Optical Filters Products

  1. Fluorescence Filters 8/7/2014

    Iridian offers excitation, dichroic, and emission fluorescence spectroscopy filters for confocal microscopy, flow cytometry, and other biomedical applications. These dichroic (FLD) and emission (FLE) filters deliver more signals with less background noise, and are compatible with common excitation sources and fluorophores. They also feature high transmission and reflection levels, low ripple, steep edges, and deep blocking outside of the pass band.

  2. Raman Filters 7/22/2014

    In Raman spectroscopy applications, emitted light is very close in wavelength range to the excitation light. In order to attenuate a laser’s signal from reaching the detector while at the same time transmitting the weak emitted light signal, notch or edge pass Raman filters are required. Because of their high transmittance and extended deep blocking, Raman laser line filters are also required to ensure that only the desired wavelength is actually illuminating the sample being tested. This page provides an overview of Iridian Spectral Technologies' line of filters for Raman spectroscopy.

  3. Windows, Mirrors, and Color Filter Glass 6/29/2014

    Ross Optical offers a variety of precision and standard windows, sapphire windows, round, square, and elliptical mirrors, and long pass, band pass, neutral density, and heat absorbing filters. This page provides an overview of these offerings.

  4. Raman Filters 12/13/2013

    These Raman filters offer a low loss and flat transmittance rate, high environmental stability, steep pass-block transition, OD5 to OD6 blocking, and long-term shift-free spectral performance. Wide flexibility in filter size is available, making them ideal for compact optical setups.

  5. SWIR Bandpass Filters 12/13/2013

    Optics Balzers’ SWIR bandpass filters feature excellent environmental stability, high transmittance in the passband, a self-blocking design with a blocking range over the full detector response,  and long-term shift-free spectral performance.

  6. Sharp Cut and IR Filters: W Series 11/26/2013

    These sharp cut and IR filters have been developed to meet the requirements of the European standard. Standard dimensions include 50mm square (polished) and 165mm square (polished and unpolished). Custom sizes and thickness are available, and a wide range of coatings can be applied.

  7. Ultra-Thin Color Compensating Filters: C Series 8/13/2013

    The C series color compensating filters are ideally suited for CCD imaging applications involving digital and video cameras. It features an ultra-thin design, high transmission in the visible range, and excellent chemical durability. The filter is designed to enhance color distribution in the visible spectrum while eliminating UV and NIR transmission. 

  8. Color Filter Glass 7/30/2013

    HOYA’s color filter glass products are ideal for applications involving medical devices, CCDs, imaging, telecommunications, calibration, electronic instrumentation, night vision, CRT/LCD/FED displays, and machine vision.

  9. Micro-Patterned Filters 2/27/2013

    Develop new multispectral imaging applications with PIXELTEQ’s micro-patterned filters. Patented technology enables micro-patterning of dielectric, metal, & RGB color filter array coatings on a single substrate – creating simplified optical devices with superior light management. 

  10. Circular Variable Filter 10/12/2012

    CI Systems’ Circular Variable Filters (CVF’s) are interference narrow-pass filters of advanced design which are deposited on circular substrates, called segments. Film thickness, and therefore the wavelength of peak transmittance varies linearly and continuously with angular position on the segment. CI Systems CVF’s are ideally suited as monochromators in compact, non-dispersive spectrometers, providing medium-resolution spectral radiation measurements, or when information is desired at a number of specific wavelengths in the relevant spectral range.