Are you suffering from reflected light?
Our Wire Grid type WGF™ CAMERA FILTER supports wideband imaging from CMOS to InGaAs
What Our Filter Can Do
The polarization state of light changes when it is reflected on an object. By using a polarizing filter, it is possible to selectively suppress the reflected light that interferes with imaging.
Solution examples
Observation of reflected light
QR code reading through wrapping film
Anti-reflection when shooting a metal can
Observation of CFRP orientation *Image co-taken with Fraunhofer
A face wearing glasses
Internal inspection of apples with InGaAs camera
QR code reading through wrapping film
Anti-reflection when shooting a metal can
Observation of CFRP orientation
*Image co-taken with Fraunhofer
A face wearing glasses
Internal inspection of apples with InGaAs camera
Have you given up detection such as transparent contamination or extraordinal part ?
Image inspection using WGF™ camera filters and InGaAs sensors provides detections such as transparent contamination or extraordinal part that could not detected.
What Our Filter Can Do
Polarization is also useful for detecting contaminants in opaque containers and for detecting contaminants of the same color as liquids. Many kind of resins have a phase contrast effect. When two WGF™s are placed; in front of the light source and sensor as cross nicole status, the light from the light source can not reach the sensor basically, while the light whose polarization axis is rotated or depolarized by the resin characteristics can reach the sensor.
Solution examples
Transmitted light observation
Sensor model：ABA-003IR-GE/ABA-013VIR-GE
Visible light observation
1200nm infrared observation
1200nm infrared observation With WGF™
Detection of a resin fragment in an opaque bag filled with water
Visible light observation
1200nm infrared observation
1200nm infrared observation With WGF™
Detection of resin fragments in liquid
Left bottle) water right bottle) coffee
Specification Summary
- Flexible
construction - A convenient double structure with a fixed frame that can be attached to a lens as it is and a rotating frame that allows you to freely adjust polarization axis. Both are same diameter size.
- Filter diameter
lineup - M40.5 M46 M52 M55 M58 M77
Lineup of 6 sizes. Applicable to most sizes with step-up rings. - coating
- The filter part has a two-layer structure of wire grid film and glass, and is not AR coated. It is environmentally reliable because the wire grid layer is not exposed to outer.
- option
- Please contact us for special size and polarizing filters for light sources. You can get better anti reflection effect by using WGF™ for both light source and camera.
- Optical performance
- Single Transmittance: 39.98% 850-1,800nm Average
Extinction Ratio: 1,500 850-1,800nm Average
*Performance values and data described in this section are for reference only
*WGF™ camera filter is a development product and can be purchased for trial.
We also offer WGF™ panels that can polarize the light source. Please consider it as a set use with WGF™ camera filter
Lighting：LLRVC200NIR850/IR940
Lighting：TMN100x120-22IR850/IR940D-4
WGF™ panel for polarized light source with WGF™ sheets laminated on glass