Image pickup optical system

Details Image pickup optical system Image pickup optical system

1988-11-17

1990-06-05

Henry, Jon W.

350600, 350642, 350276R, G02B 1700, G02B 508, G02B 2718

Patent

active

049308815

ABSTRACT:
The reflecting mirror for leading the image forming light bundle emitted from an image pickup optical system to an image forming surface has an area for reflecting the effective image forming light bundle, and another marginal area which is located outside said area, and has a reflecting characteristic different from that of said area and varying gradually outward. Accordingly, the reflecting mirror is capable of blurring the boundary of the veiling glare and reducing appearance of detrimental images. The variation of the reflecting characteristic on said outside marginal area can be realized by varying reflectance or light diffusing characteristic of the outside marginal area.

REFERENCES:
patent: 1437850 (1922-12-01), Hodny
patent: 4129671 (1978-12-01), Greenberg
patent: 4630905 (1986-12-01), Blow

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