Optical Filters News

  1. More Signal, Less Background: Improving Signal To Noise Ratio 11/28/2022

    The path to improving signal-to-noise ratio - the ratio of the power of signal (desired input) to the power of background noise (undesired input) - is to reduce the power of the noise – less background.

  2. How To Enhance Optical Blocking Using Multiple Filters 8/10/2022

    Any background light that reaches the detector of an optical system can greatly compromise signal-to-noise ratio. Using more than one blocking filter is a solution that requires careful consideration.

  3. Chroma Technology Honored By Vision Systems Design 2022 Innovators Awards Program 6/6/2022

    Chroma Technology announced today that its ContrastMax SWIR optical filters for machine vision and remote sensing were recognized among the best in machine vision today by the judges of the Vision Systems Design 2022 Innovators Awards program at the Automate Show in Detroit.

  4. Dragonfly Telephoto Array Discovers Ultra Diffuse Galaxies, Challenges Understanding of Dark Matter 4/11/2022

    Large-scale telescope projects such as James Webb Space Telescope that have enraptured even the most peripheral space enthusiasts often take decades of dedication and billions of public and private funds to help realize their goals. That bothers astronomer Dr. Bob Abraham, who teamed up with fellow astronomer Dr. Pieter van Dokkum to embark on a more intimate project with near-immediate results, one that unexpectedly changed the way astronomers think about dark matter.

  5. Bright Ideas — Defense Contractors Tasked With Taking Down Hypersonic Missiles, Record-Breaking Quantum Computer Tops 256 Qubits 11/24/2021

    Bright Ideas presents the most captivating news and innovations in photonics. This week, the Military Defense Agency picked three contractors to design a Glide Phase Interceptor prototype, a startup claimed its quantum computer has the most qubits (and the best platform), and an electro-topics grad student developed an optical filter that allows sensors and cameras to operate seamlessly in low and bright light situations. 

  6. Alluxa Develops Innovative 15-Band Optical Filters For ETSI Astronomy Project 7/2/2021

    The company’s unique multi-band optical filter design is integral to Texas A&M’s Exoplanet Transmission Spectroscopy Imager (ETSI) instrument.

  7. Application Of ND Filters In LCD And CRT Panels For Aviation 3/10/2021

    This article discusses how to improve the visibility of displays in the cockpit during daylight with neutral density (ND) filters.

  8. How NDAR Coating Solves Transmittance And Reflectivity Challenges 3/10/2021

    HOYA provides a filtration solution for the issues standard coated and colored glass neutral density (ND) filters face, such as uneven transmittance and reflected light.

  9. Alluxa's Optical Filters Landed On Mars 3/9/2021

    Alluxa’s optical filters, specially designed for the advanced fluorescence spectrometer on the Mars Perseverance Rover, landed safely on Mars, on February 18, 2021.

  10. Iridian Introduces Standard PCR Filters 12/15/2020

    In an effort to support the rapidly growing use of polymerase chain reaction (PCR) in rapid diagnosis of diseases such as COVID-19, Iridian Spectral Technologies has introduced a line of ultra performance optical filters specifically designed for Real-Time PCR applications. The ultra PCR fluorescence filter sets provide “more signal, with less background” improving the signal to noise ratio for these instruments.