Right Angle Prisms are the most commonly used prisms to turn or deflect a light beam through a 90-degree or 180-degree angle. They are widely applied instead of mirrors, which is easier to deform and more difficult to mount under external mechanical stress. They are made of optical glass of good quality with plano surfaces which are precisely made.

These prisms are made with high precision. Their materials have been carefully selected. They are widely used in laser applications. There are two types of these prisms, glass precision right angle prisms and fused silica right angle prisms. We will introduce them separately to you. We can assure you that the surface finish and angular accuracy are tightly maintained. Our engineers are ready to help you with your special request.

Wedge prisms are made of optical glass, which are used to deflect the line beam in optical systems. They are made in different sizes and wedge angles according to the customer’s specification. Alternative materials are also available such as fused silica which is more stable than glass with a higher coefficient of heat expansion and hardness.

The penta-prism is a constant deviation prism. It means that the same exact 90-degree deflection of light beam is kept regardless of the angle between these light beams and the optical axis. They are often used in range finder, surveying and alignment. Various sizes and precision of the penta-prism can be made according to customer’s specifications.

The main application of dove-prism is as image rotators in a variety of opto-mechanical systems. As the prism rotates, the image passing through will rotate at twice angular rate of the prism. It is very important that the incident beam is collimated. In addition, the large reflecting face must be kept very clean and the prism should not rest on this face. We supply other dove-prisms, if you have some special request, please contact an Application Engineer for further details.

The main application for rhomboid-prism is controlling and redirecting the optical path without affecting the image orientation. They can be used to displace an optical center line for light beam folding and stereoscopic systems of different sizes.

The Amici roof prism with high quality roof surfaces deviates or deflects the image through an angle of 90 degrees. This kind of roof prism is often applied in cases demanding both, right-angle deflection and image erection, as in some instrument viewfinders.
Amici Roof Prisms, with roof angle tightly controlled for accurate applications, are available. There also are special prisms of different sizes available on request.

Corner cube retro-reflector is a conical prism within where there are three internal reflecting surfaces at high precision right angles to one another. They are made to reflect back the light beam entering the prism along the original path, regardless what the orientation of the incident light may be. Therefore, it can be used for precision alignment at place where is difficult to reach, and the most popular function is used as a target in distance measuring.