Description
1. Features
- High Transmission: Multiple-channel filters from SOT offer excellent transmission rates for the desired wavelengths.
- Efficient Blocking: These filters feature deep blocking across a wide spectral range, ensuring minimal interference from unwanted wavelengths.
- Narrow FWHM: With narrow Full Width at Half Maximum (FWHM), these filters deliver high precision in spectral measurements.
- Sharp Slope: Designed for applications requiring steep transitions between passbands and blockbands, ensuring sharp cutoffs.
- Versatility: These filters are ideal for use in military, aerospace, biomedical instruments, spectral analysis, and high-precision optical systems.
2. General Description
Shape Optics Technologies Pte Ltd (SOT) manufactures high-efficiency multiple-channel filters with advanced technology, providing excellent performance for diverse applications in industries requiring high precision and low error tolerance. These filters are widely used in bio-medical and fluorescence instruments, enabling accurate spectral analysis and separation of multiple signal channels.
The filters are designed with high transmission capabilities, deep blocking characteristics, and narrow FWHM to ensure precise wavelength discrimination. With sharp slopes, they provide clear transitions between transmission and blocking regions, making them ideal for highly sensitive measurement devices. SOT offers various designs, including dual-channel, triple-channel, and four-channel filters, to cater to different applications and wavelength requirements.
These filters are used in military and aerospace technologies, where precision in spectral data is critical, as well as in biomedical instruments that require highly specific wavelength separation for accurate diagnostics. The filters can be customized according to the specific needs of each application, providing tailored solutions for each customer.
3. Spectrum Transmission Curves
- Customizable Service: Standard products are available, but SOT can also customize filters based on specific wavelength needs, blocking efficiency, and other parameters. Contact us for custom design services tailored to your application.
4. Coating Quality
SOT’s multiple-channel filters are subjected to rigorous quality control and testing to ensure durability and high performance:
- Adhesion Test: Per MIL-C-675C standards, adhesion tests are conducted by applying tape that meets LT-90 specifications. The tape is applied and removed three times with no blistering or peeling.
- Temperature Test: Filters are subjected to temperatures from -62±1℃ to 71±1℃. After two hours at room temperature (16℃~32℃), the adhesion is rechecked, ensuring no film detachment.
- Abrasion Resistance: With a gauze tester applying a 1.0 lbs force, the filters undergo 25 abrasion cycles to test for any damage, ensuring long-term durability.
- Humidity Test: Exposed to 95-100% humidity at 49 ±2℃ for 24 hours, the filters remain intact with no peeling, scratches, or defects.
- Solvent and Cleaning: Acetone and alcohol tests are carried out at room temperature for at least 10 minutes. After cleaning, no peeling or scratches appear.
- Salt Spray Test: Filters are exposed to 5% saltwater for 100 hours at 35°C with no signs of degradation.
5. Standard Specifications
Specification | Details |
Wavelength Range | Customizable based on application requirements |
Transmission | High transmission for selected wavelengths |
Blocking Efficiency | Deep blocking across unwanted wavelengths |
FWHM | Narrow Full Width at Half Maximum for high precision |
Slope | Sharp transitions between passbands and blockbands |
Material | Optical glass, various coating materials available |
Flatness | 1/2λ |
Parallelism | < 3’ |
6. General Applications and Examples
Multiple-channel filters are designed for precise wavelength separation and are ideal for:
- Military Applications: For detection, spectral analysis, and signal separation in military sensors and systems.
- Aerospace Sciences: Used in spectrometers and sensors for accurate measurement and analysis of atmospheric conditions.
- Bio-Medical Instruments: Essential for fluorescence and spectral diagnostics, enabling accurate disease detection and measurement in clinical settings.
- Spectral Analysis: Employed in laboratories and field testing where precise wavelength separation is necessary for scientific research and analysis.
- High-Precision Optical Systems: Used in a wide range of applications requiring high-performance optical filtering and signal separation, such as laser systems and precision instrumentation.
7. SOT Strengths and Capabilities
Shape Optics Technologies Pte Ltd (SOT) has extensive expertise in developing high-quality optical components tailored for the most demanding applications. Our commitment to innovation and precision has allowed us to serve industries such as military, aerospace, biomedical, and high-precision optical systems. SOT’s ability to customize multiple-channel filters ensures that every product meets the exact specifications required by our clients. We take pride in our state-of-the-art manufacturing processes, rigorous quality testing, and commitment to customer satisfaction. With SOT, you can expect reliability, durability, and cutting-edge optical solutions designed to meet your exacting standards.
8. Standard Products
Product | CWL (nm) | Tavg (%) | FWHM (nm) | Blocking |
Dual-Channel Filter | 808, 850 | 95 | 20, 20 | OD > 200-1100nm |
Triple-Channel Filter | 465, 546, 645 | 95 | 35, 30, 55 | OD > 645-520nm & 670-600nm |
Four-Channel Filter | 465, 646, 645, 720 | 93 | 26, 50, 73, 135 | OD > 456-560nm & 564-542nm |