Anamorphic expansion
Concave side can be used as a reflector coating substrate
F=-R/n-1
N: Refractive index
R: Radius curvature
Plano-concave cylindrical lenses provide uni-axial negative imaging for anamorphic beam expansion and a wide range of applications. These lenses ar manufactured from BK7 grade A optical glass and are supplied uncoated. Anti-reflection coating are available as listed earlier in this section. To order an anti-reflection coated lens simply append the wavelength in nanometers to the product number. These lenses may also be used as mirror blanks if a concave cylinrial surface mirror is required.
Parameter:
Material: BK7, fused silica, sapphire, znse.
Clear Aperture: >90%
Focal Length: 2mm-10000mm+/-0.3%
Size: 0.5-460mm+/-0.02mm
Center thickness: 0.8-200mm+/-0.01mm
Centration: 30''
Irregularity: Lambda/4
Surface Quality: 40/20
Radius tolerance+/-0.3%
Coating: Upon customer request
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