Right-Angle Prisms

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Right-Angle prisms are commonly used to achieve a 90° or 180° light path bend.  Depending on prisms orientation, images will be inverted, but correct left-to-right.  If the prism is rotated 90°, images viewed through the prism will be erected, but reversed left-to-right.  This prism can also be used in combination for image/beam displacement applications.
 

90° deflection

180° deflection

90° deflection occurs at the face.  The hypotenuse image is erected and reversed. 180° deflection uses with hypotenuse as the entrance and exit face.  The main application is as a retro-reflector provided that the plane of incident beam includes the vertex.

 

Main Specifications

Material BK7 glass or UV Fused Silica
Dimension Tolerance +0.0, -0.2 mm
Clear Aperture >85%
Angle Tolerance see table
Flatness l/2 @632.8 nm
Surface Quality 60-40 scratch and dig
Bevel 0.2 mm to 0.5 mm x 45°
Coating Uncoated

 

Standard Products
Size (mm)

Material

3 min. deviation

1 min. deviation

30 sec. deviation

A=B=C=2.0

BK7

RAP-1101

RAP-1201

RAP-1301

A=B=C=3.2

BK7

RAP-1102

RAP-1202

RAP-1302

A=B=C=5.0

BK7

RAP-1103

RAP-1203

RAP-1303

A=B=C=10.0
BK7

RAP-1104

RAP-1204

RAP-1304

A=B=C=12.7
BK7

RAP-1105

RAP-1205

RAP-1305

A=B=C=15.0
BK7

RAP-1106

RAP-1206

RAP-1306

A=B=C=20.0
BK7

RAP-1107

RAP-1207

RAP-1307

A=B=C=25.4
BK7

RAP-1108

RAP-1208

RAP-1308

A=B=C=30.0
BK7

RAP-1109

RAP-1209

RAP-1309

A=B=C=12.7
UV Fused Silica

RAP-2105

RAP-2205

RAP-2305

A=B=C=25.4
UV Fused Silica

RAP-2108

RAP-2208

RAP-2308

Note: customized size and coating are available upon request.

Toll Free(U.S.) 888.309.5061 Fax 650.618.2057

   

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