Product Overview
At OPTOStokes, we’re dedicated to providing high-quality optical filters for professionals in optics and photonics. Our 550nm long wave pass filter, built with advanced multi-layer dielectric coating technology, is designed for applications requiring precise wavelength separation. It delivers over 90% transmittance in the 550-1100nm range while limiting transmittance to below 1% in 350-530nm, ensuring top-tier performance.
What is a Long Wave Pass Filter?
A long wave pass filter is an optical component that allows light with wavelengths above a specified cutoff to pass through while blocking shorter wavelengths. This feature makes it indispensable in applications needing isolated spectral regions, such as scientific research, industrial inspection, and imaging systems. Our 550nm model features a sharp cutoff curve at 550nm, ensuring minimal spectral leakage.
Key Features
- Precise Cutoff: Sharp transition at 550nm for accurate wavelength selection.
- High Transmittance: >90% transmittance across 550-1100nm maximizes desired spectral flux.
- Superior Blocking:<1% transmittance in 350-530nm effectively reduces unwanted light interference.
- Durable Construction: High-quality optical glass with multi-layer dielectric coating ensures long-term stability and reliability.
- Custom Options: Multiple sizes, shapes, and mounting methods available to meet diverse needs.
Applications
Our 550nm long wave pass filter excels in various fields:
- Fluorescence Microscopy: Isolates emission from fluorophores like RFP (≈584nm) or Cy3 (≈570nm) while blocking sub-550nm excitation light, enhancing image clarity—critical for observing cellular structures in biomedical research.
- Spectroscopy: Separates 532nm laser excitation from >550nm Raman scattering, improving signal quality. Suitable for absorption or emission spectral analysis.
- Machine Vision: Filters UV/blue light to boost contrast in industrial sorting, defect detection, or surface inspection—e.g., identifying specific colored products in food processing.
- Photography & Cinematography: Blocks blue/UV light to enhance warm tones, ideal for landscape photography or cinematic effects like highlighting sunsets or autumn colors.
- Optical Sensors: Reduces short-wavelength interference to improve signal-to-noise ratio, applicable in environmental monitoring or industrial automation.
Technical Specifications
| Parameter | Description |
|---|---|
| Cutoff Wavelength | 550nm |
| Blocking Range | 350-530nm @ T<1% |
| Transmission Range | 550-1100nm @ T>90% |
| Thickness | 1.0mm (standard); other thicknesses available |
| Surface Quality | 60/40 scratch-dig |
| Material | Optical glass with multi-layer dielectric coating |
| Dimensions | Customizable; standard sizes include 25mm diameter, 50mm x 50mm, etc. |
| Mounting Options | Unmounted or integrated into lens mounts |
Custom Options
We understand the uniqueness of each optical system, so we offer comprehensive customization:
- Sizes & Shapes: Circular, square, rectangular, or irregular shapes to match your specifications.
- Thickness: Various options to suit different application scenarios.
- Coatings: Custom coating designs for specific wavelength ranges or performance needs.
- Mounting: Integration into standard or custom lens mounts for easy system integration.
Our engineering team is ready to provide expert advice to ensure you get the optimal filter solution.
Why Choose OPTOStokes?
- Quality Assurance: Each filter undergoes strict testing to ensure consistent performance meeting international standards.
- Extensive Stock: Large inventory of standard filters enables quick delivery for urgent needs.
- Custom Expertise: Advanced production lines and technical expertise allow us to manufacture filters to your exact specifications.
- Competitive Pricing: High-quality products at affordable prices maximize your investment value.
- Exceptional Service: Support from selection to after-sales ensures the best experience.
Customer Challenges & Solutions
Choosing the right filter is critical for system performance. We address common challenges:
- Inaccurate Wavelength Selection: Our sharp 550nm cutoff ensures precise wavelength separation.
- System Compatibility Issues: Multiple sizes, shapes, and mounts guarantee seamless integration.
- Long Lead Times: Large stock and efficient production enable fast delivery of standard and custom products.
- Unstable Performance: High-quality materials and advanced coating technology ensure long-term stability.
Call to Action
Ready to enhance your optical system with our 550nm long wave pass filter? Contact our sales team at sales@optofilters.com to discuss your needs or request a quote.
Visit our website to fill out the inquiry form for more details. Let OPTOStokes be your partner in achieving optical excellence!
