Lens system with reduced sensitivities and a method of manufactu

Details Lens system with reduced sensitivities and a method of manufactu Lens system with reduced sensitivities and a method of manufactu

1996-08-12

1998-09-08

Pham, Hoa Q.

Optical: systems and elements

Lens

With variable magnification

G02B 1515

Patent

active

058053484

ABSTRACT:
A lens system has nominal focal length and aberrations and includes a plurality of lens components defined by design parameter values and a special airspace distance. The lens system is characterized in design such that manufacturing deviations from the design parameter values cause a variation from the nominal focal length and a variation in at least one of the aberrations. Both of these deviations can be offset simultaneously by a single change in the special airspace distance.

REFERENCES:
patent: 3294471 (1966-12-01), Back
patent: 3848967 (1974-11-01), Grey
"Modern Optical Engineering", The Design of Optical Systems, by Warren J. Smith, McGraw-Hill Book Co., 1966 -pp. 420-427.
"A Tolerancing Procedure Based on MTF", by Matthew P. Rimmer, Optical Research Associates, Pasadena, California, Presented at the SPIE Meeting on Computer-Aided Optical Design, San Diego, California, Aug. 28-29, 1978.
A Reprint from the "Proceedings of SPIE -The International Society for Optical Engineering", vol. 766 Recent Trends in Optical Systems Design; Computer Lens Design Workshop, Jan. 13-15, 1987, Los Angeles, California, A technical overview of Code V, Version 7, by Bruce R, Irving, Optical Research Associates, Pasadena, California.

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