Optimized design method for holographic optical element and appa

Details Optimized design method for holographic optical element and appa Optimized design method for holographic optical element and appa

1992-03-19

1994-11-01

Lerner, Martin

Optical: systems and elements

Holographic system or element

For synthetically generating a hologram

359 15, 359 16, 359 21, G02B 532, G03H 108

Patent

active

053611497

ABSTRACT:
An optimized design method of a holographic optical element by calculating a correction coefficient so that an evaluating amount of a reconstructed light reconstructed by the holographic optical element can be minimized, the correction coefficient determining an aspheric term included in a phase transfer function, the phase transfer function representing a shape of an interference fringe recorded on the holographic optical element. According to the method, the wavefront aberration is expressed via a linear function of the correction coefficient by positioning a main axis point on a characteristic evaluating surface onto which the reconstructed light is projected, so that a wavefront aberration of the reconstructed light can be minimized. Then, the correction coefficient is calculated based on the linear function so that the evaluating amount can minimized.

REFERENCES:
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patent: 4778262 (1988-10-01), Haines
patent: 4969700 (1990-11-01), Haines
"Flat-filed linearized scans with reflection dichromated gelatin holographic gratings", by Yukihiro Ishii and Kazumi Murata, 15 Jun. 1984 /vol. 23, No. 12 pp. 1999-2006, Applied Optics.
"Reflection Holographic Lens Having Nonspherical Wavefront Designed By A microcomputer", by Yukihiro Ishii and Kazumi Murata, Optics Communications vol. 47, No. 5, 1 Oct. 1983, pp. 303-308.
"Optimal holographic Fourier-transform lens", by J. Kedmi and A. A. Friesem, Applied Optics/vol. 23, pp. 4015 to 4019.
"Analytic design of optimum holographic elements", by J. N. Cederquist and J. R. Fienup, vol. 4, No. 4/Apr. 1987, J. Opt. Soc. Am. A, pp. 699 to 705.

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