发明名称 |
ILLUMINATING DEVICE, IMAGE READING APPARATUS INCLUDING THE ILLUMINATING DEVICE, AND IMAGE FORMING APPARATUS INCLUDING THE IMAGE READING APPARATUS |
摘要 |
An illuminating device capable of stably illuminating an irradiated object such as a document while suppressing light loss with a simply structure is provided.;An LED array and a reflective plate are disposed sandwiching a slit (St) through which light reflected by a document MS passes and a light-guiding member is disposed on the side of the LED array. The light-guiding member includes a direct emission unit disposed between an illumination range y centered on a document reading position and the LED array and an indirect emission unit disposed between the reflective plate and the LED array, a light incidence face of the direct emission unit and a light incidence face of the indirect emission unit are disposed at mutually different position around the LED array, and the LED array is disposed on a side of an interior angle formed by the light incidence faces. |
申请公布号 |
US2015369998(A1) |
申请公布日期 |
2015.12.24 |
申请号 |
US201514750919 |
申请日期 |
2015.06.25 |
申请人 |
SHARP KABUSHIKI KAISHA |
发明人 |
SUTO Yasuhiro;YOSHIMOTO Mitsuharu;OKADA Tomohiko;YAMANAKA Hisashi;FUKUTOME Shohichi;NAKANISHI Kenji |
分类号 |
F21V8/00;H04N1/193;H04N1/10;H04N1/00;H04N1/028 |
主分类号 |
F21V8/00 |
代理机构 |
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代理人 |
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主权项 |
1. An illuminating device comprising:
a light-emitting element; a substrate on which the light-emitting element is mounted; a reflective member; and a light-guiding member—, wherein the light-emitting element and the reflective member are disposed to sandwich a path through which light reflected by an irradiated object passes, and the light-guiding member is disposed on a side of the light-emitting element relative to the path, the substrate comprises a white portion on a surface of the substrate, and the white portion is provided at least between the light-emitting element and the reflective member, and reflects the light emitted from the light-emitting element. |
地址 |
Osaka JP |