Daylight-simulating incandescent lamp light fixture, particularl

Details Daylight-simulating incandescent lamp light fixture, particularl Daylight-simulating incandescent lamp light fixture, particularl

1977-01-25

1978-02-07

Nelson, Peter A.

Illumination

Daylight lighting

Including selected wavelength modifier

350164, 362327, 362343, F21M 700

Patent

active

040728560

ABSTRACT:
To permit employment of an incandescent lamp of about 3000.degree. K color temperature as a light source, the reflector reflecting light to the use area, typically an operating table, a dental chair, or the like, is constructed of a material such as glass having an index of refraction of 1.425 to 1.575, the glass readily permitting passage of infrared radiation. To provide reflected light which corresponds at least approximately to daylight, with a color temperature of 6000.degree. K., the glass is coated with a sequence of materials as set forth in table I, the materials being applied to the glass in the sequence given with increasing distance from the glass carrier, resulting in an overall reflected light of about 5500.degree. K.

REFERENCES:
patent: 2629046 (1953-02-01), Liberman
patent: 3666939 (1972-05-01), Ota
patent: 3829197 (1974-08-01), Thelen
patent: 3839129 (1974-10-01), Neumann
patent: 3847585 (1974-11-01), Chisholm
patent: 3922068 (1975-11-01), Uetsuki
patent: 3936136 (1976-02-01), Ikeda et al.
patent: 3978273 (1976-08-01), Groth

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