Dissecting optical viewer and recorder

Details Dissecting optical viewer and recorder Dissecting optical viewer and recorder

1985-03-22

1987-06-09

Lee, John

350 9612, 350 9618, 350 9627, 350320, G02B 600

Patent

active

046716068

ABSTRACT:
An optical reader for magnifying and viewing stored optical images, such as microimages on a microfiche. Each of a plurality of stacked and internally reflecting sheets is provided at its input end with its own lens, the lens lying within the sheet. The other or output end of each sheet is skived at an angle of 45 degrees to project light, which passes along and within the sheet, orthogonally out of the plane of the sheet for viewing. The skived ends of the stacked sheets are staggered or spaced from each other. Input light, as for example light from a microimage, is projected onto the input ends of the stacked sheets. Each sheet receives its corresponding portion of the input image. The lens of each sheet magnifies that sheets light portion or share as the light passes along the sheet towards the skived output edge for viewing. Magnification is achieved in one direction by the (sheet contained) lenses, and in an orthogonal direction by the spacing between the staggered, skived output ends.

REFERENCES:
patent: 3718515 (1973-02-01), Goldstein
patent: 3728422 (1973-04-01), Sugaya
patent: 4523803 (1985-06-01), Arao et al.
patent: 4548464 (1985-10-01), Auracher et al.

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