Light Emitting Unit, Lighting Apparatus and Image Reading Apparatus

Number of patents in Portfolio can not be more than 2000

United States of America Patent

APP PUB NO 20090168126A1
SERIAL NO

12224281

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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There are provided a light emitting unit in which temperature increase due to heat generated in a light emitting element is suppressed to enhance light emission efficiency, a linear illumination device in which the light emitting unit is incorporated, and a contact-type image sensor and an image scanner in which the linear illumination device is incorporated. A lead frame 23 in the light emitting unit has an extension 29. The extension 29 is folded along a case 12, and a plate-shaped heat dissipater 30 is connected to the extension 29. The connection is carried out by forming holes 29a and 30a in the extension 29 and the heat dissipater 30, respectively, and engaging a protrusion 31 formed on the case 12 in the holes 29a and 30a. The extension 29 thus comes into tight contact with the heat dissipater 30 and is fixed thereto. The heat dissipater 30 is made of a good thermally conductive material, such as copper, and formed separately from the lead frame 23.

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Patent Owner(s)

Patent OwnerAddress
NICHIA CORPORATION491-100 OKA KAMINAKA-CHO ANAN-SHI TOKUSHIMA 774-8601
NIPPON SHEET GLASS COMPANY LIMITED5-27 MITA 3-CHOME MINATO-KU TOKYO 108-6321

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Nemoto, Hiroyuki Tokyo , JP 98 845
Saito, Tomihisa Tokyo , JP 20 311
Sumitani, Naofumi Tokushima , JP 25 270
Wakisaka, Masahide Tokyo , JP 14 182

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