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Projection apparatus and control method thereof, and storage medium

A technology of a projection device and a control method, which is applied in the direction of using projection device image reproducers, picture duplicators, color TV components, etc., and can solve problems such as perception of invisible images

Active Publication Date: 2018-04-10
CANON KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, if a projector capable of projecting both visible and invisible images is turned off in a display mode that projects invisible images, the projector may start up in the display mode that was set immediately before being turned off at the next power-on
If the projection of the invisible image starts after startup in this way, the user cannot visually perceive the invisible image without using a night vision device such as NVG, and cannot perform setting operations at startup, or confirm the device operating status, etc.

Method used

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  • Projection apparatus and control method thereof, and storage medium
  • Projection apparatus and control method thereof, and storage medium
  • Projection apparatus and control method thereof, and storage medium

Examples

Experimental program
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no. 1 example

[0023] Embodiments in which the projection apparatus according to the present invention is applied to, for example, a liquid crystal projector for projecting still images or moving images will be described below.

[0024]

[0025] will refer to figure 1 An outline of the configuration and functions of the projection device according to the embodiment of the present invention is described.

[0026] The liquid crystal projector according to the present embodiment controls the light transmittance of the liquid crystal element according to the image to be displayed on the projection surface, and projects the light from the light source passing through the liquid crystal element on the screen, thereby presenting an image to the user.

[0027] refer to figure 1 , the liquid crystal projector 100 according to the present embodiment includes a CPU 110 , a ROM 111 , a RAM 112 , an operation unit 113 , a visible image input unit 130 , an invisible image input unit 192 , and an image ...

no. 2 example

[0094] Next will refer to Figure 8 to Figure 10 The operation of the liquid crystal projector according to the present embodiment after power-on will be described.

[0095] Note that the configuration and basic operations of the liquid crystal projector 800 according to this embodiment are the same as figure 1 The same, and as will be described later, the internal configuration of the mode management unit 894 is different. The same components are denoted by the same reference numerals, and descriptions thereof will be omitted. The same applies to the case where the DLP projector 500 is applied instead of the liquid crystal projector 800 .

[0096] will refer to Figure 9 The configuration and functions of the schema management unit 894 are described.

[0097] The mode management unit 894 includes a timer unit 8944 in addition to the mode storage unit 8941 , the mode determination unit 8942 , and the mode control unit 8943 .

[0098] The mode management unit 894 causes th...

no. 3 example

[0116] Next will refer to Figure 11 and Figure 12 The operation of the liquid crystal projector 1100 according to the present embodiment after power-on will be described.

[0117] Note that the configuration and basic operations of the liquid crystal projector 1100 according to the present embodiment are the same as figure 1 is the same as in , and a setting state determination unit 1194 (described later) is added. The same components are denoted by the same reference numerals, and descriptions thereof will be omitted. The same applies to the case where the DLP projector 500 is applied instead of the liquid crystal projector 1100 .

[0118] The mode management unit 194 causes the mode storage unit 1941 , the mode determination unit 1942 , and the mode control unit 1943 to perform startup processing at power-on and display mode setting processing according to the display mode.

[0119] The mode storage unit 1941 stores the display mode set at the time of last shutdown. T...

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Abstract

The invention provides a projection apparatus and a control method thereof and a storage medium. A projection apparatus comprises a projection control unit which controls a projection unit to projectat least one of visible light and invisible light, and a control unit which controls a projection state of the projection unit. If the state at the time of shutdown of the apparatus is a state in which the visible light is projected, the control unit controls to set the state in which the visible light is projected at a start of next activation, and if the state at the time of shutdown of the apparatus is a state in which only the invisible light is projected, the control unit controls to set a projection state including at least the visible light at the start of next activation.

Description

technical field [0001] The present invention relates to a projection device, a control method of the projection device and a storage medium. Background technique [0002] Conventionally, a projection device (projector) capable of switching between a display mode in which a visible image is projected and a display mode in which an invisible image such as an infrared image is projected is provided. In the mode of projecting invisible images, the user can visually perceive infrared images projected on the screen using a night vision device such as NVG (Night Vision Goggle) (see Japanese Patent Laid-Open No. 2013-524662 and Japanese Patent Application Laid-Open No. 10-78550). [0003] However, if a projector capable of projecting a visible image and an invisible image is turned off in a display mode projecting an invisible image, the projector may start up in the display mode set immediately before turning off at the next power-on. If the projection of the invisible image star...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N9/31
CPCH04N9/3155H04N9/3164H04N9/312H04N9/3158
Inventor 八木政哉
Owner CANON KK