Absorptive Neutral Density (ND) Filters
An absorptive neutral density filter (ND Filter) is an optical element that uniformly reduces the intensity of light by absorbing light of a specific wavelength. It does not significantly change the color of light (i.e., remains “neutral”) and is widely used in photography, laser systems, spectral analysis, and other applications.
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Bandpass
Notch filters are commonly called suppression filters, band-stop filters, etc.
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Color Glass All Kinds
Due to its selective absorption in visible wavelength range, color glass filter will exhibit various color depending the glass type.
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Infrared (IR) Longpass Filters
In infrared optical systems, filters play a critical role in precisely controlling the passage of light at specific wavelengths to optimize imaging quality or signal detection. An infrared Longpass filter is an optical element that allows the transmission of long-wave infrared light (usually light with a wavelength greater than a certain cutoff value, such as 5μm, 8μm, or 10μm) while blocking short-wave radiation. These filters are widely used in thermal imaging, gas detection, military reconnaissance, industrial monitoring and scientific research.
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IR Cut Filters
An infrared cut-off filter (IR Cut Filter) is an optical element that is mainly used to block infrared light (wavelength usually greater than 700nm) and allow visible light (about 400-700nm) to pass through. It is widely used in modern imaging systems, especially in digital cameras, smartphone cameras, security surveillance and other areas of critical importance.
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IR Cut Filters
Shortpass Filters, also known as Shortpass Edge Filters, are used to transmit wavelengths shorter than the cut-off wavelength of the filter.
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Optical Color Glass 810nm
The infrared band includes a wide range of wavelengths, from 780nm to 14um, which is divided into near infrared, mid infrared and far infrared.
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Optical IR Longpass Filters
A longpass infrared filter is an optical element that allows infrared light with wavelengths greater than a specific cut-off wavelength to pass through while blocking shorter wavelengths (such as visible or near-infrared light).
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UV Bandpass Filters
UV bandpass filters from Yutai Optics are optical elements for the ultraviolet wavelength range (typically 100-400nm) that allow only light in a specific ultraviolet wavelength range to pass through while blocking other wavelengths (such as visible and infrared light). These filters have important applications in UV spectroscopy, biomedicine, semiconductor inspection, UV imaging, ozone monitoring, and other areas.
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