US 8,911,098 B2Granted

Substrate for a mirror support with reduced weight as well as mirror with reduced-weight mirror support

AssigneeSchott AG

InventorsMartin Schaeffer, Thorsten Doehring, Volker Seibert, Thomas Westerhoff, Hans-Joachim Nowak

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Abstract

In a substrate, particularly in a substrate for a mirror support, in which recesses are introduced in one surface, preferably in the back side of the substrate, as a result of which, in particular, bridging pieces are defined between the recesses, in order to achieve the situation that despite a reduced weight, a high rigidity still remains, which means only a slight sagging after its correct uptake in a holding device provided for it, it is provided that at least one first portion of the bridging pieces has a width that is different than a second portion of the bridging pieces.

Claims4

Dependent claims

A reduced weight mirror support substrate, comprising:

a plurality of hexagonal recesses in a back surface of the substrate;
a first bridging piece formed between each recess of the plurality of hexagonal recesses;
a plurality of circular recesses in the back surface defining holding uptakes;
a second bridging piece that surrounds each recess of the plurality of circular recesses, the second bridging pieces having a width that is different than a width of the first bridging pieces;
and
a plurality of partial hexagonal recesses in the back surface, the plurality of partial hexagonal recesses surrounding each of the plurality of circular recesses and being disposed between the plurality of circular recesses and the plurality of hexagonal recesses.

3 more elements

Dependencies are inferred from the claim text.