Optical alignment system
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United States of America Patent
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-
May 8, 1990
Grant Date -
N/A
app pub date -
Jun 23, 1986
filing date -
Jun 23, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A quasi-reticle for an optical device, generated by enhanced multiple reflections. The reticle comprises fixation target generative means operative to generate a line of ghost images or other multiple fixation targets spaced along the optical axis of the optical device, whereby to enable the viewer by aligning his line of sight with the line of multiple fixation targets to position his eye properly with respect to the optical axis of the optical device.
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Cited Art Landscape
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