Recorders – Light or beam recording – Including record receiver or handling means therefor
Patent
1988-09-01
1989-10-17
Reynolds, Bruce A.
Recorders
Light or beam recording
Including record receiver or handling means therefor
346160, 358302, G01D 1514, G01D 942
Patent
active
048750573
ABSTRACT:
Modular optical LED printhead arranged for a fixed focus distance outside the printhead structure. A supporting and registration plate contains a rectangular opening in which the lens is located. The plate is secured to the overall LED supporting structure of the printhead by end members which, with side members, completely seal the LED's and connections from contaminants. The registration plate has at least two surfaces thereon which mate with surfaces in the associated apparatus to accurately position the plate. During the alignment process of the printhead, the lens and plate are adjusted to provide a focus at a fixed distance from one of the registration surfaces of the plate. Alignment of the lens across the axis of the LED array is provided by recessed set screws and a shim. Because of the fixed distance from the registration surface, the printhead can be installed in suitably constructed apparatus without further alignment.
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patent: 4780730 (1988-10-01), Dodge
Hediger Edwin A.
Ng Yee S.
Pham Hieu
Eastman Kodak Company
Hanway J. R.
Reynolds Bruce A.
Rogers Scott
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