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- Refractive Aspherical Diffractive Elements And Hybrids
Refractive Aspherical Diffractive Elements And Hybrids
OVERVIEW
Aspheric, diffractive, and hybrid refractive diffractive optical elements can be realized affordably with Lexitek’s Near-Index-Match™ (NIM™) optics. These optics can have aspheric or diffractive surfaces at the interface of two materials. The Near-Index-Match™ greatly reduces the cost to master or directly machine the boundary surface and has much looser tolerances compared with aspheric or diffractive surfaces interfaced with air. Near-Index-Match™ optics add a powerful new dimension to optical designers, adding aspheric surfaces and/or diffractive surfaces for aberration correction, achromatization and athermalization. NIM™ optics can be made with glass or plastic substrates and typically have an optical polymer on one or both exterior surfaces. Lexitek uses proprietary fabrication techniques to produce inexpensive, high-quality optics with rapid turn around.
SPECIFICATION
- Diameter: 3-100 mm
- Material: Not Specified
- Effective Focal Length: 3-100 mm
- Numerical Aperture (NA): 1
- Wavelength Range: 300 - 1600 nm
Applications
Achromatization
Athermalization
Beam shaping
Aberration compensation
Null test plates for optical testing
Collimation
Laser diode circularization
KEY FEATURES
Continuous relief diffractive surfaces
Diffractive layers are buried beneath acontinuous exterior
Aspheric OPDs of 10 - 100 μm

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