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Automotive Test Chart

Automotive Test Chart Instructions Operating Manual Automotive Test Chart PDF
This Automotive Test Chart Instrument are Certified with
certify
1 Years Warranty (Additional support period of 3 years)

This chart is designed for testing automative cameras or other significantly distorted cameras. This large chart is designed to be reflectively lit, and captured at a an optimal focus distance.

Options include:

  • Pre-distortion: Most automotive camera modules have significant fisheye distortion which can make it difficult to the outside of the image field. this chart has pincussion pre-distortion to approximately compensate for the barrel distiortion of the automotive camera module. The distortion coefficients that should be entered into the Imatest SFRplus settings window are [1.167 1.577]
  • Square Grid: 5x7 slanted square grid 
  • Substrate & ink type: Matte paper & ink can be used to reduce reflected light. This is critical for high levels of distiortion, otherwise specular reflections can ruin MTF measurements
  • Contrast levels: 10:1 contrast ratio, common for several automative testing standards
  • Color chart: a 20 patch color chart for color accuracy and bayer filter position verification
  • Bar to Bar height:  the maximum bar to bar height is 38.5 inches on the left and right side.  The minimum bar to bar height is 23.5 inches in the center.
  • Active Area: the extra-large chart be used for sensor sizes above 24 MP. This chart has an active area of 1500mm x 965mm and is printed on 1117 mm X 1524 mm inch paper

The active area of the chart includes white space above and below the top and bottom distortion bars. It is slightly larger than the printed area, which is bounded by the distortion bars on top and bottom. White space is included in active area because test images of the chart must include this white space in order to enable automated processing in SFRplus software.

12 Quality Inspection Processes

With 12 rigorous quality inspection processes in place, we ensure a high yield rate of up to 98% for batch processed precision parts.

DFM Analysis
DFM Analysis
Dimensional Tolerance
Dimensional Tolerance
Material Testing
Material Testing
CNC Machining
CNC Machining
FQC Detection
FQC Detection
SPC / CPK
SPC / CPK
Problem Found
Problem Found
Problem Solving
Problem Solving
OQC Detection
OQC Detection
Surface Treatment
Surface Treatment
Full Inspection
Full Inspection
Package
Package

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FAQs About SFRPlus Test Charts

Threenh Technology colorimeter is shipped with an operating instructions and video of English version.If you need an electronic version of the user manual, you can download it from our website download center

The repeatability is an important parameter for the accuracy of the colorimeter. Threenh Technology portable colorimeter for color measurements tandard deviation ΔE*ab is within 0.03 (Measurement condition: the average value of 30 measurements on the white board at an interval of 3s after calibration). Each colorimeter can pass the qualified inspection before leaving the factory to ensure it conforms to the standard of China Metrology Institute.

a. Right click "! USB Device" or "! SCI USB2Serial (COM6)", "Update Driver" -> "Install from a list or specific location (Advanced)" -> "Next" ->"Include this location in the search" -> "Browse", specify USB driver file path "CQCS3USB_Driver", click "Next". Then it will install successfully.

b.Detailed installation information please refers to "2.2 Installing USB Driver" in Color Quality Management System User Manual.doc.

a. If this phenomenon occurred, it means the battery power is not enough. You need to charge the battery.

b. When charge the battery, please insert the battery to the instrument, and plug in the adapter to charge the battery. After 5 minutes, the instrument can be turned on.

c. If the instrument still cannot be turned on after charging 5 minutes, you can pull out the adapter and re-plug in to check it. Or repeat this operation.

d. If the instrument still cannot be turned on after charging 5 minutes, you can turn off the colorimeter and turn on it again to check it. Or repeat this operation.

e. If you have tried all the methods above but the colorimeter still cannot be turned on, please change the battery.

Threenh Technology colorimeters provide a color deviation prompt function according to the Lab value, which can provide a reference for color matching. The handheld colorimeter can only indicate blacker, whiter, redder, greener, yellower or bluer, but it cannot provide accurate color formulas. Only with the help of a spectrophotometer and professional color matching software can fully realized automated color matching.

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