690nm Longpass Filter
The 690nm Longpass Filter is a high-performance optical component designed to transmit wavelengths longer than 690nm while blocking shorter wavelengths. It is ideal for applications requiring precise wavelength separation and high transmission efficiency.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Central Wavelength (nm) | 690 |
| Cut-off Wavelength Range (nm) | <690 |
| Transmission (%) | >90 |
| Dimensions (mm) | Customizable |
| Thickness (mm) | 1.0±0.1 |
| Substrate Material | Optical Glass |
| Surface Quality | 60/40 |
| Operating Temperature Range (°C) | -50 to +80 |
| Angle of Incidence (°) | 0-45 |
| Optical Density (OD) | >3.0 @ 650nm |
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