Stock Standard 285nm-450nm Hardcoated UV Longpass Shortpass Dichroic Filter Overview

285-450nm UV Dichroic Filter is specifically designed for separating and synthesizing ultraviolet and visible light bands. Coligh is a manufacturer of UV dichroic filters, specializing in producing various types of UV dichroic filters. Our UV dichroic filters exhibit a high reflectance exceeding 90% in the deep ultraviolet region while maintaining a transmission rate greater than 90% in the visible spectrum, enabling precise separation of ultraviolet and visible light.

The Characteristic Of Our UV Longpass and Shortpass Dichroic Mirror

UV Dichroic Filter is also called UV dichroic mirror. Our UV dichroic mirror has features below:

• Working wavelength: 285-450nm
• High reflection at UV range >90%, High transmission at visible range wavelength >90%
• Angle of incidence: 45 deg
• Coating: Hard Coating

Custom Capability Of UV Longpass Shortpass Dichroic Filter

As a professional manufacturer of optical filters, we specialize in custom design and production of UV dichroic filters covering the 200–450 nm spectral range.

Our custom capability:

• Wavelength range: 200-450nm (UV to visible)
• Filter type: Longpass dichroic filters, shortpass dichroic filters
• Angle of Incidence: 45 deg
• Reflection/Transmission: R>98%, T>90%
• Substrate: UV fused silica, optical glass, quartz
• Surface quality: 40/20, 20/10 (MIL-PRE-13830B)
• Coating：Hard dielectric coatings.

Example Spectrum Curve Of Longpass Dichroic Filter

285nm-450nm Hardcoated UV Longpass Shortpass Dichroic Filter Stock List

285-450nm UV Longpass Shortpass Dichroic Mirror Applications

• Fluorescence Microscope
  The UV dichroic mirror is the core component of a fluorescence microscope’s filter system. It reflects excitation light while transmitting fluorescence emission light. By utilizing reflection and transmission rather than absorption, it enables the collection of faint fluorescence signals. Researchers can also switch between different dichroic mirrors to observe cells labeled with different fluorescent dyes on the same fluorescence microscope.
• Multichannel Fluorescence Imaging
  When detecting two fluorescent dyes simultaneously, especially when their emission spectra are very close or partially overlap, short-pass dichroic mirrors enable more precise screening. These mirrors transmit ultraviolet light while reflecting visible light, facilitating more complex multicolor imaging.