Illumination – Photographic lighting – Including specific light modifier
Patent
1996-07-26
1999-08-10
Tso, Laura
Illumination
Photographic lighting
Including specific light modifier
362 16, 362308, 362309, 362329, 362343, F21V 1304
Patent
active
059347791
ABSTRACT:
A reflector includes one closed end, one open end and highly reflecting curving walls. The walls are symmetrical about at least one axis of symmetry. The walls include a first segment and other segments. The first segment has a curved shape and is located at the closed end of the reflector. The first of segment directs most of the light rays incident on it across the axis of symmetry at crossover points, prior to the rays striking the associated target surface. Most of the light rays striking the walls of the first segment near the closed end of the reflector are having crossover points near the light source. Most of the light rays striking the walls of the first segment progressively further away from the closed end of the reflector are having crossover points located progressively closer to the associated target surface. The other segments direct nearly all of light rays incident on the walls of the other segments towards a portion of the associated surface. This portion of the associated surface is located on a side of the axis of symmetry where the light rays are incident on the walls of these other segments.
REFERENCES:
patent: 1577352 (1926-03-01), Caughlan
patent: 1819725 (1931-08-01), Wood
patent: 2277685 (1942-03-01), Bergstrom
patent: 3179898 (1965-04-01), Meltzer
patent: 3191026 (1965-06-01), Perret
patent: 4041344 (1977-08-01), LaGiusa
patent: 4081277 (1978-03-01), Brault et al.
patent: 4683525 (1987-07-01), Camm
patent: 4923860 (1990-05-01), Simons
patent: 4933817 (1990-06-01), Mochizuki et al.
patent: 4991072 (1991-02-01), Malifaud
patent: 5055976 (1991-10-01), Arai
patent: 5136491 (1992-08-01), Kano
patent: 5160192 (1992-11-01), Sugawara
patent: 5195814 (1993-03-01), Hasushita et al.
patent: 5229232 (1993-07-01), Longobardi et al.
patent: 5309329 (1994-05-01), Theil et al.
patent: 5394307 (1995-02-01), Matsuura
patent: 5408363 (1995-04-01), Kano
patent: 5438379 (1995-08-01), Kurematsu
patent: 5535054 (1996-07-01), Shibuya
patent: 5584572 (1996-12-01), Ishikawa
patent: 5586013 (1996-12-01), Winston et al.
patent: 5617163 (1997-04-01), Ohtake
patent: 5641218 (1997-06-01), Sakurai
patent: 5749642 (1998-05-01), Kimura et al.
patent: 5755503 (1998-05-01), Chen et al.
"The Optical Design of Reflectors" by William B. Elmer, Third Edition, Copyright 1989, by TLA Lightning Consultants, Inc., Salem, MA, pp. 42-48 and pp. 142-186.
Eastman Kodak Company
Short Svetlana Z.
Tso Laura
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