Cavity illuminating device

Details Cavity illuminating device Cavity illuminating device

1982-06-03

1984-01-10

Lechert, Jr., Stephen J.

Illumination

Revolving

362277, 362280, 362282, 362293, 362294, 362307, 362319, 362321, 362322, F21V 704

Patent

active

044255993

ABSTRACT:
An improved device for controlled illumination of a cavity such as in endoscopy or inspection of machinery within a housing; the device comprises a light source and a fiber optics for feeding light into the cavity, and a control means arranged between the light source and the entrance plane of the fiber optics for controlling the luminous density at the exit plane of the fiber optics; the control means is in the form of a diaphragm disc arranged between the light source and the entrance plane of the fiber optics and is capable of linear or rotational displacement or motion; the disc has an opening having a width that varies cross-wise to the direction of displacement or motion of the disc-shaped diaphragm so as to provide a variable aperture; the luminous density at the exit plane will, in general, be determined by the light flux that impinges upon the entry plane, and that flux is controlled by the variable aperture.

REFERENCES:
patent: 4233650 (1980-11-01), Hagner et al.
patent: 4366529 (1982-12-01), Takahashi et al.

Affiliated with

Also associated with

Rating

Cavity illuminating device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Cavity illuminating device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cavity illuminating device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-455564