Corner Cube Prism


Products Description:custom as your require


Corner Cube Prism is also called Retroreflector or Trihedral Prism. It has three mutually perpendicular surfaces and a hypotenuse face. Light entering through the hypotenuse is reflected by each of the three surfaces in turn and will emerge through the hypotenuse face parallel to the entering beam regardless of the orientation of the incident beam. Due to the special performance, it is often used to the distance measurement, optical signal process and laser.

From prototype to production, Focus Technology designs, manufactures, and coats prism. Prism are one of the most basic optical components to produce. With complete in-house capabilities, Focus is able to offer Corner Cube Prism at the lowest pricing with fast delivery times.

Technical Parameters: 


BK7 Glass 

Dimension Tolerance (mm):

+/-0.2 (General), +0/-0.1 (High Precision)


180°±3 arc secs

Flatness (per 25mm@633nm):

λ/2(General), λ/10 (High Precision)

Clear Aperture:

>80% (small size),>90%(large size)

Surface Quality:

60/40 (General), 10/5 (High Precision)

Bevel (mm):


Coating on input and output sides:

Uncoated or AR /Metal/HR coating--Unpon Request

Note for corner cube :

(1). Apart from N-BK7, custom-made corner cube Prisms made of other optical materials are available.
(2). Corner Cube Prisms with lower deviation tolerance, for instance 1’, 30”, or 10″,  are available.
(3). Corner Cube Prisms with better surface Quality (better than 40/20 or 20/10) are available.
(4). HR or Metal reflection coating(Al, Ag, Cu, etc.) on reflection surfaces is available.
(5). AR coating on input/output surface is available as request.
(6). Custom-made special Corner Cube Prism at any other size are available as request.