Optical: systems and elements – Deflection using a moving element – Using a periodically moving element
Patent
1995-06-06
1996-12-10
Lee, John D.
Optical: systems and elements
Deflection using a moving element
Using a periodically moving element
359210, 359819, 359821, G02B 702
Patent
active
055836860
ABSTRACT:
A lens assembly installation of scanner comprises a sliding base being movable inside the scanner horizontally and longitudinally on which is disposed a projection lamp, a light filtering lens assembly and a camera. Characterized in that the light filtering lens assembly includes a stepping motor, a support plate, a lens bracket and four pieces of lens, wherein the lens bracket shaped as a circular arc wherein four windows are disposed one-by-one parallelly has a plurality of screw holes disposed at the top. An opening at the top rim of the window and a U-channel, to accommodate the lens, in the inner rim of the window are provided. The support plate is provided with a shaft hole by which it can be fixed onto the stepping motor shaft and several small holes and projected hold-down plate are provided at its outer rim corresponding respectively to the screw holes on the lens bracket and window which can be locked with the lens bracket to form an integrated unit. This invention simplifies the assembly and the transmission of the light filtering lens assembly.
REFERENCES:
patent: 1118187 (1914-11-01), Depue
patent: 5157430 (1992-10-01), Ogawa
patent: 5241424 (1993-08-01), Watanabe
Lee John D.
Spot Technology Inc.
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