Cooled field optical system for infrared telescopes

Details Cooled field optical system for infrared telescopes Cooled field optical system for infrared telescopes

1983-04-13

1985-06-04

Arnold, Bruce Y.

350505, G02B 2302

Patent

active

045210683

ABSTRACT:
A cooled field optical system which serves for imaging the exit pupil of an infrared telescope with primary mirror having a central hole (Cassegrain system) onto a cooled annular diaphragm (9) which defines the field of view of the detector (14) used. It contains a field mirror (6) which is arranged behind the field diaphragm (5) of the telescope and whose focal length and distance from the field diaphragm are so selected that the image of the exit pupil is produced in the direct vicinity of the rear side of the field diaphragm (5) with a central vignetting which is greater than or equal to the aperture (15) of the field diaphragm (5). For deflection out of the coaxial ray path there is used an annular mirror (8) which is inclined to the optical axis and is arranged directly behind the field diaphragm (5). It has an elliptical hole the projected size of which is approximately the same as the size of the free passage (15) in the field diaphragm (5).

REFERENCES:
Smith, W. J., Modern Optical Engineering, McGraw-Hill, p. 211.

Affiliated with

Also associated with

Rating

Cooled field optical system for infrared telescopes does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Cooled field optical system for infrared telescopes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cooled field optical system for infrared telescopes will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-825778