Wedge Prism

Wedge Prisms

Features:
1° to 15° Beam Deviation at 632.8nm, Ideal for beam steering.

Applications:
Beam steering, Projection Systems, Imaging Systems, Laser Measurement Systems, etc.

Description:
Wedge prism is optical element with plane-inclined surfaces; usually the faces are inclined toward one another at very small angles. It diverts light toward its thicker portion. By selecting appropriate wedge it is easy to create precise beam deviation without affecting other beam parameters. If two wedges are used together with sloping surfaces in close proximity it is possible to produce a continuous variation of beam deviation by counter - rotating the wedges.

Wedge prisms can be used individually to deviate a laser beam a set angle, or two wedge prisms can be used together for beam steering applications. A single wedge prism's ability to deviate the angle of an incident beam is measured in Diopters with 1 diopter deviating the beam 1cm at a 1m working distance.

Specifications: 
Material: BK7 or UV Fused Silica
Design Wavelength: BK7: 632.8nm, n=1.515@632.8nm
                                    UVFS: 355nm, n=1.476@355nm
Dimension Tolerance: +0.0/-0.2mm
Thickness: 3mm on the thinnest edge
Wedge Angle Tolerance: <3 arc minutes
Flatness: <?/4@632.8nm
Surface Quality: 60/40 scratch and dig
Clear Aperture: >90%
Deviation Angle From 1deg to 10deg
Coating: Specified by customer