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Pen type optical pointing device

A pointing device and a type of technology, applied in the direction of instruments, electrical digital data processing, and input/output processes of data processing, etc., can solve problems such as poor sensitivity and decreased sensitivity of cusp movements

Inactive Publication Date: 2006-05-03
PERCEPTCOM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] However, in such conventional techniques, pressing image 3 It can be used in the inclined state shown in b, and can be used at the best irradiation angle, but in such as image 3 In the case of vertical use as shown in a, the light irradiation angle in the state perpendicular to the paper surface is almost parallel to the ground, so the sensitivity becomes extremely poor
Thus, in image 3 In the structure of , there is a disadvantage that the sensitivity of the sharp point action may decrease significantly with the tilt angle when using the mouse

Method used

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Embodiment Construction

[0019] refer to Figure 4 a, b The first embodiment of the present invention will be described.

[0020] 110 is the housing of the mouse, the outer diameter 115 is set to 7.4mm, and the inner diameter 114 is set to 6mm. As can be seen from the above, compared with the existing pen type optical mouse (outline diameter 17mm~21mm), the size is reduced a lot. The optical mouse sensor 111 is formed by attaching a semiconductor wafer of the optical mouse sensor on a thin flexible PCB, 112 is an optical lens, and 113 is a 0.6mm thick chip LED (chip LED).

[0021] exist Figure 4 In the embodiment of a, the angle 120 between the vertical axis of the pen type light mouse and the irradiation direction of the chip LED113 is about 35°, thereby, the angle with the horizontal axis of the mouse detection paper surface is 55° (90°-35° ). Therefore, even in the case of vertical use, it is possible to ensure a certain degree of irradiation angle to the paper surface (horizontal plane).

[0...

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Abstract

The present invention relates to the construction of a pen type optical pointing device. Provided is a pen-type optical pointing device, which irradiates light to a plane, detects an image of the plane, and analyzes the difference between the previous image and the current image, thereby detecting the direction and distance of movement, which is characterized in that it includes: a housing, Its lower part becomes smaller as it gets closer to the central axis, and has an opening and an illuminating device at its distal end. The vertical axis has an illumination angle of 15° to 60°. Utilizing the pen-type pointing device of the present invention as described above can provide a pen-type pointing device that is the same as a conventional writing tool by reducing the front end of the device while maintaining the lighting angle used in the conventional optical mouse.

Description

technical field [0001] The present invention relates to the construction of a pen-type optical pointing device. Background technique [0002] Generally, in various optical pointing devices including a pen-type optical mouse, the paper is illuminated by LED lighting, and the shape of the paper is received as an image through a lens, and the image is processed to detect the direction and distance of movement. [0003] At this time, on a white paper surface or a slightly uneven object, when the above-mentioned LED lighting is scanned at an angle of about 20° to the ground, shadows will be generated due to the slight unevenness, so that the mouse can be detected through a clearer image pattern. Therefore, when the light irradiated on the ground is about 20° from the ground, the image input to the ground of the optical mouse sensor is in the best state, so that the mouse has the best sensitivity. [0004] However, if figure 1 As shown in (a), in a pen-type optical mouse using a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/033
CPCG06F3/03545G06F3/0354
Inventor 金仁光
Owner PERCEPTCOM