Title:
VIBRATIONPROOF OPTICAL SYSTEM
Document Type and Number:
Japanese Patent JPH03141318
Kind Code:
A
Abstract:
PURPOSE:To rapidly and well correct the blur of images without deteriorating imaging performance by providing a main lens system which forms an object image and a lens group, the face on the extreme object side and the face on the extreme image side of which are both concave with the exit pupil of the main lens system, and inclining the lens group relative to the optical axis. CONSTITUTION:The main lens system which forms the object image and the lens part, the face on the extreme object side and the face on the extreme image side of which are both concave with the exit pupil of the main lens system, are provided and the lens group is inclined relative to the optical axis. Namely, the lens group, the face on the extreme object side and the face on the extreme image side of which are both concave with the exit pupil of the main lens system, is inclined relative to the optical axis in place of a parallel plane plate. The displacement quantity of the image on the image plane is, therefore, sufficiently increased even with a slight angle of inclination and as a result, the change in the incident angle on the periphery is decreased as compared with the parallel plane plate and the difference in the correction rate between the central part and peripheral part of the image plane is decreased. The blur of the image when the photographic lens is deviated is rapidly and well corrected in this way without deteriorating the imaging performance.
Inventors:
KIKUCHI TOSHIRO
Application Number:
JP24612089A
Publication Date:
June 17, 1991
Filing Date:
September 21, 1989
Export Citation:
Assignee:
OLYMPUS OPTICAL CO
International Classes:
G02B27/64; G03B5/00; (IPC1-7): G02B27/64; G03B5/00
Attorney, Agent or Firm:
Taiji Shinohara (1 person outside)