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Light projection device

A technology of light projection and projection position, which is applied to display devices, lighting devices, light sources, etc., and can solve problems such as inability to use an item search system and trouble for users

Active Publication Date: 2010-11-24
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] When the display unit of a portable terminal is used as a unit for displaying location information, it is necessary to carry the portable terminal to search for items, which is very troublesome for the user.
In addition, when the position of the portable terminal itself is unknown, there is a problem that the item search system cannot be used at all
In addition, when a fixed display terminal is used as a unit for displaying location information, the user needs to move to a place where the display of the fixed display terminal can be seen, which is also troublesome for the user.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0034] Figure 15 A schematic configuration of the light projection device 100 according to the embodiment of the present invention is shown. The light projection device 100 includes a device main body 101 , a diffused light source 102 , a voice sensor 103 , an imaging sensor 104 , a control unit 105 , a storage unit 106 , an input / output interface unit 107 , a movable projection unit 110 , and a position detection sensor 120 .

[0035] Figure 1 to Figure 3 It is a figure which shows the schematic structure and operation|movement of the light projection apparatus 100 which concerns on embodiment of this invention.

[0036] The device main body 101 of the light projection device 100 is installed, for example, on a ceiling in a room. The light projection device 100 has a movable projection unit 110 provided on the device main body 101, and can freely set a projection area indoors. In addition, the light projection device 100 can recognize the voice uttered by the pointer 201...

Embodiment approach 2

[0084] Next, light projection devices according to other embodiments of the present invention will be described below with reference to the drawings.

[0085] Figure 7 It is a schematic diagram showing the configuration and operation of the optical system of the light projection device 200 according to Embodiment 2 of the present invention. The same component numbers as those in Embodiment 1 are assigned the same component numbers, and description thereof will be omitted.

[0086] The light projection device 200 is configured such that the laser light sources 1r, 1g, and 1b are separated from the movable projection unit 91 (movable unit), and these two components are connected by a multimode fiber 61 . The red, green, and blue laser beams emitted from the laser light sources 1r, 1g, and 1b are introduced into a multimode optical fiber 61 (light guide member) and transmitted. The multimode optical fiber 61 transmits the laser light to the illumination optical system 21 insid...

Embodiment approach 3

[0098] Next, light projection devices according to other embodiments of the present invention will be described below with reference to the drawings.

[0099] Figure 8 (A) is a schematic diagram showing the configuration and operation of the optical system of the light projection device 300 according to Embodiment 3 of the present invention. The same component numbers as those in Embodiments 1 and 2 are assigned the same component numbers, and descriptions thereof are omitted.

[0100] The light projection device 300 includes a portable light projection device 310 (small light projection unit) and a movable stage stand 350 for controlling the projection direction. The portable light projection device 310 is detachable from the movable table 350 , and the portable light projection device 310 can operate as a projection device even in a separate state separated from the movable table 350 .

[0101] The movable stand 350 has a charging stand 301 for fixing the portable light p...

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PUM

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Abstract

Provided is a light projection device comprising: a moving projection unit capable of projecting light for illumination or information display and moving the projection position; a position detection unit for detecting the position of a search target article instructed by an instructor; a field detection unit for detecting the field of view of the instructor; and a control unit for controlling the moving projection unit on the basis of the position of the search target article which is detected by the position detection unit and the field of view of the instructor which is detected by the field detection unit so as to illuminate the search target article directly or to project the guide information for guiding the instructor to the search target article into the field of view of the instructor.

Description

technical field [0001] The invention relates to a light projection device which projects light for illumination or information display. Background technique [0002] When you don't know which room and where the item placed in the house is, sometimes you look around, but you can't find the item. Therefore, a search system has been developed that shows a pointer where an item whose location is unknown is located. [0003] For example, Japanese Patent Laid-Open Publication No. Hei 11-311680 proposes a device in which a notification terminal having a receiving function is mounted on an article. In this device, the notifying terminal receives radio waves and emits sound or light to notify the location of the article. [0004] However, the above-mentioned prior art in which a notification terminal is mounted on each article requires a power source or the like for activating the notification terminal itself. Therefore, the size of the notification terminal is large and it also c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09F13/00F21S2/00G09G5/00H04N5/74
CPCH04N9/3197H05B37/0227H05B37/0236H05B37/029H04N9/3194H04N9/3129H04N9/3185Y02B20/44H04N9/3161H05B47/12H05B47/155Y02B20/40H05B47/115H05B47/125
Inventor 水岛哲郎山本和久黑塚章山本格也杉山圭司中山健二
Owner PANASONIC CORP
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