NASA NTRS · 19700000342
Improved optical lens system
Abstract
Objective lens produces a backwardly curving image of a star field that matches the similarly curved surface of the photocathode of an image dissector tube. Lens eliminates the need for a fiber-optics translation between the flat plane image and curved photocathode.
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Schmidt, L. F.. 1970-09-01. Improved optical lens system. https://ntrs.nasa.gov/citations/19700000342
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