Product type: Thin Film Filter. Application: Optical. Model: SPF380.
Overview
Machine Vision Filter with UV Transmitting Glass for Enhanced Clarity: an optical filter made from Optical Glass. Listed geometry: thickness Customized. Optical / electrical data: wavelength 380±5, transmittance ≥90. Typical applications: Optical. Dimensions, material grade, coating and finish can be quoted to your drawing; the values above are the listed starting point.
Specifications
| Material | Optical Glass |
|---|---|
| Type | Thin Film Filter |
| Shape | Customized |
| Usage | Optical |
| Model NO. | SPF380 |
| Thickness Range | Customized |
| Principle | Cut-off Filter |
| Angle of incidence | 0° |
| Cut-on Wavelength (Nm) | 380±5 |
| Passband Range (Nm) | 305-450 |
| Passband Transmittance (%) | ≥90 |
| Blocking Range (Nm) | 640-850 |
| Optical Density (Od) | 2 |
| Supplier | Shanghai Mega-9 Optoelectronic Co., Ltd. |
Technical data
| Name | Cut-off Wavelength | Passband Range | Passband Transmittance | Blocking Range |
| SPF650 | 650±5nm | 400 nm – 640 nm | ≥ 90%(Tavg) | 700 – 1100 nm (OD≥3) |
| SPF400 | 400±5nm | 200 nm – 390 nm | ≥ 85% (Tavg) | 430 – 700 nm (OD≥3) |
| SPF380 | 380±5nm | 305nm – 450nm | ≥ 90%(Tavg) | 640 – 850 nm(OD≥2) |
What to specify when you request a quote
- Spectral target — listed as “380±5”; state the centre or edge wavelength, the bandwidth and the minimum transmission in the passband.
- Blocking — listed as “640-850”; 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 “Customized”; give outline, thickness and tolerance, and whether the filter is mounted.
- Substrate — listed as “Optical 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 Color Filter Glass Materials for High-Performance Optical Screening and Imaging. How parts like this are machined and finished is covered in Custom Precision Glass Machining for Complex Components. For an application example, read How to Choose Custom Washing Machine Control Panel Glass: A 2026 Buyer's Guide. Before sending a drawing, check Precision Glass Machining Tolerances & Specifications: A B2B Guide. A related standard product is Optical Glass Colour Filter.
