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What is a neutral density filter?
Jun. 12, 2026
![What is a neutral density filter?]( "What is a neutral density filter?")
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Ultraviolet bandpass filters used in UV-A and UV-B ultraviolet radiometers
May. 29, 2026
![Ultraviolet bandpass filters used in UV-A and UV-B ultraviolet radiometers]( "Ultraviolet bandpass filters used in UV-A and UV-B ultraviolet radiometers")
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Ruby Ball Lenses: Optical Properties, Applications, and Industrial Uses
May. 22, 2026
![Ruby Ball Lenses: Optical Properties, Applications, and Industrial Uses]( "Ruby Ball Lenses: Optical Properties, Applications, and Industrial Uses")
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H-K9L Half Ball Lenses: Optical Properties, Applications, and Engineering Guide
May. 22, 2026
![H-K9L Half Ball Lenses: Optical Properties, Applications, and Engineering Guide]( "H-K9L Half Ball Lenses: Optical Properties, Applications, and Engineering Guide")
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H-K9L Ball Lenses: Properties, Applications, and Optical Performance Guide
May. 22, 2026
![H-K9L Ball Lenses: Properties, Applications, and Optical Performance Guide]( "H-K9L Ball Lenses: Properties, Applications, and Optical Performance Guide")
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Achromatic Lenses: Working Principles, Types, Applications, and Selection Guide
May. 22, 2026
![Achromatic Lenses: Working Principles, Types, Applications, and Selection Guide]( "Achromatic Lenses: Working Principles, Types, Applications, and Selection Guide")
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Apr. 03, 2026
![UV Shortpass Filter]( "UV Shortpass Filter")
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Functions and applications of optical windows
Mar. 30, 2026
![Functions and applications of optical windows]( "Functions and applications of optical windows")
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The impact of IR cut off filters on image quality and their selection
Mar. 13, 2026
![The impact of IR cut off filters on image quality and their selection]( "The impact of IR cut off filters on image quality and their selection")
