Abstract

Some radiometric properties of gradient-index fiber lenses and lens arrays are explored. Consideration is restricted to the paraxial region of fibers that produce erect images at unit magnification. In two instances the radiometric properties of these lenses and lens arrays are considerably different from the properties of conventional (nongradient) lenses. First, the off-axis image plane irradiance for a single gradient-index fiber falls off far more rapidly than the familiar cos⁴ law. Second, the exposure (integrated image irradiance) for a fiber array is independent of the object-to-image distance.

© 1980 Optical Society of America

Application of gradient-index fiber arrays to copying machines

Motoaki Kawazu and Yukio Ogura
Appl. Opt. 19(7) 1105-1112 (1980)

Radiometric analysis of gradient-index lens arrays for reduction/enlargement

William Lama and John Alan Durbin
Appl. Opt. 24(24) 4349-4355 (1985)

Optical properties of GRIN fiber lens arrays: dependence on fiber length

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Appl. Opt. 21(15) 2739-2746 (1982)

Reduction/enlargement gradient-index lens array

James D. Rees and William Lama
Appl. Opt. 23(11) 1715-1724 (1984)

Imaging and radiometric properties of microlens arrays

N. F. Borrelli, R. H. Bellman, J. A. Durbin, and W. Lama
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