Folded optical large format photomicrographic camera system

Details Folded optical large format photomicrographic camera system Folded optical large format photomicrographic camera system

1983-04-01

1985-02-12

Mathews, A. A.

Photocopying

Contact printing

Light boxes

355 66, 355 71, G03B 1748

Patent

active

044987498

ABSTRACT:
A photomicrographic camera system is provided in which a mirror (26) is utilized to deflect the light beam emanating from the eyepiece (20) of a properly illuminated, compound optical microscope (10) horizontally outward to another mirror (30) which then deflects the beam vertically downward to a film holder (36) containing a sensitized photographic film or paper material. An appropriate housing (24, 28, 32) confines the optical path and protects the film from stray light, while at the same time providing structural support for the mirrors (26, 60, 30) and auxiliary photographic components, such as baffles (57), shutter (48), filters (46), polarizers (52) and analyzers, light meter (69), etc. The film or paper holder (36) lies flat, and is supported by the same base that is used to support the microscope. Because the projection distance is quite long for such a compact device, very large format images (e.g. 20".times.24") or larger can be achieved easily with a system sitting on top a standard desk in a room of conventional 8 foot ceiling height. Provisions are made by means of the appropriate eyepiece spacer (18) or contoured positive lens (72) (for short systems) to insure that optimum resolution is achieved in the finished photomicrograph. By reversing the optical path through the system, high resolution microphotographs, microdots, or images for microelectronic component fabrication can be obtained utilizing the same structure.

REFERENCES:
patent: 1161556 (1915-11-01), Watkins
patent: 2077809 (1937-04-01), Riepert
patent: 2351753 (1944-06-01), Flint et al.
patent: 2651969 (1953-09-01), Thor
patent: 3623807 (1971-11-01), Gabler et al.
patent: 3820882 (1974-06-01), Jakubowski

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