CN100381806C - Transmittance ratio test system for folding-shaft periscopic telescope optical system - Google Patents
Transmittance ratio test system for folding-shaft periscopic telescope optical system Download PDFInfo
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- CN100381806C CN100381806C CNB2007100631600A CN200710063160A CN100381806C CN 100381806 C CN100381806 C CN 100381806C CN B2007100631600 A CNB2007100631600 A CN B2007100631600A CN 200710063160 A CN200710063160 A CN 200710063160A CN 100381806 C CN100381806 C CN 100381806C
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- light
- light source
- guide rail
- receiving element
- optical system
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Abstract
A folding axis/periscope telescope optical system transmission ratio measurement system includes: 1) light source component, including the light source and modulation wheel; 2) launching unit, including parallel tubes and changeable diaphragm; 3) receiving unit, including integral ball and photomultiplier tube for detecting incident light energy ; 4) control processing unit, including lock phase amplifier, analog-digital conversion circuit, SCM and display; its characteristic is that the launching unit and receiving unit are made to separate structure, and each separate structure can be independently lifted or pitching adjusted to meet the testing requirements of the folding axis telescope optical system transmission ratio; to improve the measurement precision, the system uses two optical paths method, to a certain extent, excluding the signal drift of the light source, detector, high-voltage power supply, amplifier and other components, and after a 100% calibration, it can process measurement in a long time.
Description
Technical field
The present invention relates to a kind of optical instrument projection than test macro, particularly a kind of doubling axle/dive and hope telescope optical system carry out the system of visible transmission than test belongs to the luminosity measurement technical field.
Background technology
Use always in Gauss's formula telescope optical system and carry out inverted image to prism, telescopic system usually needs to turn back optical axis to reduce the instrument volume during instrument system design, and the sight in the equipments such as tank, submarine is taken aim at equipment and must be with Qian to hope function.Multiple situation as described above, its system optical axis is not a straight line, its optical axis is turned back by optical elements such as prism, catoptron, spectroscopes, make incident light such as telescopic system and emergent light not point-blank, occur as yet at present specially at such folding axle/dive and hope telescope optical system carry out the system of transmittance test.This test macro has been realized the folding axle/prestige telescope optical system transmittance of diving test, has filled up the blank of this field tests.
Summary of the invention
The object of the present invention is to provide a kind of axle/latent transmittance test macro of having a look system far away that is used to roll over, this system surveys based on the transmitted light energy, and whole visible-range is all had response.Test macro of the present invention is made the branch body structure with transmitter unit and receiving element, and each minute body structure can independent-lifting or pitching adjustment, satisfy the test request of folding axle telescope optical system transmitance.For improving measuring accuracy, system has adopted the double light path mode, has got rid of the signal drift of parts such as light source, detector, high-voltage power supply, amplifier to a certain extent, can measure in long-time after one time 100% calibration.
According to above-mentioned purpose, folding axle/dive and hope telescope optical system transmittance test macro comprise following ingredient, as shown in Figure 1:
1) light source assembly comprises light source 1 and chopper wheel 2;
2) transmitter unit comprises parallel light tube 6 and interchangeable diaphragm 7;
3) receiving element comprises the integrating sphere 10 and the photomultiplier 11 that are used to survey the incident light energy;
4) controlled processing unit (not shown) comprises lock-in amplifier, analog to digital conversion circuit, single-chip microcomputer and display screen;
It is characterized in that light source assembly also comprises: be used for the emergent light of light source is divided into the spectroscope 4 of two-way, reference optical fiber 5 and the measuring optical fiber 3 that is used to switch the electronic optical gate (not shown) of two-way light and is used for transmitting two paths light;
Wherein, described transmitter unit is installed on the secondary three-dimensional moving guide rail, receiving element is installed on another secondary three-dimensional moving guide rail, described controlled processing unit is installed in the rack, and this rack is integral with the three-dimensional guide rail vertical pivot that receiving element is installed, and is installed in jointly on the transverse axis of this three-dimensional guide rail with light source assembly.
Further, receiving element can also comprise the hot spot observer 9 that is positioned at the integrating sphere inlet, with the convenient position of in time adjusting measured piece 8 in measurement.
In addition, transmitter unit can also be rotated adjustment rack by two dimension is installed on the secondary three-dimensional moving guide rail, and two dimension is rotated adjustment rack and can be rotated around the vertical pivot of this three-dimensional guide rail, can realize the rotation of emitting module in pitching and horizontal direction, satisfied folding axle/dive and have a look the test request of system far away.Described receiving element also can rotate adjustment rack by one dimension and be installed on described another secondary three-dimensional moving guide rail.
The system works principle:
This system adopts the double light path design, and the light that light source 1 sends is through two light transmitting fibers, and 3 emissions of route test light collimate after entered integrating sphere 10 by photometry part 8 through parallel light tube 6; Another route reference ray 5 is directly sent into the reference light inlet of integrating sphere 10.Two electronic optical gates are set in the light source 1 carry out the switching of optical system for testing and reference path.At first carry out initialization behind the system boot, guarantee to gather calibration after test light (through parallel light tube) directly enters integrating sphere 10, by the electronic barrier gate switching-over light path in the light source 1, reference path is also gathered calibration simultaneously.Afterwards test light is carried out the continuous coverage of monochromatic light road, purpose be for when adjusting this light path, can see in real time can be for reference the result.After the light path adjustment finishes, control electronic optical gate conversion light path, collecting test light path and reference path automatically provide the measurement result of double light path after the processing.Electronic optical gate the time that the needs of conversion light path are extremely short, has reduced the influence of light source intensity instability to measuring accuracy owing to adopt circuit control.
Adopt chopper wheel the light intensity signal of light source 1 emission be modulated into fixed frequency AC signal, by lock-in amplifier this AC signal is selected to amplify, avoid detecting the environment veiling glare, reduce environmental impact.
As shown in Figure 2, surveyed by photomultiplier through the light intensity signal of measured piece, realize opto-electronic conversion, then through lock-in amplifier, the A/D change-over circuit is finished digitizing, handles by single-chip microcomputer and calculates back output measurement result, and be presented on the display screen.
Technique effect of the present invention is: (1) by making the branch body structure to transmitter unit and receiving element, and can the multidimensional adjustment, structurally satisfies folding axle/dive and hope the test request of telescope optical system transmitance; (2) modulate by light source, carry out demodulation, can eliminate the influence of environment veiling glare, improve the transmission measurement precision at receiving element to transmitter unit; (3) use optical fiber to pass light, make light source principle integrating sphere and detector, reduce influence, improve the transmission measurement precision; (4) adopt double light path, reduce the fixed influence of flashing, improve the transmission measurement precision by comparing and measuring.
Description of drawings
Fig. 1 is the structure and the system light path synoptic diagram of test macro of the present invention;
Fig. 2 is a circuit acquisition processing system block diagram;
Fig. 3 is the specific embodiment figure of test macro.
Embodiment
Folding axle/dive and hope telescope optical system transmittance test macro comprise four chief components: light source assembly, transmitter unit, receiving element and controlled processing unit.As shown in Figure 3, transmitter unit 13 comprises light source, chopper wheel, spectroscope and electronic optical gate, after the light of light emitted loads AC signal through chopper wheel, be divided into two-way light by spectroscope, by two optical fiber outputs, electronic optical gate is installed between spectroscope and the optical fiber, and controlled processing unit is realized the conversion of two-way light by this electronic optical gate of control.Controlled processing unit and assembly thereof all are installed in the rack 14, owing to need between controlled processing unit and the power supply module to realize being electrically connected, and also need between receiving element (integrating sphere) 10 and the controlled processing unit to be electrically connected, and also need to connect reference optical fiber between power supply module or the receiving element, therefore, the vertical pivot and the rack 14 that will be used to install the three-dimensional moving guide rail 15 of receiving element 10 are made of one, and rack 14 and transmitter unit 13 are installed on the transverse axis of three-dimensional moving guide rail 15 together.Make the position between light source assembly, controlled processing unit and the receiving element can keep relative fixed like this.
The main body of transmitter unit is a parallel light tube 6, on it beam split diaphragm can be installed.Parallel light tube 6 is installed on the adjustment rack 16, transmitter unit 13 between connect by measuring optical fiber 13.Adjustment rack 16 itself is a two-dimentional rotating mechanism, and be installed in rotation on the vertical pivot of three-dimensional moving guide rail 12, like this, parallel light tube not only can be realized the mobile adjustment of three directions by three-dimensional moving guide rail, can also realize the rotation adjustment of three directions simultaneously by adjustment rack 16.
During test, aim at by the three- dimensional guide rail 12,15 of regulating transmitter unit and receiving element respectively, put into measured piece 8 after, regulate the translation guide rail of receiving element.Because system under test (SUT) is telescopic system, and has a look system far away at folding axle/dive and design, so transmitter unit can be done the adjusting of level and pitch orientation.The integrating sphere 10 of receiving element rotates adjustment rack by an one dimension and is installed on the vertical pivot of three-dimensional moving guide rail 15, can do 45 degree adjustings up and down in pitch orientation, to adapt to different systems under test (SUT).
The major control element of control module adopts single-chip microcomputer, finish the flow process such as setting, keyboard scan, liquid crystal display of signals collecting, data processing, light source driving and state acquisition, lock-in amplifier by software programming, export the result at last and be presented on the display screen.
In order further to understand this test macro, below introduce the use test step of this system:
1, open instrument power source, whether inspection apparatus operate as normal, whether bright dipping of optical fiber, and display panel is lighted;
2, adjust the position of parallel light tube object lens, guarantee the outgoing parallel beam, tighten the object lens gib screw then.Available screen receives, and judges by the illuminance uniformity of seeing spot size on the receiving screen;
3, adjust light source base and integrating sphere pedestal respectively, parallel light tube and integrating sphere are alignd in the horizontal direction;
4, adjust integrating sphere and parallel light tube height, parallel light tube and integrating sphere are alignd in vertical direction, and consider the height, position, shape etc. of measured piece;
5, adjust integrating sphere and parallel light tube pitching and beat, make the outgoing light positive go into to inject integrating sphere;
6, repeat 3-5, make the incident of outgoing light positive and be positioned at the integrating sphere center, whether being positioned at the center observes or watches or lift the integrating sphere access hatch here from parallel light tube and watch definite by opening the integrating sphere top cover, normal incidence is to enter the mouth by lean against integrating sphere with one flat plate glass reflector (the front and rear surfaces depth of parallelism is better), and reflected light is determined from quasi-reflection;
7, select suitable parallel light tube outgoing diaphragm according to the entrance pupil of measured piece;
8, start calibration procedure, the electronic shutter action of Single-chip Controlling is finished the output of reference light and test light successively, finishes energy at receiving element and surveys, and the two-way light intensity is finished comparison calibration;
9, between parallel light tube and integrating sphere, put into measured piece, adjust height, horizontal level, pitching, the beat of measured piece, make the light of parallel light tube outgoing all by measured piece and all enter integrating sphere;
10, begin test, the electronic shutter action of Single-chip Controlling is finished the output of reference light and test light successively, finishes energy at receiving element and surveys, and the two-way light intensity is finished compare test.
11, repeating step 10, can finish repeatedly test, and test result is averaged, can checkout result repeatability and raising precision of test result.
Claims (4)
1. the folding axle/prestige telescope optical system transmittance of diving test macro comprises:
1) light source assembly comprises light source and chopper wheel;
2) transmitter unit comprises parallel light tube and interchangeable diaphragm;
3) receiving element comprises the integrating sphere and the photomultiplier that are used to survey the incident light energy;
4) controlled processing unit comprises lock-in amplifier, analog to digital conversion circuit, single-chip microcomputer and display screen;
It is characterized in that light source assembly also comprises: reference optical fiber and measuring optical fiber that the emergent light that is used for transmitter unit and receiving element is divided into the spectroscope of two-way, is used to switch the electronic optical gate of two-way light and is used for transmitting two paths light;
Wherein, described transmitter unit is installed on the secondary three-dimensional moving guide rail, receiving element is installed on another secondary three-dimensional moving guide rail, described controlled processing unit is installed in the rack, and this rack is integral with the three-dimensional guide rail vertical pivot that receiving element is installed, and is installed in jointly on the transverse axis of this three-dimensional guide rail with light source assembly.
2. folding axle as claimed in claim 1/dive and hope telescope optical system transmittance test macro is characterized in that described receiving element also comprises the hot spot observer that is positioned at the integrating sphere inlet.
3. folding axle as claimed in claim 1/dive and hope telescope optical system transmittance test macro, it is characterized in that, described transmitter unit rotates adjustment rack by two dimension and is installed on the secondary three-dimensional moving guide rail, and two dimension rotation adjustment rack can rotate around the vertical pivot of this three-dimensional guide rail.
4. folding axle as claimed in claim 1/dive and hope telescope optical system transmittance test macro is characterized in that described receiving element rotates adjustment rack by one dimension and is installed on another secondary three-dimensional moving guide rail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100631600A CN100381806C (en) | 2007-01-30 | 2007-01-30 | Transmittance ratio test system for folding-shaft periscopic telescope optical system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100631600A CN100381806C (en) | 2007-01-30 | 2007-01-30 | Transmittance ratio test system for folding-shaft periscopic telescope optical system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101013062A CN101013062A (en) | 2007-08-08 |
| CN100381806C true CN100381806C (en) | 2008-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2007100631600A Expired - Fee Related CN100381806C (en) | 2007-01-30 | 2007-01-30 | Transmittance ratio test system for folding-shaft periscopic telescope optical system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105571822A (en) * | 2015-12-24 | 2016-05-11 | 中国电子科技集团公司第四十一研究所 | Calibrating device of two-dimensional color analyzer and calibration method |
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| CN102235974B (en) * | 2010-04-20 | 2013-08-14 | 中国科学院上海硅酸盐研究所 | Device and method for testing full penetration rate of transparent ceramic bulk material |
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| CN102510006B (en) * | 2011-11-21 | 2013-01-23 | 中国科学院半导体研究所 | Optical shutter device for high-power laser |
| CN102565008B (en) * | 2011-12-28 | 2013-09-11 | 北京奥博泰科技有限公司 | Method and device for measuring transmittance of material by using integrating sphere |
| CN103308282B (en) * | 2013-06-09 | 2016-03-02 | 中国科学院西安光学精密机械研究所 | The efficient measuring system of reflective telescopic system transmitance and method |
| CN103528797B (en) * | 2013-10-22 | 2016-09-14 | 长春四叶之义科技有限公司 | A kind of new system detected for optical system eyeglass transmitance and reflectance |
| CN107091730B (en) * | 2017-06-08 | 2024-04-16 | 金华职业技术学院 | Device for estimating absolute light response rate of photomultiplier |
| CN108680188B (en) * | 2018-06-21 | 2023-09-01 | 中国科学院西安光学精密机械研究所 | PST test and extremely weak target simulation system and PST and detection capability test method |
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| JPS61223536A (en) * | 1985-03-28 | 1986-10-04 | Shimadzu Corp | Spectrophotometer |
| CN1051248A (en) * | 1989-10-24 | 1991-05-08 | 华东工学院 | Tester for amount of information on optical fibre panel |
| CN1073012A (en) * | 1991-12-07 | 1993-06-09 | 株式会社岛津制作所 | The device of measuring optical fiber spectral-transmission favtor |
| CN1384333A (en) * | 2002-06-14 | 2002-12-11 | 清华大学 | Optical fiber sensor for multiparameter non-contact defocusing detection of product surface |
| CN1510414A (en) * | 2002-12-26 | 2004-07-07 | 精碟科技股份有限公司 | Optical assembly measuring apparatus |
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- 2007-01-30 CN CNB2007100631600A patent/CN100381806C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61223536A (en) * | 1985-03-28 | 1986-10-04 | Shimadzu Corp | Spectrophotometer |
| CN1051248A (en) * | 1989-10-24 | 1991-05-08 | 华东工学院 | Tester for amount of information on optical fibre panel |
| CN1073012A (en) * | 1991-12-07 | 1993-06-09 | 株式会社岛津制作所 | The device of measuring optical fiber spectral-transmission favtor |
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| CN1510414A (en) * | 2002-12-26 | 2004-07-07 | 精碟科技股份有限公司 | Optical assembly measuring apparatus |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105571822A (en) * | 2015-12-24 | 2016-05-11 | 中国电子科技集团公司第四十一研究所 | Calibrating device of two-dimensional color analyzer and calibration method |
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| CN101013062A (en) | 2007-08-08 |
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