Biocular display system using binary optics

Details Biocular display system using binary optics Biocular display system using binary optics

1993-08-23

1998-06-09

Sikes, William L.

Optical: systems and elements

Diffraction

From grating

359565, 359 13, G02B 518, G02B 532, G02B 308

Patent

active

057644144

ABSTRACT:
A biocular display system (19) for generating a virtual image (30) of a visible display (20). A diffractive binary optical element (22) is used to create the virtual image (30). The binary optical element (22) contains magnifying power to increase the size of the virtual image (30). Also, the binary optical element (22) contains prismatic power to displace the virtual image (30) away from the display (20). Multiple displays (40), (42) may be viewed by employing a binary optical element (34) having multiple diffractive orders.

REFERENCES:
patent: 3737212 (1973-06-01), Antonson et al.
patent: 4261635 (1981-04-01), Freeman
patent: 4895790 (1990-01-01), Swanson et al.
C.J. Swanson, W.B. Veldkamp, INFRARED APPLICATIONS OF DIFFRACTIVE OPTICAL ELEMENTS, SPIE Proceedings, vol. 885, paper No. 22, 1988.

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