BP350nm bandwidth 70nm filter

RUICCN-BP350nm bandpass filter is a UV bandpass filter used in the UV and purple bands. This product is coated with JGS1 quartz material, allowing light with a wavelength of 350nm and a bandwidth of 70nm to pass through. It cuts off deep UV, visible light, and near-infrared light outside the passband. If you have additional requirements for the substrate material, please contact our customer service personnel.

The 350nm bandpass filter produced by Ruicheng Optoelectronics is characterized by a very steep control from the cut-off point to the high transmittance point, and a relatively wide cut-off range design. However, for the production process and film system of ultraviolet bandpass filters, there are not many domestic manufacturers that can cut-off up to 1100nm. This product has achieved a very high cutoff from 200nm deep ultraviolet to 4000-700nm visible light and 780-1100nm near-infrared light.

Technical Parameters:

Process: Magnetron Sputtering Coating;

Substrate material: UV melted quartz (other materials can be customized, please consult sales personnel)

Application wavelength range: 200-1100nm;

Center wavelength (CWL): 350± 10nm；

Bandwidth (FWHM): 70+ 10nm；

Incident angle: 0 degrees;

Peak transmittance (T peak):>90%;

Blocking depth: OD4;

Dimension: 40mm square piece, size can be customized according to customer needs;

Surface quality: 60/40;

Surface parallelism:λ /4；

Ruicheng Optoelectronics mainly produces high-end optical lenses, optical coatings, ultra narrow band filters (up to 3nm), deep ultraviolet narrow band filters, ultra wide bandpass filters, dual bandpass filters, tri bandpass dichroic mirrors and other difficult optical products.

Actual measured spectral curve: