发明名称 |
Light-emitting chip, light-emitting device, print head and image forming apparatus |
摘要 |
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. |
申请公布号 |
US8786646(B2) |
申请公布日期 |
2014.07.22 |
申请号 |
US201113084058 |
申请日期 |
2011.04.11 |
申请人 |
Fuji Xerox Co., Ltd. |
发明人 |
Kinoshita Taku;Kondoh Yoshinao;Ohno Seiji |
分类号 |
B41J2/385;G03G15/04;H01L27/15;G03G15/32;B41J2/41;B41J2/45;G03G13/04;G01D15/06;G11B3/00;H01L29/205;H01L29/207;H01L33/00 |
主分类号 |
B41J2/385 |
代理机构 |
Oliff PLC |
代理人 |
Oliff PLC |
主权项 |
1. A light-emitting chip comprising:
a substrate; a plurality of 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 a plurality of 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 plurality of light-emitting elements through the plurality of connecting portions, wherein each of the plurality of light-emitting elements is isolated by a trench with a mesa structure, a longer direction of the light-emitting region being orthogonal to a shorter direction of the light-emitting region, the mesa structure including a forward mesa step extending in the longer direction of the light emitting region and the mesa structure including a reverse mesa step extending in the shorter direction of the light emitting region, and the light-up current supplying interconnection is arranged adjacent to the light-emitting region of each of the light-emitting elements, and has a reflecting surface reflecting light emitted with a spread so that the light is narrowed toward a direction perpendicular to the light-emitting region and in a direction away from the light-emitting elements. |
地址 |
Tokyo JP |