Optical mouse with cursor rotating ability, instrument, portable detection device, and method thereof
A photodetector, rotational motion technology, applied in the input/output process of instruments, data processing, electrical digital data processing and other directions, can solve the problems affecting the positioning accuracy of navigators, and achieve the effect of high sensitivity
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no. 1 example
[0313] The first embodiment represents a navigator using a single light source and its method of use, the navigator being able to extract a rotational motion vector from a generalized motion vector. Navigator like this, in figure 2 There are introductions in Figures A to E. The method of extracting the rotational motion (vector) from the generalized motion (vector) used by it is explained in the text of this embodiment, and when explained, it is also borrowed Figure 3A and 3B Graphical explanation.
[0314] let's see now Figure 3A , the figure shows three groups formed by tracked objects on the desktop, these three groups are: 301A, 301B, 301C, 301D; 302A, 302B, 302C, 302D; and 303A, 303B, 303C, 303D. For the convenience of explanation, the three groups (the tracked objects) are surrounded by dashed circles (Dashed circles), so the three groups can be regarded as composite point-objects (Composite point-objects) . To explain more clearly, these dots representing grou...
no. 2 example
[0341] The second embodiment needs to refer to Figures 4A to 4E come to find out. Such as Figure 4E As shown, navigator 402 contains multiple light sources ( 401 , 405 , and 406 ) surrounded by an aperture 404 . Figure 4A The dashed rectangular block 407 shown above is an auxiliary control device of the navigator of the present invention, which can be used to start a function or do similar work. Under preferred implementation conditions, the plurality of light sources included in the present invention have different optical properties (eg, color, or more specifically, wavelength) from each other. The object to be tracked 408 is placed on the table and is in the area within the perimeter of the hole 404 . These light sources 401, 405, and 406 illuminate the tracked object 408, and the light reflected (from the tracked object 408) will hit the detector 403, and the detector 403 will have appropriate sensitivity to the characteristics of the above-mentioned light sources ( ...
no. 3 example
[0349] In this embodiment, the hue (Color tone such as: CIE1931 Color Index or similar index) of the shadow cast by the object on the desktop to the desktop will be used to calculate the rotation vector. It should be noted that the second embodiment is different from the third embodiment in terms of design concept of components. In the second embodiment, we hope to remove the non-linear term in the motion vector by polychromatic light and color image detector. In fact, some non-linear items can be used to detect shadows or some special actions of objects, and the detection results can ultimately improve the performance of the components of the present invention.
[0350] Such as Figure 6A As shown, the basic structure of the components used in this embodiment ( Figure 6A Only the part showing the pore structure) is the same as the second embodiment (such as Figure 4A ) The basic structure of the components used is similar. Figure 6A A plurality of color light sources (...
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