Projector slide apparatus

Details Projector slide apparatus Projector slide apparatus

1993-02-23

1994-04-12

Cuchlinski, Jr., William A.

Optics: image projectors

Composite projected image

353108, 351239, 351243, 351233, A61B 302

Patent

active

053029828

ABSTRACT:
A projector slide apparatus for use in a duplex optical chart projector of the type used by optometrists and eye care professionals. The apparatus is insertable into and capable of variable movement within the optical chart projector towards combined simultaneous projection of indicia from an optical acuity chart slide onto a display screen; at different acuity diffusion levels for further testing, evaluating and measuring of the capabilities and sensitivities of the patient's eye.

REFERENCES:
patent: 1949067 (1934-02-01), Wheelock et al.
patent: 3294472 (1966-12-01), Haugen
patent: 3294473 (1966-12-01), Haugen
patent: 3341275 (1967-09-01), Haugen
patent: 3415594 (1968-12-01), Aulhorn
patent: 3655276 (1972-04-01), Wilkinson
patent: 3945721 (1976-03-01), Corcoran
patent: 3947098 (1976-03-01), Paget
patent: 5216458 (1993-06-01), Andera et al.

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