1% attenuation filter
1% attenuation filter (dimmer): the dimming values are 0.9db and 10dB. Neutral density filter (attenuator) is an optical filter that attenuates light intensity without changing the distribution of spectral energy. After passing through the filter, the light of different wavelengths attenuates in the same proportion, so that the optical element maintains approximately equal light energy transmittance in the wide band The filter (dimmer) sheet abs-jg08 of linear beam smoke detector simulates the diffusion of smoke and can detect the fire within a fixed range around the infrared ray. Its working principle is to use the dimmer sheet to reduce the light quantity of the beam emitted by the infrared illuminator to the infrared receiver to judge the fire. This fire detection method is usually called dimming method.
| Items | Parameters |
|---|---|
| Product index | customizable |
| Size range | 10-100mm |
| Thickness | 2 ± 0.1mm |
| Density tolerance | ± 2% |
| Luminous aperture | > 90% |
| Materials | green plate glass, K9 glass, fused quartz |
| Attenuation band | (1) UV (ultraviolet band): 250nm~380nm, attenuation 20%, 50%; (2) VIS (visible light band): 400nm~700nm attenuation: 99%, 90%, 80%, 70%, 50%, 30%, 20%, 10%; (3) Vis+NIR (visible band and near infrared band): 400nm~1000nm; (4) Optical communication band: 1200nm, 1310nm, 1550nm, transmittance after attenuation 70%, 20%, 50%, 1%, etc. |
In addition, We can customize the optical filters according to customer requirements or drawings.
For details, please consult:
| Items | Parameters |
|---|---|
| Product index | customizable |
| Size range | 10-100mm |
| Thickness | 2 ± 0.1mm |
| Density tolerance | ± 2% |
| Luminous aperture | > 90% |
| Materials | green plate glass, K9 glass, fused quartz |
| Attenuation band | 1) UV (ultraviolet band): 250nm ~ 380nm, attenuation 20%, 50% 2) VIS (visible light band): 400nm ~ 700nm attenuation: 99%, 90%, 80%, 70%, 50%, 30%, 20%, 10% 3) Vis + NIR (visible band and near infrared band): 400nm ~ 1000nm 4) Optical communication band: 1200nm, 1310nm, 1550nm, transmittance after attenuation 70%, 20%, 50%, 1%, etc |
| Surface quality | |