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Aspheric Lenses

Oct 2010
LightPath Technologies Inc.Request Info
LightPath Technologies Inc. has unveiled a family of four aspheric lenses designed for blue laser diodes operating at 405 or 488 nm. The compact lenses are designed as the primary optics for collimating blue lasers in a variety of applications, including biomedical instrumentation such as flow cytometers, microscopes and fluorescence spectroscopy equipment, and high-volume data storage applications. The diffraction-limited single-lens-design molded glass aspheric lenses are specified for the beam divergences, peak wavelength and window material of commercial blue diode lasers, enabling blue laser applications to achieve good beam quality and performance. The L-LAL12 and D-LaK6 glasses have been selected for their UV and blue transmission properties and for their ability to be molded using proprietary existing technology. The glasses are RoHS-compliant and are available as mounted lenses in the company’s MT lens holders.


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beam divergence
Increase in the diameter of an initially collimated beam, as measured in milliradians (mrad) at specified points; i.e., where irradiance is a given fraction (often 1/e2) of peak irradiance.
peak wavelength
The wavelength at which the radiant intensity of a source is maximum.
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