Incremental printing of symbolic information – Light or beam marking apparatus or processes – Scan of light
Patent
1993-06-23
1996-04-02
Fuller, Benjamin R.
Incremental printing of symbolic information
Light or beam marking apparatus or processes
Scan of light
347241, B41J 2435, G02B 2700
Patent
active
055045162
ABSTRACT:
An electro-optical head assembly for use in an optical printer or scanner, the electro-optical head assembly including a linear array of electro-optical elements mounted on an elongate support member, a linear lens array held in a rigid lens mount, extending in parallel with the array of electro-optical elements, and means for mounting the lens mount on the support member while maintaining a predetermined distance between the linear array of electro-optical elements and linear lens array over the entire length thereof, the mounting means comprising two elongated plates provided along opposite longitudinal sides of the arrays and having respective first longitudinal edge portions secured to the support member and second longitudinal edge portions, wherein the second longitudinal edge portion of each plate is secured to the lens mount, and each plate is provided with a pattern of holes and/or slots leaving in each plate only a number of separate hinge elements which extend from the first to the second longitudinal edge portion and are flexible in a longitudinal direction of the respective arrays so as to maintain a correct distance between the lens array and the array of electro-optical elements over the entire length of the head assembly, even if a slight axial displacement of the lens mount relative to the support member occurs in the case of uneven thermal expansion.
REFERENCES:
patent: 4715682 (1987-12-01), Koek et al.
patent: 4821051 (1989-04-01), Hediger
patent: 4850674 (1989-07-01), Hasselskog
patent: 5036339 (1991-07-01), Hediger
patent: 5121146 (1992-06-01), Smith et al.
patent: 5235348 (1993-08-01), Avonts
Fuller Benjamin R.
OCE-Nederland, B.V.
Yockey David
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