Longpass

Longpass filters transmit wavelengths longer than the specified cut-on wavelength while blocking shorter wavelengths. They are usually used in monochromatic applications to improve contrast, where like colors will lighten like colors. Most longpass filters are absorptive rather than dichroic (reflective), making them well suited for wide angle applications.
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Features

  • Peak Transmission > 90%
  • VIS/Near-IR wavelengths
  • Both surfaces provided with durable, high efficiency anti-reflection coatings in order to protect polished glass surfaces and increase light throughput
  • Useful for Machine Vision applications where multiple wavelengths need to be blocked and/or transmitted.
  • Useful for: outdoor (sunlit or moonlit) applications; longer-wavelength near-infrared and multi-wavelength fluorescence applications

Mount & size options

  • Threaded Mount, C/CS Mount, Slip Mount, Unmounted
  • Threaded Mount Sizes: M25.5-M105

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Vision Light Tech

Vision Light Tech supplies a broad range of solutions in light, lenses and filters for the industrial machine vision worldwide. VLT is renowned for their speciality in this niche market. The organisation distinguishes itself from others by a solution focussed approach. We also customize standard products to suit individual customer requirements.