot. Physically, the lens converges the beam toward the image point, and the spot is smallest at best focus. The color map represents the normalized irradiance field, so brightness peaks sharply where the converging beam ...	videos/thinLensFocus/thinLensFocus_S1023.mp4	[ "Find the 3D optics video of thin-lens focusing, showing a lens bringing a beam to a compact focal spot. Physically, the lens converges the beam toward the image point, and the spot is smallest at best focus. The color map represents the normalized irradiance field, so brightness peaks sharply where the converging ...	[ "videos/thinLensFocus/thinLensFocus_S1079.mp4", "videos/thinLensFocus/thinLensFocus_S1095.mp4", "videos/thinLensFocus/thinLensFocus_S1065.mp4", "videos/thinLensFocus/thinLensFocus_S1094.mp4", "videos/thinLensFocus/thinLensFocus_S1061.mp4" ]
Find the 3D optics video of thin-lens focusing, showing a lens bringing a beam to a compact focal spot. Physically, the lens converges the beam toward the image point, and the spot is smallest at best focus. The color map represents the normalized irradiance field, so brightness peaks sharply where the converging beam ...	videos/thinLensFocus/thinLensFocus_S1024.mp4	[ "Find the 3D optics video of thin-lens focusing, showing a lens bringing a beam to a compact focal spot. Physically, the lens converges the beam toward the image point, and the spot is smallest at best focus. The color map represents the normalized irradiance field, so brightness peaks sharply where the converging ...	[ "videos/thinLensFocus/thinLensFocus_S1079.mp4", "videos/thinLensFocus/thinLensFocus_S1114.mp4", "videos/thinLensFocus/thinLensFocus_S1124.mp4", "videos/thinLensFocus/thinLensFocus_S1099.mp4", "videos/thinLensFocus/thinLensFocus_S1011.mp4" ]
Find the 3D optics video of thin-lens focusing, showing a lens bringing a beam to a compact focal spot. Physically, the lens converges the beam toward the image point, and the spot is smallest at best focus. The color map represents the normalized irradiance field, so brightness peaks sharply where the converging beam ...	videos/thinLensFocus/thinLensFocus_S1026.mp4	[ "Find the 3D optics video of thin-lens focusing, showing a lens bringing a beam to a compact focal spot. Physically, the lens converges the beam toward the image point, and the spot is smallest at best focus. The color map represents the normalized irradiance field, so brightness peaks sharply where the converging ...	[ "videos/thinLensFocus/thinLensFocus_S1071.mp4", "videos/thinLensFocus/thinLensFocus_S1027.mp4", "videos/thinLensFocus/thinLensFocus_S1144.mp4", "videos/thinLensFocus/thinLensFocus_S1096.mp4", "videos/thinLensFocus/thinLensFocus_S1041.mp4" ]
Find the 3D optics video of thin-lens focusing, showing a lens bringing a beam to a compact focal spot. Physically, the lens converges the beam toward the image point, and the spot is smallest at best focus. The color map represents the normalized irradiance field, so brightness peaks sharply where the converging beam ...	videos/thinLensFocus/thinLensFocus_S1027.mp4	[ "Find the 3D optics video of thin-lens focusing, showing a lens bringing a beam to a compact focal spot. Physically, the lens converges the beam toward the image point, and the spot is smallest at best focus. The color map represents the normalized irradiance field, so brightness peaks sharply where the converging ...	[ "videos/thinLensFocus/thinLensFocus_S1030.mp4", "videos/thinLensFocus/thinLensFocus_S1037.mp4", "videos/thinLensFocus/thinLensFocus_S1001.mp4", "videos/thinLensFocus/thinLensFocus_S1002.mp4", "videos/thinLensFocus/thinLensFocus_S1102.mp4" ]
Find the 3D optics video of thin-lens focusing, showing a lens bringing a beam to a compact focal spot. Physically, the lens converges the beam toward the image point, and the spot is smallest at best focus. The color map represents the normalized irradiance field, so brightness peaks sharply where the converging beam ...	videos/thinLensFocus/thinLensFocus_S1028.mp4	[ "Find the 3D optics video of thin-lens focusing, showing a lens bringing a beam to a compact focal spot. Physically, the lens converges the beam toward the image point, and the spot is smallest at best focus. The color map represents the normalized irradiance field, so brightness peaks sharply where the converging ...	[ "videos/thinLensFocus/thinLensFocus_S1146.mp4", "videos/thinLensFocus/thinLensFocus_S1145.mp4", "videos/thinLensFocus/thinLensFocus_S1077.mp4", "videos/thinLensFocus/thinLensFocus_S1100.mp4", "videos/thinLensFocus/thinLensFocus_S1083.mp4" ]
Find the 3D optics video of thin-lens focusing, showing a lens bringing a beam to a compact focal spot. Physically, the lens converges the beam toward the image point, and the spot is smallest at best focus. The color map represents the normalized irradiance field, so brightness peaks sharply where the converging beam ...	videos/thinLensFocus/thinLensFocus_S1030.mp4	[ "Find the 3D optics video of thin-lens focusing, showing a lens bringing a beam to a compact focal spot. Physically, the lens converges the beam toward the image point, and the spot is smallest at best focus. The color map represents the normalized irradiance field, so brightness peaks sharply where the converging ...	[ "videos/thinLensFocus/thinLensFocus_S1086.mp4", "videos/thinLensFocus/thinLensFocus_S1082.mp4", "videos/thinLensFocus/thinLensFocus_S1148.mp4", "videos/thinLensFocus/thinLensFocus_S1077.mp4", "videos/thinLensFocus/thinLensFocus_S1080.mp4" ]
Find the 3D optics video of thin-lens focusing, showing a lens bringing a beam to a compact focal spot. Physically, the lens converges the beam toward the image point, and the spot is smallest at best focus. The color map represents the normalized irradiance field, so brightness peaks sharply where the converging beam ...	videos/thinLensFocus/thinLensFocus_S1031.mp4	[ "Find the 3D optics video of thin-lens focusing, showing a lens bringing a beam to a compact focal spot. Physically, the lens converges the beam toward the image point, and the spot is smallest at best focus. The color map represents the normalized irradiance field, so brightness peaks sharply where the converging ...	[ "videos/thinLensFocus/thinLensFocus_S1100.mp4", "videos/thinLensFocus/thinLensFocus_S1065.mp4", "videos/thinLensFocus/thinLensFocus_S1131.mp4", "videos/thinLensFocus/thinLensFocus_S1119.mp4", "videos/thinLensFocus/thinLensFocus_S1011.mp4" ]
Find the 3D optics video of thin-lens focusing, showing a lens bringing a beam to a compact focal spot. Physically, the lens converges the beam toward the image point, and the spot is smallest at best focus. The color map represents the normalized irradiance field, so brightness peaks sharply where the converging beam ...	videos/thinLensFocus/thinLensFocus_S1032.mp4	[ "Find the 3D optics video of thin-lens focusing, showing a lens bringing a beam to a compact focal spot. Physically, the lens converges the beam toward the image point, and the spot is smallest at best focus. The color map represents the normalized irradiance field, so brightness peaks sharply where the converging ...	[ "videos/thinLensFocus/thinLensFocus_S1085.mp4", "videos/thinLensFocus/thinLensFocus_S1005.mp4", "videos/thinLensFocus/thinLensFocus_S1023.mp4", "videos/thinLensFocus/thinLensFocus_S1080.mp4", "videos/thinLensFocus/thinLensFocus_S1115.mp4" ]
Find the 3D optics video of thin-lens focusing, showing a lens bringing a beam to a compact focal spot. Physically, the lens converges the beam toward the image point, and the spot is smallest at best focus. The color map represents the normalized irradiance field, so brightness peaks sharply where the converging beam ...	videos/thinLensFocus/thinLensFocus_S1034.mp4	[ "Find the 3D optics video of thin-lens focusing, showing a lens bringing a beam to a compact focal spot. Physically, the lens converges the beam toward the image point, and the spot is smallest at best focus. The color map represents the normalized irradiance field, so brightness peaks sharply where the converging ...	[ "videos/thinLensFocus/thinLensFocus_S1030.mp4", "videos/thinLensFocus/thinLensFocus_S1037.mp4", "videos/thinLensFocus/thinLensFocus_S1150.mp4", "videos/thinLensFocus/thinLensFocus_S1089.mp4", "videos/thinLensFocus/thinLensFocus_S1052.mp4" ]
Find the 3D optics video of thin-lens focusing, showing a lens bringing a beam to a compact focal spot. Physically, the lens converges the beam toward the image point, and the spot is smallest at best focus. The color map represents the normalized irradiance field, so brightness peaks sharply where the converging beam ...	videos/thinLensFocus/thinLensFocus_S1036.mp4	[ "Find the 3D optics video of thin-lens focusing, showing a lens bringing a beam to a compact focal spot. Physically, the lens converges the beam toward the image point, and the spot is smallest at best focus. The color map represents the normalized irradiance field, so brightness peaks sharply where the converging ...	[ "videos/thinLensFocus/thinLensFocus_S1155.mp4", "videos/thinLensFocus/thinLensFocus_S1149.mp4", "videos/thinLensFocus/thinLensFocus_S1145.mp4", "videos/thinLensFocus/thinLensFocus_S1073.mp4", "videos/thinLensFocus/thinLensFocus_S1104.mp4" ]
Find the 3D optics video of thin-lens focusing, showing a lens bringing a beam to a compact focal spot. Physically, the lens converges the beam toward the image point, and the spot is smallest at best focus. The color map represents the normalized irradiance field, so brightness peaks sharply where the converging beam ...	videos/thinLensFocus/thinLensFocus_S1037.mp4	[ "Find the 3D optics video of thin-lens focusing, showing a lens bringing a beam to a compact focal spot. Physically, the lens converges the beam toward the image point, and the spot is smallest at best focus. The color map represents the normalized irradiance field, so brightness peaks sharply where the converging ...	[ "videos/thinLensFocus/thinLensFocus_S1142.mp4", "videos/thinLensFocus/thinLensFocus_S1100.mp4", "videos/thinLensFocus/thinLensFocus_S1128.mp4", "videos/thinLensFocus/thinLensFocus_S1139.mp4", "videos/thinLensFocus/thinLensFocus_S1077.mp4" ]
Find the 3D optics video of thin-lens focusing, showing a lens bringing a beam to a compact focal spot. Physically, the lens converges the beam toward the image point, and the spot is smallest at best focus. The color map represents the normalized irradiance field, so brightness peaks sharply where the converging beam ...	videos/thinLensFocus/thinLensFocus_S1041.mp4	[ "Find the 3D optics video of thin-lens focusing, showing a lens bringing a beam to a compact focal spot. Physically, the lens converges the beam toward the image point, and the spot is smallest at best focus. The color map represents the normalized irradiance field, so brightness peaks sharply where the converging ...	[ "videos/thinLensFocus/thinLensFocus_S1141.mp4", "videos/thinLensFocus/thinLensFocus_S1008.mp4", "videos/thinLensFocus/thinLensFocus_S1132.mp4", "videos/thinLensFocus/thinLensFocus_S1080.mp4", "videos/thinLensFocus/thinLensFocus_S1087.mp4" ]
Find the 3D optics video of thin-lens focusing, showing a lens bringing a beam to a compact focal spot. Physically, the lens converges the beam toward the image point, and the spot is smallest at best focus. The color map represents the normalized irradiance field, so brightness peaks sharply where the converging beam ...	videos/thinLensFocus/thinLensFocus_S1046.mp4	[ "Find the 3D optics video of thin-lens focusing, showing a lens bringing a beam to a compact focal spot. Physically, the lens converges the beam toward the image point, and the spot is smallest at best focus. The color map represents the normalized irradiance field, so brightness peaks sharply where the converging ...	[ "videos/thinLensFocus/thinLensFocus_S1147.mp4", "videos/thinLensFocus/thinLensFocus_S1051.mp4", "videos/thinLensFocus/thinLensFocus_S1099.mp4", "videos/thinLensFocus/thinLensFocus_S1005.mp4", "videos/thinLensFocus/thinLensFocus_S1076.mp4" ]
Find the 3D optics video of thin-lens focusing, showing a lens bringing a beam to a compact focal spot. Physically, the lens converges the beam toward the image point, and the spot is smallest at best focus. The color map represents the normalized irradiance field, so brightness peaks sharply where the converging beam ...	videos/thinLensFocus/thinLensFocus_S1047.mp4	[ "Find the 3D optics video of thin-lens focusing, showing a lens bringing a beam to a compact focal spot. Physically, the lens converges the beam toward the image point, and the spot is smallest at best focus. The color map represents the normalized irradiance field, so brightness peaks sharply where the converging ...	[ "videos/thinLensFocus/thinLensFocus_S1127.mp4", "videos/thinLensFocus/thinLensFocus_S1142.mp4", "videos/thinLensFocus/thinLensFocus_S1137.mp4", "videos/thinLensFocus/thinLensFocus_S1004.mp4", "videos/thinLensFocus/thinLensFocus_S1141.mp4" ]
Find the 3D optics video of thin-lens focusing, showing a lens bringing a beam to a compact focal spot. Physically, the lens converges the beam toward the image point, and the spot is smallest at best focus. The color map represents the normalized irradiance field, so brightness peaks sharply where the converging beam ...	videos/thinLensFocus/thinLensFocus_S1048.mp4	[ "Find the 3D optics video of thin-lens focusing, showing a lens bringing a beam to a compact focal spot. Physically, the lens converges the beam toward the image point, and the spot is smallest at best focus. The color map represents the normalized irradiance field, so brightness peaks sharply where the converging ...	[ "videos/thinLensFocus/thinLensFocus_S1136.mp4", "videos/thinLensFocus/thinLensFocus_S1131.mp4", "videos/thinLensFocus/thinLensFocus_S1027.mp4", "videos/thinLensFocus/thinLensFocus_S1053.mp4", "videos/thinLensFocus/thinLensFocus_S1124.mp4" ]
Find the 3D optics video of thin-lens focusing, showing a lens bringing a beam to a compact focal spot. Physically, the lens converges the beam toward the image point, and the spot is smallest at best focus. The color map represents the normalized irradiance field, so brightness peaks sharply where the converging beam ...	videos/thinLensFocus/thinLensFocus_S1049.mp4	[ "Find the 3D optics video of thin-lens focusing, showing a lens bringing a beam to a compact focal spot. Physically, the lens converges the beam toward the image point, and the spot is smallest at best focus. The color map represents the normalized irradiance field, so brightness peaks sharply where the converging ...	[ "videos/thinLensFocus/thinLensFocus_S1094.mp4", "videos/thinLensFocus/thinLensFocus_S1138.mp4", "videos/thinLensFocus/thinLensFocus_S1027.mp4", "videos/thinLensFocus/thinLensFocus_S1052.mp4", "videos/thinLensFocus/thinLensFocus_S1051.mp4" ]
Find the 3D optics video of thin-lens focusing, showing a lens bringing a beam to a compact focal spot. Physically, the lens converges the beam toward the image point, and the spot is smallest at best focus. The color map represents the normalized irradiance field, so brightness peaks sharply where the converging beam ...	videos/thinLensFocus/thinLensFocus_S1050.mp4	[ "Find the 3D optics video of thin-lens focusing, showing a lens bringing a beam to a compact focal spot. Physically, the lens converges the beam toward the image point, and the spot is smallest at best focus. The color map represents the normalized irradiance field, so brightness peaks sharply where the converging ...	[ "videos/thinLensFocus/thinLensFocus_S1124.mp4", "videos/thinLensFocus/thinLensFocus_S1118.mp4", "videos/thinLensFocus/thinLensFocus_S1134.mp4", "videos/thinLensFocus/thinLensFocus_S1030.mp4", "videos/thinLensFocus/thinLensFocus_S1002.mp4" ]
Find the 3D optics video of thin-lens focusing, showing a lens bringing a beam to a compact focal spot. Physically, the lens converges the beam toward the image point, and the spot is smallest at best focus. The color map represents the normalized irradiance field, so brightness peaks sharply where the converging beam ...	videos/thinLensFocus/thinLensFocus_S1051.mp4	[ "Find the 3D optics video of thin-lens focusing, showing a lens bringing a beam to a compact focal spot. Physically, the lens converges the beam toward the image point, and the spot is smallest at best focus. The color map represents the normalized irradiance field, so brightness peaks sharply where the converging ...	[ "videos/thinLensFocus/thinLensFocus_S1022.mp4", "videos/thinLensFocus/thinLensFocus_S1155.mp4", "videos/thinLensFocus/thinLensFocus_S1017.mp4", "videos/thinLensFocus/thinLensFocus_S1131.mp4", "videos/thinLensFocus/thinLensFocus_S1144.mp4" ]
Find the 3D optics video of thin-lens focusing, showing a lens bringing a beam to a compact focal spot. Physically, the lens converges the beam toward the image point, and the spot is smallest at best focus. The color map represents the normalized irradiance field, so brightness peaks sharply where the converging beam ...	videos/thinLensFocus/thinLensFocus_S1052.mp4	[ "Find the 3D optics video of thin-lens focusing, showing a lens bringing a beam to a compact focal spot. Physically, the lens converges the beam toward the image point, and the spot is smallest at best focus. The color map represents the normalized irradiance field, so brightness peaks sharply where the converging ...	[ "videos/thinLensFocus/thinLensFocus_S1080.mp4", "videos/thinLensFocus/thinLensFocus_S1082.mp4", "videos/thinLensFocus/thinLensFocus_S1142.mp4", "videos/thinLensFocus/thinLensFocus_S1119.mp4", "videos/thinLensFocus/thinLensFocus_S1013.mp4" ]
Find the 3D optics video of thin-lens focusing, showing a lens bringing a beam to a compact focal spot. Physically, the lens converges the beam toward the image point, and the spot is smallest at best focus. The color map represents the normalized irradiance field, so brightness peaks sharply where the converging beam ...	videos/thinLensFocus/thinLensFocus_S1053.mp4	[ "Find the 3D optics video of thin-lens focusing, showing a lens bringing a beam to a compact focal spot. Physically, the lens converges the beam toward the image point, and the spot is smallest at best focus. The color map represents the normalized irradiance field, so brightness peaks sharply where the converging ...	[ "videos/thinLensFocus/thinLensFocus_S1108.mp4", "videos/thinLensFocus/thinLensFocus_S1036.mp4", "videos/thinLensFocus/thinLensFocus_S1087.mp4", "videos/thinLensFocus/thinLensFocus_S1031.mp4", "videos/thinLensFocus/thinLensFocus_S1051.mp4" ]
Find the 3D optics video of thin-lens focusing, showing a lens bringing a beam to a compact focal spot. Physically, the lens converges the beam toward the image point, and the spot is smallest at best focus. The color map represents the normalized irradiance field, so brightness peaks sharply where the converging beam ...	videos/thinLensFocus/thinLensFocus_S1055.mp4	[ "Find the 3D optics video of thin-lens focusing, showing a lens bringing a beam to a compact focal spot. Physically, the lens converges the beam toward the image point, and the spot is smallest at best focus. The color map represents the normalized irradiance field, so brightness peaks sharply where the converging ...	[ "videos/thinLensFocus/thinLensFocus_S1139.mp4", "videos/thinLensFocus/thinLensFocus_S1064.mp4", "videos/thinLensFocus/thinLensFocus_S1102.mp4", "videos/thinLensFocus/thinLensFocus_S1111.mp4", "videos/thinLensFocus/thinLensFocus_S1134.mp4" ]
Find the 3D optics video of thin-lens focusing, showing a lens bringing a beam to a compact focal spot. Physically, the lens converges the beam toward the image point, and the spot is smallest at best focus. The color map represents the normalized irradiance field, so brightness peaks sharply where the converging beam ...	videos/thinLensFocus/thinLensFocus_S1060.mp4	[ "Find the 3D optics video of thin-lens focusing, showing a lens bringing a beam to a compact focal spot. Physically, the lens converges the beam toward the image point, and the spot is smallest at best focus. The color map represents the normalized irradiance field, so brightness peaks sharply where the converging ...	[ "videos/thinLensFocus/thinLensFocus_S1079.mp4", "videos/thinLensFocus/thinLensFocus_S1119.mp4", "videos/thinLensFocus/thinLensFocus_S1065.mp4", "videos/thinLensFocus/thinLensFocus_S1146.mp4", "videos/thinLensFocus/thinLensFocus_S1085.mp4" ]
Find the 3D optics video of thin-lens focusing, showing a lens bringing a beam to a compact focal spot. Physically, the lens converges the beam toward the image point, and the spot is smallest at best focus. The color map represents the normalized irradiance field, so brightness peaks sharply where the converging beam ...	videos/thinLensFocus/thinLensFocus_S1061.mp4	[ "Find the 3D optics video of thin-lens focusing, showing a lens bringing a beam to a compact focal spot. Physically, the lens converges the beam toward the image point, and the spot is smallest at best focus. The color map represents the normalized irradiance field, so brightness peaks sharply where the converging ...	[ "videos/thinLensFocus/thinLensFocus_S1149.mp4", "videos/thinLensFocus/thinLensFocus_S1146.mp4", "videos/thinLensFocus/thinLensFocus_S1017.mp4", "videos/thinLensFocus/thinLensFocus_S1021.mp4", "videos/thinLensFocus/thinLensFocus_S1128.mp4" ]
Find the 3D optics video of thin-lens focusing, showing a lens bringing a beam to a compact focal spot. Physically, the lens converges the beam toward the image point, and the spot is smallest at best focus. The color map represents the normalized irradiance field, so brightness peaks sharply where the converging beam ...	videos/thinLensFocus/thinLensFocus_S1062.mp4	[ "Find the 3D optics video of thin-lens focusing, showing a lens bringing a beam to a compact focal spot. Physically, the lens converges the beam toward the image point, and the spot is smallest at best focus. The color map represents the normalized irradiance field, so brightness peaks sharply where the converging ...	[ "videos/thinLensFocus/thinLensFocus_S1117.mp4", "videos/thinLensFocus/thinLensFocus_S1073.mp4", "videos/thinLensFocus/thinLensFocus_S1027.mp4", "videos/thinLensFocus/thinLensFocus_S1053.mp4", "videos/thinLensFocus/thinLensFocus_S1148.mp4" ]
Find the 3D optics video of thin-lens focusing, showing a lens bringing a beam to a compact focal spot. Physically, the lens converges the beam toward the image point, and the spot is smallest at best focus. The color map represents the normalized irradiance field, so brightness peaks sharply where the converging beam ...	videos/thinLensFocus/thinLensFocus_S1064.mp4	[ "Find the 3D optics video of thin-lens focusing, showing a lens bringing a beam to a compact focal spot. Physically, the lens converges the beam toward the image point, and the spot is smallest at best focus. The color map represents the normalized irradiance field, so brightness peaks sharply where the converging ...	[ "videos/thinLensFocus/thinLensFocus_S1041.mp4", "videos/thinLensFocus/thinLensFocus_S1148.mp4", "videos/thinLensFocus/thinLensFocus_S1082.mp4", "videos/thinLensFocus/thinLensFocus_S1141.mp4", "videos/thinLensFocus/thinLensFocus_S1065.mp4" ]