Infrared objective lens assembly

Details Infrared objective lens assembly Infrared objective lens assembly

G - Physics

02

B

88/100

G02B 15/16 (2006.01)

Patent

CA 1247907

ABSTRACT INFRARED OBJECTIVE LENS ASSEMBLY A refractor-type infrared telescope (20) incorporates an eyepiece system (24) aligned on a common axis (21) with an objective lens assembly (22,23) formed by a zoom system (22) and a collecting system (23). Collecting system (23) is formed by a single fixed lens element D having an aspheric refractive surface (7). Zoom system (22) is formed by a first movable component (lens element E) mounted on carriage (26), a second movable component (lens elements F,G) mounted on carriage (25) and a fixed third component (lens element H). Lens elements (E,F, and H) incorporate respective refractive surface (9,11 and 15) which are aspheric. The telescope (20) has a variable magnification factor within the range X1 to X9, has an internal f-number at the internal real image (17) of less than 2.0 and is compact.

451990

Affiliated with

Also associated with

Rating

Infrared objective lens assembly does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1263664