Optical movement sensing device and its sensing method

Abstract

The utility model discloses an optical motion perception device and an optical motion perception process. The device comprises a light producing device emitting light, an optics contrail ball or a motion unit, and a sensitization unit for light perception and image processing. The process comprises the light producing device emitting the light and the optics contrail ball or the motion unit which receives the emission light. As the optics contrail ball or the motion unit rolls, the texture information is loaded to the transmitting lights which are received and processed by the light perception unit to output the signal. The output signal is converted into the identification control signal controlling the movement of the pointer. By the appliance of the device and the process, movable equipments or portable electronic equipments can more compact size and lighter weight. Additionally, the transmission way of the initiative luminescence can increase the perception efficiency of the perception unit on the light.

Description

Technical field [0001] The present invention relates to optical sensing technology, in particular to optical motion sensing and processing technology. Background technique [0002] Generally, a general optical motion sensing device includes a light emitting device, a working surface for light reflection, and a photosensitive device. Figure 1 shows a schematic structural diagram of an optical motion sensing device in the prior art. As shown in Figure 1, the optical motion sensing device has: a light-emitting device 81, which contains a light source for emitting light to the working surface; and a light-sensing device 82 , Used to detect feature changes of the work surface 85 (such as a mouse pad or a desktop). Wherein, the optical motion sensing device may also include a first lens 86 and a second lens 87, and the symbol "83" represents the incident light emitted by the light emitting device 81, and the symbol "84" represents the light emitted to the photosensitive device through ...

AI Technical Summary

Problems solved by technology

However, referring to FIG. 2, on the other hand, setting the angle between the incident light 96 and the reflected light 95 as an obtuse angle can effectively reduce the thickness of the mobile phone, but this will affect the light reflection effect, that is, Said, there is no guarantee that enough reflected light hits the photosensitive device 92

It should be pointed out that the optical motion sensing device realizes the sensing function by means of the reflected light generated by the reflection of the incident light by the optical trackball. efficiency

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