Projecting system with touch control projecting images

Abstract

The invention discloses a projecting system with touch control projecting images, which comprises an image projecting device, an invisible light emitter and an invisible light sensor, wherein the image projecting device projects a projecting image onto a solid plane, the invisible light emitter generates invisible light parallel to the solid plane, a region of the invisible light plane corresponding to the projecting image of the solid plane forms a touch control region, and the invisible light sensor is communicated with the image projector, receives the invisible reflecting light reflected by one touch point receiving one target object touch of the touch control region and obtains sensing signals for representing the space coordinate position of the touch point, wherein the invisible light sensor provides the sensing signals to the image projecting device, the image projecting device judges and calculates the space coordinate position of the touch point according to the sensing signals and takes the proper control action according to the judgment and calculation results. The projecting system has the advantages that the operation intuition of users can be improved, the convenience is realized, and the friendly operation interface is provided.

Description

technical field [0001] The present invention relates to a projection system, in particular to a projection system with a touchable projection screen. Background technique [0002] With the continuous progress of the information age, projection systems with advantages such as high mobility and easy operation have been widely used in conference centers, offices, schools and homes, etc., especially for professionals who often need to participate in company meetings or go out to work. Professionals often rely on projection systems for important sales promotions or presentations at product launches. [0003] The known projection system usually cooperates with an electronic device that provides an image signal source, such as a portable computer or a portable communication device, for projection operation. However, during the projection process of the projection system, if the user wants to control the projection screen on the projection screen, The purpose of control can only be...

AI Technical Summary

Problems solved by technology

[0003] The known projection system usually cooperates with an electronic device that provides an image signal source, such as a portable computer or a portable communication device, for projection operation. However, during the projection process of the projection system, if the user wants to control the projection screen on the projection screen, The purpose of control can only be achieved by controlling the mouse and keyboard on the electronic device or touching the touch screen of the electronic device. Therefore, when the user makes a presentation next to the projection screen, in order to control the screen on the projection screen, it is necessary to repeatedly Move to the side of the electronic device to press the mouse, keyboard or operate the touch screen of the electronic device, which will cause inconvenience to the user

[0004] In order to solve the aforementioned problems, a new projection system has been developed so that users can directly manipulate the projection screen in front of the projection screen to achieve the purpose of interactive control. For example, users can hold a laser light pointer or put reflective sheets on their fingers And cooperate with a light source as a light source generating device, and directly control the projection screen in front of the projection screen, so that the projection system can calculate the spatial coordinate position of the light source generating device actually pointing to the projection screen by detecting the change of the light source on the projection screen, Then control the projection screen on the projection screen to make corresponding changes. However, because the user needs to hold an additional auxiliary device (such as a light source generating device) to make the projection system sense and manipulate the image screen on the projection screen, the operation still remains very inconvenient

[0005] In addition, when the above-mentioned projection system calculates the spatial coordinate position where the light source generating device actually points to the projection screen, in addition to the light source change caused by the light source generating device on the projection screen, the brightness of the projected image projected on the projection screen must also be considered. and / or color and the background color of the projection screen, the calculation method is extremely complex and imprecise, resulting in slow and imprecise response when the user interacts with the projection screen in front of the projection screen

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