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Projection device and projection method

A technology of projection device and projection unit, which is applied in the direction of using projection device image reproducer, projection device, TV, etc., which can solve the problems of labor, time and trouble

Active Publication Date: 2015-06-24
SEIKO EPSON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, when a large number of documents are placed on the document table, or information is handwritten on the plate surface of the document table with a predetermined pen, etc., it is necessary to change the placement position of the documents in order to distinguish the enlarged and projected documents from other documents. Or transfer handwritten information to another area, which takes a lot of labor and time
In addition, when the size of the projected data is different, it is very troublesome to move the marker every time to indicate

Method used

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  • Projection device and projection method
  • Projection device and projection method
  • Projection device and projection method

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Embodiment approach

[0030] figure 1 It is an external view showing a mode in which a projector 100 as a projection device and a whiteboard 200 capable of writing with an oil pen or the like are integrated via a support 280 as a holding mechanism. A support 280 is attached to an upper portion of the whiteboard 200 , and the support 280 holds the projector 100 in a suspended manner.

[0031] The projector 100 has a function of widening and projecting a projected light beam by using a mirror, and enlarges and projects a projected image on one surface (display surface) of the whiteboard 200 . In addition, in this embodiment, although the projector 100 assumes the form which projects from the upper part of the whiteboard 200, it does not restrict to this. For example, a system in which projector 100 is fixed to the lower portion of whiteboard 200 and projects from the lower portion may also be assumed.

[0032] In addition, the whiteboard 200 is provided in a rectangular shape whose up-down directio...

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Abstract

A projector includes a projection section adapted to project an image on a white board, an imaging section adapted to take an image of the white board, and a control section adapted to set an imaging area representing a range, from which an image of an object attached to the white board is extracted, in accordance with a display state of the white board imaged by the imaging section, and then make an imaging area image indicating the imaging area be projected on the white board.

Description

technical field [0001] The invention relates to a projection device and a projection method. Background technique [0002] Conventionally, as shown in the following Patent Document 1, there is known a projection device that incorporates an imaging unit such as a digital camera that captures a document placed on a document table and projects the captured image onto a projection surface. [0003] In such a projection device, when it is desired to enlarge and project a document placed on a document table, the user needs to designate an area to be photographed. For example, the user designates a place to zoom in by arranging predetermined markers at two positions opposite to the desired position. [0004] Patent Document 1: Japanese Patent Laid-Open No. 2004-187140 [0005] However, when a large number of documents are placed on the document table, or information is handwritten on the plate surface of the document table with a predetermined pen, etc., it is necessary to change...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/74H04N9/31G03B21/00
CPCG03B21/142G03B21/14G03B21/26G03B21/28G03B2206/00
Inventor 西村直也
Owner SEIKO EPSON CORP