Key Features
- Exceptional Hardness & Durability: Engineered with robust thin-film coatings that deliver high hardness and abrasion resistance, ensuring long service life in continuous laboratory operation.
- Superior Signal-to-Noise Ratio (SNR): Excellent out-of-band blocking minimizes stray light and background noise, enabling high-precision biochemical measurements.
- High Transmission & Deep Blocking: Optimized for high peak transmission at target wavelengths with deep blocking of unwanted spectral regions for accurate detection.
- Wide Application Coverage: Ideal for biochemical analyzers, microplate readers, and biological & chemical analysis instruments used in diagnostics and research.
- Compact, Versatile & Customizable: Available in multiple diameters with custom wavelength options to fit diverse instrument designs and assay requirements.
General Description
Shape Optics Technologies (SOT) offers a comprehensive range of Biomedical Optical Filters designed for the stringent demands of biochemical and medical instrumentation. These filters are widely deployed in biochemical analyzers, microplate readers, and analytical systems where precise wavelength control is critical.
Manufactured with exceptional mechanical durability and spectral stability, SOT biomedical filters maintain consistent optical performance over extended periods. Their high transmission, tight wavelength tolerance, and strong out-of-band blocking significantly enhance measurement accuracy by reducing noise and improving signal clarity—key factors in reliable biochemical analysis and diagnostics.
Standard sizes include 8 mm, 10 mm, 12.7 mm, and 15 mm, supporting wavelengths from 340 nm to 630 nm, with customization available for specific instrument or assay needs.
Spectrum Transmission Curves & Custom Solutions
Standard spectral transmission curves are available for all products.
If standard components do not meet your application requirements, custom biomedical filters can be designed to your exact wavelength, bandwidth, and blocking specifications.
Contact us to discuss your application or request a custom quotation.
Coating Quality & Environmental Reliability
All biomedical filters are tested to MIL-C-675C and CCC-C-440 standards to ensure durability and reliability:
- Adhesion Test: LT-90 tape test, three removals; no blistering or peeling
- Temperature Cycling: −62 ± 1 °C to 71 ± 1 °C; no film detachment
- Abrasion Resistance: ≥1.0 lb (0.45 kg), 25 cycles; no surface damage
- Humidity Resistance: 49 ± 2 °C, 95–100% RH for 24 hours; film intact
- Solvent & Cleaning: Acetone and alcohol exposure; no peeling or scratches
- Salt Spray: 100 hours at 35 °C, 5% NaCl; excellent corrosion resistance
Standard Specifications
| Diameter (mm) | Thickness (mm) | Typical Wavelengths (nm) | CWL Tolerance | Bandwidth (FWHM) | Surface Quality |
|---|---|---|---|---|---|
| 8 | < 6 | 340, 380, 450, 492, 510, 546, 578, 589, 590, 600, 620, 630 | ±2 nm | 10 ± 2 nm | 80-50 |
| 10 | < 6 | Same as above | ±2 nm | 10 ± 2 nm | 80-50 |
| 12.7 | < 6 | Same as above | ±2 nm | 10 ± 2 nm | 80-50 |
| 15 | < 6 | Same as above | ±2 nm | 10 ± 2 nm | 80-50 |
Applications
Biomedical filters from SOT are widely used in:
- Biochemical Analyzers – Accurate detection of biochemical reactions
- Microplate Readers – High-SNR optical measurements in diagnostics labs
- Biological & Chemical Analysis Instruments – Precise wavelength isolation for research and clinical testing
These filters are essential components for precision measurement systems in scientific research, diagnostics, and biotechnology.
SOT Strengths & Capabilities
SOT is a trusted supplier of high-precision optical filters, offering both standard products and fully customized solutions. With deep expertise in optical thin-film coatings and rigorous quality control, we deliver biomedical filters that provide high transmission, excellent blocking, mechanical durability, and long-term reliability—backed by responsive technical support.
Standard Products
| Diameter (mm) | Typical Wavelengths (nm) | Product Code |
|---|---|---|
| 8 | 340, 380, 450, 492, 510, 546, 578, 589, 590, 600, 620, 630 | CBP-340-8-01 |
| 10 | 340, 380, 450, 492, 510, 546, 578, 589, 590, 600, 620, 630 | CBP-380-10-01 |
| 12.7 | 340, 380, 450, 492, 510, 546, 578, 589, 590, 600, 620, 630 | CBP-450-12.7-01 |
| 15 | 340, 380, 450, 492, 510, 546, 578, 589, 590, 600, 620, 630 | CBP-510-15-01 |
Customization options are available upon request.