prism glasses, penta prism, large prism

Penta Prisms

A penta prism is a five-sided reflecting prism used to deviate a beam of light by a constant 90°, even if the entry beam is not at 90° to the prism. The beam reflects inside the prism twice, allowing the transmission of an image through a right angle without inverting it (that is, without changing the image's handedness) as an ordinary right-angle prism or mirror would.

The reflections inside the prism are not caused by total internal reflection, since the beams are incident at an angle less than the critical angle (the minimum angle for total internal reflection). Instead, the two faces are coated to provide mirror surfaces. The two opposite transmitting faces are often coated with an antireflection coating to reduce spurious reflections. The fifth face of the prism is not used optically but truncates what would otherwise be an awkward angle joining the two mirrored faces.

Parameter

Materialial 

  CaF2, BaF2, MgF2, LiF, optical glass, ZnSe, ZnS, Si, Ge, Quarz etc. 

Qinhuangdao Intrinsic Crystal Technology Co., Ltd has the advanced processing equipment and complete production system,which gurantees that we can effectively control every aspect of the product process, as well as product quality. It also has the advanatge to reducing losses and costs.

The High quality products are guarantee by  Advanced testing equipment and methods

Packaging

Pay attention to every details of the package. According to the products, we choose the best suitable packaging.

Shipping

Many  shipping  methods to meet customer's  demand.