Patent
1990-04-18
1991-06-18
Henry, Jon W.
350616, 350622, 350102, 350171, G02B 508, G02B 512, G02B 718, G02B 2710
Patent
active
050245147
ABSTRACT:
This invention relates to lateral transfer retroreflectors having a tubular member comprised of a material having dimensions which are relatively stable with respect to temperature. The retroreflector is further comprised of a roof mirror having two reflective surfaces mounted to one end of the tubular member at three coplanar mounting surfaces of the roof mirror. Mounted on the opposite end of the tubular member is a mirror panel having a reflective surface which is perpendicular to both of the reflective surfaces of the roof mirror. The tubular member has openings for light to pass through and thereby reflect off of the roof mirror and the mirror panel. One of the openings increases the effective aperture of the lateral transfer retroreflector.
REFERENCES:
patent: 3663084 (1972-05-01), Lipkins
patent: 3977765 (1976-08-01), Lipkins
patent: 4065204 (1977-12-01), Lipkins
patent: 4319804 (1982-03-01), Lipkins
patent: 4367922 (1983-01-01), Lipkins
Bleier Zvi
Lipkins Morton S.
Henry Jon W.
Precision Lapping & Optical Co., Inc.
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