CN103323104A

CN103323104A - Optical measurement system, bearing structure and optical measurement method

Info

Publication number: CN103323104A
Application number: CN2012101492593A
Authority: CN
Inventors: 洪健翔; 叶展良
Original assignee: OTO Photonics Inc
Current assignee: OTO Photonics Inc
Priority date: 2012-03-23
Filing date: 2012-05-15
Publication date: 2013-09-25
Anticipated expiration: 2032-05-15
Also published as: TW201339550A; TWI468651B; CN103323104B

Abstract

The invention provides an optical measurement system, a bearing structure and an optical measurement method, wherein the optical measurement system comprises an optical detection module and a signal integration unit. The light detection module detects the light intensity of at least part of the light emitting areas at different detection positions aiming at the light emitting areas respectively to obtain a plurality of light intensity signals respectively corresponding to the detection positions. The signal integration unit integrates the light intensity signals to obtain an overall light intensity evaluation value related to the light emitting areas.

Description

Optical measurement system and bearing structure and optical measurement method

Technical field

The invention relates to a kind of measurement system, method for measurement and bearing structure, and particularly relevant for a kind of optical measurement system and bearing structure and optical measurement method.

Background technology

Along with the progress of modern semiconductors science and technology, light emitting diode (light emitting diode, LED) is used in a large number, so that the required light sources of electronic installation such as traffic signals, large display screen, scanner, liquid crystal display to be provided.

Before after lighting source completes, dispatching from the factory, usually need utilize measuring equipment to measure the light intensity of the light that lighting source sends, whether can normal operation to judge lighting source.LED optical strip (LED light bar) or light emitting diode matrix light source have a plurality of light emitting diodes usually.When measuring LED optical strip or array light source with traditional measuring equipment in single position, because the light emitting diode that is positioned at diverse location contributes to the light intensity of this single position, such as irradiance (irradiance), not identical, therefore what light emitting diodes usually can't differentiate by measured single light intensity value has can't normal operation, or differentiates the loss that this LED optical strip or array light source have how many luminous fluxes (luminous flux) or radiation flux (radiant flux).

In addition, even measure traditional fluorescent lamp pipe or planar light source, because it is also not identical that the different luminous zone of fluorescent tube or planar light source contributes to the light intensity that above-mentioned individual quantities location puts, when therefore utilizing traditional measuring equipment to measure traditional fluorescent lamp pipe or planar light source, still can't differentiate the loss that this LED optical strip or array light source have how many luminous fluxes (luminous flux) or radiation flux (radiant flux).

If adopt integrating sphere (integrating sphere) to measure lighting source, along with the length of lighting source is longer, the volume of the integrating sphere that adopts also need be healed greatly.When integrating sphere when measuring fluorescent tube, its diameter is required to be 3 times of fluorescent tube length usually.Although integrating sphere can record accurately luminous flux or radiation flux, bulky integrating sphere involves great expense, and safeguards also difficult, the expense expenditure of this meeting recruitment measurement equipment.In addition, bulky integrating sphere will take too much space, and so that the planning of production line is comparatively difficult.

Summary of the invention

The invention provides a kind of optical measurement system, it can record resulting overall light intensity assessed value after the overall light intensity weight distribution homogenization that luminescent condition and light testing conditions are produced.

The invention provides a kind of optical measurement method, it can record resulting overall light intensity assessed value after the overall light intensity weight distribution homogenization that luminescent condition and light testing conditions are produced.

One embodiment of the invention provide a kind of optical measurement system, comprise light detection module and signal integration unit.The light detection module detects respectively the light intensity of at least part of these luminous zones in a plurality of different detection positions for a plurality of luminous zones, to obtain corresponding respectively to a plurality of light intensity signals of these detection positions.These light intensity signals are integrated in the signal integration unit, to obtain the overall light intensity assessed value relevant with these luminous zones.

One embodiment of the invention comprise the following steps for a kind of optical measurement method.For a plurality of luminous zones, detect respectively the light intensity of at least part of these luminous zones in a plurality of different detection positions, to obtain corresponding respectively to a plurality of light intensity signals of these detection positions.Integrate these light intensity signals, to obtain the overall light intensity assessed value relevant with these luminous zones.

One embodiment of the invention provide a kind of bearing structure of optical measurement system, comprise bracing frame and at least one fabricated section.Fabricated section is installed at least one photodetector of optical measurement system on the bracing frame movably or immovably, allow photodetector so that a plurality of different detection positions to be provided in these detection positions detections and obtain respectively a plurality of light intensity signals, wherein these light intensity signals are integrated in the signal integration unit of optical measurement system.

One embodiment of the invention provide a kind of optical measurement system, in order to measure light-emitting device.Optical measurement system comprises light detection module and signal integration unit.The light detection module detects respectively the light intensity of at least part of light-emitting device in a plurality of different detection positions for light-emitting device, to obtain corresponding respectively to a plurality of light intensity signals of these detection positions.These light intensity signals are integrated in the signal integration unit, to obtain the overall light intensity assessed value relevant with light-emitting device.

Based on above-mentioned, in the optical measurement system and optical measurement method of embodiments of the invention, be to detect respectively the light intensity of these luminous zones or light-emitting device in a plurality of different detection positions, and integrate resulting these light intensity signals to obtain the overall light intensity assessed value.Therefore, this overall light intensity assessed value is possible luminous of position, these detection positions at these luminous zones or light-emitting device and other or to detect overall light intensity weight distribution that optical condition produces comparatively measured in the situation of homogenization.Thus, this overall light intensity assessed value helps to differentiate light-emitting device or these luminous zones are the light losses what units are arranged, or differentiates and to have the luminous zone of how much quantity can't normal operation.In addition, in the bearing structure of embodiments of the invention, utilize fabricated section that photodetector is installed on the bracing frame movably or immovably, it is conducive to make optical measurement system to realize the high measurement of accuracy.

For above-mentioned feature and advantage of the present invention can be become apparent, embodiment cited below particularly, and cooperate accompanying drawing to be described in detail below.

Description of drawings

Figure 1A is the schematic side view of optical measurement system and the bearing structure of one embodiment of the invention;

Figure 1B illustrates when the optical measurement system of Figure 1A measures the light-emitting device of normal operation, total sensitization intensity distribution function schematic diagram of the sensitization intensity distribution function of each photodetector and all photodetectors;

Fig. 1 C illustrates the boundary condition schematic diagram of the photodetector in the optical measurement system of Figure 1A;

Fig. 2 A is the schematic side view of optical measurement system and the bearing structure of another embodiment of the present invention;

Fig. 2 B illustrates when the optical measurement system of Fig. 2 A measures the light-emitting device of normal operation, total sensitization intensity distribution function schematic diagram of the sensitization intensity distribution function of each photodetector and all photodetectors;

Fig. 3 A is the schematic side view of optical measurement system and the bearing structure of another embodiment of the present invention;

Fig. 3 B illustrates when the optical measurement system of Fig. 3 A measures the light-emitting device of normal operation, total sensitization intensity distribution function schematic diagram of the sensitization intensity distribution function of each photodetector and all photodetectors;

Fig. 4 A is the optical measurement system of an again embodiment of the present invention and the schematic side view of bearing structure;

Fig. 4 B illustrates when the optical measurement system of Fig. 4 A measures the light-emitting device of normal operation, total sensitization intensity distribution function schematic diagram of the sensitization intensity distribution function of each photodetector and all photodetectors;

Fig. 5 A is the schematic side view of optical measurement system and the bearing structure of another embodiment of the present invention;

Fig. 5 B illustrates when the optical measurement system of Fig. 5 A measures the light-emitting device of normal operation, total sensitization intensity distribution function schematic diagram of the sensitization intensity distribution function of each photodetector and all photodetectors;

Fig. 6 A is the schematic side view of optical measurement system and the bearing structure of another embodiment of the present invention;

Fig. 6 B illustrates when the optical measurement system of Fig. 6 A measures the light-emitting device of normal operation, total sensitization intensity distribution function schematic diagram of the sensitization intensity distribution function of each photodetector and all photodetectors;

Fig. 7 A is the schematic side view of optical measurement system and the bearing structure of another embodiment of the present invention;

Fig. 7 B illustrates when the optical measurement system of Fig. 7 A measures the light-emitting device of normal operation, total sensitization intensity distribution function schematic diagram of the sensitization intensity distribution function of each photodetector and all photodetectors;

Fig. 8 is the optical measurement system of an again embodiment of the present invention and the schematic side view of bearing structure;

Fig. 9 is the schematic side view of optical measurement system and the bearing structure of another embodiment of the present invention;

Figure 10 is the schematic side view of optical measurement system and the bearing structure of another embodiment of the present invention;

Figure 11 is the schematic side view that optical measurement system, bearing structure and the optical measurement system of an again embodiment of the present invention measures light-emitting device;

Figure 12 is the process flow diagram of the optical measurement method of one embodiment of the invention.

Description of reference numerals:

50,50j: light-emitting device;

52,52j: luminous zone;

54: light-emitting component;

56: the strip carrier;

100,100a, 100b, 100c, 100d, 100e, 100f, 100g, 100h, 100i: optical measurement system;

110,110h, 110i: light detection module;

112,124i: photodetector;

113: fan diffuser;

120,120i: signal integration unit;

122i: sphere of reflection;

126i, 112i: optical fiber;

130: reverberator;

140: power supply unit

200,200a, 200b, 200c, 200d, 200e, 200f, 200g, 200h, 200i: bearing structure;

210: carrier;

220,220a, 220b, 220c, 220d, 220e, 220f, 220g, 220h, 220i: bracing frame;

224h: slide rail;

230,230h, 230i: fabricated section;

240: actuator;

A: mobile route;

C1, C1a, C1b, C1c, C1d, C1e, C1f, C2, C2a, C2b, C2c, C2d, C2e, C2f, C3, C3a, C3b, C3c, C3d, C3e, C3f, C4, C4a, C4b, C4c, C4d, C4e, C4f, CT, CTa, CTb, CTc, CTd, CTe, CTf: curve;

D1: the detection side to;

E1: first end;

E2: the second end;

G, Gi: light intensity signal;

H, H1e, H1g, H2e, H2g: distance;

K: crest;

L: length;

N1, N2: point;

P, P1, P1e, P1f, P1g, P1h, P2e, P2f, P2g, P2h, P3h, P4h, Pd: detection position;

R: reference line;

S1: boundary position;

S110, S120: step;

S2: position;

T, T ', T1, T2: pitch;

θ: angle.

Embodiment

Figure 1A is the schematic side view of optical measurement system and the bearing structure of one embodiment of the invention, and Figure 1B illustrates when the optical measurement system of Figure 1A measures the light-emitting device of normal operation, total sensitization intensity distribution function schematic diagram of the sensitization intensity distribution function of each photodetector and all photodetectors.Fig. 1 C illustrates the boundary condition schematic diagram of the photodetector in the optical measurement system of Figure 1A.Please first with reference to Figure 1A, the optical measurement system 100 of the present embodiment for example is a plurality of luminous zones 52 that measure light-emitting device 50 in order to measure a plurality of luminous zones 52.Yet in other embodiments, these luminous zones 52 also can be independent separately, and belong to respectively different light-emitting devices.In the present embodiment, optical measurement system 100 comprises light detection module 110 and signal integration unit 120.Light detection module 110 detects respectively the light intensity of at least part of these luminous zones 52 (or at least part of light-emitting device 50) at a plurality of different detection position P for these luminous zones 52 (or for example for whole light-emitting device 50), to obtain corresponding respectively to a plurality of light intensity signal G of these detection positions P.In the present embodiment, light detection module 110 detects the light intensity of all luminous zones 52 at each detection position P.

In the present embodiment, each luminous zone 52 is contributed by a light-emitting component 54, and wherein light-emitting component 54 for example is light emitting diode, and these light emitting diodes are configured on the strip carrier 56, to form light-emitting diode lamp tube.Yet in other embodiments, light-emitting component 54 can also be other suitable light-emitting components.In the present embodiment, light-emitting device 50 for example is LED optical strip (LED light bar), that is these light-emitting components 54 are along line spread.Yet in other embodiments, these light-emitting components 54 can also be to arrange along the parallel lines more than two, or line up two-dimensional array.Yet in other embodiments, these luminous zones 52 can also be to be bonded into continuously continuous isolychn or light-emitting area, that is these luminous zones 52 form continuous line source or area source.

In the present embodiment, light detection module 110 comprises a plurality of photodetectors 112, and it is configured in respectively on the P of these detection positions.In addition, in the present embodiment, these photodetectors 112 respectively are a spectrometer for example, and its measured light intensity for example is the light intensity in the spectrum, also can record different wave length intensity.Yet in other embodiments, these photodetectors 112 can also be light intensity meters, be irradiance meter for example, and its measured light intensity for example are irradiance (irradiance).Perhaps, in other embodiments, photodetector 112 measured light intensities (light intensity) can also be the light intensities of other kinds, such as illumination (illuminance), radiance (radiance), briliancy (luminance), radiation intensity (radiant intensity), luminous intensity (luminous intensity) etc.The overall light intensity assessed value that moreover these light intensity signals G are integrated in signal integration unit 120,52 relevant with these luminous zones to obtain (or be correlated with light-emitting device 50).In the present embodiment, the light inlet of each photodetector 112 disposes fan diffuser 113, for example is cosine corrector (cosine corrector), and it can all be directed to the light of all directions incident in the photodetector 112.In another embodiment, also can not adopt cosine corrector or other fan diffusers, then photodetector 112 can have limited receipts optic angle degree scope.

Referring again to Figure 1A and Figure 1B, the transverse axis among Figure 1B is the position, and wherein the central point of light-emitting device 50 is that to drop on the position be 0 place, and the longitudinal axis is sensitization intensity.In the present embodiment, sensitization intensity for example is irradiance.When light detection module 110 when detection position P detects the light-emitting device 50 (it has a plurality of luminous zones 52 of normal operation) of normal operation, the different luminous zone 52 of the light-emitting device 50 of normal operation (or a plurality of diverse locations on the light-emitting device 50 of normal operation) contribution has a sensitization intensity distribution function (such as curve C 1, C2, C3 and C4) to the sensitization intensity of light detection module 110 with respect to the position (or with respect to these diverse locations on the light-emitting device 50) of these different luminous zones 52.In addition, these sensitization intensity distribution functions of these detection positions P (being curve C 1, C2, C3 and C4) add the General Logistics Department becomes total sensitization intensity distribution function (being curve C T).

In the present embodiment, these luminous zones 52 are arranged on the reference line R.Yet in another embodiment, these luminous zones 52 can also be to be arranged on the reference surface, and wherein reference surface for example is to comprise reference line R and in fact perpendicular to the plane of the drawing of Figure 1A.The length L of the light-emitting device 50 in Figure 1A is 120 centimetres, photodetector 112 to the vertical range H of reference line R (or reference surface) be 30 centimetres, and when the pitch of photodetector 112 (pitch) T is 30 centimetres, can obtain these curve C 1, C2, C3 and C4 via analog computation.These curve C 1, C2, C3 and C4 (namely representing the sensitization intensity distribution function) have considered that the angle of radiation of luminous zone 52 distributes and the sensitivity angular distribution of photodetector 112 is calculated.In addition, the physical significance of sensitization intensity distribution function is that diverse location on the light-emitting device 50 is contributed the distribution to the sensitization intensity weight of the photodetector 112 of correspondence.In other words, the diverse location at least part of light-emitting device 50 is contributed to the weight of the sensitization intensity of a certain specific photodetector 112 not identical.

If only with a photodetector 112 when detection position P detects the light intensity that light-emitting device 50 provides, when the brightness decay of the luminous zone 52 under this photodetector 112 or this luminous zone 52 are damaged and can't be luminous the time, the attenuation degree of 112 actual light intensities that record of photodetector can be larger, and this is because 52 contributions of the luminous zone under the photodetector 112 are heavier to the sensitization intensity weight of photodetector 112.Otherwise, tiltedly the brightness decay of the luminous zone 52 of below or this luminous zone 52 are damaged and can't be luminous the time when this photodetector 112, the attenuation degree of 112 actual light intensities that record of photodetector can be less, and this is because photodetector 112 is tiltedly contributed lighter to the sensitization intensity weight of photodetector 112 in the luminous zone 52 of below.In other words, the effectiveness that the luminous zone 52 of the lesser amt under the photodetector 112 is damaged or the light intensity decays of these luminous zone 52 less degree produces the attenuation degree of the measured light intensity of photodetector 112 is equivalent to photodetector 112 and tiltedly damages or this luminous zone 52 effectiveness of producing of light intensity decays largely the luminous zone 52 of a greater number of below.Thus, single from the measured light intensity of photodetector 112 attenuation degree and can't judge that the luminous zone 52 how much quantity is arranged the light-emitting device 50 damages, or the decay of the radiation flux (or luminous flux) of how many units is arranged.

Yet, in the present embodiment, signal integration unit 120 is these light intensity signals G that integrate from these photodetectors 112 of light detection module 110, obtaining the overall light intensity assessed value, what therefore affect this overall light intensity assessed value is resulting total sensitization intensity distribution function (its curve is shown in curve C T) after the sensitization intensity distribution function addition with curve C 1, C2, C3 and C4 representative.Can be learnt by Figure 1B, the uniformity coefficient of total sensitization intensity distribution function (being curve C T) is much larger than the uniformity coefficient of the sensitization intensity distribution function of each other curve C 1, C2, C3, C4.Thus, the weight that the overall light intensity assessed value that the position of different luminous zones 52 is measured all photodetectors 112 on the light-emitting device 50 is contributed can be more consistent.So, attenuation degree by the overall light intensity assessed value is easier to just judge or infer that generally speaking light-emitting device 50 is to have the luminous zone 52 of how much quantity to damage, or generally speaking these luminous zones 52 that are easier to judge or infer light-emitting device 50 are the decay of radiation flux (or luminous flux) that how many units are arranged.In the present embodiment, each light intensity signal G is electric signal, and signal integration unit 120 is arithmetic element.Arithmetic element is made calculation process with these light intensity signals G, to obtain the overall light intensity assessed value.Particularly, in the present embodiment, arithmetic element adds up these light intensity signals G, to obtain the overall light intensity assessed value.In other words, in the present embodiment, the physical significance of overall light intensity assessed value is the totalling in the measured light intensity in all detection positions.

In the present embodiment, these detection positions P is positioned at the same side of light-emitting device 50.For example, can find out from Figure 1A, these detection positions P is positioned at the top of light-emitting device 50 equally.The effect that signal integration unit 120 adds up these photodetectors 112 these measured light intensity signals of light detection module 110 is similar to the integrating effect of integrating sphere, therefore the optical measurement system 100 of the present embodiment has realized being similar to the effect of one-sided integration, but the volume of the optical measurement system 100 of the present embodiment can be less than existing volume in order to the integrating sphere that measures fluorescent tube or light-emitting section.Therefore, the optical measurement system of employing the present embodiment will help the planning of production line.Moreover because the volume of existing integrating sphere is large, it is high that the reflectivity of the inside surface of integrating sphere is wanted, and for to make the inside surface of integrating sphere keep high reflectance, so the manufacturing cost of integrating sphere and maintenance cost are all high.In comparison, because the small volume of the optical measurement system 100 of the present embodiment, optical measurement system 100 can not adopt the reflecting surface that area is large and reflectivity is high, and can keep the high reflectance of this reflecting surface, so the manufacturing cost of the optical measurement system 100 of the present embodiment and maintenance cost can reduce.

In addition, in the present embodiment, be to adopt spectrometer as photodetector 112, and spectrometer can record the light intensity of the light of different frequency.Therefore, when there was multiple different color luminous zone 52, the measured light intensity corresponding to a plurality of different frequency scopes of spectrometer can be integrated respectively in signal integration unit 120.Particularly, when ruddiness, green glow and blue light can be sent in luminous zone 52, signal integration unit 120 can all spectrometers are measured the light intensity of red range integrate, and obtain overall light intensity assessed value corresponding to ruddiness, and the light intensity of the green range that all spectrometers are measured is integrated, and obtain overall light intensity assessed value corresponding to green glow, also the light intensity of the blue light range that all spectrometers are measured is integrated, and obtains the overall light intensity assessed value corresponding to blue light.Thus, optical measurement system 100 can judge just the light intensity of the luminous zone 52 of which kind of color has decay and how many units that decay, and perhaps judges it is that the luminous zone 52 of which kind of color has and damages or damage several.

Moreover, the light-emitting device 50 that measures when the optical measurement system 100 of the present embodiment is during for light-emitting diode lamp tube, because light emitting diode has high directivity, it typically is one-sided luminously, so the one-sided storage effect of optical measurement system 100 is fit to measure light-emitting diode lamp tube.In addition, because each luminous zone 52 of light-emitting diode lamp tube is provided by a light emitting diode, and the common difference of the optical parametric of these luminous zones 52 is little, therefore when measuring with the optical measurement system 100 of the present embodiment, just easily judging is to have the light emitting diode of how much quantity to damage.

In the present embodiment, can utilize bearing structure 200 to set up optical measurement system 100, bearing structure 200 comprises bracing frame 220 and at least one fabricated section 230 (being as example among Figure 1A take a plurality of fabricated sections 230).Fabricated section 230 is installed in photodetector 112 on the bracing frame 220 movably or immovably, allows photodetector 112 detect at these detection positions P so that these detection positions P to be provided.In the present embodiment, fabricated section 230 for example is fixture, and it immovably is fixed on these photodetectors 112 on the bracing frame 220, and is fixed on the P of these detection positions.Fabricated section 230 is anchor clamps, locking component or other suitable fixtures for example.In addition, fabricated section 230 can with bracing frame 220 one-body molded or each self-forming.In the present embodiment, bearing structure 200 also comprises carrier 210, and it carries light-emitting device 50.In the present embodiment, carrier 210 is plummer or loading plate for example, and bracing frame 220 can be fixed on the carrier 210, but this only is a kind of selection embodiment.In other embodiments, carrier 210 for example is conveying belt or other conveying devices, and it can be delivered to light detection module 110 times for measurement with different light-emitting device 50 in the different time.Thus, the optical measurement system 100 of the present embodiment just can be arranged on the production line and realize large amount measurement.In addition, bracing frame 220 also can be arranged with carrier in 210 minutes.

In addition, please refer to Figure 1A, Figure 1B and Fig. 1 C, in the present embodiment, when each of a plurality of detection position P1s that are positioned at edge of light detection module 110 in the P of these detection positions detects the light-emitting device 50 of normal operation, different luminous zone 52 contribution on the light-emitting device 50 of normal operation has edge sensitization intensity distribution function (be the curve C 1 and curve C 4 that Figure 1B illustrates, and among Fig. 1 C take curve C 1 as example) to the sensitization intensity of light detection module 110 with respect to the position of these different luminous zones 52.These detection positions P1 all drops within peaked half corresponding a plurality of boundary position S1 of these edge sensitization intensity distribution functions (being curve C 1 and C4) of these detection positions P1 these luminous zones 52.For example, the maximal value of the edge sensitization intensity distribution function of curve C 1 representative is the light intensity of the crest K of curve C 1, and this peaked half for example be the light intensity of the some N1 on the curve C 1.Wherein, each boundary position S1 be in peaked half (such as the some N1 on the curve C 1 and the light intensity of N2) corresponding a plurality of position (comprising the position that S1 and S2 indicate among Fig. 1 C) of edge sensitization intensity distribution function away from the center person (being the position that S1 indicates among Fig. 1 C) of the integral body of these luminous zones 52.In other words, the distance between boundary position S1 and the position S2 is the halfwidth (full width at half maximum, FWHM) of curve C 1.When these luminous zones 52 are arranged in two-dimensional array, two positions that just S1 and S2 indicate among Fig. 1 C, peaked half corresponding position of an above-mentioned edge sensitization intensity distribution function, but these peaked half corresponding positions have numerous and are linked to be curve at two-dimensional space.Still can find at least one point (being at least one position) on this curve is away from the center of the integral body of these luminous zones 52, and this point (being this position) is boundary position S1, and is these luminous zones that two-dimensional array arranges and all is positioned within the boundary position S1 of all edge sensitization intensity distribution functions.

In the present embodiment, when these luminous zones 52 of light-emitting device 50 are positioned in two boundary position S1 of curve C 1 and curve C 4, perhaps with another angle, when the configuration of these detection positions P and so that boundary position S1 when being positioned at beyond all these luminous zones 52, the uniformity coefficient of total sensitization intensity distribution function (being curve C T) can be comparatively desirable, and can reach the effect of more approximate one-sided integration.In addition, when these 52 tops, luminous zone are provided with the diffusion lampshade, that is be provided with between luminous zone 52 and the detection position P when spreading lampshade, the optical measurement system 100 of the present embodiment also can record the overall light intensity assessed value of light-emitting device 50.This is because the light that the diffusion lampshade sends luminous zone 52 spreads more evenly, and still can reach uniformly total sensitization intensity distribution function, even can promote the uniformity coefficient of total sensitization intensity distribution function.

In the present embodiment, these detection positions P is dropped on make total sensitization intensity distribution function (being curve C T) greater than any the uniformity coefficient in these sensitization intensity distribution functions (being curve C 1, C2, C3 and C4), wherein uniformity coefficient be defined as minimum value in total sensitization intensity distribution function (or sensitization intensity distribution function) divided by maximal value after resulting ratio.In the present embodiment, in order to reach the good effect that is similar to one-sided integration, these detection positions P is dropped on make the uniformity coefficient of total sensitization intensity distribution function (being curve C T) more than or equal on 80% the position.Perhaps, from another angle, in the present embodiment, each luminous zone 52 contribution is total value to the light intensity summation of all these detection positions P, and these total value of these luminous zones 52 are essentially the same as each other.For example, can light these luminous zones 52 one of them, but do not light other luminous zones 52, this moment, all measured light intensities of detection position P added the General Logistics Department, were the total value of this luminous zone that is lit 52.Then, can light another luminous zone 52, and not light other luminous zones 52, so just can obtain the total value of this another luminous zone of being lit.After all luminous zones 52 are all lighted separately and detected, can find that in the present embodiment these total value of these luminous zones 52 are essentially the same as each other.

In the present embodiment, these detection positions P of providing of fabricated section 230 drops on the position that these total value of making these luminous zones 52 are essentially the same as each other.When these total value of these luminous zones 52 were essentially the same as each other, then each luminous zone 52 contribution did not have substantial variation along with the difference of 52 positions, luminous zone to the light intensity of whole smooth detection module 110.Thus, when the overall light intensity assessed value descends, just being conducive to assess light-emitting device 50 generally speaking is to have the luminous zone 52 of how much quantity to damage, or generally speaking assessment light-emitting device 50 is the decay of radiation flux (or luminous flux) that how many units are arranged.The meaning that is essentially the same as each other of these total value is not that these total value of expression are fully equal herein, but represents that generally speaking the tolerance of the maximum difference of these total value will be to have the luminous zone 52 of how much quantity to damage or have in the scope of decay of radiation flux (or luminous flux) of how many units still assessing light-emitting device 50.For example, the maximum difference of these total value be in these total value peaked 20% in.

In the present embodiment, the optical characteristics of these luminous zones 52 is essentially the same as each other.For example, the light-emitting area of these luminous zones 52 is essentially the same as each other, and the luminous intensity of these luminous zones 52, luminous flux and the distribution of light shape are essentially the same as each other.In addition, in the present embodiment, each luminous zone 52 is at least part of not identical to the distance of different these detection positions P.

In the present embodiment, optical measurement system 100 comprises power supply unit 140, is electrically connected to light-emitting device 50, and is luminous with the luminous zone 52 that drives light-emitting device 50.The optical measurement system 100 of the present embodiment also can be in order to measure the heat fade degree of light-emitting device 50.For example, can after just having lighted light-emitting device 50, power supply unit 140 namely measure at once the overall light intensity assessed value of light-emitting device 50.Then, (after for example lighting 72 hours) measures its overall light intensity assessed value again after light-emitting device 50 is lighted a period of time.After former and later two overall light intensity assessed values are subtracted each other, can learn the heat fade degree of light-emitting device 50.More accurate for the measurement that makes the heat fade degree, during twice measurement, except the asynchronism(-nization) that light-emitting device 50 has been lighted, other conditions all should be tried one's best unanimously, and for example the putting position of light-emitting device 50 all should be consistent.Because the thermal decay of the light that light emitting diode sends is comparatively obvious, when light-emitting device 50 comprised light emitting diode, optical measurement system 100 just can measure the heat fade of light emitting diode.

In addition, when normal light-emitting device 50 design originally is to wish these luminous zone 52 symmetries, and its light shape is also symmetrical, and then these detection positions P can also be balanced configuration.Thus, normal light-emitting device 50 light intensity that any two symmetrical detection position P are measured is consistent in fact.Therefore, the light intensity that is measured as any two symmetrical detection position P of the left and right sides can judge just that existing part luminous zone 52 can't normal operation in the light-emitting device 50 not simultaneously.Perhaps, when some or the detected light intensity of some detection position P descended unusually, also near the luminous zone 52 deducibility this detection position P or these detection positions P can't normal operation.

Above embodiment is that the method that adopts luminous zone 52 to be positioned at boundary position S1 reaches the comparatively desirable effect of uniformity coefficient that makes total sensitization intensity distribution function, but this only is a kind of selection embodiment.Following embodiment or other embodiment also can make total sensitization intensity distribution function homogenising, or above-mentioned these total value are essentially the same as each other.In other embodiments; also can adopt other any uniformity coefficient that make total sensitization intensity distribution function more than or equal to 80% design or adopt any design that above-mentioned these total value are essentially the same as each other, and it still belongs to the scope that the present invention protects.

Fig. 2 A is the schematic side view of optical measurement system and the bearing structure of another embodiment of the present invention, and Fig. 2 B illustrates when the optical measurement system of Fig. 2 A measures the light-emitting device of normal operation, total sensitization intensity distribution function schematic diagram of the sensitization intensity distribution function of each photodetector and all photodetectors.Please refer to Fig. 2 A and Fig. 2 B, the optical measurement system 100a of the present embodiment and the optical measurement system 100 of Figure 1A are similar, and both difference is as described below.The optical measurement system 100a of the present embodiment also comprises at least one reverberator 130 (being as example among Fig. 2 A take two reverberators 130), and it is configured in the periphery of the integral body of these luminous zones 52, and for example is configured in the periphery of the integral body of these detection positions P.In the present embodiment, all these detection positions P are between two reverberators 130.In addition, these all luminous zones 52 are between this two reverberator 130.In the present embodiment, two reverberators 130 for example are specular reflectors, also be mirror (mirror), therefore two reverberators 130 can be in the luminous zone 52 orientation form the virtual image of a unlimited luminous zone 52, then light detection module 100a is detected is the equal of a unlimited light-emitting device 50 that extends, and the luminous zone 52 on the light-emitting device 50 then has numerous and is arranged on the bearing of trend of light-emitting device 50.Thus, the uniformity coefficient of total sensitization intensity distribution function of light detection module 100a just can promote.This is because for a unlimited light-emitting device 50 that extends, no matter photodetector 112 is to be configured in which of a plurality of detection position P that the bearing of trend that is parallel to light-emitting device 50 arranges, and all luminous zones 52 of its whole light-emitting device 50 nearly all do not have difference for the light intensity contribution of this photodetector 112.That is it almost is the same being positioned at the light intensity that detection position P and 112 quilts of photodetector of the detection position P that is positioned at the edge of central authorities contribute.In other words, in the present embodiment, these total value of these luminous zones 52 are about the same each other.By Fig. 2 B as can be known, the uniformity coefficient that these light intensity distributions functions (being curve C 1a, C2a, C3a and C4a) that correspond respectively to these detection positions P add the resulting total sensitization intensity distribution function of the General Logistics Department (being curve C Ta) is about 97%, this is that the length L at light-emitting device 50 is 120 centimetres, photodetector 112 is 30 centimetres to the vertical range H of light-emitting device 50, and the result that simulates when being 30 centimetres of the pitch of photodetector 112 (pitch) T.Hence one can see that, and the configuration of reverberator 130 can significantly promote the uniformity coefficient of total sensitization intensity distribution function really.

In other embodiments, reverberator 130 can also be the diffusion type reverberator, that is the light that send luminous zone 52 can be diffused the diffusion of formula reverberator behind incident diffusion type reverberator.The diffusion type reverberator still can reach the effect of the uniformity coefficient that promotes total sensitization intensity distribution function.

In the present embodiment, the bearing structure 200 of bearing structure 200a and Figure 1A is similar, and both difference is that the bracing frame 220a of the bearing structure 200a of the present embodiment has also fixed reverberator 130.

Fig. 3 A is the schematic side view of optical measurement system and the bearing structure of another embodiment of the present invention, and Fig. 3 B illustrates when the optical measurement system of Fig. 3 A measures the light-emitting device of normal operation, total sensitization intensity distribution function schematic diagram of the sensitization intensity distribution function of each photodetector and all photodetectors.Please refer to Fig. 3 A and Fig. 3 B, the optical measurement system 100b of the present embodiment and the optical measurement system 100a of Fig. 2 A are similar, and both difference is as described below.The optical measurement system 100b of the present embodiment comprises at least one reverberator 130 (such as that reverberator 130 of the centre among Fig. 3 A), and it interts between the P of these detection positions.Particularly, in the included a plurality of reverberators 130 of the optical measurement system 100b of the present embodiment, part reverberator 130 is configured in the periphery (being to be configured in the relative both sides of integral body of these luminous zones 52 as example take two reverberators 130 among Fig. 3 A) of the integral body of these luminous zones 52, and another part reverberator 130 interts between the P of these detection positions (be to be configured between two detection position P of central authorities as example take a reverberator 130 among Fig. 3 A, and this reverberator 130 also being positioned at the central authorities of all detection position P).Yet in other embodiments, optical measurement system also can comprise the reverberator 130 that interts between the P of these detection positions, but does not comprise the reverberator 130 of the periphery of the integral body that is configured in these luminous zones 52.That middle reverberator 130 has been divided into left and right two parts with all luminous zones 52, and the light that send a part of luminous zone 52 of that of the left side can be reflected by the reverberator 130 of leftmost reverberator 130 with the centre.Therefore, for two photodetectors 112 in the left side, this two photodetector 112 is the equal of to detect the unlimited light-emitting device that extends.Similarly, the light that sends of that a part of luminous zone 52 on the right can be reflected by rightmost reverberator 130 and middle reverberator 130.Therefore, for two photodetectors 112 in the right, this two photodetector 112 also is the equal of to detect the unlimited light-emitting device that extends.In the optical measurement system 100a of Fig. 2 A, each photodetector 112 has detected all luminous zones 52.Yet in the optical measurement system 100b of the present embodiment, each photodetector 112 is the luminous zone 52 of detecting a part (are the luminous zone 52 of having detected half be example) among Fig. 3 A.

Because two photodetectors in the left side 112 all are the equal of detecting the unlimited light-emitting device that extends, therefore the uniformity coefficient of the sensitization intensity distribution function of all photodetectors 112 (being curve C 1b, curve C 2b, curve C 3b and curve C 4b) the total sensitization intensity distribution function (being curve C Tb) that forms that adds up also can be up to 97% with two photodetectors 112 in the right.In the present embodiment, because the reverberator 130 in the middle of being positioned at is divided into left and right sides halves with all photodetectors 112 and luminous zone 52, the left side of therefore total sensitization intensity distribution function (being curve C Tb) is contributed by curve C 1b and curve C 2b, and right-hand part is contributed by curve C 3b and curve C 4b.

The bearing structure 200b of the present embodiment and the bearing structure 200a of Fig. 2 A are similar, and both difference is as described below.The bracing frame 220b of the bearing structure 200b of the present embodiment is except fixed light detecting device 112 and be positioned at the reverberator 130 at edge of these detection positions P, has also fixed the reverberator 130 (such as that reverberator 130 of the centre among Fig. 3 A) that interts between the P of these detection positions.

Utilize reverberator 130 that these luminous zones 52 and these detection positions P are divided into a plurality of parts and help also to judge that the luminous zone 52 of which part can't normal operation.Owing to only can detect the light that send that a part of luminous zone 52 corresponding with it at certain a part of detection position P, therefore be that the light intensity which detection position P is partly measured descends by judgement, just deducibility is which luminous zone 52 partly can't normal operation.

Fig. 4 A is the optical measurement system of an again embodiment of the present invention and the schematic side view of bearing structure, and Fig. 4 B illustrates when the optical measurement system of Fig. 4 A measures the light-emitting device of normal operation, total sensitization intensity distribution function schematic diagram of the sensitization intensity distribution function of each photodetector and all photodetectors.Please refer to Fig. 4 A and Fig. 4 B, the optical measurement system 100c of the present embodiment and the optical measurement system 100b of Fig. 3 A are similar, and both difference is as described below.In the optical measurement system 100c of the present embodiment, all dispose reverberator 130 between the wantonly two adjacent photodetectors 112.In other words, dispose a photodetector 112 between the wantonly two adjacent reverberators 130.Therefore, these reverberators 130 are separated into a plurality of parts with all luminous zones 52, and each photodetector 112 measures the part of corresponding luminous zone 52 separately.Because the effect of reverberator 130, for each photodetector 112, it is equivalent to measure the light-emitting device of unlimited extension, therefore each part of being separated of luminous zone 52 light intensity that its corresponding photodetector 112 is contributed can be similar, thus, also can be up to 97% with respect to the uniformity coefficient of sensitization intensity distribution function (being curve C 1c, C2c, C3c and C4c) the total sensitization intensity distribution function (being curve C Tc) that forms that adds up of each photodetector 112.

The bearing structure 200c of the present embodiment and the bearing structure 200b of Fig. 3 A are similar, and both difference is as described below.In the bearing structure 200c of the present embodiment, bracing frame 220c has fixed the reverberator 130 at the edge that is positioned at these detection positions P, and has also fixed the reverberator 130 between the per two adjacent detection position P.

In the embodiment of Figure 1A, Fig. 2 A, Fig. 3 A and Fig. 4 A, these detection positions P is arranged on the straight line of the orientation that is parallel to these luminous zones 52, and the pitch T between the wantonly two adjacent detection position P equates in fact each other

Fig. 5 A is the schematic side view of optical measurement system and the bearing structure of another embodiment of the present invention, and Fig. 5 B illustrates when the optical measurement system of Fig. 5 A measures the light-emitting device of normal operation, total sensitization intensity distribution function schematic diagram of the sensitization intensity distribution function of each photodetector and all photodetectors.Please refer to Fig. 5 A and Fig. 5 B, the optical measurement system 100d of the present embodiment and the optical measurement system 100 of Figure 1A are similar, and both difference is as described below.In the optical measurement system 100d of the present embodiment, at least part of these detection positions Pd presents irregular pitch and distributes.When these detection positions Pd is the irregular pitch distribution, these detection positions Pd can be adjusted to the position of the improving uniformity that can make total sensitization intensity distribution function.

For example, among the pitch T ' between a plurality of wantonly two adjacent detection position Pd of these detection positions Pd, near the pitch T1 of the central authorities of the integral body of these luminous zones 52 of light-emitting device 50 greater than the pitch T2 away from the central authorities of the integral body of these luminous zones 52 of light-emitting device 50.So to set be to consider that the length L when light-emitting device 50 has in limited time to pitch, and total sensitization intensity distribution function has greater than the trend that is positioned near the value the marginal position being positioned near the middle position value.Therefore, when the pitch T1 that will be positioned at central authorities pulls open, the crest of sensitization intensity distribution function of two photodetectors 112 of central authorities is pulled open, and then total sensitization intensity distribution function is descended in the value that is being positioned at the middle position annex, and rise near the value that is positioned at the marginal position.When pitch T1 is 36 centimetres, and pitch T2 is when being 30 centimetres, and the sensitization intensity distribution function of these photodetectors 112 (being curve C 1d, C2d, C3d and C4d) the total sensitization intensity distribution function (being curve C Td) that forms that adds up can be promoted to 62%.

The bearing structure 200d of the present embodiment and the bearing structure 200 of Figure 1A are similar, and both difference is that the bracing frame 220d of the bearing structure 200d of the present embodiment is fixed on these photodetectors 112 on the detection position Pd of irregular pitch.

Fig. 6 A is the schematic side view of optical measurement system and the bearing structure of another embodiment of the present invention, and Fig. 6 B illustrates when the optical measurement system of Fig. 6 A measures the light-emitting device of normal operation, total sensitization intensity distribution function schematic diagram of the sensitization intensity distribution function of each photodetector and all photodetectors.Please refer to Fig. 6 A and Fig. 6 B, the optical measurement system 100e of the present embodiment and the optical measurement system 100 of Figure 1A are similar, and both difference is as described below.In the embodiment of Figure 1A, all detection position P are equal all in fact to the vertical range H of reference line R (or reference surface).Yet, in other embodiments, at least part of these detection positions P to the vertical range of reference line R (or reference surface) also can be unequal.In the optical measurement system 100e of the present embodiment, in the P of these detection positions, near the detection position P2e of the central authorities of the integral body of these luminous zones 52 to the vertical range H2e of reference line R (or reference surface) greater than away from the detection position P1e of the central authorities of the integral body of these luminous zones 52 vertical range H1e to reference line R (or reference surface).So the setting of vertical range H1e and H2e is to consider that the length L when light-emitting device 50 has in limited time, and total sensitization intensity distribution function has greater than the trend that is positioned near the value the marginal position being positioned near the middle position value.Therefore, when the vertical range H1e that will be positioned at both sides shortens, can make the sensitization strength distribution curve of drawing high the photodetector 112 that is positioned at the edge, and then total sensitization intensity distribution function is risen near the value that is positioned at the marginal position.Pitch T on these detection positions P1e direction vertical with the orientation with luminous zone 52 of P2e is 30 centimetres, vertical range H1e is 25 centimetres, and vertical range H2e is when being 30 centimetres, and the uniformity coefficient that adds up the total sensitization intensity distribution function (being curve C Te) that forms corresponding to the sensitization intensity distribution function (being curve C 1e, C2e, C3e and C4e) of these detection positions P1e and P2e can promote 57%.

The bearing structure 200e of the present embodiment and the bearing structure 200 of Figure 1A are similar, and both difference is that the bracing frame 220e of the bearing structure 200e of the present embodiment is fixed on these photodetectors 112 on the position that pitch H1e, the H2e of light-emitting device 50 do not wait.

Fig. 7 A is the schematic side view of optical measurement system and the bearing structure of another embodiment of the present invention, and Fig. 7 B illustrates when the optical measurement system of Fig. 7 A measures the light-emitting device of normal operation, total sensitization intensity distribution function schematic diagram of the sensitization intensity distribution function of each photodetector and all photodetectors.Please refer to Fig. 7 A and Fig. 7 B, the optical measurement system 100f of the present embodiment and the optical measurement system 100 of Figure 1A are similar, and both difference is as described below.In the optical measurement system 100 of Figure 1A, the detection side of all these detection position P is to all identical (all be downward such as what illustrate among Figure 1A).Yet in other embodiments, the detection side of at least part of these detection positions P is to can being not parallel each other.In the optical measurement system 100f of the present embodiment, in these detection positions P1f and P2f, the direction of yearning near the central authorities of the integral body of these luminous zones 52 away from the detection side of the detection position P1f of the central authorities of the integral body of these luminous zones 52 tilts.Illustrate such as Fig. 7 A, the detection side of the detection position P1f of the left and right sides to D1 with respect to the θ angle that tilted of the vertical direction perpendicular to light-emitting device 50.In addition, the detection side is the optical axis direction of photodetector 112 to D1.In addition, in the present embodiment, the detection side of detection position P2f to D1 then in fact perpendicular to light-emitting device 50.

In the present embodiment, when the direction of detection side to D1 toward the central authorities of close light-emitting device 50 of detection position P1f tilts, the crest of the corresponding sensitization intensity distribution function of detection position P1f (being curve C 1f and curve C 4f) can past move down, and can move toward the direction that near the position be 0.Thus, just can promote the uniformity coefficient of sensitization intensity distribution function (being curve C 1f, C2f, C3f and C4f) the total sensitization intensity distribution function (being curve C Tf) that forms that adds up of detection position P1f and P2f.When angle θ is 20 degree, pitch T is 30 centimetres, and vertical range H is when being 30 centimetres, and total sensitization intensity distribution function (being curve C Tf) can be promoted to 63%.

The bearing structure 200f of the present embodiment and the bearing structure 200 of Figure 1A are similar, and both difference is that the bracing frame 220f of the bearing structure 200f of the present embodiment is fixed on these photodetectors 112 on detection position P1f and the P2f.

In other embodiments, along with the difference of detection position P1f distribution in the horizontal direction, the detection side of detection position P1f can also be designed to tilt towards the direction away from the central authorities of light-emitting device 50 to D1.

The embodiment of Fig. 5 A, Fig. 6 A and Fig. 7 A has enumerated the embodiment of the design of several detection positions, in other embodiments, also can adopt simultaneously the design of Fig. 5 A and Fig. 6 A, adopt simultaneously the design of Fig. 6 A and Fig. 7 A, adopt simultaneously the design of Fig. 5 A and Fig. 7 A, or adopt simultaneously the design of Fig. 5 A, Fig. 6 A and Fig. 7 A.Below enumerate the embodiment of the design that adopts simultaneously Fig. 6 A and Fig. 7 A.

Fig. 8 is the optical measurement system of an again embodiment of the present invention and the schematic side view of bearing structure.Please refer to Fig. 8, the design concept of the detection position of the present embodiment combines the design concept of Fig. 6 A and Fig. 7 A.In the optical measurement system 100g of the present embodiment, tilt toward the direction near the central authorities of light-emitting device 50 to D1 away from the detection side of the detection position P1g of the central authorities of light-emitting device 50.In addition, away from the detection position P1g of the central authorities of light-emitting device 50 to the vertical range H1g of light-emitting device 50 less than near the detection position P2g of the central authorities of the light-emitting device 50 vertical range H2g to light-emitting device 50.After combining two kinds of design concepts, the parameter designing through suitable can make the uniformity coefficient of total sensitization intensity distribution function promote further.

In addition, the bracing frame 220g of the bearing structure 200g of the present embodiment is fixed on these photodetectors 112 on detection position P1g and the P2g.

Fig. 9 is the schematic side view of optical measurement system and the bearing structure of another embodiment of the present invention.Please refer to Fig. 9, the optical measurement system 100h of the present embodiment and the optical measurement system 100a of Fig. 2 A are similar, and both difference is as described below.In the optical measurement system 100h of the present embodiment, light detection module 110h comprises at least one photodetector 112 (being as example among Fig. 9 take a photodetector 112), photodetector 112 moves to these detection positions P1h, P2h, P3h and P4h in a plurality of times, to record respectively the light intensity of at least part of these luminous zones 52.In the present embodiment, detection position P1h, P2h, P3h and P4h are for example identical with these detection positions P among Fig. 2 A.In the present embodiment, photodetector 112 sequentially moves to detection position P2h, P3h and P4h from detection position P1h, and measure light intensity at each detection position P1h, P2h, P3h, P4h, to produce light intensity signal G, the resulting light intensity signal G at different detection position P1h, P2h, P3h and P4h has then been integrated in signal integration unit 120, to obtain the overall light intensity assessed value.Because the present embodiment all is to measure light intensity at identical detection position P with the embodiment of Fig. 2 A, just the photodetector 112 of the present embodiment is to adopt the mode that is scanned up to detection position P4h from detection position P1h to obtain the light intensity of these detection positions P1h, P2h, P3h and P4h, thus the sensitization intensity distribution function of each detection position P1h, P2h, P3h and the P4h of the present embodiment and totalling thereof and total sensitization intensity distribution function can be consistent with the person of illustrating of Fig. 2 B institute.

In other embodiments, can also adopt a plurality of photodetectors 112 to scan, to shorten the time of scanning.For example, two photodetectors 112 be can adopt simultaneously, and first this two photodetector 112 detection position P1h and P3h are configured in.Then, allow this two photodetector 112 be scanned up to detection position P2h and P4h from detection position P1h and P3h respectively, all to measure light intensity at detection position P1h, P2h, P3h and P4h.Thus, compared to the embodiment of Fig. 9, just can shorten the sweep time of half.In other words, when adopting N photodetector to scan, just can be shortened to the 1/N when adopting a photodetector to measure sweep time, wherein N is the positive integer more than or equal to 2.

The bearing structure 200h of the present embodiment and the bearing structure 200 of Figure 1A are similar, and both difference is as described below.In the bearing structure 200h of the present embodiment, fabricated section 230h is installed in photodetector 112 on the bracing frame 220h movably.Fabricated section 230h is mobile at mobile route A, in a plurality of times photodetector 112 being moved to these detection positions P1h, P2h, P3h and P4h, and records respectively the light intensity of at least part of these luminous zones 52.In the present embodiment, bracing frame 220h comprises slide rail 224h, and fabricated section 230h slides at slide rail 224h, to move along mobile route A.For example, bearing structure 200h can have actuator 240, and it is mobile at slide rail 224h that it drives fabricated section 230h.Actuator 240 makes fabricated section 230h mobile at mobile route A, and in a plurality of times photodetector 112 is moved to these detection positions P1h, P2h, P3h and P4h, wherein actuator 240 for example is motor or other actuators.In addition, in the present embodiment, bracing frame 220h is fixed reflector 130 also.

In addition, the embodiment of above-mentioned Figure 1A, Fig. 3 A, Fig. 4 A, Fig. 5 A, Fig. 6 A, Fig. 7 A and Fig. 8 also can adopt the concept of the photodetector scanning of the present embodiment, that is utilizes photodetector 112 to be scanned up on the detection position among these embodiment.

Figure 10 is the schematic side view of optical measurement system and the bearing structure of another embodiment of the present invention.Please refer to Figure 10, the optical measurement system 100i of the present embodiment and the optical measurement system 100 of Figure 1A are similar, and both difference is as described below.In the optical measurement system 100i of the present embodiment, each light intensity signal Gi is light signal, and signal integration unit 120i is the light signal integral unit, to integrate these light signals (being light intensity signal Gi).In the present embodiment, signal integration unit 120i is integrating sphere, light detection module 110i comprises a plurality of optical fiber 112i, each optical fiber 112i has relative first end E1 and the second end E2, these first ends E1 of these optical fiber 112i lays respectively at these detection positions P, and these second ends E2 of these optical fiber 112i is connected to signal integration unit 120i (being integrating sphere).These light signals (being light intensity signal Gi) are passed to signal integration unit 120i (being integrating sphere) via these optical fiber 112i respectively, and signal integration unit 120i (being integrating sphere) is with these light signal integrations, to obtain the overall light intensity assessed value.In other words, the present embodiment is to adopt the mode of optics that light signal (being light intensity signal Gi) is integrated, and the embodiment of Figure 1A adopts the mode of electronic operation that electric signal (being light intensity signal G) is integrated.

Particularly, in the present embodiment, signal integration unit 120i (being integrating sphere) comprises sphere of reflection 122i, optical fiber 126i and photodetector 124i.Sphere of reflection 122i is the hollow ball that inwall has high reflectance, wall energy will fully reflect from the light intensity signal Gi (being light signal) of optical fiber 112i and mix in it, optical fiber 126i then is passed to photodetector 124i with abundant mixed light signal, and so photodetector 124i just can detect the light intensity signal through storage effect.

The bearing structure 200i of the present embodiment and the bearing structure 200 of Figure 1A are similar, are that first end E1 with these optical fiber 112i is separately fixed on the P of these detection positions and both difference is the bracing frame 220i of the bearing structure 200i of the present embodiment.For example, the first end E1 of these optical fiber 112i can be installed on the bracing frame 220i by fabricated section 230i.

In the present embodiment and since when sphere of reflection 122i can accommodating these optical fiber 112i the second end E2 the time, just can reach good storage effect, and need not accommodating whole light-emitting device 50.Therefore, the sphere of reflection 122i of the optical measurement system 100i of the present embodiment can less (that is integrating sphere can be less), thus can effectively reduce cost, and be conducive to the planning of production line.In addition, during owing to each measurement light-emitting device 50, light-emitting device 50 can be placed in the integrating sphere, so the optical measurement system 100i of the present embodiment can promote the smooth degree of production procedure.

The concept that the light signal of Figure 10 is integrated also can be applicable to the embodiment of Fig. 2 A, Fig. 3 A, Fig. 4 A, Fig. 5 A, Fig. 6 A, Fig. 7 A and Fig. 8, and the first end E1 that also is about to optical fiber 112i is arranged on the detection position of these embodiment.

Figure 11 is the schematic side view that optical measurement system, bearing structure and the optical measurement system of an again embodiment of the present invention measures light-emitting device.Please refer to Figure 11, the optical measurement system 100 of the present embodiment is identical with the optical measurement system 100 of Figure 1A, and in the present embodiment, optical measurement system 100 also can measure a plurality of light-emitting device 50j.These light-emitting devices 50j can be the light-emitting device 50j of identical or different type, and is separately independently to each other.In other words, the luminous zone 52j of light-emitting device 50j can be identical or different.In addition, power supply unit 140 is electrically connected to these light-emitting devices 50j, and is luminous to drive these light-emitting devices 50j.The optical measurement system 100 of the present embodiment can measure the overall light intensity assessed value of all these light-emitting devices 50j, therefore can the light loss of how many units be arranged in order to judge these light-emitting devices 50j integral body.

In addition, the light-emitting device 50 of above-described embodiment is take light-emitting section as example, that is luminous zone 52 is to be arranged on the straight line.When light-emitting device 50 is area source, that is luminous zone 52 is when lining up two-dimensional array or connecting into the plane, the detection position of above-mentioned these embodiment also can be arranged in two-dimensional array above luminous zone 52, that is the detection position is except arranging as Figure 1A, Fig. 2 A, Fig. 3 A, Fig. 4 A, Fig. 5 A, Fig. 6 A, Fig. 7 A and Fig. 8, and it also has arrangement on perpendicular to the direction of drawing.In addition, above-mentioned optical measurement system also can be in order to the luminophor (luminophor and the erose luminophor that comprise regular shape) that measures any shape, and the luminophor that measures also not limit be one-sided luminous, it can also be that many sides are luminous.For example, above-mentioned optical measurement system can in order to measure on perpendicular to the direction of bearing of trend can 360 degree equal luminous light-emitting diode optical wands.Although optical measurement system is to adopt the mode of one-sided integration to measure, the mode that can adopt repeatedly different angles to measure for this kind light-emitting diode optical wand reaches the multi-direction effect that measurement is all arranged.For example, can survey once with respect to per 120 tolerance of light-emitting diode optical wand, measure altogether three times, and then comprehensively compare these three resulting results, also can judge light-emitting diode optical wand has the light loss of how many units.

Figure 12 is the process flow diagram of the optical measurement method of one embodiment of the invention.The optical measurement method of the present embodiment can utilize the optical measurement system of above-described embodiment or other embodiment to carry out, and below first is implemented as example with the optical measurement system 100 of Figure 1A.Please refer to Figure 1A and Figure 12, the optical measurement method of the present embodiment comprises the following steps.At first, execution in step S110, it is for these luminous zones 52, detects respectively the light intensity of at least part of these luminous zones 52 at a plurality of different detection position P, to obtain corresponding respectively to a plurality of light intensity signal G of these detection positions P.Embodiment as Figure 1A is described, and step S110 can utilize light detection module 110 to finish.Then, execution in step S120, it is for integrating these light intensity signals G, to obtain the overall light intensity assessed value relevant with these luminous zones 52.Embodiment as Figure 1A is described, and step S120 can utilize signal integration unit 120 to finish.

In addition, when optical measurement method is applied in the optical measurement device of embodiment of Figure 1A, Fig. 2 A, Fig. 3 A, Fig. 4 A, Fig. 5 A, Fig. 6 A, Fig. 7 A, Fig. 8 and Figure 11, to adopt at least part of these detection positions (for example in all detection positions) to detect simultaneously the concept of the light intensity of at least part of luminous zone 52, that is dispose all respectively photodetector 112 in these detection positions, therefore can reach the effect that detects simultaneously.Yet, when optical measurement method is applied to the embodiment of Fig. 9, be to utilize at least one photodetector 112 to move to these detection positions in a plurality of times, to record the light intensity of at least part of these luminous zones 52.In addition, when optical measurement method is applied to the embodiment of Fig. 2 A, Fig. 3 A and Fig. 4 A, then be to utilize reverberator 130 to reflect the lateral light that send luminous zone 52.

Other details of optical measurement method elaborate in the above-described embodiments, therefore can with reference to the explanation of above-described embodiment, no longer repeat at this.

In sum, in the optical measurement system and optical measurement method of embodiments of the invention, be to detect respectively the light intensity of these luminous zones in a plurality of different detection positions, and integrate resulting these light intensity signals to obtain the overall light intensity assessed value.Therefore, this overall light intensity assessed value is possible luminous of position, these detection positions in these luminous zones and other or to detect overall light intensity weight distribution that optical condition produces comparatively measured in the situation of homogenization.Thus, this overall light intensity assessed value helps to differentiate light-emitting device or these luminous zones are the light losses what units are arranged, or differentiates and to have the luminous zone of how much quantity can't normal operation in the light-emitting device.In addition, in the bearing structure of embodiments of the invention, utilize fabricated section that photodetector is installed on the bracing frame movably or immovably, it is conducive to make optical measurement system to realize the high measurement of accuracy.

It should be noted that at last: above each embodiment is not intended to limit only in order to technical scheme of the present invention to be described; Although with reference to aforementioned each embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment puts down in writing, and perhaps some or all of technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the scope of various embodiments of the present invention technical scheme.

Claims

1. an optical measurement system is characterized in that, comprising:

The light detection module for a plurality of luminous zones, detects respectively the light intensity of at least part of these a plurality of luminous zones, to obtain corresponding respectively to a plurality of light intensity signals of these a plurality of detection positions in a plurality of different detection positions; And

This a plurality of light intensity signals are integrated in the signal integration unit, to obtain the overall light intensity assessed value relevant with these a plurality of luminous zones.

2. optical measurement system according to claim 1, wherein when this light detection module detects this a plurality of luminous zone of normal operation this detection position, contribute to the sensitization intensity of this light detection module a plurality of luminous zones of this of normal operation has a sensitization intensity distribution function with respect to the position of these a plurality of different luminous zones, the a plurality of sensitization intensity distribution functions of this of these a plurality of detection positions add the General Logistics Department becomes total sensitization intensity distribution function, and the uniformity coefficient that makes this total sensitization intensity distribution function is dropped on greater than on any the position of uniformity coefficient in these a plurality of sensitization intensity distribution functions in these a plurality of detection positions.

3. optical measurement system according to claim 1, wherein to contribute the light intensity summation to these all a plurality of detection positions be total value in each this luminous zone, a plurality of total value of this of these a plurality of luminous zones are essentially the same as each other.

4. optical measurement system according to claim 3, wherein the optical characteristics of these a plurality of luminous zones is essentially the same as each other.

5. optical measurement system according to claim 3, wherein each this luminous zone is at least part of not identical to the distance of these different a plurality of detection positions.

6. optical measurement system according to claim 1, wherein each this light intensity signal is electric signal, and this signal integration unit is arithmetic element, and this arithmetic element should be made calculation process by a plurality of light intensity signals, to obtain this overall light intensity assessed value.

7. optical measurement system according to claim 6, wherein this arithmetic element should add up by a plurality of light intensity signals, to obtain this overall light intensity assessed value.

8. optical measurement system according to claim 1, wherein each this light intensity signal is light signal, this signal integration unit is the light signal integral unit, to integrate these a plurality of light signals.

9. optical measurement system according to claim 8, wherein this signal integration unit is integrating sphere, this light detection module comprises a plurality of optical fiber, each optical fiber has relative first end and the second end, the a plurality of first ends of this of these a plurality of optical fiber lay respectively at this a plurality of detection positions, and a plurality of the second ends of this of these a plurality of optical fiber are connected to this integrating sphere, these a plurality of light signals are handed to this integrating sphere via these a plurality of optical fiber transmissions respectively, this integrating sphere should a plurality of light signal integrations, to obtain this overall light intensity assessed value.

10. optical measurement system according to claim 1, wherein this light detection module comprises a plurality of photodetectors, is configured in respectively on these a plurality of detection positions.

11. optical measurement system according to claim 10, wherein these a plurality of photodetectors respectively are spectrometer or light intensity meter.

12. optical measurement system according to claim 1, wherein this light detection module comprises at least one photodetector, and above-mentioned photodetector moves to this a plurality of detection positions in a plurality of times, to record respectively the light intensity of at least part of these a plurality of luminous zones.

13. optical measurement system according to claim 12, wherein said photodetector are spectrometer or light intensity meter.

14. optical measurement system according to claim 1, wherein each this luminous zone is contributed by a light-emitting component.

15. optical measurement system according to claim 14, wherein this light-emitting component is light emitting diode, and these a plurality of light emitting diodes are configured on the strip carrier, to form light-emitting diode lamp tube.

16. optical measurement system according to claim 1, wherein these a plurality of luminous zones are bonded into continuous isolychn or light-emitting area continuously.

17. optical measurement system according to claim 1, wherein when each of a plurality of detection positions that are positioned at edge of this light detection module in these a plurality of detection positions detects this a plurality of luminous zone of normal operation, contribute to the sensitization intensity of this light detection module a plurality of different luminous zones of this of normal operation has edge sensitization intensity distribution function with respect to the position of these a plurality of different luminous zones, these a plurality of detection positions are all dropped within peaked half corresponding a plurality of boundary position of this a plurality of edge sensitization intensity distribution functions of these a plurality of detection positions these a plurality of luminous zones, wherein each this boundary position be in peaked half corresponding a plurality of position of this edge sensitization intensity distribution function away from the center person of this light-emitting device.

18. optical measurement system according to claim 1 also comprises at least one reverberator, is configured in the periphery of the integral body of these a plurality of luminous zones.

19. optical measurement system according to claim 1 also comprises at least one reverberator, interts between these a plurality of detection positions.

20. optical measurement system according to claim 1, wherein at least part of these a plurality of detection positions present the irregular pitch distribution.

21. optical measurement system according to claim 20, wherein in the pitch between a plurality of wantonly two of these a plurality of detection positions adjacent detection positions, near the pitch of the central authorities of the integral body of these a plurality of luminous zones greater than the pitch away from the central authorities of the integral body of these a plurality of luminous zones.

22. optical measurement system according to claim 1, wherein these a plurality of luminous zones are arranged on reference line or the reference surface, and at least part of these a plurality of detection positions are unequal to the vertical range of this reference line or this reference surface.

23. optical measurement system according to claim 22, wherein in these a plurality of detection positions, near the detection position of the central authorities of the integral body of these a plurality of luminous zones to the vertical range of this reference line or reference surface greater than away from the detection position of the central authorities of the integral body of these a plurality of luminous zones vertical range to this reference line or reference surface.

24. optical measurement system according to claim 1, wherein the detection side of at least part of these a plurality of detection positions is not parallel towards each other.

25. optical measurement system according to claim 24 wherein in these a plurality of detection positions, is yearned for direction inclination near the central authorities of the integral body of this a plurality of luminous zones away from the detection side of the detection position of the central authorities of the integral body of these a plurality of luminous zones.

26. optical measurement system according to claim 1, wherein these a plurality of detection positions are positioned at the same side of this light-emitting device.

27. an optical measurement method is characterized in that, comprising:

For a plurality of luminous zones, detect respectively the light intensity of at least part of these a plurality of luminous zones in a plurality of different detection positions, to obtain corresponding respectively to a plurality of light intensity signals of these a plurality of detection positions; And

Integrate this a plurality of light intensity signals, to obtain the overall light intensity assessed value relevant with these a plurality of luminous zones.

28. the bearing structure of an optical measurement system is characterized in that, comprising:

Bracing frame; And

At least one fabricated section, be installed in movably or immovably at least one photodetector of this optical measurement system on this bracing frame, so that being provided, a plurality of different detection positions allow above-mentioned photodetector detect and obtain respectively a plurality of light intensity signals in these a plurality of different detection positions, wherein these a plurality of light intensity signals of the signal integration unit of this optical measurement system integration.

29. the bearing structure of optical measurement system according to claim 28, wherein above-mentioned photodetector detects respectively the light intensity of at least part of these a plurality of luminous zones in these a plurality of detection positions, it is total value that the light intensity summation to these all a plurality of detection positions is contributed in each this luminous zone, and these a plurality of detection positions of providing of this fabricated section are to drop on the position that these a plurality of total value of making these a plurality of luminous zones are essentially the same as each other.

30. the bearing structure of optical measurement system according to claim 28, wherein above-mentioned photodetector is a plurality of photodetectors, and this fabricated section should immovably be fixed on this bracing frame by a plurality of photodetectors, and is fixed on these a plurality of detection positions.

31. the bearing structure of optical measurement system according to claim 28 also comprises actuator, makes this fabricated section mobile at mobile route, in a plurality of times above-mentioned photodetector is moved to this a plurality of detection positions.

32. the bearing structure of optical measurement system according to claim 31, wherein this bracing frame comprises slide rail, and this fabricated section slides at this slide rail, to move along this mobile route.

33. an optical measurement system in order to measure light-emitting device, is characterized in that, this optical measurement system comprises:

The light detection module for this light-emitting device, detects respectively the light intensity of at least part of this light-emitting device, to obtain corresponding respectively to a plurality of light intensity signals of these a plurality of detection positions in a plurality of different detection positions; And

This a plurality of light intensity signals are integrated in the signal integration unit, to obtain the overall light intensity assessed value relevant with this light-emitting device.

34. optical measurement system according to claim 33, wherein when this light detection module detects this light-emitting device of normal operation this detection position, a plurality of different position on this light-emitting device of normal operation contributes the sensitization intensity to this light detection module to have a sensitization intensity distribution function with respect to these a plurality of different positions on this light-emitting device, the a plurality of sensitization intensity distribution functions of this of these a plurality of detection positions add the General Logistics Department becomes total sensitization intensity distribution function, and the uniformity coefficient that makes this total sensitization intensity distribution function is dropped on greater than on any the position of uniformity coefficient in these a plurality of sensitization intensity distribution functions in these a plurality of detection positions.

35. optical measurement system according to claim 33 also comprises at least one reverberator, is configured in the periphery of the integral body of these a plurality of luminous zones.

36. optical measurement system according to claim 33 also comprises at least one reverberator, interts between these a plurality of detection positions.