Photographing device with light quantity adjustment

Details Photographing device with light quantity adjustment Photographing device with light quantity adjustment

2007-07-17

2007-07-17

Ho, Tuan (Department: 2622)

Television

Camera, system and detail

Optics

C348S363000

Reexamination Certificate

active

09810339

ABSTRACT:
The photographing device includes an optical lens, a photographing unit for taking an image of a subject imaged through the optical lens and a light quantity adjustment unit for partially adjusting a light quantity of the image of the subject. The light quantity adjustment unit is provided in an optical path of light carrying the image of the subject and between the optical lens and the photographing unit.

REFERENCES:
patent: 4879592 (1989-11-01), Ernest
patent: 5995145 (1999-11-01), Viliesid
patent: 03-70274 (1991-03-01), None
patent: 63-220878 (1991-09-01), None
patent: 7-298276 (1995-11-01), None
patent: 10-13680 (1998-01-01), None
Patent Abstracts of Japan 10-013680 Jan. 16, 1998.
Patent Abstracts of Japan 07-298276 Nov. 10, 1995.

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