The right-prism has a basic 45-degree right triangle geometry and is one of the most commonly used prisms for redirecting light and rotating images. In this prism, a parallel set of light waves that join one of the smaller prisms at a perpendicular angle is reflected from the hypotenuse face and exits from the other side. Provided the prism is made from a material with a refractive index greater than the square root of 2 (approximately 1.414), the light can undergo absolute internal reflection at the glass/air boundary when within the prism itself.
Right Angle Prism
Product Catalogue
Part No. |
||||
Size(mm) | +/- 3 arc min. | +/- 1 arc min. | +/- 30 arc sec. | |
---|---|---|---|---|
A = B = C = 3.2 | PRS0100 | PRS0200 | PRS0300 | |
A = B = C = 5.0 | PRS0101 | PRS0201 | PRS0301 | |
A = B = C = 10.0 | PRS0102 | PRS0202 | PRS0302 | |
*A = B = C = 12.7 | PRS0103 | PRS0203 | PRS0303 | |
A = B = C = 15.0 | PRS0104 | PRS0204 | PRS0304 | |
A = B = C = 20.0 | PRS0105 | PRS0205 | PRS0305 | |
*A = B = C = 25.4 | PRS0106 | PRS0206 | PRS0306 | |
A = B = C = 30.0 | PRS0108 | PRS0207 | PRS0307 | |
A = B = C = 40.0 | PRS0108 | PRS0208 | PRS0308 | |
A = B = C = 50.8 | PRS0109 | PRS0209 | PRS0309 |
* Fused silica Standard products are available
Specifications
Material | BK7, Fused Silica |
---|---|
Diameter Tolerance | +0.0/-0.2mm |
Angle Tolerance | See the table |
Surface Quality | 60-40 scratch and dig |
Clear Aperture | >85% |
Flatness | λ/2@632.8nm |
Coating | Upon request |
Chamfer | Protective Bevel |
Product Knowledge
A right-angle prism is used as a mirror to deviate light through 90° and also as a retroreflector to deflect light through 180° by total internal reflection.
Core products: as small as 1mm size is available