Sigma optical machine Gran Thompson prism
Product Introduction
The Gran Thompson prism is placed inside a metal frame and fixed to the bracket without directly applying stress to the components.
The Granton prism of calcite has two allowable angles of incidence to choose from.
The surface is coated with a single-layer anti reflection film, which has good transmittance.

information
▶ We can provide GLPB/GLP laser prisms and WPPB/WPPC prisms that can be used for high-power lasers.
▶ Undertake customized products without optical film or coated with anti reflection film corresponding to specified wavelengths. Please consult for details.
Attention
▶ Changing the incident angle will result in a change in the extinction ratio of the transmitted light.
▶ Calcite is a natural crystal, and there may be quality or individual differences between products.
▶ The portion of the beam that does not pass through is completely absorbed or scattered on the side of the Grantham prism. In high-precision systems, it may be necessary to use pinholes or other obstructions to block the scattered light beams inside the components.
General Metrics
| material |
α-BBO, 方解石 |
| Optical axis offset |
<3′ |
| Wavefront accuracy |
λ/4 |
| coating |
MgF2Single layer anti reflection film |
| Laser damage threshold |
0.3J/cm2(Pulse width 10ns) |
| Surface quality |
20-10 |
| Outer frame material |
Aluminum alloy surface treatment: black oxidation |
Outline drawing
Function Description Diagram