Optical switch array and optical path device with the functions of projection and camera shooting
An optical switch array and optical switch technology, applied in optics, optical components, camera body, etc., can solve the problems of short life of color wheel motor, poor contrast of display screen, expensive CCD, etc., to achieve good screen contrast and low cost The effect of reduction and function expansion
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Embodiment 1
[0026] Embodiment 1 Embodiment of "T" shaped optical switch
[0027] Please refer to figure 1 , 2 , 3, Figure 1 The structure and function of the "T" shaped optical switch are shown. It has three ports. Port A and port B are on the same straight line. The direction of port C is perpendicular to the straight line where port A and port B are located. This optical switch has optical path conversion Function, the light entering from port A can be controlled to choose to exit from port B or port C; figure 2 , 3 It is the concrete embodiment of two kinds of micromechanical "T" shaped optical switches.
[0028] figure 2 The "T"-shaped optical switch is mainly composed of a stretchable base and a reflector. The stretchable base can be composed of an electromagnet and an armature sandwiching an elastic material. The reflector is fixed on the armature, so that by controlling the electrical signal applied to the base The state of the optical switch can be controlled: when the co...
Embodiment 2
[0030] Embodiment 2 "T" shape optical switch array embodiment
[0031] Please refer to figure 1 with Figure 4 , the optical switch array is composed of multiple figure 1 The "T" shaped optical switch shown is formed by combining connections. figure 1A plurality of such "T" optical switches (the lower limit is 1 and the upper limit is not limited) are connected in sequence, and the port B of the first "T" optical switch is connected to the port A of the second "T" optical switch. The port B of the second "T" shaped optical switch is connected to the port A of the third "T" shaped optical switch, and so on, all the ports C of the "T" shaped optical switches point to the same direction, so that Form an optical switch chain. In the three-dimensional Cartesian space coordinates, one optical switch chain is placed along the y-axis. For the convenience of expression, it is called the y-chain. Any number of optical switch chains is placed along the z-axis. For the convenience of ...
Embodiment 3
[0032] Embodiment 3 An embodiment of an optical path device with both projection and camera functions
[0033] Please refer to Figure 5 with Image 6 , for the sake of convenience, here the optical switch array 8 adopts a structure of 8 rows×8 columns, and the principles of other structures are similar. The "column address signal" terminal and "row address signal" of the drive module 2 (here composed of two serial-in parallel-out chips 74HC595), the control terminal of the display light source 3, and the electrical signal output terminal of the photosensitive unit 4 are respectively connected with the processing The different input / output ports of device 1 (STC89C51 is selected here) are connected, and the display light source 3 here can be composed of a group of three primary color LED light sources or laser light sources and a light mixer. When projecting, the processor 1 controls the display light source 3 to emit light of a specific color according to the information of...
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