The FD-1665 3CCD Camera can be configured for polarimetric imaging. Polarimetric or polarization imaging is an active research area in medical,machine vision and defense 
applications. Because the polarimetric preserving and/or inducing properties of materials are often complementary to their spectral signatures, polarization provides additional information to analysts and researchers. Polarization imaging has been used to identify stress and defects in aircraft assemblies; “see” into the water column in littoral and marine applications, such as oil spill detection; separate specular from diffuse reflectance for material analysis and identification; and automatically detect manmade objects in natural surroundings.

The prisms of the FD-1665P optical assembly are fabricated with neutral, non-polarizing beam splitter coatings. The first coating surface reflects 30% of the light and transmits 70%. The second coating provides a 50% transmittance and 50% reflectance. This combination results in splitting the incoming broadband light into three components with equal spectral and spatial content. Linear polarization trim filters with >99% polarization efficiency and contrast ratio of up to 3000:1 are placed in front of each sensor.

The filters can be oriented per customer specification. Commonly, the filters are oriented at 0, 45, and 90 degrees or three equal angular spacing and cover the spectral range 380-1000nm. The FD-1665P polarization camera can be configured with either color or monochrome sensors for each channel.

Polarization Configuration Options

FD-1665P-C: Color Bayer CCDs with 0, 45, 90 or 0, 60, 120 linear polarizer
FD-1665P-M: Monochrome CCDs with 0, 45, 90 or 0, 60, 120 linear polarizer
FD-1665P-NIR: Near Infrared Monochrome (700nm-1000nm) CCD with 0, 45, 90 linear polarizer
FD-1665P-Custom: Custom linear orientations or spectral polarimetric options

Contact us on custom configuration options for your application.

FD-1665P Polarization Sensor Options

Sensor Type Sensor Size (HxV pixels) Sensor Technology Optical Size Pixel Size (microns) Max Frame Rate (at full resolution)
Sony ICX424 659x494 Progressive Scan CCD 1/3" 7.4x7.4 71
Sony ICX414 659x494 Progressive Scan CCD 1/2" 9.9x9.9 74
Sony ICX618 659x494 Progressive Scan CCD 1/4" 5.6x5.6 119
Micron MT9V022 752x480 Progressive Scan CMOS 1/3" 6.0x6.0 60
Sony ICX415 782x582 Progressive Scan CCD 1/2" 8.3x8.3 54
Sony ICX204 1034x779 Progressive Scan CCD 1/3" 4.65x4.65 20
Sony ICX204 1034x779 Progressive Scan CCD 1/3" 4.65x4.65 30
Sony ICX445 1296x966 Progressive Scan CCD 1/3" 3.75x3.75 32
Sony ICX267 1392x1040 Progressive Scan CCD 1/2" 4.65x4.65 17
Sony ICX285 1392x1040 Progressive Scan CCD 2/3" 6.45x6.45 17
Sony ICX285 1392x1040 Progressive Scan CCD 2/3" 6.45x6.45 30
Sony ICX274 1628x1236 Progressive Scan CCD 1/1.8" 4.4x4.4

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FluxData FD1665P 3CCD Polarimetric Camera - False Color Polarimetric Video

This camera has 3 linear polarizers rotated at 0, 45 and 90 degrees relative to each other. This video is color composite , where Red is the 0 degrees, Green is 45, and Blue is the 90 degree channel information. Therefore, when a pixel is one of those 3 colors, the light is completely polarized in the respective direction. Other colors imply the light is a combination of polarization angles.

FluxData FD1665P 3CCD Polarimetric Camera - 90 degrees Polarization Video

This video is the unprocessed output from the channel with a linear polarizer oriented at 90 degrees.

FluxData FD1665P 3CCD Polarimetric Camera - 45 Degree Polarized Video

This video is the unprocessed output from the channel with a linear polarizer oriented at 45 degrees.

FluxData FD1665P 3CCD Polarimetric Camera - 0 Degrees Video

This video is the unprocessed output from the channel with a linear polarizer oriented at 0 degrees.

FluxData FD1665P 3CCD Polarimetric Camera - Sample Difference Video

This video is a sample of how polarimetric imagery can be processed using a simple difference (with scaling to boost the intensity) between the 90 and 45 degree channels.