Apparatus and method for increasing resolution and expanding the

Details Apparatus and method for increasing resolution and expanding the Apparatus and method for increasing resolution and expanding the

1994-07-13

1996-03-05

Epps, Georgia Y.

Optical: systems and elements

Single channel simultaneously to or from plural channels

By partial reflection at beam splitting or combining surface

359630, 359634, 359636, 359641, G02B 2714, G02B 2730

Patent

active

054972701

ABSTRACT:
An apparatus and method for increasing resolution and expanding the displayed field of view. The imagery is collimated and split into two paths by a partially reflective mirror set at an oblique angle to the image source. Either path may be blocked by a combination of polarizers and at least one controllable polarization shifting cell(s) (.pi.-cells). This mechanism allows one image source to supply, in alternating sequence, separate imagery to two separate but contiguous portions of a wide angle display. The two collimated image paths are merged about the viewing axis by a one way mirror before being recollimated at the device exit pupil.

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