Product type: Thin Film Filter. Application: Medical.
Overview
Round 50.8mm Longpass 420nm Optical Glass Filter is a longpass / shortpass filter made from Glass. Listed geometry: size 80*80mm or Customized, thickness 0.5mm-1mm. Optical / electrical data: bandwidth 20-25nm. Surface quality 60/40. Typical applications: Medical. Dimensions, material grade, coating and finish can be quoted to your drawing; the values above are the listed starting point.
Specifications
| Material | Glass |
|---|---|
| Type | Thin Film Filter |
| Shape | Customized |
| Size | 80*80mm or Customized |
| Fwhm | 20-25nm |
| Surface Quality | 60/40 |
| Usage | Medical |
| Thickness Range | 0.5mm-1mm |
| Color | Transparent |
| Principle | Cut-off Filter |
| Angle of incidence | 0° |
| Supplier | Nano Macro Optics Co.,Ltd. |
What to specify when you request a quote
- Spectral target — listed as “20-25nm”; state the centre or edge wavelength, the bandwidth and the minimum transmission in the passband.
- Blocking — give the blocking range and optical density (OD) the system needs.
- Angle of incidence — listed as “0°”; interference filters shift with angle, so specify the operating angle and cone.
- Size and thickness — listed as “80*80mm or Customized”; give outline, thickness and tolerance, and whether the filter is mounted.
- Substrate — listed as “Glass”; name the substrate glass if thermal or UV behaviour matters.
- Surface quality — listed as “60/40”; quote scratch-dig for imaging paths.
Engineering guides for this part
For material grades and coating options, see Shortpass Filter Glass Material for Optical Glass Assemblies. For an application example, read Longpass Filter Glass for Appliance Sensor Calibration. A related standard product is Shortpass Filter.
FAQ
What is the Round 50.8mm Longpass 420nm Optical Glass Filter made of? expand_more
It is listed as Glass. Other grades can be quoted if your application needs different transmission, thermal or chemical properties.
What sizes and thicknesses are available? expand_more
The listing gives size 80*80mm or Customized, thickness 0.5mm-1mm. Custom outlines and thicknesses are made to drawing; state the tolerance you need.
What optical or electrical performance does it have? expand_more
Listed values: bandwidth 20-25nm. Confirm the values at your operating wavelength, angle and temperature when you request a quote.
Where is this longpass / shortpass filter used? expand_more
Listed applications: Medical.
What should I include in a quote request? expand_more
Include spectral target, blocking, angle of incidence, size and thickness and substrate, plus quantity and a drawing if the part is custom.
