摘要 |
PROBLEM TO BE SOLVED: To obtain a passive type range-finding device for forming an object image on a pair of CCD sensors by a pair of image forming lenses whose range- finding accuracy is improved by extending the focal distance of the image forming lenses without making a camera larger, and the image forming lens therefor. SOLUTION: Each image forming lens is constituted of a positive meniscus single lens having a convex surface on an object side. |