Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

lighting device

A technology for lighting devices and diffusion areas, applied in lighting devices, components of lighting devices, display devices, etc.

Active Publication Date: 2021-03-19
DAI NIPPON PRINTING CO LTD
View PDF12 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The problem to be solved by the present invention is to provide an illuminating device capable of arbitrarily changing the illuminating method without complicating the structure of the optical system.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • lighting device
  • lighting device
  • lighting device

Examples

Experimental program
Comparison scheme
Effect test

no. 1 Embodiment approach

[0199] figure 1 It is a figure which shows the schematic structure of the illuminating device 1 which concerns on 1st Embodiment of this invention. figure 1 The illuminating device 1 includes an illuminating device 2 and an optical element 3. The irradiation device 2 has a laser light source 4 and a scanning unit 6 .

[0200] The laser light source 4 emits coherent light, that is, laser light. The laser light source 4 may be provided with a plurality of light source units having different emission wavelength bands, but may also be configured such that one or more light source units emitting laser light of a single wavelength band are provided. In this embodiment, an example in which one or more light source units that emit laser light in a single wavelength band are provided will be described.

[0201]The scanning unit 6 scans the plurality of laser beams emitted from the laser light source 4 on the optical element 3 . The scanning part 6 can move the laser light source 4 ...

no. 2 Embodiment approach

[0234] In the second embodiment described below, the timing of laser light from the laser light source 4 is controlled.

[0235] Figure 5 It is a figure which shows the schematic structure of the illuminating device 1 of 2nd Embodiment of this invention. Figure 5 The lighting device 1 of the lighting device 2 is provided with a timing control unit 5 inside the lighting device 2 and figure 1 different. also, Figure 5 The laser light source 4 has a plurality of light source units 7 that emit a plurality of coherent lights with different emission wavelength bands, that is, laser light. The plurality of light source units 7 may be provided independently, or may be a light source module in which a plurality of light source units 7 are arranged in a row on a common substrate. The laser light source 4 of the present embodiment only needs to have at least two light source units 7 having different emission wavelength bands, and two or more types of emission wavelength bands are ...

no. 3 Embodiment approach

[0256] In the third embodiment described below, the method of illuminating objects existing in the area to be illuminated 10 is changed.

[0257] Figure 10 is a diagram showing a schematic configuration of an illumination device 1 according to a third embodiment of the present invention, Figure 11 and Figure 12 is shown by Figure 10 A diagram of the lighting range illuminated by the lighting device 1. Figure 10 The lighting fixture 1 except figure 1 In addition to the configuration of the lighting device 1, an object detection unit 21 is further provided. The object detection unit 21 detects an object 22 present within a predetermined range 23 capable of being illuminated by the optical element 3 . That is, the object detection unit 21 detects that there is a Figure 10 The object 22 within the illumination range 23 of the laser illumination of the illuminated area 10 . The object 22 is a person, a vehicle, a living body, etc., and the object may be a moving objec...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

An object of the present invention is to arbitrarily change the illumination method of an arbitrary area within the illumination range without complicating the configuration of the optical system. The lighting device of the present invention includes a coherent light source (4) emitting coherent light and an optical element (3) diffusing the coherent light. The optical element (3) has: a first diffusion area (16), which diffuses coherent light to illuminate the first range (15); and a second diffusion area (18), which diffuses coherent light, and illuminates the first range (15) (17) displays the specified information.

Description

technical field [0001] The present invention relates to an illuminating device for illuminating a predetermined area using coherent light. Background technique [0002] There are known techniques for lighting only desired places by using cylindrical lenses, actuators, shades, and the like in lighting fixtures such as street lamps, indoor lighting, and cameras (see Patent Documents 1 and 2). [0003] prior art literature [0004] patent documents [0005] Patent Document 1: Japanese Patent No. 3586213 [0006] Patent Document 2: Japanese Patent No. 5293893 Contents of the invention [0007] The problem to be solved by the invention [0008] This prior art focuses on spot lighting relatively close to lighting fixtures, but cannot spot light far away. In addition, conventional lighting has only been focused on, so it is impossible to switch decorative lighting or lighting methods at any place at any timing. [0009] The problem to be solved by the present invention is t...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): F21S41/365F21S41/40F21S41/675F21S41/64F21S41/63F21S41/16F21S41/20G02B5/32B60Q1/00B60Q1/04B60Q1/14B60Q1/16B60Q1/24B60Q1/26G03H1/22G09F13/00F21V9/40
CPCB60Q2400/50G03H1/30G03B21/2033G03H1/2286G03H2001/2218G03H2001/2271G03H2001/2273G03H2001/2292G03H1/2249G03H1/32G03H2001/0232G03H2001/2231G03H2001/2234G03H2001/2284G03H2210/20G03H2222/18G03H2222/34G03H2225/31G03H2225/55G03H2227/03G03H2227/05G03H2270/22F21S41/16F21S41/285F21S41/645F21S41/675F21S41/635F21S41/40F21S41/365G03H2001/306B60Q1/549B60Q1/247B60Q1/0035B60Q1/14B60Q1/16
Inventor 仓重牧夫佐藤知枝石田一敏
Owner DAI NIPPON PRINTING CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com