Light-emitting chip, light-emitting device, print head and image forming apparatus
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United States of America Patent
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Jul 22, 2014
Grant Date -
May 17, 2012
app pub date -
Apr 11, 2011
filing date -
Nov 12, 2010
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Abstract
A light-emitting chip includes: a substrate; plural light-emitting elements arrayed in line on the substrate, each of the light-emitting elements including a light-emitting region having a length in an array direction of the array different from a length in a direction orthogonal to the array direction; and a light-up current supplying interconnection including plural connecting portions, each of the connecting portions being provided on the light-emitting region of a corresponding one of the light-emitting elements in a shorter direction of the light-emitting region either the array direction or the direction orthogonal to the array direction, each of the connecting portions being connected to an electrode provided on the light-emitting region, the light-up current supplying interconnection supplying a current for lighting up to the plural light-emitting elements through the plural connecting portions.
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