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Rising Electro-Optics Ltd

    
Aspherical Lens

Aspherical Lens


[001] [China]
Posted Date: March 13, 2009
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Description
An aspheric lens or asphere is a lens whose surfaces have a profile that is neither a portion of a sphere nor of a circular cylinder. In photography, a lens assembly that includes an aspheric element is often called an aspherical lens.

With a spherical lens, rays travelling from the lens periphery create the image before the ideal focal point and give a blurred image centre. With an aspherical lens, even the rays travelling from the lens periphery converge at the ideal focal point, thus producing a sharp image

One of the more common applications for aspheres is found in condensing systems. Molded aspheres efficiently relay the energy from the light source into the imaging components of the product. Designers of slide projectors and movie projectors often employ aspheres in their condensing systems to maximize the brightness and quality of their projected images.

Rising EO molds aspheres out of high-quality crown glass and fire-polishes the surfaces. These lens elements have excellent homogeneity and surface quality.
 
Other Information
Location:  China 
Minimum Order:   
Price for Minimum Order:   
  (This price is only for minimum order, for large quantities, please contact)
Sample Available:  NO 
Related Categories: Optical Instrument & Parts
Related Products: aspherical lens, bk7 aspherical lens »
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