Laser pointer focus adjustment problem
At present, many mobile phones are equipped with Laser pointer. The biggest advantage of this kind of mobile phones with laser pointers is that they combine laser pointers and mobile phones into one. The trouble of the two things of the laser pointer; in particular, with this laser pointer, there is no need to purchase button batteries and alkaline batteries separately. At this time, the laser pointer is powered by the mobile phone battery, which saves money and is more environmentally friendly. However, the laser pointer is also a relatively dangerous electronic device. The red laser beam emitted by it has a very small spot, so the energy will be very concentrated. At this time, if you accidentally irradiate human eyes, especially children’s eyes, Will have serious consequences.
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A mobile terminal with a laser pointer focal length adjustment device, characterized by comprising: a drive motor, a lens moving mechanism, and a lens device; the drive motor is connected to the lens moving mechanism and drives the lens moving mechanism to work; the lens The moving mechanism is fixedly connected with the lens device, and is used to drive the lens device to move away/close in the laser beam emission direction of the laser pointer, so as to adjust the spot size of the laser beam. A device for adjusting the focal length of a laser pointer, suitable for a mobile terminal with a laser pointer, is characterized in that it comprises: a driving motor, a lens moving mechanism, and a lens device arranged on the mobile terminal; the driving motor and the The lens moving mechanism is connected to and drives the lens moving mechanism to work; the lens moving mechanism is fixedly connected to the lens device, and is used to drive the lens device to move away/close in the laser beam emission direction of the laser pointer to Realize the adjustment of the spot size of the laser beam.
2021-10-09 08:35:10
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