CN101435909A - Beam enlarging lens - Google Patents
Beam enlarging lens Download PDFInfo
- Publication number
- CN101435909A CN101435909A CNA2008102361916A CN200810236191A CN101435909A CN 101435909 A CN101435909 A CN 101435909A CN A2008102361916 A CNA2008102361916 A CN A2008102361916A CN 200810236191 A CN200810236191 A CN 200810236191A CN 101435909 A CN101435909 A CN 101435909A
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- CN
- China
- Prior art keywords
- lens
- beam expanding
- displacement transducer
- lens barrel
- liquid crystal
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The invention relates to a beam expanding lens, which can ensure precision of regulating ratio and divergence and has convenient use. The beam expanding lens comprises a movable lens barrel and an adjusting ring, wherein a lens is fixed in the movable lens barrel. The beam expanding lens also comprises a displacement sensor, a digital-analog converter circuit, a nixietube or a liquid crystal display device which are connected in sequence, wherein the displacement sensor is connected with the movable lens barrel so as to induce information of a lens displacing along an optical axis of the lens; and the displacement sensor can be a variable resistor, a variable inductor, a photoelectric transducer or a magnetic Hall element. In the invention, position information of the lens is transferred to the digital-analog converter circuit by the displacement sensor, a corresponding position of the lens is displayed precisely by the nixietube or the liquid crystal screen, and visual scale is replaced by digital display technology, thereby operation simplification is realized, precision of the regulating ratio and the divergence is ensured. The beam expanding lens is applicable to both a fixed-power beam expanding lens and a variable power beam expanding lens.
Description
Technical field
The present invention relates to a kind of beam expanding lens, specifically is the beam expanding lens of a kind of convertible multiplying power or adjusting divergence, is used for fields such as Laser Processing, laser alignment.
Background technology
The kind of beam expanding lens is different now, and fixed beam expanding lens and adjustable type beam expanding lens are arranged.For the adjustable type beam expanding lens, normally judge lens position by visual scale, realize the adjusting of magnification transformable and divergence, precision is difficult to guarantee and use inconvenience.
Summary of the invention
The invention provides a kind of beam expanding lens, can guarantee to regulate the precision of multiplying power and divergence, easy to use.
Described beam expanding lens comprises mobile lens barrel and regulating ring, be fixed with lens in the mobile lens barrel, also comprise the displacement transducer that is linked in sequence, D/A converting circuit and charactron or liquid crystal indicator, described displacement transducer links to each other with mobile lens barrel, and the induction lens are along the displacement information of its optical axis.The displacement transducer that can select for use is a lot, as variable resistor, variable inductance, photoelectric sensor, magnetic Hall element etc.The sensor of selecting for use directly or indirectly links to each other with mobile lens barrel, when mobile lens barrel moved, the electric signal of sensor is respective change also, and these signals change and pass through D/A converting circuit, be converted to the corresponding driving signal and remove to drive charactron or liquid crystal, demonstrate change in location with numeral.
The present invention in use is delivered to D/A converting circuit by displacement transducer with the positional information of lens, accurately show the lens relevant position by charactron or liquid crystal display again, replace visual scale with digital display technology, realize the simplification of operation, guaranteed to regulate the precision of multiplying power and divergence.
The present invention both had been applicable to fixedly multiplying power beam expanding lens, was applicable to again to become the multiplying power beam expanding lens.
Description of drawings
Fig. 1 is the embodiment of the invention 1 structural representation (a fixedly multiplying power beam expanding lens);
Fig. 2 is the embodiment of the invention 2 structural representations (becoming the multiplying power beam expanding lens).
Embodiment
As shown in Figure 1, fixedly the multiplying power beam expanding lens comprises mobile lens barrel 1, regulating ring 2, fixedly microscope base 4, displacement transducer 3, interconnective D/A converting circuit 6 and charactron 5.Fixedly the multiplying power beam expanding lens uses 2 groups of lens, wherein before the group lens be fixed in fixedly in the microscope base 4, the back is organized lens and is fixed in the mobile lens barrel 1, can move.Displacement transducer 3 is a variable resistor, be installed on the mobile lens barrel 1, variable-resistance round end is connected with regulating ring 2 by mechanical connecting device, mechanical connecting device can be gear, chain connection etc., when regulating regulating ring 2, variable-resistance round end also rotates thereupon, its resistance changes like this, the voltage signal of output is also in synchronous variation, these signals change by D/A converting circuit 6, be converted to the corresponding driving signal and remove to drive charactron 5, demonstrate the variation of lens position with numeral.The pedestal of charactron 5 is fixed on the mobile lens barrel 1.
As shown in Figure 2, Zooming expander comprises fixed lens barrel 1, mobile lens barrel, displacement transducer, D/A converting circuit and liquid crystal indicator.Mobile lens barrel comprises the mobile lens barrel 22 of reach moving lens barrel 21 and back, displacement transducer 31 and back displacement transducer 32 before displacement transducer comprises, D/A converting circuit 61 and preceding liquid crystal indicator 51, back D/A converting circuit 62 and back liquid crystal indicator 52 before D/A converting circuit and liquid crystal indicator comprise.Zooming expander uses 3 groups of lens, and wherein, forward and backward two groups of lens are individually fixed in the forward and backward mobile lens barrel, can move, and the middle groups lens are fixed in the lens barrel 1.Preceding displacement transducer 31 and back displacement transducer 32 are variable resistor, be installed in respectively on the mobile lens barrel 22 of reach moving lens barrel 21 and back by aforementioned manner, respond to the displacement information of forward and backward group of lens along its optical axis, pass to corresponding preceding D/A converting circuit 61 and back D/A converting circuit 62, drive the displacement information that corresponding preceding liquid crystal indicator 51 and back liquid crystal indicator 52 show lens again.The pedestal of preceding liquid crystal indicator 51 and back liquid crystal indicator 52 is fixed on the fixed lens barrel 1.Certainly, preceding liquid crystal indicator 51 and back liquid crystal indicator 52 also can be merged into a liquid crystal indicator and use.
Claims (5)
1. beam expanding lens, comprise mobile lens barrel and regulating ring, be fixed with lens in the mobile lens barrel, it is characterized in that also comprising the displacement transducer that is linked in sequence, D/A converting circuit and charactron or liquid crystal indicator, described displacement transducer links to each other with mobile lens barrel, and the induction lens are along the displacement information of its optical axis.
2. beam expanding lens as claimed in claim 1 is characterized in that described displacement transducer is variable resistor, variable inductance, photoelectric sensor or magnetic Hall element.
3. beam expanding lens as claimed in claim 2 is characterized in that described displacement transducer is a variable resistor, is installed on the mobile lens barrel, and variable-resistance round end is connected with regulating ring.
4. as each described beam expanding lens of claim 1-3, it is characterized in that described beam expanding lens is fixing multiplying power beam expanding lens.
5. as each described beam expanding lens of claim 1-3, it is characterized in that described beam expanding lens is for becoming the multiplying power beam expanding lens, mobile lens barrel comprises the mobile lens barrel of reach moving lens barrel and back, displacement transducer and back displacement transducer before displacement transducer comprises, D/A converting circuit and back D/A converting circuit before D/A converting circuit comprises, charactron or liquid crystal indicator and back charactron or liquid crystal indicator before charactron or liquid crystal indicator comprise, before lens comprise, rear lens, before, before rear lens is individually fixed in, in the mobile lens barrel in back, wherein preceding displacement transducer, preceding D/A converting circuit and preceding charactron or liquid crystal indicator are linked in sequence, displacement transducer links to each other with the reach moving lens barrel before described, the induction front lens is along the displacement information of its optical axis, back displacement transducer, back D/A converting circuit and back charactron or liquid crystal indicator are linked in sequence, and described back displacement transducer links to each other with the mobile lens barrel in back, and the induction rear lens is along the displacement information of its optical axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008102361916A CN101435909A (en) | 2008-11-26 | 2008-11-26 | Beam enlarging lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008102361916A CN101435909A (en) | 2008-11-26 | 2008-11-26 | Beam enlarging lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101435909A true CN101435909A (en) | 2009-05-20 |
Family
ID=40710428
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008102361916A Pending CN101435909A (en) | 2008-11-26 | 2008-11-26 | Beam enlarging lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101435909A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109975970A (en) * | 2017-12-27 | 2019-07-05 | 信泰光学(深圳)有限公司 | Sighting device |
| CN110119030A (en) * | 2019-06-19 | 2019-08-13 | 北京东方锐镭科技有限公司 | A kind of angle of divergence adjustable type beam expanding lens |
| CN110320635A (en) * | 2019-08-07 | 2019-10-11 | 北京东方锐镭科技有限公司 | A kind of beam expanding lens of the adjustable angle of divergence |
| CN113284395A (en) * | 2021-05-19 | 2021-08-20 | 山东电子职业技术学院 | Laser pen for multimedia teaching |
| WO2023098434A1 (en) * | 2021-12-03 | 2023-06-08 | 广州光联电子科技有限公司 | Light source device |
-
2008
- 2008-11-26 CN CNA2008102361916A patent/CN101435909A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109975970A (en) * | 2017-12-27 | 2019-07-05 | 信泰光学(深圳)有限公司 | Sighting device |
| CN110119030A (en) * | 2019-06-19 | 2019-08-13 | 北京东方锐镭科技有限公司 | A kind of angle of divergence adjustable type beam expanding lens |
| CN110320635A (en) * | 2019-08-07 | 2019-10-11 | 北京东方锐镭科技有限公司 | A kind of beam expanding lens of the adjustable angle of divergence |
| CN113284395A (en) * | 2021-05-19 | 2021-08-20 | 山东电子职业技术学院 | Laser pen for multimedia teaching |
| WO2023098434A1 (en) * | 2021-12-03 | 2023-06-08 | 广州光联电子科技有限公司 | Light source device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090520 |