Illumination device and luminaire for use therein

Details Illumination device and luminaire for use therein Illumination device and luminaire for use therein

1992-06-09

1994-01-11

Cole, Richard R.

Illumination

Light modifier

Reflector

362 16, 362255, 362346, F21V 700

Patent

active

052787443

ABSTRACT:
The illumination device comprises a housing, a lampholder, a reflector and an electric lamp having a base rigidly connected to its light-diffusing lamp vessel. A light source within the lamp vessel is disposed substantially coaxially with an optical axis of the reflector. The reflector is polygonal in cross sections transverse to its axis and shapes the light generated into a beam, the intensity of which increases from I.sub.o along the optical axis to a value of 105 to 130% thereof at an angle of 5 to 25% to the axis. Scenes illuminated by the device yield evenly exposed photo, film and video images.

REFERENCES:
patent: 3826913 (1974-07-01), Downing et al.
patent: 4021659 (1977-05-01), Wiley
patent: 4293892 (1981-10-01), Plummer
patent: 4414613 (1983-11-01), Mayer
patent: 4494176 (1985-01-01), Sands et al.
patent: 4536831 (1985-08-01), English et al.
patent: 4545000 (1985-10-01), Fraley et al.
patent: 4672514 (1987-06-01), Giller
patent: 4855886 (1989-08-01), Eijkelenboom et al.
patent: 4914557 (1990-04-01), Maassen et al.

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