Triangular Prisms Total internal reflection TIR prism with AR coating
Triangular Prisms Total internal reflection TIR prism with AR coating
Triangular Prisms(Tri Prism) are widly used in optical system, which can reflect, deviate and rotate beams of light as well as dispersing their wavelengths.
The main function of TIR prism is to divide the illumination path from imaging path,that also called as incidence light and outgoing light of the DMD components in DLP system. Using TIR prism means more simple optical path design and better image quality.
Feature of TIR prism
1,The imaging path can assure high transmittance ratio between -9.5°~14.5°, for example at 0°,can assure T≥95%.
2,The bonded air gap can be controlled between 0.005-1mm according to customer requirement.And the tolerance for 0.005-0.01mm range can achieve ±0.003mm.
3,Fastness of the bonding:Does not peel off when under the 500N force from outgoing surface.
4,Black matt paint available on appointed surface or area. Advantage:cost under well control, stable quality level, assure the guaranteed service for customer.
| Material: | BK7, quartz, sapphire and various crystal ect. |
| Dimension: | Based on user requested |
| Tolerance: | +/-0.1mm |
| Surface quality: | Typically 60/40 |
| Coating: | Based on user request |
| * Total transmittance: | 420nm~700nm (more than) 96% |
| Air-gap: | 5um- 12um(based on user request) |
| Product Technology | A combination of two prisms, a TIR prism directs the light beam |
| to the DMD chip | |
| (for DLP projector); the light relfected from DMD passes through it to | |
| form the projection image. |
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6. We are obsessive about quality assurance.
Our in-house metrology laboratory is capable of measuring key properties and parameters of optical components such as transmission and reflection from 175nm to 20um, mechanical dimensions, surface accuracy, surface quality, flatness, parallelism, squareness, angle, centering, MTF, focal length and radius of curvature.
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