He Rui optics' Longpass Filters are commonly used to isolate portions of the spectrum in a variety of industrial or life sciences applications including microscopy or fluorescence instrumentation. Longpass Filters are typically designed for a 0° Angle of Incidence, whereas Longpass Dichroic Filters are designed for use at a 45° Angle of Incidence. Longpass Filters can be used with Shortpass Filters to create custom bandpass filters. Certain Longpass Edge Filters can also be used as cold mirrors to minimize the heat buildup often caused by infrared radiation.
| Product name | longpass filter |
| Cut-on | 325-1300nm |
| Blocking wavelength | 200-1650nm |
| Optical density: | OD3; OD4; OD5; OD6 |
| Diameter&Tolerance | 0.5-600±0.02mm |
| Clear Aperture | ≥90% |
| Thickness&Tolerance | 0.3-50mm±0.02mm |
| Surface flatness | 1/10Lambda |
| Surface quality | 60/40/ 20/10 10/5 |
| Beveling | 0.1-0.3mm×45° |
| Coating | Hard Coated |
| Customizable as per your request | |
He Rui Optics produces a variety of precision optical components with experienced engineers and advanced equipment.We can produce standard and customized optical lens,mirror,filter,prism,windows,crystal,wafers.If you have any requirement,please contact us
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