Ring light guide

Details Ring light guide Ring light guide

2006-10-24

2006-10-24

Perkey, W. B. (Department: 2851)

Photography

With object illumination for exposure

Having adapter unit

C396S199000, C396S267000, C362S007000, C362S016000, C358S461000

Reexamination Certificate

active

07127163

ABSTRACT:
A ring illuminator (20) has a light channeling section (22) with an input face (24) optically coupling the light channeling section (22) to a flash unit (16) of a camera (12) for obtaining flash illumination therefrom. A ring section (26) is optically coupled to the light channeling section and extends around an aperture for fitting the ring illuminator around a lens (14). The ring section has a rear surface (30) for positioning toward the body of the camera. The rear surface has a plurality of light redirecting features (28) for redirecting at least a portion of the flash illumination from within the ring section outward from the camera, around the lens of the camera.

REFERENCES:
patent: 3474242 (1969-10-01), Forrant
patent: 4085436 (1978-04-01), Weiss
patent: 4921344 (1990-05-01), Duplantis
patent: 6430371 (2002-08-01), Cho
patent: 2001/0010760 (2001-08-01), Saito

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