The BP460-20nm-2.0mm bandpass filter is a precision-engineered bandpass filter designed for applications demanding superior wavelength selectivity in the blue spectral region. With a center wavelength of 460nm, a narrow 20nm full width at half maximum (FWHM), and a robust 2.0mm substrate thickness, this filter delivers exceptional optical performance for fluorescence microscopy, PCR detection systems, and advanced imaging applications. Manufactured by OPTOStokes using high precision coating technology, this filter meets the stringent requirements of research and industrial users worldwide.

Technical Specifications

The BP460-20nm-2.0mm filter features precisely controlled transmission characteristics optimized for blue light isolation. The following table outlines the complete technical specifications:

Key Performance Features

This BP460nm filter demonstrates several critical performance attributes that distinguish it from conventional optical filters. The transmission efficiency exceeds 90% within the designated passband, ensuring maximum signal throughput for light-sensitive detection systems. The narrow 20nm FWHM provides excellent spectral resolution, enabling precise separation of closely spaced emission lines in multi-channel fluorescence applications. The extended blocking range from 350nm to 1100nm with transmission below 1% effectively suppresses unwanted background signals and stray light, dramatically improving signal-to-noise ratios in demanding measurement environments.

The 2.0mm substrate thickness offers enhanced mechanical stability and thermal management compared to thinner alternatives, making this filter particularly suitable for high-power laser applications and temperature-variable experimental setups. The durable hard coating withstands repeated cleaning cycles and environmental exposure without performance degradation, ensuring long-term reliability in production environments.

Applications

The BP460-20nm-2.0mm bandpass filter excels in numerous scientific and industrial applications where precise blue light filtering is essential:

Fluorescence Microscopy: This filter is ideally suited for excitation or emission filtering of blue fluorophores including DAPI, Hoechst dyes, and CFP (Cyan Fluorescent Protein). The narrow bandwidth minimizes spectral crosstalk in multi-color imaging experiments, while the high transmission maximizes fluorescence signal detection. Research laboratories conducting cell biology, neuroscience, and pathology studies benefit from the enhanced contrast and reduced autofluorescence background this filter provides.

PCR Detection and qPCR Systems: Real-time polymerase chain reaction instruments rely on accurate fluorescence detection for quantitative DNA amplification monitoring. The BP460 filter's precise wavelength control and deep blocking characteristics enable reliable detection of FAM, SYBR Green, and other blue-emitting fluorescent reporters used in molecular diagnostics, genetic testing, and pharmaceutical development. The filter's thermal stability ensures consistent performance across multiple thermal cycling protocols.

Machine Vision and Industrial Inspection: Quality control systems utilizing blue LED illumination or 450-470nm laser diode sources benefit from this filter's ability to isolate specific wavelengths while rejecting ambient lighting interference. Applications include defect detection, surface inspection, and fluorescence-based sorting systems in manufacturing environments.

Spectroscopy and Chemical Analysis: Researchers conducting absorption spectroscopy, Raman spectroscopy, and photoluminescence measurements in the blue spectral region utilize this filter for wavelength selection and laser line cleanup. The deep blocking ensures accurate spectral measurements without interference from out-of-band radiation.

Customization and Service Excellence

OPTOStokes recognizes that modern optical systems often require customized solutions beyond standard catalog specifications. Our engineering team works directly with customers to modify this filter design for specific application requirements. Available customization options include:

Geometric Configurations: While standard circular formats are available in diameters ranging from 12.5mm to 50mm, we also manufacture square, rectangular, and custom-shaped filters to fit proprietary optical assemblies. Precision dicing and edge finishing ensure seamless integration into filter wheels, cube assemblies, and automated switching mechanisms.

Mounting Options: Filters can be supplied unmounted for OEM integration, or mounted in threaded rings, filter cubes, or filter cubes compatible with major microscope manufacturers. Custom mechanical interfaces are available for specialized instrumentation.

Spectral Tuning: The center wavelength and FWHM can be adjusted to match specific laser lines, LED sources, or fluorophore emission peaks. Multi-band configurations combining this filter with complementary wavelength regions are also available for multiplexed detection systems.

Environmental Specifications: For applications in extreme conditions, we offer enhanced environmental performance including extended temperature ranges, humidity resistance, and vibration tolerance suitable for field deployment and aerospace applications.

Why Choose OPTOStokes?

OPTOStokes has established itself as a trusted partner for optical filter solutions through our commitment to three core principles: comprehensive inventory, technical excellence, and responsive service. Our extensive stock of bandpass filters ensures rapid fulfillment of standard requirements, with many configurations shipping within 48 hours of order confirmation. This eliminates the lengthy lead times that often delay critical research projects and production schedules.

Our manufacturing capabilities leverage state-of-the-art thin-film deposition technology and rigorous quality control processes. Every filter undergoes spectral performance verification using calibrated spectrophotometry before shipment, with detailed test reports provided upon request. This attention to quality has earned OPTOStokes ISO 9001 certification and a reputation for reliability among leading research institutions and Fortune 500 manufacturers.

Beyond product quality, our technical support team provides expert guidance throughout the specification and implementation process. Whether you need assistance selecting the optimal filter configuration for a new application or troubleshooting performance issues in an existing system, our optical engineers are available to ensure your success.

Addressing Common Challenges

Optical system designers frequently encounter several challenges when implementing narrowband filters in blue spectral regions. Understanding these issues helps ensure optimal filter selection and system performance:

Lead Time Constraints: Many specialty filter manufacturers require 8-12 weeks for custom production, creating bottlenecks in instrument development and production ramp-up. OPTOStokes maintains substantial inventory of commonly requested specifications, enabling same-week delivery for urgent requirements. Our streamlined custom manufacturing process also reduces production cycles to 3-4 weeks for non-standard configurations.

Technical Support Gaps: Selecting the appropriate filter parameters requires deep understanding of both optical theory and application-specific requirements. Our applications engineering team collaborates with customers during the design phase, providing spectral modeling, compatibility verification, and optimization recommendations. This consultative approach prevents costly specification errors and accelerates time-to-market.

Quality Consistency: Batch-to-batch variation in filter performance can compromise instrument calibration and measurement reproducibility. OPTOStokes employs statistical process control and maintains detailed production records, ensuring consistent spectral characteristics across repeat orders. Our filter designs also incorporate generous tolerance margins to maintain performance despite minor manufacturing variations.

Integration Complexity: Mechanical mounting, angular sensitivity, and thermal management can complicate filter integration into compact optical assemblies. We provide detailed mechanical drawings, optical specifications at multiple angles of incidence, and thermal performance data to facilitate smooth integration. Custom mounting solutions eliminate design iterations and reduce assembly complexity.

Request a Quote or Technical Consultation

The BP460-20nm-2.0mm bandpass filter represents just one example of OPTOStokes' comprehensive optical filter portfolio. Whether your application requires this exact specification or a customized variant optimized for your unique requirements, our team is ready to assist. Contact our sales and engineering specialists at sales@optofilters.com to discuss your project requirements, request detailed specifications, or obtain a quotation. For immediate assistance, visit www.optofilters.com to explore our complete product catalog and access technical resources including spectral data, application notes, and integration guides.

We understand that successful optical system development requires more than just quality components—it demands partnership with suppliers who understand your challenges and share your commitment to excellence. Experience the OPTOStokes difference: superior products, expert support, and delivery you can depend on.