Customized Narrow Band Filter, Laser Glass Filter, Long-Wavelength Pass Filter
What Is a Long Pass Optical Filter?A long pass filter (LPF) allows wavelengths longer than a specified cutoff to pass through while blocking shorter wavelengths. What does a 515nm long pass filter do? It transmits light above 515nm while blocking shorter wavelengths, allowing specific spectral components to pass through for imaging or analysis. What material is used for this filter? The filter is made of JB510 optical glass, which offers stable transmission and low absorption across the visible spectrum. Can it be customized? Yes, VY Optics offers full customization of wavelength, coating, and size. Is it suitable for laser use? Yes, it is ideal for laser and fluorescence applications due to its high laser damage threshold and surface quality. How to Choose the Right Optical Filter When selecting an optical filter, consider wavelength, coating, thickness, and application. JB510 glass long pass filters are ideal for fluorescence and imaging systems that require sharp cut-on and high transmission.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Material | JB510 Optical Glass |
| Size | 130 mm × 90 mm × 1 mm |
| Cut-on Wavelength | 515 ± 5 nm |
| Transmission Range [above 530 nm] | >90% above 530 nm |
| Blocking Range [below 500 nm] | OD3 below 500 nm |
| Surface Quality | 40-20 Scratch-Dig |
| Parallelism | <3 arcmin |
| Flatness | λ/4 |
| Coating | Optional AR / HR coating available |
| Refractive Index (nd) | 1.52 |
| Customization | Shape, thickness, and size on request |
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Key Features
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