Scanner carriage lamp reflector and method of using same

Details Scanner carriage lamp reflector and method of using same Scanner carriage lamp reflector and method of using same

1998-02-25

1999-10-26

Phan, James

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359196, 362297, G02B 2608

Patent

active

059738154

ABSTRACT:
A screen-printed reflector reflectively redirects light from a scanner bulb in a substantially uniform illumination pattern across a desired scan area of a document to be scanned. A middle or central portion of the reflector is printed with a non-reflective pattern, while the end portions of the reflector are composed of highly reflective polyester textured matte that in combination with the non-reflective pattern substantially equalizes the illumination across the desired scan area of the document being scanned. The manner of using and constructing the screen printed reflector, provides a fast and efficient method for tuning a light distribution profile to provide a sufficient light reflective pattern that compensates for non-uniform light distribution patterns produced by scanner bulbs.

REFERENCES:
patent: 5537240 (1996-07-01), Wun et al.

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