High magnification optical apparatus with rotatable reflective l

Details High magnification optical apparatus with rotatable reflective l High magnification optical apparatus with rotatable reflective l

1976-07-26

1978-07-11

Henry, Jon W.

350120, G02B 2138, G03B 2160

Patent

active

040998312

ABSTRACT:
The invention provides an optical device for use in microscopes and screen projectors comprising a screen formed with multiple lenticular surfaces mechanically traversed at a speed above persistence of vision in the light path between an object and an observation plane, the lenticular surfaces increasing the angle of light ray pencil egress from their angle of incidence to an extent rendering the use of eyepieces unnecessary.

REFERENCES:
patent: 1864946 (1932-06-01), Schrago
patent: 2132904 (1938-11-01), Martinez et al.
patent: 2348818 (1944-05-01), Jacobson
patent: 2588373 (1952-03-01), Erban
patent: 2780136 (1957-02-01), Erban
patent: 2846918 (1958-08-01), Miles
patent: 2891444 (1959-06-01), Ewald
patent: 2974565 (1961-03-01), Miller
patent: 3442569 (1969-05-01), Bonnet
patent: 3453035 (1969-07-01), Walther

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