ZWB filter zwb1 zwb2 zwb3 for ultraviolet light 365nm 310nm 254nm
ZWB filter is a series optical glass which transmitted ultraviolet light and block visible lights. ZWB filter glass typically appears black. Different ZWB models are available for transmitting specific ultraviolet bands, including UV-A (long-wave ultraviolet), UV-B (medium-wave ultraviolet), and UV-C (short-wave ultraviolet).
The three common types are ZWB1, ZWB2, and ZWB3.
| Model NO. | Thickness(mm) | 254nm | 280nm | 313nm | 334nm | 365mn | 405nm | 700nm | date |
| ZWB1 | 1 | ≥50.0 | ≥81.0 | ≤1.0 | ≤30.0 | ||||
| ZWB2 | 1 | ≥38.0 | ≥80.0 | ≤8.0 | ≤14.0 | ||||
| ZWB3 | 2 | ≥34.0 | ≥86.0 | ≤28.8 | ≤64.6 |
Custom Optical Glass ZWB UV Filter is produced for ultraviolet optical system, UV lamps, detection devices, fluorescence applications and other professional optical uses. Produced on the basis of K9 glass or optical glass, it serves as a stable material base for UV transmission and visible light controlling.
This ZWB filter can be produced with diameters starting from 10mm up to 300mm, as well as with customized dimensions in accordance with specific requirements of the optical device and industrial project. The filter is ideal for those customers who require a customized optical filter for UV detection, UV lighting, laboratory equipment, inspection system and other optical assemblies.
With a transparent aperture of more than 98%, the ZWB filter provides necessary conditions for the optical performance efficiency in practical application. The product has surface quality options 60/40 and 40/20 that satisfy various requirements in terms of the appearance, scratch dig quality and optical transparency.
The filter is produced by means of 1/4 flatness, ±0.1 diameter tolerance, ±1% focal length tolerance and ±0.01 center thickness tolerance. All these factors make it a practical variant for such optical projects where accurate dimensions and stable assembly performance are required.
According to the customer’s requirements, the coating can be customized. In any case, whether as a UV pass filter, visible cut filter, black glass UV filter or optical glass component, this ZWB filter can be adjusted for different industrial and optical purposes.
Therefore, for the customers who are interested in customized ZWB UV filter with K9 glass or optical glass material, high transparent aperture, precision tolerance and customizable coating, this product is a good choice.
Specifications
Item Name: ZWB UV filter
Material: K9 glass / optical glass
Surface: 60/40, 40/20
Flatness: 1/4
Diameter Tolerance: ±0.1
Focal Length Tolerance: ±1%
Center Thickness Tolerance: ±0.01
Transparent Aperture: >98%
Diameter: 10-300mm or customized
Coating: As requirements
FAQ
1.What is the use of a ZWB filter?
ZWB filter is widely used in ultraviolet optical system, ultraviolet lamp, detector, fluorescence, etc.
2.What is the material of this ZWB filter?
This filter is made of K9 glass and optical glass according to the specific needs of the customers in terms of optical and application requirements.
3.Is the diameter customizable?
Yes. The normal diameter range is 10-300mm and it is also customizable for projects.
4.What is the surface quality for this filter?
There are 60/40 and 40/20 available as the surface quality options.
5.What is the transparent aperture of this filter?
Transparent aperture is more than 98% for stable optical performance in UV and optical.
6.Is the coating customizable?
Yes. The coating is customizable according to customer needs in UV, optical and industrial applications.


































David –
The manufacturer provided excellent service and responded quickly to our requirements. The Custom ZWB Filter UV Optical Glass has good quality, accurate dimensions, and reliable optical performance. Production and delivery were both fast. Various sizes, thicknesses, and shapes can also be customized. Highly recommended.
Schneider –
Thank you so much, the ZWB2 filter look perfect.got exactly 365nm
Elon –
professional,fast and nice servive for our new project. thank you so much.