265nm UV Optical Filter Bandpass Filter For Chemical Spectral Analysis

265nm UV Optical Filter Bandpass Filter is an optical filter designed to selectively transmit light in the ultraviolet range with a wavelength of approximately 265 nanometers (nm) while blocking or attenuating other wavelengths of light. This type of filter is commonly used in scientific and industrial applications that require precise control of the ultraviolet light transmission.

 

Our 265nm UV filters can be made using various materials, including quartz, glass, and multiple types of plastic. The filters we produced have high transmittance in the pass band reaching over 90%, and a high cut-off rate in the blocking band to OD6. More importantly, we also provide flexible customization options perfectly suited to your needs.

 

Features

- Narrow bandpass for 265nm

- Ultraviolet disinfection

- Accurate wavelength

- Highly scratch-resistant

- High signal-to-noise ratio

- Deeply customized

- High transmittance

- ISO9001 certified

 

Parameters

Product Name	265nm UV bandpass filter
Central Wavelength (CWL)	265nm
FWHM	20nm or custom
Diameter	25mm or custom
Thickness	1mm or custom
Transmission Rate	>90%
Blocking depth	OD3 or custom
Coating	Hard-film coating
Tolerance	±0.01-0.1mm
Wavelength Range:	200-1100nm

 

Spectrum transmission curve

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Applications:

One of the primary applications of 265nm UV optical filters is fluorescence microscopy, where they are used to selectively filter out unwanted excitation wavelengths and allow only the desired fluorescence emission to pass through to the detector. They are also used in spectrophotometry and other appliances:

- Biomedical testing & analysis instruments

- Water quality testing machines

- Chemical Spectral Analysis

- Disinfection and sterilization products

 

How does 265nm UV Optical Filter Bandpass Filter apply for Chemical Spectral Analysis?

265nm UV bandpass filters are commonly used in chemical spectral analysis, particularly in ultraviolet-visible (UV-Vis) spectrophotometry applications. These filters isolate a specific wavelength range of light for analysis, essential for accurately quantifying the measured analyte.

 

In UV-Vis spectrophotometry, a sample is illuminated with a broad range of wavelengths of light, and the amount of light absorbed by the sample is measured at each wavelength. By comparing the absorption spectrum of the model to a standard or blank, the concentration of the analyte can be determined. However, some components in the sample may absorb light at multiple wavelengths, making it difficult to quantify the analyte accurately.

 

This is where 265nm UV bandpass filters come in. These filters isolate a narrow range of wavelengths around 265nm, a commonly used wavelength for measuring the absorbance of many analytes. When using a 265nm UV bandpass filter, only the light with wavelengths close to 265nm will be transmitted through the sample, while other unwanted wavelengths are blocked. This makes it easier to quantify the analyte accurately and improves the sensitivity and accuracy of the analysis.

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