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For use at greater distances |
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Our 6204 is used for the same purposes as the
smaller 6202, but this
mirror provides a much larger field of view. This is an
advantage when you are autoreflecting or autocollimating at greater
distances. Its circular front surface
mirror is 4" (101.6mm) in diameter. Its reflecting surface
is flat to within ¼ wavelength of light over any area not greater than 50 mm
in diameter. Three magnetic feet are cemented to the back of the
mirror (see photo below). Their contact surfaces are ground parallel to the
mirror surface to within 3 arcseconds. You may wish to
look at the other mirrors
we have on this website.
At right: The back side of the 6204
showing the magnetic mount. |
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Mirror face: 4" (101.6mm) diameter |
Parallelism, front-to-back: Within 3 arcseconds |
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