3G Optics

Equilateral Prism

Material: Bk7, Fused Silica,SF18, SFL11 and etc.

 

Specifications

Equilateral prisms have three equal 60 degree angles and are also referred to as dispersing prisms. Equilateral prisms are used for wavelength separating applications.

Material Bk7, fine annealed (other material upon request),SF18 (722/293), SFL11 (785/258)
Dimensions Tolerance 0/ -0.15 mm
Surface Flatness lambda/4 at 632.8 nm
Surface Quality 60-40 scratch and dig
Clear Aperture 90% of the dimension
Angle Tolerance 0 degrees plus/minus 30'' or 0 degrees plus/minus 5'
Chamfers 0.1- 0.25 mm x 45 degree
Coating MgF2 coating or non coating

 

Note: Special material and size are available upon request.