ADJUSTABLE REFERENCE MIRROR -- D-615 PLANE PARALLEL ADJUSTABLE REFERENCE MIRROR -- D-616 The mirrors are gripped firmly, but without distortion, in steel mounts which rest on three stainless steel feet.  Two of three feet are designed to ride against a straight edge when checking flatness or straightness of surfaces.   Displacement of the leading foot up or down is approximatelly 0.000 1 inch and reflects an angular change of one arc second.  The mirror may be used in either vertical or horizontal position without affecting this adjustability accuracy or stability. Model D-615 Adjustable Reference Mirrors are identical to the Model D616, except that they are front surface mirrors only -- the back surface is not polished.   The single surface provides an extremely fine adjustable reference mirror where a self-checking true 90° is not required.   A Model D-616 may be used to set the true 90° angle, however, and the Model D-615 set parallel to it. Applications: Both models have been very useful in determining minute angular changes in gyro rate tables, turntables, rotary tables, and other mechanisms which move relative to a fixed surface. Features: Flatness is compatible with highly sensitive autocollimators, Can be positioned vertically and horizontally with equal stability, Fine adjustment screws for fast and precise adjustment, Compact --  for use in tight quarters, Solid steel mount for stability, Available with a D-291 and D-292.

Detailed Specifications for D-615 and D-616:

Davidson Optronics, Inc.
Phone: (626) 962-5181
Fax: (626) 962-5188
E-mail: sales@davidsonoptronics.com

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Most recently updated: November 23, 2007