Hand held microfilm reader

Details Hand held microfilm reader Hand held microfilm reader

1978-12-11

1981-02-17

Peshock, Robert

Card, picture, or sign exhibiting

Photographic transparency viewer, e.g., x-ray viewer

Portable slide viewer

40362, 40495, 40363, 248349, 362368, 339 44R, 353 87, 353121, 29 2513, G02B 2702, A47B 9100, F21S 106, G03B 2100

Patent

active

042506441

ABSTRACT:
A hand held microfilm reader wherein the film is maintained within the reader housing and the controls for positioning the film are easily manipulated by one hand. An optical system provides an intense automatically focused image projected onto a screen for viewing by the user. The light source is a conventional lens end bulb that has been rendered uniformly directional by its having been mounted in pre-aligned relationship with respect to a clip which is configured to be precisely registered with remaining portions of the optical system.

REFERENCES:
patent: 2892274 (1959-06-01), Afton
patent: 3027481 (1962-03-01), Baber et al.
patent: 3116480 (1963-12-01), Fernquist
patent: 3188512 (1965-06-01), Moore
patent: 3319517 (1967-05-01), Rondas et al.
patent: 3539263 (1970-11-01), Waters
patent: 3588240 (1971-06-01), Asano
patent: 3756710 (1973-09-01), Taylor
patent: 4059351 (1977-11-01), Wisotsky
patent: 4063365 (1977-12-01), Hopkins et al.

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