CN100526831C - Optical sensing system and color analysis instrument possessing the optical sensing system - Google Patents
Optical sensing system and color analysis instrument possessing the optical sensing system Download PDFInfo
- Publication number
- CN100526831C CN100526831C CNB2006100759652A CN200610075965A CN100526831C CN 100526831 C CN100526831 C CN 100526831C CN B2006100759652 A CNB2006100759652 A CN B2006100759652A CN 200610075965 A CN200610075965 A CN 200610075965A CN 100526831 C CN100526831 C CN 100526831C
- Authority
- CN
- China
- Prior art keywords
- light
- optical
- sensing system
- optical sensing
- measured
- Prior art date
- 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.)
- Active
Links
Images
Landscapes
- Spectrometry And Color Measurement (AREA)
Abstract
The invention relates to a colorful analyzer, comprising an optical sensitive system, facing an object area on a display panel, for picking up the light emitted from the object area. The optical sensing system comprises a spotlight device, a light homogenize device, and a light receiver, wherein the spotlight device can focus special light beam emitted from the object area to a back focus plant. The homogenize device is at the focus plate to disperse and mix the light focused on the focus plate and homogenize the light in a first preset angle to project the light backwards. The light receiver is at the back of the light homogenize device for receiving the light backward projected by the light homogenize device.
Description
Technical field
The present invention is about a kind of optical sensing system and have the color analysis instrument of this optical sensing system, especially a kind of optical sensing system that can measure the optics and the chromatic characteristic of flat-panel screens and the color analysis instrument with this optical sensing system.
Background technology
The electromagnetic wave of wavelength coverage 380nm to 780nm can allow human eye produce vision, is referred to as visible light wave range.In this wavelength coverage, but the various different colors of human eye perception comprise purple, indigo, indigo plant, green, yellow, orange and red etc.(the International Commission on Illumination of International Commission on Illumination, CIE) tested by human eye in 1931, work out a tristimulus values XYZ mode and express the color-values of each color, quantizing each color relevant apparatus, present as the color of digital camera, display, printer.
Please refer to shown in Figure 1ly, is the synoptic diagram of a typical color analysis instrument 1.This color analysis instrument 1 has a detector 10 and a signal Processing main body 20.These detector 10 inside have an optical sensing system (not icon).This optical sensing system receives the light from the regional MR to be measured on the display panel 2, and the light that is received is converted to electric signal.These electric signals transfer to signal Processing main body 20 by a cable 30 again and handle, to analyze the optics and the chromatic characteristic of display panel 2.
Please refer to shown in Figure 2ly, is the synoptic diagram of a typical optical sensing system 100.This optical sensing system 100 has lens 120, an optical pickup apparatus 140 and optical devices 160 of finding a view.Wherein, optical pickup apparatus 140 has a diffusion sheet 142, three spectrum correction optical filters 144 and three optical receivers 146 side by side.Diffusion sheet 142 is positioned at the focussing plane at lens 120 rears.Spectrum correction optical filter 144 is positioned at the rear of diffusion sheet 142.And three optical receivers 146 lay respectively at the rear of corresponding spectrum correction optical filter 144.By the light that regional MR to be measured radiated, make regional MR imaging to be measured to diffusion sheet 142 via lens 120, be respectively optical receiver 146 via spectrum correction optical filter 144 again and receive.
The optical devices 160 of finding a view have one first light reflection surface 162 and one second light reflection surface 164, wherein, the optical axis A that first light reflection surface 162 is positioned at lens 120 go up and therewith optical axis A accompany miter angle.Light from regional MR to be measured reflexes to second light reflection surface 164 via first light reflection surface 162.Make light be parallel to the direction of optical axis A, the scope of observing regional MR to be measured in order to the user via the reflection of second light reflection surface 164 again.
Quantize presenting of color in order to meet, three spectrum correction optical filters 144 are to cooperate the defined XYZ tristimulus values of International Commission on Illumination, use so that the spectral response functions of its corresponding optical receiver 146 is equivalent to the defined tristimulus values function of International Commission on Illumination.So that three electric signals that optical receiver 146 is exported are represented the XYZ tristimulus values that regional MR to be measured has respectively.
It should be noted that as shown in Figure 2 in regional MR to be measured, the light that diverse location radiated can enter optical sensing system 100 and be the radiation angle that received of optical receiver 146 and inequality.For instance, the light of position P1 radiation the radiation angle a1 that can be received for optical receiver 146, be the below of being partial to the normal direction of display panel; Yet, the light of position P2 radiation the radiation angle a2 that can be received for optical receiver 146, be partial to the top of the normal direction of display panel.For more not having the conventional cathode ray display of directive property, the no doubt unlikely measurement result that influences of difference at this radiation angle.But for display panels with obvious directive property and flexible display, these differences but may cause appreciable impact for the accuracy of measurement result.
Secondly, in the optical devices 160 of finding a view of the optical sensing system 100 of Fig. 2, first light reflection surface 162 is arranged at the optical axis A of lens 120.The existence of this first light reflection surface 162 obviously reduces by 140 light summations that can receive of optical pickup apparatus, and influences the light quantity utilization rate of optical sensing system 100.
Please refer to shown in Figure 3ly, is the synoptic diagram of another typical optical sensing system 200, and this optical sensing system 200 is to be disclosed in the TaiWan, China patent No. 535004.As shown in FIG., this optical sensing system 200 has lens 220, an optical splitter device 230 and an optical pickup apparatus 240.This optical splitter device 230 has an incidence surface 230a and three exiting surface 230b.Wherein, incidence surface 230a is positioned at the focussing plane of lens 220, to receive the light from lens.Three exiting surface 230b then are three spectrum correction optical filters 244 of difference alignment light receiving trap 240, to provide light to optical receiver 246.In addition, as shown in Figure 4, this optical splitter device 230 is to be made of fibre bundle.230a looks it by incidence surface, and this fibre bundle can be divided into six aliquot A 1, A2, A3, A4, A5, A6.Wherein be positioned at the part of opposite side, for example A1 and A4, fibre bundle is to extend to same exiting surface 230b.
Yet, as shown in Figure 4,, must have between each circular optical fiber and can't exist in order to the space g that transmits light because optical splitter device 230 is made of fibre bundle.Again, see it by the cross section of optical fiber 300, shown in Fig. 4 A, optical fiber 300 can be divided into the coating layer 330 of fiber core (core) 310, fine shell (clad) 320 and outer rim.Wherein, in order to the shared area of the fiber core 310 of conducting light, only reach in 1/4th of optical fiber 300 sectional areas usually.Based on this, be projected to via lens 220 in the light of incidence surface 230a, only there is light quantity can be projected to optical receiver 246, and has a strong impact on the light quantity utilization rate of this optical sensing system 200 less than 1/4th.
Secondly, because the optical fiber that optical splitter device 230 must be huge with quantity is assembled bunchy closely, its making is difficult and cost is expensive.If reduce the quantity of optical fiber, no doubt can reduce cost of manufacture, but can increase the space g between each optical fiber, and cause the decline of light quantity utilization rate.
Therefore, under the prerequisite of the accuracy of measuring, how effectively to take into account light quantity utilization rate and cost of manufacture, the demand to measure in the face of low-light level has become current important topic.
Summary of the invention
The object of the present invention is to provide a kind of optical sensing system, be used for a color analyser, can solve the inconsistent problem in radiation angle of the light that zone to be measured is projected to optical sensing system, to solve that display panels has directive property and the difficulty that is unfavorable for measuring.
Another object of the present invention is to provide a kind of optical sensing system, be used for a color analyser, can effectively utilize the illumination that enters optical sensing system, to solve the difficulty of low light amount measurement.
The object of the present invention is achieved like this, and a kind of optical sensing system is used for a color analyser, and this optical sensing system is aligned to the zone to be measured on the display panel, and in order to capture the light that radiate in this zone to be measured, this optical sensing system comprises:
One beam condensing unit is used so that in the light that launch in this zone to be measured, the radiation angle just can converge at a focussing plane at this beam condensing unit rear less than the light of a preset angle;
One smooth homogenizer is positioned at this focussing plane, uses so that converge at the light diffusion of this focussing plane.
This beam condensing unit comprises:
One first lens, with so that this regional imaging to be measured in a focussing plane at this lens rear;
One aperture is arranged at this focussing plane, and this aperture has an aperture diaphragm, and in the light that radiate in this zone to be measured, the radiation angle just can be passed this aperture diaphragm and image in this focussing plane less than the light of one second preset angle.
This beam condensing unit is a telecentric optical system.
This light homogenizer is a full image type diffusion sheet.
This optical sensing system more comprises an optical pickup apparatus, is positioned at the rear of this light homogenizer, with the light of accepting to be throwed backward by this light homogenizer.
This optical pickup apparatus has a plurality of optical receiving sets side by side, the light that throws backward by this light homogenizer of receiving unit respectively, and, the place ahead of each this optical receiving set, collocation has a spectrum correction optical filter respectively.
This optical pickup apparatus has one second lens, and this light homogenizer is positioned at the focussing plane in this second lens the place ahead, and these second lens will be in order to being converted to directional light by all light that this light homogenizer throws backward.
This optical sensing system more comprises a lighting device, is movable to the focussing plane of this beam condensing unit, being thrown light in this zone to be measured.
This optical sensing system more comprises a lighting device, can switch with this aperture, covering the light from this zone to be measured, and is thrown light in this zone to be measured.
This light homogenizer throws after making the light that converges at this focussing plane with the radiation angles greater than 10 degree.
Compared with prior art, the present invention is by the use of telecentric optical system, make regional diverse location to be measured be had identical radiation angle, cause adverse influence for the accuracy and the repeatability of measurement result with the directive property of avoiding display panels by the light that optical sensing system received.Simultaneously, the present invention uses movably the lighting device optical devices of finding a view, to improve the light summation that optical receiver can receive.Thus, the light quantity utilization rate of optical sensing system of the present invention can get a promotion.
Description of drawings
Fig. 1: the synoptic diagram that is a typical color analysis instrument.
Fig. 2: the synoptic diagram that is a typical optical sensing system.
Fig. 3: be the synoptic diagram of another typical optical sensing system.
Fig. 4: be the optical splitter schematic representation of apparatus among Fig. 3.
Fig. 4 A: the schematic cross-section that is a typical optical fiber.
Fig. 5: be the synoptic diagram of tristimulus values of the present invention (three stimulus) type color analysis instrument one preferred embodiment.
Fig. 5 A: be the synoptic diagram of optical sensing system one preferred embodiment of Fig. 5.
Fig. 5 B: in Fig. 5 A, the synoptic diagram of configuration one preferred embodiment of optical receiver.
Fig. 6: be the synoptic diagram of optical sensing system second preferred embodiment of the present invention.
Fig. 7: be the synoptic diagram of optical sensing system the 3rd preferred embodiment of the present invention.
Fig. 8: be the synoptic diagram of optical sensing system the 4th preferred embodiment of the present invention.
Fig. 8 A: be the synoptic diagram of another preferred embodiment of lighting device of Fig. 8.
Drawing reference numeral:
Signal Processing main body 20 optical sensing systems 100
First light reflection surface, 162 second light reflection surfaces 164
Radiation angle a1, a2, b optical sensing system 200
Fiber core 310 fine shells 320
Coating layer 330 optical sensing systems 400
Signal Processing main body 500 beam condensing units 420
Light homogenizer 430 optical pickup apparatus 440
First lens, 422 apertures 424
Second lens, 442 spectrum correction optical filters 444
Optical receiving set 446 runners 470
Spectrum correction optical filter 472 optical detectors 474
Lighting device 450,450 ' switching device shifter 460
Embodiment
Fig. 5 is the block schematic diagram of tristimulus values of the present invention (three stimulus) type color analysis instrument one preferred embodiment.This color analysis instrument has an optical sensing system 400 and a signal Processing main body 500.The to be measured regional MR that this optical sensing system 400 is aimed on display panels, with acquisition from the light of regional MR to be measured and be converted into electric signal.These electric signals again by cable transmission to the performing calculations of signal Processing main body 500, measure and analyze with optics and chromatic characteristic display panel.
Fig. 5 A is the optical sensing system 400 that amplifies in the displayed map 5.As shown in FIG., this optical sensing system 400 has a beam condensing unit 420, one a smooth homogenizer 430 and an optical pickup apparatus 440.Wherein, beam condensing unit 420 usefulness are so that the particular beam that send in this zone to be measured converges at a focussing plane FS1 at its rear.Light homogenizer 430 is positioned at this focussing plane FS1, uses so that converge at the light of focussing plane FS1 to spread mixing, and evenly projection backward in the scope of one first preset angle x.Optical pickup apparatus 440 is positioned at the rear of light homogenizer 430, in order to the light of accepting to be throwed backward by light homogenizer 430.
This beam condensing unit 420 comprises one first lens 422 and an aperture (aperture) 424.Wherein, first lens, 422 usefulness are so that the particular beam that regional MR to be measured sent converges at the focussing plane FS1 at its rear.Aperture 424 is positioned at the focussing plane FS1 at first lens, 422 rears and aims at the optical axis A1 of first lens 422.(aperture stop AS) covers unnecessary light to the aperture diaphragm of this aperture 424, can enter the light of light homogenizer 430 with decision.
It should be noted that, aforementioned beam condensing unit 420 constitutes a telecentric optical system (telecentricoptical system), and make in the light that regional MR to be measured radiated of display panel, the radiation angle is less than the light of the second preset angle y, just can pass aperture diaphragm AS and converges at the focussing plane FS1 light inlet homogenizer 430 of going forward side by side.In other words, this beam condensing unit 420 makes the diverse location of regional MR to be measured throw the light that enters the light homogenizer, has identical radiation angle y.Also therefore, optical sensing system 400 of the present invention goes for having the color analysis of the display panels of obvious directive property.
This optical pickup apparatus 440 has one second lens 442, three optical receiving set 446 and three spectrum correction optical filters 444 side by side.Second lens 442 be positioned at light homogenizer 430 the rear and with the distance of the focal distance f 2 of one times of these second lens 442 of light homogenizer 430 distance.That is to say that light homogenizer 430 is positioned on the focussing plane in second lens, 442 the place aheads.The light that light homogenizer 430 throws backward is converted to directional light via second lens 442 and is projected to spectrum correction optical filter 444 and optical receiving set 446.The place ahead of it should be noted that each optical receiving set 446 disposes a spectrum correction optical filter 444 respectively, and three spectrum correction optical filters 444 correspond to tristimulus values XYZ respectively, with 446 spectral ranges that can receive of decision optical receiving set.
In order to make the light quantity that is projected to each spectrum correction optical filter 444 identical as far as possible, optical axis A2 direction by second lens 442 is seen it, shown in Fig. 5 B, three optical receiving set 446 spectrum correction optical filters 444 corresponding with it side by side are that symcenter is arranged with the optical axis A2 of second lens 442.
This light homogenizer 430 can be a full image type diffusion sheet (holographic diffuser), fully spreads projection backward in the scope that is mixed in the first preset angle x so that converge at the light of focussing plane.Remove the therefore characteristic of element, the light quantity after the diffusion is able on space distribution, obtain the effect of homogenising; Therefore also the element light diameter of accepting face is smaller than the diameter of second lens 442, this element can be considered as the light quantity that its receiving plane is received, spreads backward in a mode near the ideal point light source again, and makes the effect of homogenising better.Received by optical receiving set 446 for the light that light homogenizer 430 is throwed backward again, as far as possible.The angle of this first preset angle x must cooperate the size of second lens 442 and its focal distance f2 and adjust, and in addition, the angle of this first preset angle x also may change to some extent because of the applied means of light homogenizer are different.But with regard to preferred embodiment of the present invention, the first preset angle x is greater than 10 degree, and preferably spends to 25 degree between 15.
It should be noted that aforementioned full image type diffusion sheet only is a preferred embodiment of light homogenize element of the present invention.Smooth homogenizer of the present invention also can use optical fiber, fibre bundle, photoconductive tube or material, shape, the similar optical element of structure to realize.For instance, optical fiber and fibre bundle can be done similarly to arrange according to full image type diffusion sheet outward appearance and diameter, reach the purpose of concentrating light quantity and light being radiated backward with special angle with the design that is similar to the full image type diffusion sheet; And photoconductive tube except that can adopt with above-mentioned design, also can use a funnel-form photoconductive tube, the area of its incidence surface is corresponding to aforementioned full image type diffusion sheet, and the area of exiting surface is corresponding to second lens 442.
Please refer to shown in Figure 6ly, be the synoptic diagram of optical sensing system second preferred embodiment of the present invention.Embodiment compared to Fig. 5 A, use three spectrum correction optical filters 444 and three optical detectors 446 to correspond to the light signal of XYZ tristimulus values with reception, present embodiment is to use runner 470 and the light emitting diode of arranging in pairs or groups, line style and face type charge coupled cell relative photo detectors 474 such as (CCD).As shown in FIG., dispose the spectrum correction optical filter 472 that corresponds to the XYZ tristimulus values on this runner 470.Rotate by runner 470, can make optical detector 474 write down the spectrum that corresponds to the XYZ tristimulus values in regular turn.It should be noted that this runner 470 except the place ahead that can be arranged at second lens 442, also can be arranged at the rear of second lens 442.
Please refer to shown in Figure 7ly, be the synoptic diagram of optical sensing system the 3rd preferred embodiment of the present invention.Present embodiment is to use beam splitter 482 to replace spectrum correction optical filter 472.Beam splitter 482 as grating etc., can be divided into the emergent light of different shooting angles according to wavelength zone with incident light, and suitable optical detector 484 these emergent lights of detecting of arranging in pairs or groups again can be obtained the spectrum that corresponds to the XYZ tristimulus values.
Confirm the detecting position of optical sensing system 400 for the convenience of the users, that is the place of the regional MR to be measured on the display panel, in the 4th embodiment of optical sensing system of the present invention, as shown in Figure 8, be equiped with a lighting device 450 movably.The optical axis A1 direction that this lighting device 450 is movable to the focussing plane FS1 at first lens, 442 rears and aims at first lens is to throw light on to regional MR to be measured.With regard to a preferred embodiment, when 450 couples of regional MR to be measured of this lighting device throw light on, covered and can't be entered light homogenizer 430 from the light of regional MR to be measured.In addition, as shown in Figure 8, lighting device 450 is on a switching device shifter 460 with aperture 424, by the change action of switching device shifter 460, will throw light on to regional MR to be measured with decision, or make the light from regional MR to be measured enter light homogenizer 430.Again with regard to another preferred embodiment of this lighting device, shown in Fig. 8 A, this aperture 424 can divide with lighting device 450 ' and is arranged.Wherein, the stationkeeping of aperture 424, only lighting device 450 ' is removable to determine whether will throw light on to regional MR to be measured.
Traditional optical sensing system compared to Fig. 2, the present invention is by the use of telecentric optical system, the light that regional MR diverse location to be measured is received by optical sensing system 100 has identical radiation angle, causes adverse influence with the directive property of avoiding display panels for the accuracy and the repeatability of measurement result.Simultaneously, the present invention uses the movably optical devices 160 of finding a view of lighting device 450 replacement Fig. 2, to improve 446 light summations that can receive of optical receiver.Thus, the light quantity utilization rate of optical sensing system of the present invention can get a promotion.
Compared to the traditional optical sensing system 200 of Fig. 3, the present invention passes through the use of light homogenizer 430, and need not use the optical splitter device 230 of high cost of manufacture thereby the cost of manufacture that can significantly reduce.Secondly,, light provides to optical receiver 246 though being mode with total reflection in the optical fiber of optical splitter device 230,, the fiber core (please simultaneously with reference to Fig. 4 and Fig. 4 A) that can enter optical fiber less than 1/4th light is only arranged.In comparison, in optical sensing system 400 of the present invention, the light that passes aperture 424 fully provides to the full image type diffusion sheet, provides to optical receiver 446 again, thereby preferable light quantity utilization rate can be provided.
Though the present invention discloses with specific embodiment; but it is not in order to limit the present invention; any those skilled in the art; the displacement of the equivalent assemblies of under the prerequisite that does not break away from design of the present invention and scope, having done; or, all should still belong to the category that this patent is contained according to equivalent variations and modification that scope of patent protection of the present invention is done.
Claims (8)
1. an optical sensing system is used for a color analyser, and this optical sensing system is aligned to the zone to be measured on the display panel, in order to capture the light that radiate in this zone to be measured, it is characterized in that this optical sensing system comprises:
One beam condensing unit comprises: one first lens, with so that this regional imaging to be measured in a focussing plane at this lens rear; One aperture is arranged at this focussing plane, and this aperture has an aperture diaphragm, and in the light that radiate in this zone to be measured, the radiation angle just can be passed this aperture diaphragm less than the light of a preset angle and converge at the focussing plane at this beam condensing unit rear;
One smooth homogenizer is positioned at this focussing plane, uses so that converge at the light diffusion of this focussing plane;
One optical pickup apparatus is positioned at the rear of this light homogenizer, with the light accepting to throw backward by this light homogenizer to measure and to analyze.
2. optical sensing system as claimed in claim 1 is characterized in that: this beam condensing unit is a telecentric optical system.
3. optical sensing system as claimed in claim 1 is characterized in that: this light homogenizer is a full image type diffusion sheet.
4. optical sensing system as claimed in claim 1, it is characterized in that: this optical pickup apparatus is a plurality of optical receiving sets side by side, the light that throws backward by this light homogenizer of receiving unit respectively, and, the place ahead of each this optical receiving set, collocation has a spectrum correction optical filter respectively.
5. optical sensing system as claimed in claim 1, it is characterized in that: this optical pickup apparatus has one second lens, this light homogenizer is positioned at the focussing plane in this second lens the place ahead, and these second lens will be in order to being converted to directional light by all light that this light homogenizer throws backward.
6. optical sensing system as claimed in claim 1 is characterized in that: this optical sensing system more comprises a lighting device, can move to the focussing plane of this beam condensing unit, being thrown light in this zone to be measured.
7. optical sensing system as claimed in claim 1 is characterized in that: this optical sensing system more comprises a lighting device, can switch with this aperture, covering the light from this zone to be measured, and is thrown light in this zone to be measured.
8. optical sensing system as claimed in claim 1 is characterized in that: this light homogenizer throws after making the light that converges at this focussing plane with the radiation angles greater than 10 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100759652A CN100526831C (en) | 2006-04-21 | 2006-04-21 | Optical sensing system and color analysis instrument possessing the optical sensing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100759652A CN100526831C (en) | 2006-04-21 | 2006-04-21 | Optical sensing system and color analysis instrument possessing the optical sensing system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101059396A CN101059396A (en) | 2007-10-24 |
| CN100526831C true CN100526831C (en) | 2009-08-12 |
Family
ID=38865613
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100759652A Active CN100526831C (en) | 2006-04-21 | 2006-04-21 | Optical sensing system and color analysis instrument possessing the optical sensing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100526831C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11120545B2 (en) | 2019-12-18 | 2021-09-14 | Industrial Technology Research Institute | Method for measuring hole provided in workpiece |
| JP2022183101A (en) * | 2021-05-28 | 2022-12-08 | 致茂電子股▲分▼有限公司 | Optical measurement device |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103018007A (en) * | 2011-09-22 | 2013-04-03 | 致茂电子股份有限公司 | Optical sensing system and devices |
| CN105652483B (en) * | 2016-03-16 | 2019-07-16 | 武汉精测电子集团股份有限公司 | A kind of liquid crystal display optical parameter measurement method and device based on fiber optic conduction |
| CN115909924A (en) * | 2022-08-23 | 2023-04-04 | 冠捷电子科技(福建)有限公司 | Online point inspection testing method and device for color analyzer |
-
2006
- 2006-04-21 CN CNB2006100759652A patent/CN100526831C/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11120545B2 (en) | 2019-12-18 | 2021-09-14 | Industrial Technology Research Institute | Method for measuring hole provided in workpiece |
| JP2022183101A (en) * | 2021-05-28 | 2022-12-08 | 致茂電子股▲分▼有限公司 | Optical measurement device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101059396A (en) | 2007-10-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7626688B2 (en) | Optical measuring system with a high-speed optical sensing device enabling to sense luminous intensity and chromaticity | |
| CN100526831C (en) | Optical sensing system and color analysis instrument possessing the optical sensing system | |
| CN101431087B (en) | Low height imaging system and associated methods | |
| CN100549669C (en) | Enzyme mark instrument spectrophotometric detecting optical system and diaphragm thereof and optical filter wheel | |
| CN114858279B (en) | Coaxial self-aiming spectral measurement system and measurement method | |
| WO2010003362A1 (en) | Brighness measurement device | |
| CN109387226B (en) | Star simulator system | |
| CN201218753Y (en) | Brightness measurement apparatus | |
| CN101995387B (en) | Multi-functional ultraviolet-visible spectrometer | |
| CN110553955B (en) | Particle size distribution measuring method and system based on light scattering field | |
| CN108919472B (en) | Multi-spectroscope high-sensitivity coaxial optical lens cone | |
| CN101344430B (en) | High-speed optical sensing apparatus and system capable of simultaneously sensing luminous intensity and chroma | |
| TWI290220B (en) | An optical sensing system and a color analyzer with the optical sensing system | |
| CN106908144B (en) | A kind of ultraweak starlight illumination measuring device and method | |
| WO2024032154A1 (en) | Apparatus for visual aiming spectrum measurement, and optical detection device | |
| CN109668636B (en) | Imaging type spectrum radiation receiving and light splitting integrated device | |
| WO2022116412A1 (en) | Dot matrix spectrum measurement apparatus and method, and area array chrominance measurement apparatus and method | |
| CN105651747B (en) | It is a kind of for pinpoint capture flame radical fluorescence intensity measuring device | |
| CN208721249U (en) | A kind of optic probe | |
| CN209198757U (en) | A kind of more light splitting mirror high sensitivity axis optical lens barrels | |
| US6737637B1 (en) | Illuminator for illuminating multiple targets | |
| CN106124455A (en) | Device for measuring retroreflection coefficient | |
| US3979596A (en) | Coronametric instrument for aerosol measurements | |
| CN211426302U (en) | Laser processing quality monitoring system for multi-path optical signal detection | |
| CN116088260B (en) | 360-degree all-round inner and outer wall detection lens structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |