Slit illuminating device

Details Slit illuminating device Slit illuminating device

1980-02-28

1982-06-01

Padgett, Benjamin R.

Illumination

Light source and modifier

Including selected wavelength modifier

362 31, 362 32, 362294, 362297, 362298, 362302, 362304, 362346, 355 67, 355 71, F21V 702, F21V 900, F21V 2900, G03B 2754

Patent

active

043331300

ABSTRACT:
A slit illuminating device of a compact size which is capable of performing effective illumination on an image original having a certain amount of thickness such as books, bound documents, etc., the surface of which slightly separates off an original image mounting table when it is placed thereon with its surface to be illuminated being faced down to the table, and which is also capable of uniformly illuminating a slit portion irrespective of slight positional displacement of a light source, whereby the image original can be broadly illuminated with divergent rays from an oblique lower direction in a substantially symmetrical manner.

REFERENCES:
patent: 3920311 (1975-11-01), Tsuda et al.
patent: 4259711 (1981-03-01), Mochizuki

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