Optical: systems and elements – Compound lens system – Telescope
Reexamination Certificate
2011-04-05
2011-04-05
Allen, Stephone B (Department: 2872)
Optical: systems and elements
Compound lens system
Telescope
C359S529000, C250S203200, C382S103000, C382S107000
Reexamination Certificate
active
07920324
ABSTRACT:
A system and method for telescope guiding requires creating an artificial reference star which is locked to the line of sight of the imaging means of a main telescope in the field-of-view (FOV) of a guide scope. A real guide star is selected using the guide scope, such that both artificial and guide stars are within the FOV of the guide scope. Guiding is accomplished by varying the line of sight such that the positional displacement between the guide and artificial stars on the guide star's focal plane is maintained approximately constant. The artificial star is created by generating a point source of light near the main scope's imaging means, directing the light outside the main scope and retroreflecting it at the same direction angle of the beam exiting the aperture into the guide scope, effectively locking the guide scope to the line of sight of the imaging means.
REFERENCES:
patent: 5150256 (1992-09-01), Dey
patent: 5365269 (1994-11-01), Holmes et al.
patent: 5525793 (1996-06-01), Holmes et al.
patent: 2006/0171560 (2006-08-01), Manus
patent: 298317 (1992-02-01), None
patent: 2000305024 (2000-11-01), None
Gardner, C. S. et al., “Design and Performance Analysis of Adaptive Optical Telescopes Using Laser Guide Stars”, Proceedings of the IEEE, IEEE., New York, vol. 78, No. 11, Nov. 1, 1990, pp. 1721-1743.
PCT Notification of the International Search Report and the Written Opinion of the International Searching Authority, Dated Jul. 21, 2008; for International Application No. PCT/US2008/004017.
Allen Stephone B
Aplegen, Inc.
Chapel Derek S
Koppel, Patrick, Heybl & Dawson
LandOfFree
System and method for telescope guiding utilizing an... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with System and method for telescope guiding utilizing an..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System and method for telescope guiding utilizing an... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2689284