Method of providing a shaped body made of glass or glass ceramics
AssigneeCarl Zeiss Sports Optics GmbH
InventorsHexin Wang, Kurt Becker, Lutz Autschbach
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Abstract
A method for producing a shaped body (10) made of glass or glass ceramics comprises the steps of: (a) placing at least two glass blanks (12a, 12b) side by side on a shaped surface (14) of a temperature-resistant sagging mold (13); (b) sagging the glass blanks (12a, 12b) onto the shaped surface (14) by heating the sagging mold (13) and the glass blanks (12a, 12b); (c) attaching the sagged glass blanks (10a, 10b) to each other in order to form the shaped body (10); and (d) lifting the shaped body (10) from the sagging mold (13). A shaped body (10) comprises at least two glass blanks (10a, 10b) attached side by side and formed by sagging.
Claims13
A method for producing a shaped body made of glass or glass ceramics, comprising the steps of:
- (a) placing at least two glass blanks side by side at adjacent edges thereof on a shaped surface of a temperature-resistant sagging mold;
- (b) sagging the glass blanks onto the shaped surface by heating the sagging mold and the glass blanks;
- (c) attaching the sagged glass blanks to each other in order to form the shaped body with a tolerance for surface form deviation of less than 100 μm and a slope tolerance of less than 5 minutes at a slope reference length of 1±0.1 mm;
- and
- (d) lifting the shaped body from the sagging mold.
A method for producing a shaped body made of glass or glass ceramics, comprising the steps of:
- (a) placing at least two glass blanks side by side in an abutting relationship on a shaped surface of a temperature-resistant sagging mold;
- (b) sagging the glass blanks onto the shaped surface by heating the sagging mold and the glass blanks;
- (c) attaching the sagged glass blanks to each other in order to form the shaped body;
- and
- (d) lifting the shaped body from the sagging mold.
Dependencies are inferred from the claim text.