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F-Theta Lenses

 

Pre-Engineered F-Theta Lenses: Don’t have a complete design? No problem!

Our Pre-Engineered lenses give our customers the option of choosing suitable designs from a variety of our existing lenses based on their applications. We also offer custom F-Theta lenses. Just tell us your specifications (beam size, scan field diameter, wavelength range, etc.) and our team of expert engineers will optimize our preliminary designs to meet your exact needs. This will help you cut the product development lead time and also reduce or eliminate design fees!

To learn more, please feel free to contact us at +1 732-321-6915 or info@shanghai-optics.com.

F-Theta lenses are commonly used in laser scanning systems that require a flat image plane and high resolution. By introducing a specific amount of barrel distortion in the lens, the image height of the F-Theta lens is proportional to the scanning angle. These diffraction limited lens systems can be engineered to produce the desired spot size and have a distortion of less than 0.25% with the entire field of view.

Optical Characteristics

  • Lens design: compact design with 3 to 4 elements
  • Transmittance: >90%
  • Distortion (Max.): <0.25%
  • Focal length: available from 63mm to 635mm
  • Custom optical coating: working wavelength range from UV to visible to infrared
  • Lens performance: customized to fit specific application needs
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