Beam splitters for endoscopes comprising a dual observation syst

Details Beam splitters for endoscopes comprising a dual observation syst Beam splitters for endoscopes comprising a dual observation syst

1979-07-05

1981-08-11

Henry, Jon W.

Surgery

Truss

Pad

128 4, G02B 2714

Patent

active

042831156

ABSTRACT:
This invention relates to beam splitters for use with endoscopes of the kind comprising a dual observation system whereby the image may optionally be adjusted for different proportions of the light intensity for the observer and the joint observer or a film or television camera by means of the optical system of the endoscope.
According to the invention the beam splitter comprises two thin glass plates having a partial specular finish or partial reflection, at least one of said plates being shiftable to bring the partial specular finish in confrontation to an angled position in the beam path of the endoscope.

REFERENCES:
patent: 2565514 (1951-08-01), Pajes
patent: 3307897 (1967-03-01), Lohmann
patent: 3552824 (1971-01-01), Kiss
patent: 3994557 (1976-11-01), Hopkins
Zielinski, Benjamin, et al., "New Inventions", The Lancet, Apr., 1963, pp. 924-925.
Metavac Inc., Advertisement, "Gradient Neutral Density Filters", Jul., 1974.

Affiliated with

Also associated with

Rating

Beam splitters for endoscopes comprising a dual observation syst does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Beam splitters for endoscopes comprising a dual observation syst, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Beam splitters for endoscopes comprising a dual observation syst will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1023602