High-Quality Fluorescence Interference Filters from China Suppliers - Advanced Manufacturing by Beijing Bodian Optical Factory

Beijing Bodian Optical Tech. Co., Ltd. is a prominent high-tech enterprise situated in the Beijing Economic Development Zone. Renowned as a leading supplier in China, our company specializes in the research and manufacturing of precision optical filters, supported by a state-of-the-art production environment and advanced testing equipment, In response to the COVID-19 pandemic, we committed significant resources to research and development, successfully creating core optical components for PCR quantitative detection equipment used in identifying the new coronavirus. Our innovative series of filters boasts exceptional transmittance and a high background noise level (exceeding OD6). The excitation and emission filters are meticulously designed for optimal isolation, making them ideal for the extraction and analysis of various detection reagent markers. This enhancement significantly improves the accuracy of detection signals, establishing us as a trusted factory for high-quality optical solutions in the healthcare industry

Product Details

🔬 Product Overview

Fluorescence filter is a key component used in biomedical and life science instruments. Its main function is to separate and select the characteristic wavelength spectrum from the excitation light and emission fluorescence of the substance in the biomedical fluorescence inspection and analysis system.

⭐ Key Features: Fluorescence filters are typically characterized by a deep cut-off depth and low autofluorescence. Multiple filters can be glued together to form a fluorescence filter set, which offers a high cost performance.

🧬 Application Field

Fluorescence filter is used in real-time fluorescence quantitative PCR instruments, which are widely used in molecular biology, food safety detection, public health epidemic monitoring, and other industries.

Fluorescence filter is used for detecting a variety of dyes and probes, for example:

🎨 Supported Dyes & Probes:
FAM / SYBR Green / Green / HEX / TET / Cy3 / JOE / ROX / Cy3.5 / Texas Red / Cy5 / LC Red640 / Cy5.5 etc.

Process	(IAD Hard Coating)
Wavelength	Ex（nm）	Em (nm)	Cross
	470-30	525-20	>6
	523-20	564-20	>6
	543-20	584-20	>6
	571-20	612-20	>6
	628-35	692-45	>6
Blocking	OD>6 @200～900nm or @200～1200nm
Slope (nm)	50%～OD5 <10nm
Cross	OD>6
Size (mm)	Φ4mm, Φ12mm, Φ12.7mm, Φ25.4mm etc.

📊 Spectrum

⚙️ Production Process

❓ Frequently Asked Questions

Q What is a fluorescence filter and how does it work?

A fluorescence filter is an optical component that selectively transmits specific wavelengths of light while blocking others. In fluorescence-based instruments, it separates excitation light from emission fluorescence by allowing only characteristic wavelength spectra to pass through, enabling accurate detection of fluorescent signals from biological samples.

Q What coating technology is used in these fluorescence filters?

These fluorescence filters are manufactured using IAD (Ion-Assisted Deposition) Hard Coating technology, which ensures superior durability, excellent optical performance, low autofluorescence, and a deep cut-off depth for precise spectral separation.

Q Which dyes and probes are compatible with these fluorescence filters?

These filters are compatible with a wide range of fluorescent dyes and probes commonly used in molecular biology, including FAM, SYBR Green, HEX, TET, Cy3, JOE, ROX, Cy3.5, Texas Red, Cy5, LC Red640, Cy5.5, and more.

Q What sizes are available for fluorescence filters?

Fluorescence filters are available in multiple standard sizes to suit different instrument configurations: Φ4mm, Φ12mm, Φ12.7mm, Φ25.4mm, and other custom sizes upon request.

Q What is the blocking performance of these fluorescence filters?

These filters provide outstanding blocking performance with an optical density of OD > 6 across a broad wavelength range of 200–900nm or 200–1200nm, and a cross-channel isolation of OD > 6, ensuring minimal spectral crosstalk between channels.

Q In which industries and applications are fluorescence filters commonly used?

Fluorescence filters are widely used in real-time fluorescence quantitative PCR instruments and find broad applications across molecular biology research, food safety detection, clinical diagnostics, public health epidemic monitoring, and other life science analytical fields.