Slit illuminating device

Details Slit illuminating device Slit illuminating device

1979-03-29

1981-03-31

Walsh, Donald P.

Illumination

Light source and modifier

Including reflector

362302, 362305, 362346, 355 67, F21V 700, G03B 2754

Patent

active

042597110

ABSTRACT:
A compact slit illuminating device for use in a copier or the like, wherein a part of the reflecting surface of the upper reflector, partially encircling a light source, is provided with a function which is the same as that of a lower reflector, to achieve a uniform light distribution over the slit, wherein such reflectors are suitable for use in combination with a compound eye lens of a short conjugate length.

REFERENCES:
patent: 3364816 (1968-01-01), Jeffree
patent: 3532424 (1970-10-01), Miles
patent: 3670157 (1972-06-01), Bragg
patent: 3982116 (1976-09-01), Sakuma
patent: 4080064 (1978-03-01), Komori
patent: 4173411 (1979-11-01), Massengeil
Williams, G. T., IBM Tech. Disclosure Bulletin, vol. 14, No. 11, Apr. 1972, pp. 3320-3321.
Bersot et al., IBM Tech. Disclosure Bulletin, vol. 15, No. 2, Jul. 1972, p. 521.
Williams, G. T., IBM Tech. Disclosure Bulletin, vol. 15, No. 2, Jul. 1972, p. 522.

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