Dispersion Prisms

Ray Deviation of 60° If Coated
Ideal as a Dispersion prism if Uncoated
Right Handed Image

Diameter	3mm-300mm±0.1mm
Dimensional Tolerance (mm)	±0.13
Substrate	K9, BK7, FS, UVFS, CaF₂, ZnSe
Angle Tolerance (arcmin)	±10
Ray Deviation (°)	60
Irregularity (fringes) @ 632.8nm	1
Bevel	Protective bevel as needed
Surface Quality	80/60  60/40 40/20 20/10 10/5
Image Orientation	Right-Handed
Power (fringes) @ 632.8nm	3

Right-angle prisms are usually used to deflect the light path or tilt the image formed by the optical system by 90°. Depending on the orientation of the prism, the imaging can be left and right, but upside down and left and right are different. Move and other applications.

When the right-angle prism is used, it is usually coated with some optical film. When the right-angle prism is used, it is usually coated with some optical film. With typical angles of 45° and 90°, the right-angle prism is easier to install, and has better stability and strength against mechanical stress than ordinary mirrors. They are the best choice for optical parts for various devices and instruments.

Example with BK7 material：These N-BK7 Right angle prism are available uncoated or with one of five antireflection coatings (-A, -AB, -B, -C, or -D), which reduces the amount of light reflected from each surface of the lens (see the Selection Guide table below for coating option). Since approximately 4% of the incident light is reflected at each surface of an uncoated substrate, the application of an AR coating improves transmission, which is important in low-light applications, and prevents the undesirable effects (e.g., ghost images) associated with multiple reflections. Having optics that are AR coated on both surfaces is particularly desirable for applications utilizing multiple optical elements. Please see the Graphs tab for additional coating information.

N-BK7 Right angle prisms Selection Guide
Coating name wavelength band
Uncoated Uncoated
A Coating 350nm-700nm
AB Coating 400nm-1100nm
B Coating 650nm-1050nm
C Coating 1050-1700nm
D Coating 1650nm-3000nm

Hengpu optics business unit has a wide breadth of manufacturing capabilities that allow us to offer a variety of custom Right angle prisms for both OEM sales and low quantity one-off orders. Right angle prisms with customer-defined sizes, focal lengths, substrate materials, cement materials, and coatings are all available as customs. In addition, we can offer optics that exceed the specifications of our stock catalog offerings. To receive more information or inquire about a custom order, please contact Tech Support : jessie@hp-lens.com