Precision Molded Aspheric Lenses For A Camera And For A Compact Disc System

Tetsuro Izumitani; Shinichiro Hirota; Isao Ishibai; Ryuji Kobayashi

doi:10.1117/12.949249

14 February 1986 Precision Molded Aspheric Lenses For A Camera And For A Compact Disc System

Tetsuro Izumitani, Shinichiro Hirota, Isao Ishibai, Ryuji Kobayashi

Proceedings Volume 0554, 1985 International Lens Design Conference; (1986) https://doi.org/10.1117/12.949249
Event: 1985 International Lens Design Conference, 1985, Cherry Hill, United States

Abstract

Aspheric lenses of conventional optical glasses have been molded. A 16 mm diameter photographic lens with aspheric figure error of 0.6)1m, accuracy error of 0.04 μm, decenter of 75" and surface roughness of 200 Å Rmax has been obtained. For an aspheric pickup lens in a compact disc system, a wave-front aberration within 0.04 μm rms has been obtained.

Citation Download Citation

Tetsuro Izumitani, Shinichiro Hirota, Isao Ishibai, and Ryuji Kobayashi "Precision Molded Aspheric Lenses For A Camera And For A Compact Disc System", Proc. SPIE 0554, 1985 International Lens Design Conference, (14 February 1986); https://doi.org/10.1117/12.949249

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