Optical distance measurer capable of lowering deformation after grouping

Abstract

The optical ranging device includes an optical module, a lock accessory with plastic property, a circuit board, and a shell. The lock accessory is solidified to one side of the optical module. Being solidified to the, the circuit board is hanging mounted to the other side of the optical module. The optical module and the circuit board accommodated inside the shell is solidified to the lock accessory so as to make the optical module and the circuit board obtain correct positioning. Using the lock accessory to absorb a majority of deformation produced in assembling procedure so as to raise measuring precision of optical ranging device.

Description

technical field [0001] The invention relates to a distance measuring device, in particular to an optical distance measuring device capable of reducing deformation after assembly. Background technique [0002] ginseng figure 1 , figure 2 , the general optical distance measuring device 1 mainly includes an optical module 11 , a circuit board 12 and a housing 13 . [0003] The optical module 11 has a body 111, a first objective lens unit 112 and a second objective lens unit 113 arranged at one end of the body 111 along a first axis X1 and a second axis X2 respectively, along the first axis X1 A receiving unit 114 disposed at the other end of the body 111, a prism unit 115 disposed at the other end of the body 111 along the direction of the second axis X2, a display unit 116 and an eyepiece unit 117, and the prism unit 115 opposite A transmitting unit 118 is disposed at the other end of the main body 111 . The display unit 116 can display images and a crosshair (not shown) ...

AI Technical Summary

Problems solved by technology

[0007] But, because this optical module 11, this circuit board 12 and this shell 13, all are hard material, therefore, under the situation that this optical module 11 has adjusted optical axis in advance, this assembly method will There are two actions that cause the deviation of the optical axis, thereby affecting the accuracy of the measurement: one is that when the circuit board 12 is locked on the body 111 of the optical module 11, the circuit board 12 that has passed through the reflow oven will be A certain degree of deformation occurs, so that the body 111 locked with the circuit board 12 is affected and deformed, resulting in a deviation of the optical axis

The second is that when the body 111 of the optical module 11 is locked to the base 132 of the housing 13, the body of the optical module 11 will not be fully aligned due to the incomplete alignment of the holes and the locking itself requires a certain pressing force. 111 is also deformed, which will cause the adjusted optical axis to shift

Therefore, during the assembly process, the action of adjusting the optical axis must be repeated, which consumes a lot of time and manpower.

[0008] And the casing 13 is formed by combining the upper cover 131 and the base 132, and the front cover 133 and the rear cover 134, etc., so that many butt joint gaps will be formed, which makes the whole body unfavorable. Waterproof requirements, but must add a number of waterproof components, in order to achieve the purpose of waterproofing

Images