Assembly for combustion chamber monitoring camera

Details Assembly for combustion chamber monitoring camera Assembly for combustion chamber monitoring camera

1993-02-18

1997-01-07

Mancuso, Joseph

Television

Special applications

Hazardous or inaccessible

348207, 348374, 348 76, H04N 718, H04N 5225

Patent

active

055922171

ABSTRACT:
An assembly for a combustion chamber monitoring camera comprises an image-forming optical system (20) whose object space (26) is a combustion chamber and whose image plane (5) is coincident with the photosensitive element of the camera, and whose focal point (24) on the object space side is situated outside the optical system (20), and a structure (22) enclosing the optical system (20). on the object space side of the optical system (20), a solid baffle plate (38) is placed having a hole (1) made cocentrical with the center axis of the optical system (20) and situated at the focal point (24) of the entire optical system on the object space side, or in the vicinity thereof, and the structure (22, 40) encloses the optical system (20) in such a manner that purging air can be fed via the hole (1) along a channel (32, 34) positioned between the optical system (20) and the enclosing structure (22, 40) thereof in the combustion chamber.

REFERENCES:
patent: 3021385 (1962-02-01), Summerhayes
patent: 3021386 (1962-02-01), Clark
patent: 3114799 (1963-12-01), Waters et al.
patent: 3588067 (1971-06-01), Shimotsuma
patent: 3609236 (1971-09-01), Heilman
patent: 4432286 (1984-02-01), Witte
patent: 4969035 (1990-11-01), Dawson
patent: 5068720 (1991-11-01), Herlitz et al.

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