• The polished colored glass filters can be used in place of thin-film coated filters as an economic alternative. Hangzhou Shalom EO offers the optical filters optics made from colored glasses, which includes band-pass, long-pass and short-pass filters, neutral density filters ect.,  Chinese-made colored glass materials equal to Shott or Hoya are used.
  • ND filters, also known as Neutral Density Filters, are often used in imaging or laser applications where excessive light can be damaging to camera sensors or other optical components. ND Filters are also ideal for preventing excessive light from causing inaccurate results in photometer applications. ND Filters are designed to reduce transmission evenly across a portion of the spectrum by absorbing or reflecting the portion of the light that is not being transmitted. Hangzhou Shalom EO offers a wide variety of Neutral density Filters for Ultraviolet (UV), Visible, or Infrared (IR) applications. The continuously variable ND filters in rectangular or round is available.   
  • Hangzhou Shalom EO supplies the IR optical filters and mid-ir band-pass filters. We provide you with the highest quality IR Bandpass Filter, IR Edge Filter [Shortpass Filter (SP), Longpass Filter (LP)]etc. which can be used in IR Thermal Imaging & Thermal Sensing, IR Thermography, IR light Emitters & Detectors etc, at competitive prices. These filters are made using IR substrates such as silicon, sapphire, IR Quartz and germanium etc. with thin films of material that have differing refractive indices and thickness. The filters are used to isolate, for example, emission lines from a source or fluorescent from background. Laser lines can be isolated to maximize the signal relative to noise ratio.
  • The bandpass optical filters transmit a well-defined wavelength while blocking the unwanted wavelength of light. Hangzhou Shalom EO provides the interference filters used in the biochemical applications, the optical filters used in the enzymatic analyzer and Gel imaginer is available.
  •  Laser Line Filters are ideal for transmitting laser light while suppressing ambient light, Hangzhou Shalom EO provides the filters whose central wavelengths at common laser lines. Our filters have excellent out-of-band blocking, less than 0.01% or 10-4. Besides the listed filters, we also provide the customized laser line filters for your request.
  • Dichroic filters are designed to stand up to the heat and Ultra Violet (UV) energy in high energy light sources. The filters are dielectrical interference filters which transmit certain regions of the visible spectrum and reflect other regions, Dichroic color filters have the advantage of reflecting unwanted light instead of absorbing the energy, which allows dichroic filters to be used with much higher intensity light sources. Dichroic color filters are used in a variety of applications including architectural, entertainment, science, and engineering.

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