公开(公告)号：EP2495948A4

公开(公告)日：2014-08-20

申请号：EP10826538

申请日：2010-10-15

Applicant: SHARP KK

Inventor： SUTO YASUHIRO ,  YOSHIMOTO MITSUHARU ,  OKADA TOMOHIKO ,  YAMANAKA HISASHI ,  FUKUTOME SHOHICHI ,  NAKANISHI KENJI

IPC: H04N1/04 ,  G03B27/54 ,  G03G15/00 ,  H04N1/028 ,  H04N1/10 ,  H04N1/193

CPC classification number: H04N1/0285 ,  G02B6/0031 ,  G02B6/0033 ,  G02B6/0045 ,  G02B6/0055 ,  G02B6/0073 ,  G02B6/009 ,  G03B27/542 ,  G03G15/04 ,  G03G15/602 ,  H04N1/00278 ,  H04N1/02845 ,  H04N1/02855 ,  H04N1/02865 ,  H04N1/1013 ,  H04N1/193 ,  H04N2201/0081 ,  H04N2201/0094 ,  H04N2201/02462 ,  H04N2201/0434

Abstract: 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 (71) and a reflective plate (73) are disposed sandwiching a slit (St) through which light reflected by a document MS passes and a light-guiding member (72) is disposed on the side of the LED array (71). The light-guiding member (72) includes a direct emission unit (77) disposed between an illumination range y centered on a document reading position and the LED array (71) and an indirect emission unit (78) disposed between the reflective plate (73) and the LED array (71), a light incidence face of the direct emission unit (77) and a light incidence face of the indirect emission unit (78) are disposed at mutually different position around the LED array (71), and the LED array (71) is disposed on a side of an interior angle formed by the light incidence faces.

Abstract translation: 诸如文档，同时抑制与简单结构的光损失被提供：能够稳定地照射被照射物的一种照明装置。 反射LED阵列（71）和板（73）被布置夹着狭缝（ST）通过由文件MS的推移和导光部件（72）反射的光被布置在所述发光二极管阵列的侧（71 ）。 所述导光部件（72）包含在照明范围之间设置的直接发射单元（77）Y上的文档读取位置和所述LED阵列（71）和所述反射板之间设置间接发射单元（78）（73居中 ）和LED阵列（71），直接发射单元（77）和间接发射单元的光入射面的光入射面（78）在所述LED阵列（71），围绕相互不同的位置布置，并且所述 LED阵列（71）被设置在由光入射面所成的内角的一侧。