Lens displacement module testing device and use method thereof

Abstract

The invention discloses a lens displacement module testing device and a using method, the lens displacement module testing device comprises a testing power supply, the testing power supply is sequentially connected with a power supply main switch, an ammeter and a reversing switch, the reversing switch is connected with a direct current motor on a displacement module, and when the power supply main switch is in a closed state, the reversing switch is pulled to drive the displacement module to move. The direct-current motor can rotate forwards or reversely; the test power supply is 5V and is connected with the power supply adapter, the USB interface and the 220V power supply in sequence, and 220V voltage is converted into 5V stable direct current through rectification and voltage stabilization. Compared with the prior art, the testing device is added before the displacement module is assembled to debug the internal friction force of the mechanism in advance to obtain a proper current range, and the debugging is performed according to the current range after the assembly, so that the condition that the displacement mechanism is not smooth in movement or is directly blocked after being assembled into a whole machine and loading a lens can be effectively reduced; and the working stability and reliability of the displacement module are ensured.

Description

technical field [0001] The invention relates to the technical field of photoelectric product detection, in particular to a lens displacement module testing device and a method for using the same. Background technique [0002] Some engineering projectors are equipped with a lens shift module, which can drive the lens to move without changing the position of the projector, so as to realize the displacement of the projection screen. The operating power of the shift module comes from the DC motor installed on the module. In the assembly process of this type of projector, the displacement module is usually installed according to the predetermined torque, and finally all the parts are assembled into a complete machine. The complete machine test is used to determine whether the displacement module meets the predetermined requirements. If it does not meet the requirements , and then remove the displacement module to repair according to experience. [0003] After the displacement mo...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the above-mentioned technical problems, the object of the present invention is to provide a lens displacement module testing device. Before the displacement module is assembled, through the device, the displacement module is energized to perform a functional test. The test is simple and effective, and maintenance is easy. Convenience, avoiding abnormal cooperation of derivative parts, dust intrusion and other adverse phenomena caused by repeated repairs

Images