Wide field high optical efficiency display device

Details Wide field high optical efficiency display device Wide field high optical efficiency display device

1987-02-03

1989-05-16

Corbin, John K.

350 37, G02B 2714, G02B 532

Patent

active

048304646

ABSTRACT:
A display device with wide field and high optical efficiency is provided including an optical assembly having a spherical holographic mirror used on the axis and a semitransparent mirror. A generator of light images emits a radiation which strikes first of all the convex phase of the spherical mirror, passes through it, and is then reflected by the semitransparent mirror in the direction of the spherical mirror, which reflects it and finally sends it towards the observer. This optical collimation and combination assembly is included in a transparent medium formed by a glass plate with parallel faces and forming a stigmatic optical system at infinity, required for the correct reception of the radiation coming from the outside landscape.

REFERENCES:
patent: 3940204 (1976-02-01), Withrington
patent: 4407564 (1983-10-01), Ellis
patent: 4563061 (1986-01-01), Ellis
patent: 4600271 (1986-07-01), Boyer et al.
"The Latirn Wide Field-of-View Raster Head-up Display", p. 5, Colonne de Droite Ligne 47-p. 6, Collonne de Gauche, Ligne 25; Figure 7.
"Wide Field of View Head-up Displays", Figures 7, 8b.

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