In light of JAI recently announcing 24 all new camera models going into mass production in July, we thought we would take a moment to delve into this new series and point out some of the brand new technical features of the cameras.
To begin with, these new models are available in either a GigE or CXP interface and all have the popular Pregius S Sensor, one of the more advanced global shutter sensors available. These “smaller pixels mean higher resolutions that can still fit into C-mount optical circles, while backside illumination (BSI) captures more light to let the small pixels perform like much larger pixels in terms of sensitivity and image quality.” (JAI)
Individual model numbers and brief at-a-glance specifications are as followed:
GigE
GOX-5105M-PGE (5.1 MP, IMX547, 1/1.8", monochrome, GigE Vision interface) 23 fps
GOX-5105C-PGE (5.1 MP, IMX547, 1/1.8", color, GigE Vision interface) 23 fps
GOX-8105M-PGE (8.1 MP, IMX546, 2/3", monochrome, GigE Vision interface) 14 fps
GOX-8105C-PGE (8.1 MP, IMX546, 2/3", color, GigE Vision interface) 14 fps
GOX-12405M-PGE (12.4 MP, IMX545, 1/1.1", monochrome, GigE Vision interface) 9 fps
GOX-12405C-PGE (12.4 MP, IMX545, 1/1.1", color, GigE Vision interface) 9 fps
GOX-16205M-PGE (16.2 MP, IMX542, 1.1", monochrome, GigE Vision interface) 7 fps
GOX-16205C-PGE (16.2 MP, IMX542, 1.1", color, GigE Vision interface) 7 fps
GOX-20405M-PGE (20.3 MP, IMX541, 1.1", monochrome, GigE Vision interface) 5 fps
GOX-20405C-PGE (20.3 MP, IMX541, 1.1", color, GigE Vision interface) 5 fps
GOX-24505M-PGE (24.5 MP, IMX540, 1.2", monochrome, GigE Vision interface) 4 fps
GOX-24505C-PGE (24.5 MP, IMX540, 1.2", color, GigE Vision interface) 4 fps
CoaXPress
GOX-5105M-CXP (5.1 MP, IMX547, 1/1.8", monochrome) 112 fps
GOX-5105C-CXP (5.1 MP, IMX547, 1/1.8", color) 112 fps
GOX-8105M-CXP (8.1 MP, IMX546, 2/3", monochrome) 71 fps
GOX-8105C-CXP (8.1 MP, IMX546, 2/3", color) 71 fps
GOX-12405M-CXP (12.4 MP, IMX545, 1/1.1", monochrome) 47 fps
GOX-12405C-CXP (12.4 MP, IMX545, 1/1.1", color) 47 fps
GOX-16205M-CXP (16.2 MP, IMX542, 1.1", monochrome) 36 fps
GOX-16205C-CXP (16.2 MP, IMX542, 1.1", color) 36 fps
GOX-20405M-CXP (20.3 MP, IMX541, 1.1", monochrome) 29 fps
GOX-20405C-CXP (20.3 MP, IMX541, 1.1", color) 29 fps
GOX-24505M-CXP (24.5 MP, IMX540, 1.2", monochrome) 24 fps
GOX-24505C-CXP (24.5 MP, IMX540, 1.2", color) 24 fps
Xscale
The new models all carry JAI’s new Xscale feature, which provides an alternative to traditional binning which is limited to "whole" pixels, such as 2x1, 2x2, 4x4, etc. With Xscale, the user can use floating point numbers to create virtual pixels that include "fractions" of various pixels. This lets users virtually "change" the 2.74 μm size of the pixels in the new Go-X Series cameras to precisely match the size of the pixels in old or obsolete cameras that need to be replaced. This is something that cannot be done with traditional binning. In addition, traditional binning can only be used on monochrome cameras while Xscale can be used with monochrome or color cameras. This means users can "bin" their color cameras using Xscale if they want to create larger pixels for more sensitivity or lower noise averaging.
Additionally, Xscale can independently scale in the horizontal and vertical directions. So, if you need to match a rectangular pixel size or if you need to match a camera setup that was using 2x1 or 1x2 binning, Xscale can do it. Xscale can work with RGB formats, but can also work with raw Bayer output, meaning that Xscale can give you higher frame rates and smaller file sizes than other manufacture similar cameras can for color applications. In sum, this new feature provides excellent flexiblity while also making it easy for the end user to adapt their older vision setup with work with these newer cameras.
XPress
While the higher resolutions afforded by smaller pixel sizes are a great feature, they result in image sizes that strain the bandwidth available over GigE 1000BASE-T
connections. This limits camera frame rates and can also limit the options for multi-camera network setups.
The solution is the Xpress feature found in the new Go-X PGE monochrome models. Xpress provides a lossless compression algorithm that reduces the size of
image data while enabling it to be fully reconstructed later. The amount of compression that can be achieved varies depending on the scene, but size
reductions of 30% are common. For reference, a 30% size reduction would translate to a frame rate increase of ~42%.
A matching decompression library, which is provided as part of the Xpress feature, can be used to reconstruct the original image on the host for processing by the
vision system application.
Why JAI?
The entire GO-X series line up is built for 24/7 use without defect or failure. JAI is so confident in its product line, it is one of the only camera manufacturers to provide a 6 year factory warranty on all new cameras. These cameras are designed to withstand 80G shock, 10G vibration, MTBF >190K hours, and thermal demands of typical industrial environments so they can keep critical inspection systems running - day and night, all year round.
And of course, the Go-X Series applies dust prevention measures to every model, including cleanroom assembly, internal seals around the sensor compartment, and a
screening process to ensure every camera shipped delivers the best possible image quality via a clean, dust-free optical path.
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