Prisms

Prisms

Prism



Details


Features
Prisms maybe used in an optical system so that the exit beam may be reflected from the entrance direction.The images produced by prisms can be made inverted or rotated. 

Specifications

90 Degree Bending Prisms

90 Degree right angle bending prisms utilize the inherent total internal reflection (TIR) at the hypotenuse to invert the image and achieve a 90° change in direction. Antireflection coatings are applied to the two legs of a standard right angle prism (RAP) to maximize the overall throughput and reduce back-reflections off the interfaces to near zero. Because the internal reflection is independent of wavelength, these prisms can also be used as high energy 90° reflectors for broadband applications where metal mirrors are too absorbing and dielectric mirrors do not reflect a wide enough bandwidth. The Applications include UV beam routing, beam pick off, and variable delay lines as well as broadband, high energy 90° reflectors. High energy AR and BBAR coatings are applied to Legs. Skight Optics also offer other dimensions and wavelengths in prototype and production quantities. 
 

 

Specifications

Substrate Material

fused silica or BK7 glass

Surface Figure

BK7: λ/4 at 633nm Fused silica: λ/10 at 633nm

Dimensional Tolerance

+ 0.00mm, - 0.25mm

Angular Deviation

± 3 minutes

Chamfer

0.35mm at 45° typical

Coating Technology

Electron beam multilayer dielectric

Antireflection Coating

Single wavelength AR-R 0.25% Broadband AR- Ravg ≤0.50%

Surface Quality

BK7: 20-10 Laser Quality Fused Silica:: 10-5 Laser Quality

Adhesion and Durability

Per MIL-C-675C. Insoluble in lab solvents

Clear Aperture

Exceeds central 85% of dimension

Damage Threshold

10J/cm2, 20ns, 20Hz; 1MW/cm2, CW @ 1064nm


Note: Dimension and specification are available upon requests.  

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