Display instrument using optical collimation

Details Display instrument using optical collimation Display instrument using optical collimation

Filed on

1978-04-28

Date issued

1980-09-30

Examiner

Corbin, John K.

Patent Class

Facsimile and static presentation processing

SubClass

Facsimile

SubSubClass

Specific signal processing circuitry

Other Related Categories

358295, G02B 2714

Type

Patent

Status

active

Patent number

042252156

Description

ABSTRACT:
A display instrument using optical collimation for projecting data into the line of sight of an observer, comprising an optical lens which projects images of luminous objects focused at infinity onto a transparent combining glass. The projected images of the luminous objects corresponding to data are reflected by the glass into the observer's line of sight. A semi-transparent optical mirror is arranged parallel to the glass at a greater distance from the optical lens, to provide an enlargement in elevation of the original pupil as defined by the outline of the image of the lens through the glass.

REFERENCES:
patent: 3778548 (1973-12-01), Nistri
patent: 4111527 (1978-09-01), Cojan

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