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  2. Infrared cut-off filter - Wikipedia

    en.wikipedia.org/wiki/Infrared_cut-off_filter

    Thus a blue filter makes the picture look blue. A blue filter marginally allows more light in the blue wavelength to pass resulting in a slight shift of the color temperature of the photo to a cooler color. Because of this, the term "IR filters" is commonly used to refer to filters that pass infrared light while completely blocking other ...

  3. Shades of purple - Wikipedia

    en.wikipedia.org/wiki/Shades_of_purple

    The color purple, as defined in the X11 color names in 1987, is brighter and bluer than the HTML/CSS web color purple shown above as purple (HTML/CSS color). This is one of the very few clashes between web and X11 colors . This color can be called X11 purple . Veronica prostrata, for which the color veronica is named.

  4. RF and microwave filter - Wikipedia

    en.wikipedia.org/wiki/RF_and_microwave_filter

    RF and microwave filter. Radio frequency (RF) and microwave filters represent a class of electronic filter, designed to operate on signals in the megahertz to gigahertz frequency ranges ( medium frequency to extremely high frequency ). It is component that is used in electronic systems to pass or reject specific frequencies and attenuate of ...

  5. Lee Filters - Wikipedia

    en.wikipedia.org/wiki/Lee_Filters

    Lee Filters is a manufacturer of colour filters and colour gels for the entertainment lighting, film and photography industries. [1] Their colour gels for stage lighting are the industry standard in Europe while competing with other brands such as Rosco. The company was founded in 1967 as part of the group that became Lee International.

  6. Beloved priest Abbe Pierre was the conscience of France ... - AOL

    www.aol.com/news/beloved-priest-abbe-pierre...

    A legendary French priest and a life-long advocate of the homeless was accused of committing acts that would amount to “sexual assault or sexual harassment,” the international foundation he ...

  7. Wratten number - Wikipedia

    en.wikipedia.org/wiki/Wratten_number

    Wratten number. Wratten numbers are a labeling system for optical filters, usually for photographic use comprising a number sometimes followed by a letter. The number denotes the color of the filter and its spectral characteristics, and these numbers can be grouped into broad categories, but the numbering system is arbitrary within a group and ...

  8. The fight to define Harris is on. And for now, Republicans ...

    www.aol.com/news/fight-define-harris-now...

    Just days into her new role as the Democratic Party's likely presidential nominee, Kamala Harris is already facing a wave of Republican-backed attack ads questioning her personality, her ...

  9. Precious Orangutan Loves Looking at Her Reflection and It's ...

    www.aol.com/precious-orangutan-loves-looking-her...

    She couldn't get enough. "Amber the orangutan loves looking at her reflection," the video's caption reads. Commenters didn't blame Amber for wanting to take a good look at herself. "'Aren't you a ...