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Method and device for adjusting laser optical-channel focal length

A focus adjustment and optical path technology, applied in the field of optical instruments, can solve the problems of limited product processing accuracy and installation stability, focus deviation of receiving lens lens group and receiver, and lack of adjustability, etc.

Active Publication Date: 2014-12-17
CHONGQING CHUANYI AUTOMATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of this, the present invention provides a method and device for adjusting the focal length of the laser light path, so as to overcome the complete limitation of the method in the prior art due to the deviation of the focusing of the laser diode receiving lens group and the receiver in the laser analyzer. The processing accuracy and installation stability of the product do not have the problem of adjustability

Method used

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  • Method and device for adjusting laser optical-channel focal length
  • Method and device for adjusting laser optical-channel focal length
  • Method and device for adjusting laser optical-channel focal length

Examples

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Embodiment 1

[0043] A method for adjusting the focal length of the laser light path disclosed in Embodiment 1 of the present invention, such as figure 1 As shown, it mainly includes the following steps:

[0044] Step S11: Adjust the level of the optical bench on the support table;

[0045] During the execution of step S11, the optical bench is fixed on the support table as a supporting body, and the optical bench is adjusted to be in a horizontal state, so as to ensure that the adjustment will not be deviated due to the inclination of the optical bench.

[0046] Step S12: Install the first support seat and the second support seat on the upper surface of the optical bench, the installation position of the first support seat corresponds to the position of the emission lens barrel in the laser analyzer, for Supporting the emitting lens barrel; the installation position of the second support seat corresponds to the position of the receiving lens barrel in the laser analyzer, and is used to su...

Embodiment 2

[0062] Based on the method for adjusting the focal length of the laser light path disclosed in the first embodiment above, on this basis, as figure 2 As shown, the process of adjusting the centerlines of the first support seat and the second support seat on the same straight line includes:

[0063] Step S21: placing an auxiliary support bar on the first support base and the second support base;

[0064] In the process of executing step S21, the auxiliary support rod is a standard rod whose size matches the outer dimensions of the emitting lens barrel and the receiving lens barrel. After installing the first support base and the second support base, the The auxiliary support rod is placed on the first support seat and the second support seat.

[0065] Step S22: Use a dial indicator to measure whether the auxiliary support bar is in a horizontal state, and adjust the first support seat and the second support seat until the dial indicator measures that the auxiliary support bar...

Embodiment 3

[0070] Embodiment 3 of the present invention discloses a laser light path focal length adjustment device, its structure is as follows image 3 As shown, it mainly includes: optical bench A1, first support base A2, second support base A3, adjustment device A4, energy display A5 and special adjustment knob A6.

[0071] Optical bench A1 installed horizontally on the support table;

[0072] Installed on the upper surface of the optical bench A1 to support the first support seat A2 of the emitting lens barrel in the laser analyzer, and installed on the upper surface of the optical bench A1 to support the laser analyzer The second support seat A3 of the receiving lens barrel, the installation position of the first support seat A2 corresponds to the position of the emission lens barrel in the laser analyzer; the installation position of the second support seat A3 corresponds to the position of the laser The position of the receiving lens barrel in the analyzer corresponds to;

[00...

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Abstract

The invention discloses a method and a device for adjusting laser optical-channel focal length. The method for adjusting laser optical-channel focal length includes adopting an optical bench as a support, positioning a transmitting lens cone and a receiving lens cone by a first support seat and a second support seat mounted on the upper surface of the optical bench, adopting an auxiliary support bar as support aid, and adjusting the transmitting lens cone and the receiving lens cone on the same central line; adjusting the distance between an optical receiving lens set and a receiving device by a special adjustment knob on the optical receiving lens set mounted in the receiving lens cone so that change of intensity of signals received by the receiving device can be displayed on an energy display; and determining the correct mounting position of the optical receiving lens set when the intensity of the signals received by the receiving device, displayed by the energy display, is highest. The distance between the optical receiving lens set and the receiving device in the receiving lens cone is manually adjusted by the special adjusting knob, so that a receiving lens set and a receiver of a laser diode of a laser analyzer are adjustable.

Description

technical field [0001] The invention relates to the technical field of optical instruments, in particular to a method and device for adjusting the focal length of a laser light path. Background technique [0002] In the practical application of laser analyzers, the focus of the laser diode receiving lens lens group and the receiver in the laser analyzer often deviates due to vibrations during transportation or on-site work, because the laser spot is very small, if it is focused Inaccurate, the detection signal of the laser analyzer will be inaccurate and the detection accuracy will be reduced. [0003] In industrial applications, most of the methods to solve the above problems are to maintain the stability of the focus point through high-precision processing and installation fixation. It is impossible to manually adjust the deviation between the laser diode receiving lens lens group and the receiver according to the actual situation. Conducive to the user's application and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B7/04
Inventor 卢杰桂亚辉金多曾繁华
Owner CHONGQING CHUANYI AUTOMATION
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