Preparation method of virtual keyboard and projection device used for implementing method

Abstract

The invention discloses a preparation method of a virtual keyboard. The preparation method of the virtual keyboard comprises the first step of arranging a projection device body and arranging a keyboard pattern projection unit inside the projection device, the second step of arranging a laser emitter, a lens and a keyboard pattern sheet inside the keyboard pattern projection unit, the third step of being electrified to work, arranging the projection device on a plane, and carrying out surface scanning on the keyboard pattern sheet through a visible laser beam emitted by the laser emitter. Therefore, a keyboard pattern is projected on the plane. The invention further discloses the projection device used for implementing the method. The preparation method of the virtual keyboard and the projection device used for implementing the method adopt the high integration design, integrate all modules and effectively achieve customization, so that the virtual keyboard meets the use requirements of special industries like the medical industry. Meanwhile, the virtual keyboard is customized in layout, is convenient to operate, has the advantage of being free of a solid structure compared with a solid keyboard, is not contaminated by bacteria easily, brings convenience to disinfection, and is free of dust and bacteria.

Description

technical field [0001] The invention relates to the technical field of electronic information, in particular to a method for preparing a virtual keyboard and a projection device for implementing the method. Background technique [0002] With the increasing maturity of electronic technology and the increasing variety of product forms, no matter it is a computer system or a consumer electronic product, it is necessary to be equipped with an input device to allow users to input required data or instructions. Among various input devices, the keyboard can be regarded as the most common and most frequently used input device. [0003] Generally speaking, the input keys of electronic devices can be divided into physical keyboards or virtual keyboards; the existing physical keyboards are all qwerty keyboards, and the keyboard layout does not change much. At present, the existing physical keyboards cannot fully meet the requirements for use in special industries. , such as the medica...

AI Technical Summary

Problems solved by technology

[0003] Generally speaking, the input keys of electronic devices can be divided into physical keyboards or virtual keyboards; the existing physical keyboards are all qwerty keyboards, and the keyboard layout does not change much. At present, the existing physical keyboards cannot fully meet the requirements for use in special industries. , such as the medical industry, its peripheral environment and medical equipment are required to be dust-free and sterile, and there are gaps between the keys in the physical keyboard. It is difficult to achieve disinfection and sterilization, which cannot meet the above performance requirements

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