Multi-touch infrared positioning device and method
A positioning device and positioning method technology, applied in the input/output process of data processing, instruments, electrical digital data processing and other directions, can solve problems such as inability to achieve multi-point scanning, and achieve improved touch fluency experience, small changes, and improved The effect of resolving power
Inactive Publication Date: 2012-12-26
GUANGDONG VTRON TECH CO LTD
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Problems solved by technology
[0005] The first object of the present invention is to provide a multi-touch infrared positioning device to solve the technical problem that the existing infrared positioning device cannot realize multi-point scanning
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[0037] The present invention will be described in further detail below with reference to the accompanying drawings and examples, but the embodiments of the present invention are not limited thereto.
[0038] see figure 1 As shown, it is a structural schematic diagram of an infrared positioning device capable of realizing multi-point touch. Including, a control circuit 101, an array of infrared emitting tubes 102 installed around the touch screen and corresponding to each other, an array of infrared receiving tubes 103, a concave lens or a convex lens 104 installed directly in front of the infrared emitting tubes, wherein, if a convex lens is used, the infrared emitting tubes Placed within the range from the convex lens to the focal point, each concave lens or convex lens corresponds to an infrared emitting tube, the optical axis of the concave lens or convex lens coincides with the optical axis of the infrared emitting tube and the receiving tube, and the infrared light emitte...
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The invention relates to infrared positioning technology and infrared positioning equipment, in particular to a multi-touch infrared positioning device and a multi-touch infrared positioning method. The multi-touch infrared positioning device comprises more than one pair of infrared ray transmitting tube and infrared ray receiving tube corresponding to each other, which is arranged around a touch screen, a control circuit used for controlling the infrared ray transmitting tube and infrared ray receiving tube, and a non-planar mirror arranged in front of each infrared ray transmitting tube. A concave lens or a convex lens is arranged in front of the infrared ray transmitting tube so that the infrared ray emitted by the infrared ray transmitting tube penetrates the concave lens or the convex lens to form a large-angle divergent sector-shaped light source face and is received by a plurality of infrared ray receiving tubes. Therefore, the emitting angle of the infrared ray transmitting tube is greatly enlarged; the light is more uniform than the infrared ray directly emitted by the infrared ray transmitting tube; the light intensity of the light which can be received through oblique scanning is also strengthened; and the additional power consumption of the whole touch device is unnecessary.
Description
technical field [0001] The invention relates to an infrared positioning technology and equipment, in particular to a multi-touch infrared positioning device and method. Background technique [0002] The infrared touch screen has a simple structure, is not subject to current, voltage and static interference, and is suitable for working under certain harsh environmental conditions, and has high stability, high resolution, easy installation, and can be used in computers of all grades. A piece of toughened glass can achieve many advantages such as dustproof, anti-riot, waterproof, etc., which makes the infrared touch screen stand out and become the mainstream product in the touch screen market. [0003] However, the infrared emitting and infrared receiving elements of the existing infrared touch device form a transmitting and receiving pair in a one-to-one correspondence, and form a mutually perpendicular transmitting and receiving array along the edge of the touch screen surfac...
Claims
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IPC IPC(8): G06F3/042
Inventor 徐响林钟杰婷
Owner GUANGDONG VTRON TECH CO LTD