Color-corrected lens systems

Details Color-corrected lens systems Color-corrected lens systems

1986-12-19

1988-08-02

Corbin, John K.

350474, G02B 300

Patent

active

047610646

ABSTRACT:
A method is described for selecting optical materials to use in designing color-corrected optical systems. Various dioptric, catadioptric and anamorphic optical systems are described, which use only two different types of optical materials to obtain precise axial color correction at three, four or five wavelengths (depending upon the particular optical materials), with only very small chromatic aberration occurring at wavelengths between the precisely color-corrected wavelengths. Examples of color-corrected lens systems comprising more than two glasses are also described.

REFERENCES:
patent: 2417942 (1947-03-01), Miles
patent: 2663222 (1953-12-01), Rosin et al.
patent: 2850945 (1958-09-01), Kohler
patent: 3395962 (1968-08-01), Herzberger et al.

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