A retro-focus type imaging-optical system is disclosed. The imaging-optical system comprises, in order from an object side to an image side a first lens group, an aperture stop, and a second lens group. The first lens group includes, in order from the object side, a positive first F lens group and a negative first R lens group. The first F lens group includes a positive meniscus lens having a convex surface on the object side. The first R lens group includes a negative meniscus lens having a convex surface on the object side and a positive lens. The second lens group includes, in order from the object side, a positive second F lens group and a second R lens group, and the second F lens group includes a positive lens element having a convex meniscus shape on the image side.
IMAGING-OPTICAL SYSTEM, STEREO CAMERA APPARATUS, AND IN-VEHICLE CAMERA APPARATUS
2015-09-10
Patent
Electronic Resource
English
STEREO CAMERA APPARATUS AND VEHICLE PROVIDED WITH STEREO CAMERA APPARATUS
European Patent Office | 2016
|STEREO CAMERA APPARATUS AND VEHICLE PROVIDED WITH STEREO CAMERA APPARATUS
European Patent Office | 2023
|