Incremental printing of symbolic information – Light or beam marking apparatus or processes – Scan of light
Patent
1996-06-07
1998-08-18
Fuller, Benjamin R.
Incremental printing of symbolic information
Light or beam marking apparatus or processes
Scan of light
347134, B41J 247, G01D 1534, G02B 2600, G02B 2700
Patent
active
057964211
ABSTRACT:
A positioning apparatus of an optical element in the form of a thin film includes at least one positioning element having a surface opposed to the optical element without contacting the same, together with a mechanism for moving at least one of the optical element or the positioning element, in a direction parallel to a plane of the thin film. The opposed surface of the positioning element produces a fluid force when relative movement between the optical element and the opposed surface of the positioning element occurs and serves to hold the thin film at a predetermined position. An optical scanner incorporating such a positioning apparatus is also disclosed.
REFERENCES:
patent: 3657710 (1972-04-01), Billawala
patent: 4428069 (1984-01-01), Hazel et al.
patent: 4666315 (1987-05-01), Scranton
patent: 4814799 (1989-03-01), Lu
patent: 4906081 (1990-03-01), Yasuda
patent: 5043621 (1991-08-01), Culp
patent: 5124829 (1992-06-01), Ishikawa
Fluid Film Lubrication, by William A. Gross et al., Chapter 4, Sections 4 through 4-6 (pp. 157-241), pp. 56-95.
Asahi Kogaku Kogyo Kabushiki Kaisha
Fuller Benjamin R.
Gordon Raquel Yvette
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