Illumination – Photographic lighting – Including specific light modifier
Patent
1976-10-14
1978-04-18
Braun, Fred L.
Illumination
Photographic lighting
Including specific light modifier
350 9610, 362 31, 362 32, G03B 1502, F21V 704
Patent
active
040854361
ABSTRACT:
An attachment to an electronic flash unit for converting the unit into a photographic ring light for use with a camera, the attachment including a body member and a plate member attached thereto, with both the body and plate members being fabricated from a transparent material such as an acrylic plastic. The body member has a centrally located opening extending therethrough to define a torus-like configuration. Except for a front surface of the body member and a bottom surface of the base member, these members are covered with a light reflecting material disposed against the remaining outer surfaces thereof. A lens mounting adapter is secured in the opening of the body member for coaxially mounting a camera lens so that the uncovered front surface of the body member faces in the same direction as the camera lens. A mounting member positions the uncovered bottom surface of the base plate against a light emitting portion of the electronic flash unit so that the light from the unit is transmitted through the base plate and into the body member where the light is dispersed throughout the body member and uniformly reflected out through the uncovered front surface of the body member to provide a ring light effect around the camera lens.
REFERENCES:
patent: 2259910 (1941-10-01), Rylsky
patent: 2360663 (1944-10-01), Eddy
patent: 2515437 (1950-07-01), Bisch et al.
patent: 2680844 (1954-06-01), Smith
patent: 2770712 (1956-11-01), Dros
patent: 3474242 (1969-10-01), Forrant
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