Glass Lens
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United States of America Patent
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Issued Date -
Aug 1, 2013
app pub date -
Sep 8, 2011
filing date -
Sep 30, 2010
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
An object of the present invention is to provide a glass lens resistant to serious damage such as a crack during, for example, transport of a quadrangular glass lens such as a lens array formed by pressing molten glass or a compound lens obtained from the lens array. There are provided step portions 10a and 10c each having a reduced thickness on corners of a quadrangular contour, and hence, even when a corner portion is chipped or cracked during, for example, transport of a compound lens 10, it is possible to prevent the enlargement of the crack in the step portions 10a and 10c. Consequently, it is possible to suppress the occurrence of serious damage such as a crack which reaches the vicinity of optical surfaces 11d and 12d.
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