Your Optical Filter Partner


optolong Machine Vision optical filterWith the development of industrial process, more and more production line are unattended. Most of the job is finished by the computer vision and analysis. In most of the industrial manufacturing, to distinguish different colors are very important. Such as food, drink, capsule, raw material and so on.

OPTOLONG is a professional manufacturers of optical filters. To support your machine vision system, we could provide the filters as below:
Sing Bandpass filter
Multi Bandpass filter
Longpass filter
Shortpass filter
Beam splitter
Protective windows
Color glass

Color glass also can be provided with large volume. As we all know that color glass is a good choice for the system for the reason that low cost and zero shift when AOI change. But color glass has the defect that low transmission, shallow slop. It’s a good choice but not the best one.

According to the spectrum of them, it can be devided into:
UV filter
IR filter
NIR filter

To maintain the image to be high contrast, high signal to noise ratio , OPTOLONG could provide the machine vision bandpass filter with hard coating on color glass.
Bandpass filter is the ideal choice for block the unwanted wavelength and transmit the wavelength which inspection objects require.

The advantage of color glass optical filter are:
High transmission above 90% or 95%;
Deep slop;
Relative right blocking depth.

IR Cut filter which is commonly used in the industrial camera also can be highly recommend to you. Even though for other supplier IR cut filter is very common and cheap. What we could offer for IR cut filter specially for industrial camera system:

large AOI change;
High quality of surface quality;
Excellent spectrum performance;
Deep slop change from 90% transmission to 10% transmission.

OPTOLONG coating machine OTFC-1300 and hard coating method would help the bandpass filters to repeat the performance, longlife and highly uniformity. For your machine vision system, we could support you from small quantity prototype to large quantity manufactureing. Tell us your requirement, we would be always here to support.