LP635nm Longpass Filter | 2.0mm Thickness
The OPTOStokes LP635nm Longpass Filter is designed to transmit red and near-infrared wavelengths with exceptional clarity and stability. It offers high transmission above 640nm while effectively blocking unwanted shorter wavelengths below 620nm, making it ideal for fluorescence emission detection, machine vision, and spectroscopy applications.
Technical Specifications
| Cut-on Wavelength (CWL) | 635 nm |
| Transmission Range | 640 – 1100 nm @ T>90% |
| Blocking Range | 350 – 620 nm @ T<1% |
| Surface Quality | 60 / 40 |
| Thickness | 2.0 mm |
| Reference Part No. | 21105181 |
Optical Performance
With precise edge control and durable hard coating, the LP635nm filter ensures minimal spectral shift and consistent transmission performance even under variable temperature and humidity conditions. The high blocking efficiency eliminates background interference, delivering superior contrast for red and NIR imaging systems.
Applications
- Fluorescence emission and excitation separation
- Machine vision illumination and detection
- Biomedical and analytical instruments
- Laser alignment and optical sensing
Customization & Service
OPTOStokes supports OEM customization, including round, square, and mounted options to fit your optical assemblies. Each filter is inspected to meet strict transmission uniformity and surface quality standards, ensuring reliable integration in precision optical systems.
Contact Us
For custom wavelength designs, rapid prototyping, or detailed coating data, please contact our optical engineers at sales@optofilters.com or visit www.optofilters.com.
