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Air projection keyboard

A technology of projection keyboard and air, applied in optics, instruments, electrical and digital data processing, etc., can solve problems such as difficult to reach, difficult to image on non-planar platforms, etc.

Inactive Publication Date: 2013-05-22
刘昱
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Difficult to image on non-planar platforms
[0006] 2. It is difficult to achieve in some special display states or harsh positions, such as: hanging display keyboard, both front and back can be used, etc.

Method used

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Examples

Experimental program
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Embodiment Construction

[0023] Air projection keyboard device structure such as figure 1 and figure 2 : The air screen generator 1 is in the middle of the whole device, the status indicator light 21 and the position indicator light 22 are in the middle of the device, the projector 3 is in the middle of the device, and the A side and the B side of the device have a first infrared camera 41 and a second infrared camera 41 respectively. The infrared camera 42 is equipped with an infrared detection system 4, a processing system 5 and a virtual keyboard 6.

[0024] The main working functions of the infrared camera system are as follows: image 3 , the working steps of the infrared camera system are: the first infrared camera 41 and the second infrared camera 42 are respectively placed on both sides of the casing and take pictures simultaneously, and the A side and the B side record the infrared light information of the virtual keyboard 6 in the air screen; then The light information is transmitted to ...

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PUM

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Abstract

The invention discloses an air projection keyboard which comprises an air screen generator, a projection system, an infrared camera system, a processing system and an indicator lamp. The air projection keyboard operates according to the main principle: the air screen is an air wall formed by transparent or semitransparent gas (such as vapor); the projection system projects a virtual image of a keyboard to the air wall; when fingers operate the virtual keyboard in a virtual image area, the infrared camera system acquires sensed information of infrared radiation change in the area; the processing system receives the sensed information and calculates push content information of the fingers and transmits the information to an external output device. The virtual keyboard is projected to the air screen with no need of any object or plane. The virtual keyboard is available for both sides and has the artistic effect of stereo projection.

Description

technical field [0001] The invention relates to a virtual keyboard, in particular to a virtual keyboard projected on an air screen. Background technique [0002] Existing electronic products, such as desktop computers, notebook computers, mobile phones, test instruments, etc., usually use physical keyboards in the process of inputting data or other purposes. The disadvantage of traditional keyboards is that they are too bulky and difficult to carry and place. Moreover, the physical keyboard is easy to absorb dust and is not easy to clean, and it is easy to be damaged if it is overused. [0003] In order to meet the needs of virtual stereoscopic projection, a virtual laser keyboard (Virtual Laser Keyboard) has emerged. US Patent No. 6,650,318 proposes a virtual keyboard, which mainly includes a laser source, a sensor and a processing unit. The laser emitted by the laser source forms a virtual image area to form a button image on a flat platform (such as a table, a wooden b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/042G03B21/56
Inventor 刘昱
Owner 刘昱
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