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- These lights get hot and can damage or burn surfaces if left stationary and on for over 20-secs20secs. This is not an issue during normal imaging operations and will not heat the core surface at all. BUT Bus during calibration process when the lights are stationary you must be aware of the length of time the lights are on. You can use the manual power switch to turn the lights on and off or the buttons in the software. Use the heat resistant grey silicone mat for the shading and pixel corrections. Do not use the plastic Gray card but use the cardboard instead.. (testing needs to be completed on which color silicone mat is best to use)
- Never look at the leds LEDs directly! . Even the reflected light can be painful! . When working under the track make sure that the power is off.
- NOTE: if you are concerned with the heat dissipation, you can use our FLIR cameras to confirm that everything the temperature is ok.
Glossary of terms:
Gain: a digital camera setting that controls the amplification of the signal from the camera sensor. It should be noted that this amplifies the whole signal, including any associated background noise.
Gamma: a digital camera setting that controls the grayscale reproduced on the image. An image gamma of unity (Figures 3a - 3bFig. ?) indicates that the camera sensor is precisely reproducing the object gray scale (linear response). A gamma setting much greater than unity results in a silhouetted image in black and white.
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- Color Standard values vary based on the standard and the manufacturer of the standard. Verify the values of the MacBeth Color Standard before starting. Check the grayscale card to determine what the percentage of gray. The target calibration values will vary based on the percentage of gray . Target because the target values depend on the percent grayscale card. Max RGB value is 255. If using a 50% grayscale card, target red and green value is 127, a 25% grayscale card target value is 64, etc. For our QP Card 101 v4 card, the RGB values are 235, 111, and 80.
- Set camera f/stop to 22 (this 16.
- If you haven’t set the camera’s height, now is the time to do so! See the section Camera Height Adjustment at the end.
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