CCD-world: Pleas help TASS

[Tom Droege]

The following was posted to CCD-world:

George,

Thanks for the comments.  I am already into the window fog problem.  So I
am heating the outside of the camera.  I may have made a mistake in putting
the CCD pretty close to the window.  About 7 mm.  I am struggling now with
the decision to change the spacing to move the CCD further away from the
window.  I made it as close as possible so that it would be easier to get
to a focus.  I have focus room to spare now that I have the lenses.  Any
comments?

Tom 

At 05:17 PM 5/7/00 -0700, you wrote:
>The following was posted to CCD-world:
>
>Hello - Regarding moisture; remember that as the internal atmosphere cools, 
>it contracts.. thus it will inhale whatever is near the leak points, such 
>as moisture. So, allow extra desiccant or provide a dry gas flush. 
>Regarding reaching temp; if you can chill the exterior of the camera, the 
>interior should cool that much lower, maybe even a 1:1 improvement. The 
>gating factor would be ambient dew point (window fog), esp. in humid 
>conditions.
>
>Best Regards,
>George Tylinski
>Chair, Portland Area SolidWorks User Group
>George Tylinski Mechanical Design & Analysis
>voice/fax: 503-515-3338/3339
>
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