Optical: systems and elements – Single channel simultaneously to or from plural channels
Patent
1997-07-31
1999-08-10
Ben, Loha
Optical: systems and elements
Single channel simultaneously to or from plural channels
359365, 2502036, 244 316, G02B 2710, G01C 2102
Patent
active
059367717
ABSTRACT:
A FLIR system having a refractive FLIR optical configuration including a substantially spherical housing and an optical window disposed in and extending to the outer housing surface. The window aperture diameter exceeds the housing radius and is a near dome-shaped, relatively high dispersive negative lens forming a part of the FLIR optical system and is disposed adjacent a positive relatively low dispersive lens. A first optical system extends to a first housing window for receiving light and is within a hemispherical housing portion comprises an afocal lens system of a first pair of lenses, one lens disposed at a housing wall, a first mirror disposed within the hemisphere and reflecting light passing through the first pair of lenses, a second mirror for receiving the light reflected from the first mirror and reflecting the light along a path parallel to the light impinging upon the first mirror and a further plurality of lenses for transmission of the light reflected from the second mirror. The light reflected from the first mirror preferably is reflected in a direction normal to the light impinging upon the first mirror. A second window is disposed at the housing surface and a second optical system disposed within the housing is bounded by the hemisphere, receives light through the second window and is capable of selectively substituting the second optical system for a portion of the first optical system. Apparatus is provided to selectively substitute the second optical system for the first pair of lenses, the first mirror and the second mirror.
REFERENCES:
patent: 4009848 (1977-03-01), Albert et al.
patent: 4123134 (1978-10-01), Meyers
patent: 5091637 (1992-02-01), Edwards
patent: 5262630 (1993-11-01), Kordulla
patent: 5363235 (1994-11-01), Kiunke et al.
patent: 5510618 (1996-04-01), Blecha et al.
patent: 5796474 (1998-08-01), Squire et al.
Ben Loha
Raytheon Company
LandOfFree
Compact flir optical configuration does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Compact flir optical configuration, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Compact flir optical configuration will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1125824