1984-07-20
1987-08-25
Arnold, Bruce Y.
G02B 532
Patent
active
046888802
ABSTRACT:
A hologram lens of the present invention has a spherical hologram surface, the center of said spherical surface being in agreement with a focal point of the lens, and the radius of said spherical surface being in agreement with a focal distance of the lens. Therefore, the hologram lens of the invention produces little aberration.
REFERENCES:
patent: 4306763 (1981-12-01), Huignard
patent: 4312569 (1982-01-01), Harada et al.
patent: 4412719 (1983-11-01), Fienup
Jagoszewski, E., "The Influence of Hologram Surface Curvature on the Holographic Image Quality" Optik 69, No. 2, pp. 85-88 (1985), (paper given, outside U.S., on Jun. 12-16, 1984).
Kataoka Keiji
Tatsuno Kimio
Yonezawa Seiji
Arnold Bruce Y.
Hitachi , Ltd.
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