Passively Athermalised Folded Telephoto Vidicon Lens

David G. Norrie

doi:10.1117/12.945178

29 January 1985 Passively Athermalised Folded Telephoto Vidicon Lens

David G. Norrie

Proceedings Volume 0518, Optical Systems Engineering IV; (1985) https://doi.org/10.1117/12.945178
Event: 1984 Cambridge Symposium, 1984, Cambridge, United States

Abstract

A restricted and folded space envelope and the requirement to operate in focus without adjustment over a wide temperature range often leads to an optical system whose design departs significantly from the classical constructions. The design of a folded, passively athermalised 250mm F/2.5 vidicon lens is described, highlighting how the space and environmental constraints strongly governed the form of lens design. Two methods of built in test equipment injection are described.

Citation Download Citation

David G. Norrie "Passively Athermalised Folded Telephoto Vidicon Lens", Proc. SPIE 0518, Optical Systems Engineering IV, (29 January 1985); https://doi.org/10.1117/12.945178

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