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Littrow Prism
Littrow Prism
Littrow Prism
Littrow prisms are typically 30°/60°/90° prisms,with a reflective film coating on the beveled surface. Coated littrow dipersion prisms are used to deviate the line of sight by 60°. 
Uncoated littrow dipersion prisms are used to disperse light into its component spectrum.angle. 
 

     Specifications
 Material BK7, UV Fused Silica,Sapphire, ZnSe,Caf2,Si,Ge,etc.
 Size 0.5mm-300mm
 Size tolerance +/-0.1mm or customer request
 Clear Aperture >90%
 S/D 60-40 40-20 20/10 10/5
 Flatness  1/4lambda at 632.80nm
 Chamfer 0.25mmx45°
 Angle tolerance <2’’,<3’’,<30’’,<1’,>3’
 Coating AR, HR, Aluminum, Silver or customer request. 

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