Lens optical system

Details Lens optical system Lens optical system

2007-11-13

2007-11-13

Spector, David N. (Department: 2873)

Optical: systems and elements

Lens

Single component with multiple elements

C359S570000

Reexamination Certificate

active

09451080

ABSTRACT:
A lens optical system is provided with a cemented lens element formed by cementing two constituent lens elements made of different optical materials together, with a diffractive optical surface formed at the cementing interface between the two constituent lens elements. The two constituent lens elements have at their respective interfaces with air a radius of curvature different from the radius of curvature that they have at the cementing interface.

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Ebstein, Steven M., “Nearly index-matched optics for ashperical, diffractive, and achromatic phase diffrsctive elemtents.” Optic Letters, vol. 21, No. 18, Sep. 15, 1996, pp. 1454-1456.

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