A - Human Necessities – 61 – B
Patent
A - Human Necessities
61
B
A61B 1/00 (2006.01) A61B 1/04 (2006.01) A61B 1/055 (2006.01) G02B 13/16 (2006.01) G02B 23/24 (2006.01) G02B 27/22 (2006.01) A61B 19/00 (2006.01)
Patent
CA 2102236
A stereoscopic objective lens system for video endoscopes and borescopes includes a full diameter collimator lens system (110, 112) and a pair of half diameter stereo lens systems (114, 116, 118, 120). The lens systems can be formed of doublet lenses (312) or a combination of singlet (310, 313) and doublet lenses (312, 314, 318), or of gradient index lenses (210, 214, 216) or of a mixture of such lenses. The full-diameter lens system collimates object points, imaging object points to infinity to present equal- angle pairs from symmetrically disposed object points to the small-stereo pair. This equal-angle property enables accurate object/ image mapping onto the final stereo image pair, such that all parts of each left/right image can be mapped to within a fraction of a video pixel to each other.
Mckinley Optics Inc.
Riches Mckenzie & Herbert Llp
LandOfFree
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