![ILLUMINATION DEVICE USING COHERENT LIGHT SOURCE](/ep/2013/07/17/EP2615363A1/abs.jpg.150x150.jpg)
基本信息:
- 专利标题: ILLUMINATION DEVICE USING COHERENT LIGHT SOURCE
- 专利标题(中):BELEUCHTUNGSVORRICHTUNG麻醉剂KOHÄRENTERLICHTQUELLE
- 申请号:EP10857013.6 申请日:2010-09-07
- 公开(公告)号:EP2615363A1 公开(公告)日:2013-07-17
- 发明人: KURASHIGE Makio
- 申请人: Dai Nippon Printing Co., Ltd.
- 申请人地址: 1-1, Ichigaya-kaga-cho 1-chome Shinjuku-ku Tokyo 162-8001 JP
- 专利权人: Dai Nippon Printing Co., Ltd.
- 当前专利权人: Dai Nippon Printing Co., Ltd.
- 当前专利权人地址: 1-1, Ichigaya-kaga-cho 1-chome Shinjuku-ku Tokyo 162-8001 JP
- 代理机构: Müller - Hoffmann & Partner
- 国际公布: WO2012032670 20120315
- 主分类号: F21S2/00
- IPC分类号: F21S2/00 ; G03H1/22 ; G03H1/32 ; F21Y101/02
摘要:
A laser beam (L50) generated by a laser light source (50) is reflected by a light beam scanning device (60), and irradiated onto a hologram recording medium (45). On the hologram recording medium (45), an image (35) of a scatter plate is recorded as a hologram by using reference light that converges on a scanning origin (B). The light beam scanning device (60) bends the laser beam (L50) at the scanning origin (B) and irradiates it onto the hologram recording medium (45). At this time, scanning is carried out by changing the bending mode of the laser beam with time so that the irradiation position of the bent laser beam (L60) on the hologram recording medium (45) changes with time. Regardless of the beam irradiation position, diffracted light (L45) from the hologram recording medium (45) reproduces the same reproduction image (35) of the scatter plate at the same position. An illumination spot in which speckles are reduced is formed on the light receiving surface (R) of an illuminating object (70) by the reproduction image (35) of the hologram.
摘要(中):
由激光光源(50)产生的激光束(L50)被光束扫描装置(60)反射,照射到全息图记录介质(45)上。 在全息记录介质(45)上,通过使用会聚在扫描原点(B)上的参照光将散射板的图像(35)记录为全息图。 光束扫描装置(60)将激光束(L50)在扫描原点(B)弯曲并将其照射到全息图记录介质(45)上。 此时,通过随时间改变激光束的弯曲模式来进行扫描,使得全息图记录介质(45)上的弯曲激光束(L60)的照射位置随时间变化。 不管光束照射位置,来自全息图记录介质(45)的衍射光(L45)在同一位置再现散射板的相同再现图像(35)。 通过全息图的再现图像(35)在照明对象(70)的光接收表面(R)上形成其中减少斑点的照明点。
公开/授权文献:
- EP2615363B1 ILLUMINATION DEVICE USING COHERENT LIGHT SOURCE 公开/授权日:2016-11-09
IPC结构图谱:
F | 机械工程;照明;加热;武器;爆破 |
--F21 | 照明 |
----F21S | 非便携式照明装置或其系统 |
------F21S2/00 | 照明装置的系统,没有包含在大组F21S4/00至F21S10/00中,例如积木式结构的 |