Single facet wobble free scanner

Details Single facet wobble free scanner Single facet wobble free scanner

1984-06-18

1986-08-19

Henry, Jon W.

350 69, G02B 2717

Patent

active

046066012

ABSTRACT:
A single facet wobble free light scanner which eliminates the effects of wobble caused by bearing inaccuracies or other mechanical factors. A pentaprism, pentamirror, right angle prism or right angle mirror monogon 30 is rotated about an axis passing through its sides and through the axis of the applied light beam 8. By reflections off of two mirrored surfaces 22, 24, the output light beam 28 creates a plane of light. When, or if, the pentaprism 30 wobbles about the rotational axis, the effects of the wobble are eliminated because via the internal reflections of the pentaprism, the output light beam 28a is parallel to the original output light beam 28, the parallel light beams 28,28a being focused onto the scan surface by external optics 70.

REFERENCES:
patent: 3315177 (1967-04-01), Benson
patent: 3845298 (1974-10-01), Runciman
patent: 3995230 (1976-11-01), See
patent: 4019804 (1977-04-01), Collier
patent: 4082416 (1978-04-01), Runciman et al.
patent: 4084092 (1978-04-01), Runciman

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