Title:
光学系
Document Type and Number:
Japanese Patent JP6598314
Kind Code:
B2
Abstract:
An optical system for a camera includes a convex reflector, a decompression lens, and an image sensor. The convex reflector has a first diameter and a non-parabolic, axially symmetric, aspheric surface that provides a virtual curved and compressed image of a scene having a non-parabolic image compression. The decompression lens is positioned to receive the virtual curved and compressed image. The decompression lens is configured to decompress the virtual curved and compressed image into a real image having a parabolic image decompression and project the real image. The image sensor is positioned to receive the real image. The real image has a second diameter at the image sensor that is less than the first diameter. A ratio of the first diameter to the second diameter is between 6.5:1 and 2.3:1. The optical system provides a polychromatic modulation transfer function of 30% or more for 150 cy/mm.
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Inventors:
Torbuco, surge
Menon, rug
Z, Yangiu
Twolinski, Mike
Menon, rug
Z, Yangiu
Twolinski, Mike
Application Number:
JP2017533738A
Publication Date:
October 30, 2019
Filing Date:
September 15, 2015
Export Citation:
Assignee:
Remote reality corporation
International Classes:
G02B13/06; G02B13/18; G02B17/08; G03B15/00; G03B37/00
Domestic Patent References:
| JP2002236256A | ||||
| JP2005338654A |
Foreign References:
| US20020109772 |
Attorney, Agent or Firm:
Longhua International Patent Service Corporation