CN2898816Y - Measuring system of optical parameter by spatial angle distribution - Google Patents

Measuring system of optical parameter by spatial angle distribution Download PDF

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Publication number
CN2898816Y
CN2898816Y CN 200520115567 CN200520115567U CN2898816Y CN 2898816 Y CN2898816 Y CN 2898816Y CN 200520115567 CN200520115567 CN 200520115567 CN 200520115567 U CN200520115567 U CN 200520115567U CN 2898816 Y CN2898816 Y CN 2898816Y
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CN
China
Prior art keywords
angular transducer
optical
measuring
photo
detector
Prior art date
Application number
CN 200520115567
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Chinese (zh)
Inventor
王宗凯
王春雨
Original Assignee
王宗凯
王春雨
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Application filed by 王宗凯, 王春雨 filed Critical 王宗凯
Priority to CN 200520115567 priority Critical patent/CN2898816Y/en
Application granted granted Critical
Publication of CN2898816Y publication Critical patent/CN2898816Y/en

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Abstract

The utility model relates to a measuring system of optical parameter by spatial angle distribution, which is characterized in that a photodetector can move around the object to be detected; an angle sensor used for measuring the location of the photodetector is arranged between the photodetector and the point to be detected; the photodetector is connected with the rotation spindle of the angle sensor by a lever with a variable power arm length to bring the angle sensor and the photodetector can simultaneously move around respective axis. Any position on the plane including the point to be measured is not occupied by the components of the system not to be measured, the photodetector can perform the non uniform motion and randomly change the motion direction in the measuring process. In the process of simultaneous rotation of the photodetector with the angle sensor, an interface circuit, under the control of computer, acquires the angle information from the angle sensor and acquires the photo information from the photodetector, an optics parametric curve distributed as per angle is achieved after the data is processed by computer.

Description

Optical parametric is pressed the measuring system that space angle distributes

Technical field:

The utility model relates to a kind of optical measuring system, is used for the measurement of the optical parametric of display device by angular distribution, also can be used for the measurement of the optical parametric of other luminescent device, optical material, optical device by angular distribution.

Background technology:

Optical parametric is the important tool of the various displays of research, development and production by the surveying instrument of angular distribution.People have developed some test macros and have satisfied the needs that optical parameter is measured by angular distribution, for example: the flat-panel monitor measuring system (www.radiantimaging.com) that the exploitation of Radiant Imaging company is sent out, the MD series of products (www.photal.co.jp) of Photal company, the LCT-5016 liquid crystal parameter comprehensive tester (www.cclci.com) at China northern liquid crystal center, the SS-220 test macro (www.microvsn.com) of Microvision company, the LFS6-6500 test macro (www.Imscorp.co.kr) of LMS company and the FPM-500 of ESTAR company, FPM-510, FPM-530-FO test macro (www.wester.com/fpm) etc., these measuring system volumes are big, they need the linear and rotating machinery device of multidimensional, need a plurality of motion driving elements to comprise motor and driving power etc., need optical table even special-purpose laboratory sometimes.The visual angle tester (www.eldim.fr) of ELDIM company does not use the motion driving element, but owing to used Fourier lens and CCD image device, it is involved great expense.In many occasions, the research and development personnel need a kind of test macro of simple portable, but also do not have a kind of measuring system that is used for the portable optical parametric of display by angular distribution at present.

Summary of the invention:

The purpose of this utility model provides the measuring system of a kind of portable measuring light mathematic(al) parameter by angular distribution.

The technical scheme that its technical matters that solves the utility model adopts is: angular transducer is installed between optical detector component and the measured point, photo-detector is done the axis of circular trace motion and the pivot center of angular transducer does not coincide together, the rotation axis of photo-detector and angular transducer is connected by the adjustable length lever of a power arm, when promoting photo-detector, lever can drive angular transducer, make angular transducer and photo-detector can be simultaneously around separately axial-movement.Because this structure is when manually rotating optical detector component, can be by the angle position at the accurate measuring light detector of angular transducer place, and the real-time measurement of angle and the high-speed sampling of computing machine make the rotating speed inequality of bringing owing to manually, the phenomenon of rotation direction random variation does not influence test result, therefore this structure can not used any motor and driving power thereof, only need a USB cable and computing machine to link, so it is a kind of portable test macro.

The principle of work and the basic structure of measuring system are: optical detector component can be around circular trace motion, and the measured point is positioned on the axis of this circular trace motion.Angular transducer is installed between optical detector component and the measured point and is positioned at photo-detector range of receiving position in addition, optical detector component is done the axis of circular trace motion and the pivot center of angular transducer does not coincide together, the parts of tested system are not occupied can to make any position on the tested plane that comprises the measured point like this, thereby can make test macro to the size of testee size without limits.The rotation axis of photo-detector and angular transducer is connected by the adjustable length lever of a power arm, and angular transducer and photo-detector can be simultaneously rotated around separately axis.According to the information that angular transducer provides, can determine the angle of the relative measured point of photo-detector, the information that provides under this angle by photo-detector obtains the optical parametric under this angle again.In the process that photo-detector and angular transducer rotate simultaneously, one computer interface circuit is gathered optical information from angular transducer acquisition angles information with from photo-detector under the control of computing machine, data machine as calculated can obtain the result of optical parametric by angular distribution after handling.

The lever that connects optical detector component and angular transducer, to rotate and pass to angular transducer by detector assembly, lever one end that connects optical detector component and angular transducer is fixed on the turning axle of angular transducer and with angular transducer and rotates synchronously, the lever other end has an elongated hole, the application point of optical detector component and lever is different and different with the relative measured point of photo-detector angle, this application point moves at the elongated hole that is positioned on the lever, can rotate around the center of circle separately simultaneously to guarantee angular transducer and photo-detector.

Above-mentioned optical detector component comprises photo-detector, installs and fixes the shell of photo-detector, slide block and handle, and arc-shaped rail is arranged on the slide block, and it can make optical detector component move on a circular guideway, and makes photo-detector point to the center of circle of circular trace; Handle on the optical detector component is a hollow, the lead-in wire of angular transducer and photo-detector is all introduced and is drawn by the handle that is positioned on the optical detector component, driving handle can make the photo-detector motion, and this moves through the rotation of lever drives angular transducer simultaneously.In the optical detector component different types of photo-detector can be installed, photo-detector described in the utility model can be a photodetector, CCD array image detector or imaging fibre, the optical fiber that links to each other with spectral instrument also can be the multichannel optical fiber with illumination and light collection function.

With photo-detector, after angular transducer couples together with the said structure installation, coupled computer interface circuit again, computing machine and computer program, the variation of various optical parametrics with angle can be measured by this optical detection system, and these parameters can be light intensity, contrast, wavelength, the optical material transmissivity, the polarisation of light degree, reflection of light, scattering of light and image etc.

The beneficial effects of the utility model are: use than the simpler structure of prior art and obtain the curve of optical parametric by angular distribution, for the user provides a kind of portable test macro.

Description of drawings:

Fig. 1 is a The general frame of the present utility model.

Fig. 2 is angle and the relation of angular transducer rotational angle and the synoptic diagram of optical detector component and point of leverage movement locus of the relative measured point of normal of optical detector assembly in the utility model.

Fig. 3 is the utility model embodiment one.

Fig. 4 is the optical detector component among the embodiment 1.

Fig. 5, Fig. 6 are the computer programme flow diagram that embodiment 1 adopts.

Among the figure: 1, computing machine or programmable microprocessor, 2, analog quantity/data volume, the input/output interface circuit, 3, angular transducer, 4, spectrometer, 5, optical detector component, 6, testee, 10, the angle of photo-detector normal and testee surface normal, the summit of this angle is the measured point, 11, the angular displacement of angular transducer, the summit at this angle is the rotation center of angular transducer, 12, the movement locus of optical detector component and point of leverage, 13, the application point of optical detector component and lever, 14, when measured object is a plane, residing position, this plane, 16, elongated hole on the lever, 17, lever, 18, circular guideway, 19, measured point on the testee, 20, packed into detector in the optical detector component, the shell of lens and worry mating plate, 21, slide block on the optical detector component, 22, handle on the optical detector component, 23, cambered way on the optical detector component.

Embodiment:

Embodiment one: as shown in Figure 3, with photo-detector (Hamamatsu company, S9219) optical detector component (5) of packing into, the receiving end of photo-detector is in the face of measured point (19), angular transducer (3) is the EVLHFAA01 of PANASONIC, the distance of its axis of rotation and measured point is d, the power lead of photo-detector and angular transducer and signal wire are introduced and are drawn by handle (22), output line is connected with analog quantity/data volume input/output interface circuit (2), interface circuit is the excellent UA307 that adopts company in Beijing, and interface circuit can provide photo-detector and the required power supply of angular transducer simultaneously; Lever (17) one ends are fixed in the rotating shaft of angular transducer (3), the other end of lever has an elongated hole (16), register pin (13) on the optical detector component (5) can move in elongated hole, with hand propelled handle (22) optical detector component is gone up slides at track (18), lever (17) drives angular transducer (3) rotation simultaneously, the optical information of the angle information of angular transducer (3) output and photo-detector output is gathered by interface circuit (2) and by the USB cable computing machine of making a gift to someone, angle information that computing machine provides according to angular transducer and the relation between angle (10) and angle (11): (d * sin (angle (11))/R) calculates the angle (10) at photo-detector place and is given in optical parameter under this angle at angle (10)=angle (11)-arcsin.Here d is the rotating shaft of angular transducer and the distance between the measured point, and R is the radius that the application point of optical detector component and lever is done the circular trace motion.Also can be earlier carry out the angle calibration to system, obtain the curve of angular transducer output and photo-detector position correspondence, computing machine is determined the angle at photo-detector place according to the output of angular transducer and is given in optical parameter under this angle.Present embodiment is when work, with hand propelled handle (22) optical detector component is moved on circuit orbit, this moves through the lever drives angular transducer and rotates, computing machine is carried out program shown in Figure 5, alternately gather light signal and angle signal by interface circuit, in the image data process, but the angle at computer program real-time judge photo-detector place and the optical parameter of measurement under this angle, but photo-detector non-uniform movement and the random direction of motion that changes in measuring process.Also can carry out program shown in Figure 6, by fixing step-length image data.The utility model is compared with existing similar test macro, does not need other drive unit, also do not need other power supply, so it is a kind of portable test macro.

Embodiment two: in embodiment one, replace photo-detector with optical fiber, optical fiber one end is faced the measured point in optical detector component, the other end is drawn by handle (22) and is linked to each other with spectrometer (4), spectrometer is with the signal computing machine of making a gift to someone, the variation of the spectral intensity of testee luminous (or printing opacity, reflective) with angle can be measured by this system, and spectrometer is the USB4000 of OceanOptics company.

Claims (4)

1, a kind of measuring light mathematic(al) parameter comprises optical detector component, angular transducer, mechanical connection and sportswear , interface circuit, computing machine and computer program by the measuring system of angular distribution; Optical detector component can be done the circular trace motion around the measured point, the position  at angular transducer measuring light detector place; It is characterized in that: angular transducer is installed between photo-detector and the measured point, photo-detector is done the axis of circular trace motion and the pivot center of angular transducer does not coincide together, and is connected by the adjustable length lever of a power arm between the rotation axis of optical detector component and angular transducer.
2, optical parametric according to claim 1 is characterized in that by the measuring system of angular distribution: lever one end that connects optical detector component and angular transducer is fixed on the turning axle of angular transducer and with angular transducer and rotates synchronously.
3, optical parametric according to claim 1 is by the measuring system of angular distribution, it is characterized in that: the power arm length of the connection optical detector component and the lever of angular transducer rotation axis is different and different with the relative measured point of photo-detector angle, one elongated hole is arranged on the lever, and the application point of optical detector component and lever can move at the elongated hole that is positioned on the lever.
4, optical parametric according to claim 1 is by the measuring system of angular distribution, and it is characterized in that: the handle on the optical detector component is a hollow, and the lead-in wire of angular transducer and photo-detector is introduced and drawn by the handle that this is positioned on the optical detector component.
CN 200520115567 2005-07-26 2005-07-26 Measuring system of optical parameter by spatial angle distribution CN2898816Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200520115567 CN2898816Y (en) 2005-07-26 2005-07-26 Measuring system of optical parameter by spatial angle distribution

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Application Number Priority Date Filing Date Title
CN 200520115567 CN2898816Y (en) 2005-07-26 2005-07-26 Measuring system of optical parameter by spatial angle distribution

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CN2898816Y true CN2898816Y (en) 2007-05-09

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103728244A (en) * 2013-10-11 2014-04-16 中国科学院上海光学精密机械研究所 Synchronous angling mechanism for supporting optical module
CN103727970A (en) * 2013-11-06 2014-04-16 中国科学院上海光学精密机械研究所 Synchronous torque angle indicator
CN104089877A (en) * 2014-07-10 2014-10-08 上海第二工业大学 Wide-range turbidity meter
CN105259144A (en) * 2015-11-03 2016-01-20 西安工业大学 Large-dynamic-range omnibearing sample BRDF (bidirectional reflectance distribution function) measuring device
CN106334678A (en) * 2016-08-31 2017-01-18 吴正明 Flexible production line based on visual inspection
CN106362961A (en) * 2016-08-30 2017-02-01 吴正明 Working method for flexible production line
CN106378315A (en) * 2016-08-30 2017-02-08 吴正明 Flexible production line
CN106391493A (en) * 2016-08-31 2017-02-15 吴正明 Operating method for flexible production line based on visual inspection
CN107560832A (en) * 2017-09-06 2018-01-09 长春国科精密光学技术有限公司 Measuring system and the method for measuring d-cinema projectors optical parametric

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103728244A (en) * 2013-10-11 2014-04-16 中国科学院上海光学精密机械研究所 Synchronous angling mechanism for supporting optical module
CN103728244B (en) * 2013-10-11 2016-01-06 中国科学院上海光学精密机械研究所 The synchronous rotation angle mechanism of support of optical assembly
CN103727970A (en) * 2013-11-06 2014-04-16 中国科学院上海光学精密机械研究所 Synchronous torque angle indicator
CN103727970B (en) * 2013-11-06 2016-02-10 中国科学院上海光学精密机械研究所 Synchronous steering angle instrument
CN104089877A (en) * 2014-07-10 2014-10-08 上海第二工业大学 Wide-range turbidity meter
CN105259144A (en) * 2015-11-03 2016-01-20 西安工业大学 Large-dynamic-range omnibearing sample BRDF (bidirectional reflectance distribution function) measuring device
CN106362961A (en) * 2016-08-30 2017-02-01 吴正明 Working method for flexible production line
CN106378315A (en) * 2016-08-30 2017-02-08 吴正明 Flexible production line
CN106334678A (en) * 2016-08-31 2017-01-18 吴正明 Flexible production line based on visual inspection
CN106391493A (en) * 2016-08-31 2017-02-15 吴正明 Operating method for flexible production line based on visual inspection
CN107560832A (en) * 2017-09-06 2018-01-09 长春国科精密光学技术有限公司 Measuring system and the method for measuring d-cinema projectors optical parametric

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Granted publication date: 20070509