Product type: Thin Film Filter. Application: Lighting, Medical, Optical, Photography.
Overview
Od2~ Od6 Fwhm 28nm Cwl 375nm Glass Optic Filter Bandpass UV Filter is a bandpass filter made from Glass. Listed geometry: size 5~80mm, thickness 1mm-2mm. Optical / electrical data: wavelength 375nm or Custom, bandwidth 28nm or Custom, transmittance T>90%. Typical applications: Lighting, Medical, Optical and Photography. 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 | 5~80mm |
| Fwhm | 28nm or Custom |
| Transmittance | T>90% |
| Usage | Lighting, Medical, Optical, Photography |
| Thickness Range | 1mm-2mm |
| Color | Transparent |
| Principle | Cut-off Filter |
| Angle of incidence | 0° |
| Center Wavelength | 375nm or Custom |
| Supplier | Nano Macro Optics Co.,Ltd. |
Technical data
| Materials | optical glass |
|---|---|
| Size | customized |
| Surface Quality | 60/40 |
| CWL | 434nm±3nm or custom |
| FWHM | 10nm±3nm or custom |
| Transmittance | 80%-90% |
| Blocking Range | 350-1100nm |
| Optical density | OD3-OD6 |
| Angle of Incidence | 0° |
| Coating | Hard coating |
What to specify when you request a quote
- Spectral target — listed as “28nm or Custom”; 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 “5~80mm”; 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 — quote scratch-dig for imaging paths.
Engineering guides for this part
For material grades and coating options, see Selecting Bandpass Filter Glass for Reliable Optical Performance. For an application example, read Bandpass Filter Glass for Appliance Light Detection Modules. A related standard product is Bandpass Filter.


