Product Descriptions:
| Characteristics: | UV Filter |
| Central Wavelength (CWL): | 330-495nm |
| Full Width at Half Maximum(FWHM): | specified |
| Peak Transmittance(%) : | >=90% |
| Optical Density (OD): | OD2-OD3 |
| Color: | Purple |
| Shape: | Round |
| Dimension(mm): | Diameter 32mm or specified* |
| Thickness(mm): | 1.0mm or specified** |
| Substrate material: | Quartz Glass(Fused Silica) or other specified. |
| Remark: Spectral range:300-1100nm *Common for 86x86mm, 80x80mm, other customized, max. 300x300mm **Thickness available: 0.21、0.3、0.55、0.7、1.0、1.1、1.5、1.8、2.0、3.0mm, etc. | |
Spectral Measured Graph:
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Picture 1: 300-495nm UV filter spectral measurement |
What is a UV filters?
A UV filter is an optical component specifically designed to transmit, block, or separate ultraviolet light. It plays a key role in scientific research and industrial applications, particularly in scenarios requiring precise control of light in the ultraviolet spectrum. Its main types include: UV bandpass filters, UV cut-off filters, UV longpass filters, UV shortpass filters.
What is typical application for UV filters?
The application scope of ultraviolet UV filters is very extensive, including:
Firstly, in the biomedical and life sciences, the UV filters detect weak biological signals, such as in fluorescence microscopes and flow cytometer. Secondly, in industrial inspection and manufacturing, the UV filters perform high-voltage corona discharge detection and UV flaw detection. Thirdly, in security and forensics, they enable trace evidence detection and document/currency anti-counterfeiting. Fourthly, in scientific research and spectral analysis, the UV filters facilitate Raman spectroscopy and astronomical observation. Additionally, photographers use them as UV protection filters, and disinfection systems utilize them for UV sterilization.
What is key parameter when choose for right UV Filter?
When selecting a UV Filter, There are many factors that need to be considered. The following are the key parameter characteristics that need to be taken into account primarily：
Firstly, consider the core optical parameters, including the center/cut-off wavelength, half bandwidth, peak transmittance, blocking range and depth. Secondly, selecting the substrate material, it can be optical glass such as ultra-clear glass, quartz glass or color filter glass. Additionally, considering physical and environmental specifications such as dimensions, thickness, surface quality, and environmental stability, as these factors are equally important.
Shenzhen Hengda Liyuan Optoelectronics introduced advanced optical technology that apply depositing nano-materials through ion-assisted evaporation onto a multilayer hard film in a high vacuum environment which coating layer is firm and has good tightness, and small bandwidth drift. Liyuan optoelectronics have been focus on optical coating for more than 17 years and offer one-stop optical filters solution including: Narrow Bandpass Filters, IR cut-off Filters, Longpass & Short Filters, Notch Filters, ND filters, Star filters and Optical sapphire block…etc.
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