ASTRONOMICAL DATA COLLECTION METHOD EMPLOYING A NOVEL OPTICAL RETICLE PROJECTOR

Year	Description
1991	Invention patented by Thomas W. Dey on January 31th, 1991. Abstract: An astronomical data collection method employing a novel optical reticle projector. Prior art ground-based optical systems for astronomical data collection typically comprise a main telescope, and a guide telescope comprising an internal reticle. The guide telescope presumably corrects nominal tracking errors, but may itself, by way of the internal reticle, develop supererogatory errors due to differential flexure. The method of the present invention addresses the problem due to differential flexure, and solves it, by minimizing a source of the supererogatory errors, while recreating an internal reticle function in the novel optical reticle projector.
Source: selected by the editor from original sources.

Invention: ASTRONOMICAL DATA COLLECTION METHOD EMPLOYING A NOVEL OPTICAL RETICLE PROJECTOR