CN203274911U - Luminous flux measuring device of sharp-beam LED lamp - Google Patents

Abstract

The utility model discloses a luminous flux measuring device of a sharp-beam LED lamp. The luminous flux measuring device comprises a photometry integrating sphere, a scaling calibrating device and a light measuring device. The photometry integrating sphere is formed by jointing a first hemisphere and a second hemisphere; a wall of the first hemisphere is provided with a first hole and a second hole; the light measuring device is arranged on the first hole; and the scaling calibrating device is arranged on the second hole. The scaling calibrating device comprises a housing with a light extraction hole and a light extraction device which is arranged inside the housing. An optical axis of the light extraction device penetrates through a center of the light extraction hole and is vertically orthogonal to a plane of the light extraction hole. The luminous flux measuring device of the sharp-beam LED lamp has the advantages that: the luminous flux measuring device can measure the luminous flux rapidly, and is compact in structure, convenient in operation, and high in measurement precision; the luminous flux measuring device can set the light output characteristic of the scaling device based on the sample characteristic and is high in measurement precision; and the luminous flux measuring device can simultaneously employ a plurality of photodetection devices, and is quick in measurement speed and high in measurement precision.

Description

A kind of arrow beam of light LED light flux measuring device

Technical field

The utility model relates to a kind of luminous flux measurement device, especially relates to a kind of arrow beam of light LED light flux measuring device.

Background technology

Luminous flux is the basic parameter of estimating the light source luminescent performance, and the method for measuring luminous flux mainly contains integrating sphere method and space product point-score.The integrating sphere method is based on the method for testing of integrating sphere, integrating sphere is the ball chamber that an inwall evenly is coated with high reflectance diffuse reflection coating, measured light is arranged on center or ball wall, and measured light is detected device reception test and obtains the measured light light flux values after the light that the space all directions are sent reflects through the ball wall.The space product point-score is based on the method for testing of distribution photometer, and distribution photometer adopts the method test of rotation measured light or rotating detector to obtain measured light at the luminous flux of space all directions, and accumulation calculating obtains the luminous flux of measured light afterwards.

The integrating sphere method mainly contains 4 π methods and two kinds of measuring methods of 2 π.4 π methods are methods that the total space is measured, and during measurement, sample is arranged on the centre of sphere; 2 π methods are only applicable to the measurement of the luminous sample of forward direction, and during measurement, sample is arranged on the ball wall, and are luminous in the ball; The integrating sphere method has that measuring speed is fast, simple operation and other advantages, but can not be fully evenly owing to inevitably being provided with detector mounting hole, the amalgamation of ball wall gap, center lamp stand (4 π method), auxiliary lamp, baffle plate etc. and ball wall coating in integrating sphere, the integrating sphere inwall is not the ideal ball wall.Therefore, actual integrating sphere there are differences the response of the irradiation light of space different directions, thereby when causing adopting the test of integrating sphere method to have the light source of different light intensity distribution character, measures and have error.In addition, also have and adopt as the arrow beam of light shot-lights such as halogen tungsten Lamp cup improve precision as the method for standard lamp, but because the beam angle of sample varies, this method still can't thoroughly solve the problem that the integrating sphere method is tested arrow beam of light LED lamp.

The space product point-score is measuring method the most accurately in theory.Than the integrating sphere method, the space product point-score adopts light probe to rotatablely move with respect to measured light and measures measured light at the luminous flux of space all directions, therefore the difference problem of Existential Space response not.Yet, just because of the light flux distribution that will adopt the same probe measurement total space, adopt consuming time longer that the space product point-score measures, can't realize Quick Measurement, and often adopt battery powered sample for LED electric torch etc., realize that test is cumbersome.In addition, there is the problem of stray light in the space product point-score, and often cost is higher.

The deficiency of above-mentioned instrument: adopt existing integrating sphere method to measure sample luminous flux, especially arrow beam of light sample luminous flux, exist the integrating sphere Non-uniform responsivity to affect the problem of measuring accuracy; Adopt the space product point-score to measure the sample luminous flux and exist and to realize Quick Measurement, the problem such as be easy to be subjected to that extraneous factor affects.

Summary of the invention

Technical problem to be solved in the utility model is to provide the high arrow beam of light LED light flux measuring device of a kind of measuring accuracy.

The utility model solves the problems of the technologies described above the technical scheme that adopts: a kind of arrow beam of light LED light flux measuring device comprises light-measuring integrating sphere, calibration calibrating installation and optical measurement instrument; Light-measuring integrating sphere is comprised of the first hemisphere and the second hemisphere amalgamation, is provided with the first perforate and the second perforate on the ball ancient piece of jade, round, flat and with a hole in its centre of the first hemisphere; Described optical measurement instrument is arranged in the first perforate, and described calibration calibrating installation can be arranged in the second perforate; Described calibration calibrating installation comprises the housing that is provided with the bright dipping aperture and is arranged at the electro-optical device that of enclosure interior, the optical axis that goes out electro-optical device cross bright dipping aperture center and with bright dipping aperture face perpendicular quadrature.Light-measuring integrating sphere is a kind of Hollow spheres, generally is comprised of two hemisphere amalgamations; Optical measurement instrument is used for measuring the sample utilizing emitted light, optical measurement instrument can be the light measurers such as light probe (as luminosity probe, colourity probe, radiancy probe), spectral radiance analyser, adopting light measurer directly to receive limit unthreaded hole emergent light, can be also the combination by optical pickup apparatus (as optical element or their combinations such as integrating sphere, diffusion disk, optical filter, optical fiber, prism, lens, reflective mirrors) and light measurer; Optical pickup apparatus comprises a light inlet and a light-emitting window at least, and light inlet coordinates to receive with the limit unthreaded hole limits the unthreaded hole emergent light, and light-emitting window is connected with the photometry mouth of light measurer; The calibration calibrating installation is used for the alignment light flux measuring device, comprises that housing is used for isolated external environment impact, and the bright dipping aperture is used for restriction bright dipping size.

During use, will calibrate calibrating installation and be arranged on alignment light flux measuring device in the second perforate, and then pull down calibration calibrating installation and sample is arranged in the second perforate and measure, measure the luminous flux, spectrum, radiant energy flux, colorimetric parameter of sample etc.

As to further the improving and replenish of technique scheme, the present invention adopts following technical measures: describedly go out electro-optical device and comprise translating device and be fixed on standard sources on translating device.Standard sources is fixed on translating device, utilize translating device to change distance between the bright dipping aperture of standard sources and calibration calibrating installation, change the lighting angle of calibration calibrating installation, make the lighting angle variable range of calibration calibrating installation, sample coupling from different beam angles improves measuring accuracy.

Be provided with the monitoring probe that is fixedly connected with standard sources on described translating device.Monitoring probe can the monitoring standard light source go out light beats and the influence factor such as aging, improve measuring accuracy.

Be fixedly connected with an erecting bed in described the second perforate, described calibration calibrating installation can be arranged on erecting bed.Arranging of erecting bed can be user-friendly.

Be provided with the 3rd perforate on the ball ancient piece of jade, round, flat and with a hole in its centre of described the first hemisphere, described the 3rd perforate and the second perforate are symmetricly set on the ball ancient piece of jade, round, flat and with a hole in its centre of the first hemisphere.The 3rd perforate is used for sample is installed, and the calibration calibrating installation is fixedly mounted in the second perforate, simplifies the operation, and improves measuring accuracy.

Described the 3rd perforate and the second perforate all are positioned at 1/2nd ball panel region of the first hemisphere.The 3rd perforate and the second perforate all are arranged in 1/2nd ball panel region of the first hemisphere, can avoid the mirror-reflection influence of light, improve measuring accuracy.

Be provided with auxiliary lamp on a described light-measuring integrating sphere ball ancient piece of jade, round, flat and with a hole in its centre and be used for blocking the first baffle plate of auxiliary lamp.Auxiliary lamp can be eliminated the self-absorption impact, improves measuring accuracy.

Described erecting bed is a translation stage or universal stage, and translation stage or universal stage can automatically controlled or manual translation or rotations.Arranging of erecting bed can be user-friendly.

Described erecting bed is to comprise a translation stage and the universal stage that is arranged on translation stage, and translation stage and universal stage can automatically controlled or manual translation or rotations.Arranging of erecting bed can be user-friendly.

Be provided with face battle array image measuring device on the ball ancient piece of jade, round, flat and with a hole in its centre of described the first hemisphere.Face battle array image measuring device can be used for situation in the observation ball, improves measuring accuracy.

Compared with prior art, the utility model has the advantages that can be at the Quick Measurement luminous flux, compact conformation, and easy to operate, measuring accuracy is high; Property settings robot scaling equipment light output characteristics per sample, measuring accuracy is high; Can adopt simultaneously the multiple light sniffer to measure, measuring speed is fast, and measuring accuracy is high.

Description of drawings

Fig. 1 is structural representation of the present utility model;

Fig. 2 is the structural representation of calibration calibrating installation of the present utility model;

Fig. 3 is the structural representation () of light-measuring integrating sphere of the present utility model;

Fig. 4 is the structural representation (two) of light-measuring integrating sphere of the present utility model;

Fig. 5 is the structural representation of the first hemisphere of light-measuring integrating sphere of the present utility model.

In figure: 1. light-measuring integrating sphere, 1-1. the first hemisphere, 1-1-1. the first perforate, 1-1-2. the second perforate, 1-1-3. the 3rd perforate, 1-2. the second hemisphere, 2. calibration calibrating installation, 2-1. bright dipping aperture, 2-2. housing, 2-3. go out electro-optical device, 2-3-1. translating device, 2-3-2. standard sources, 2-3-3. monitoring probe, 3. optical measurement instrument, 4, erecting bed, 5. auxiliary lamp, 6. the first baffle plate, a 7. battle array image measuring device.

Embodiment

Embodiment is described in further detail the utility model below in conjunction with accompanying drawing.

Embodiment one: the luminous flux measurement device, and as shown in Figure 1, it comprises light-measuring integrating sphere 1, calibration calibratinginstallation 2 andoptical measurement instrument 3; Light-measuring integrating sphere 1 is comprised of the first hemisphere 1-1 and the second hemisphere 1-2 amalgamation, is provided with the first perforate 1-1-1 and the second perforate 1-1-2 on the ball ancient piece of jade, round, flat and with a hole in its centre of the first hemisphere 1-1; Describedoptical measurement instrument 3 is arranged on the first perforate 1-1-1, and described calibration calibratinginstallation 2 can be arranged on the second perforate 1-1-2; What described calibration calibratinginstallation 2 comprised the housing 2-2 that is provided with bright dipping aperture 2-1 and was arranged at housing 2-2 inside goes out electro-optical device 2-3, the optical axis that goes out electro-optical device 2-3 cross bright dipping aperture 2-1 center and with bright dipping aperture 2-1 face perpendicular quadrature.Be fixedly connected with an erecting bed 4 on the second perforate 1-1-2, calibration calibratinginstallation 2 is arranged on erecting bed 4.Be provided withauxiliary lamp 5 on light-measuring integrating sphere 1 a ball ancient piece of jade, round, flat and with a hole in its centre and be used for blocking the first baffle plate 6 of auxiliary lamp 5.Be provided with face battle arrayimage measuring device 7 on the ball ancient piece of jade, round, flat and with a hole in its centre of the first hemisphere 1-1.

Embodiment two: the luminous flux measurement device, as shown in Figure 2, whatcalibration calibrating installation 2 comprised the housing 2-2 that is provided with bright dipping aperture 2-1 and was arranged at housing 2-2 inside goes out electro-optical device 2-3, the optical axis that goes out electro-optical device 2-3 cross bright dipping aperture 2-1 center and with bright dipping aperture 2-1 face perpendicular quadrature.Describedly go out electro-optical device 2-3 and comprise translating device 2-3-1 and be fixed on standard sources 2-3-2 on translating device 2-3-1.Be provided with the monitoring probe 2-3-3 that is fixedly connected with standard sources 2-3-2 on described translating device 2-3-1.All the other structures are with embodiment one.

Embodiment three: the luminous flux measurement device, as shown in Figure 3, be provided with the 3rd perforate 1-1-3 on the ball ancient piece of jade, round, flat and with a hole in its centre of described the first hemisphere 1-1, and described the 3rd perforate 1-1-3 and the second perforate 1-1-2 are symmetricly set on the ball ancient piece of jade, round, flat and with a hole in its centre of the first hemisphere 1-1.As shown in Figure 4 and 5, described the 3rd perforate 1-1-3 and the second perforate 1-1-2 are positioned at 1/2nd ball panel region of the first hemisphere 1-1.Auxiliary lamp 5 is not set on light-measuring integrating sphere 1 a ball ancient piece of jade, round, flat and with a hole in its centre and is used for blocking the first baffle plate 6 of auxiliary lamp 5.Be not fixedly connected with erecting bed 4 on the second perforate 1-1-2,calibration calibrating installation 2 directly is fixedly connected on the second perforate 1-1-2.All the other structures are with embodiment one.

Claims (10)

1. an arrow beam of light LED light flux measuring device, comprise light-measuring integrating sphere, calibration calibrating installation and optical measurement instrument; It is characterized in that light-measuring integrating sphere is comprised of the first hemisphere and the second hemisphere amalgamation, is provided with the first perforate and the second perforate on the ball ancient piece of jade, round, flat and with a hole in its centre of the first hemisphere; Described optical measurement instrument is arranged in the first perforate, and described calibration calibrating installation is arranged in the second perforate; Described calibration calibrating installation comprises the housing that is provided with the bright dipping aperture and is arranged at the electro-optical device that of enclosure interior, the optical axis that goes out electro-optical device cross bright dipping aperture center and with bright dipping aperture face perpendicular quadrature.

2. a kind of arrow beam of light LED light flux measuring device according to claim 1 is characterized in that describedly going out electro-optical device and comprising translating device and be fixed on standard sources on translating device.

3. a kind of arrow beam of light LED light flux measuring device according to claim 2, is characterized in that being provided with on described translating device the monitoring probe that is fixedly connected with standard sources.

4. according to claim 1 and 2 or 3 described a kind of arrow beam of light LED light flux measuring devices, is characterized in that being fixedly connected with an erecting bed in described the second perforate, and described calibration calibrating installation is arranged on erecting bed.

5. according to claim 1 and 2 or 3 described a kind of arrow beam of light LED light flux measuring devices is characterized in that being provided with the 3rd perforate on the ball ancient piece of jade, round, flat and with a hole in its centre of described the first hemisphere, and described the 3rd perforate and the second perforate are symmetricly set on the ball ancient piece of jade, round, flat and with a hole in its centre of the first hemisphere.

6. a kind of arrow beam of light LED light flux measuring device according to claim 5, is characterized in that described the 3rd perforate and the second perforate all are positioned at 1/2nd ball panel region of the first hemisphere.

7. a kind of arrow beam of light LED light flux measuring device according to claim 4, the first baffle plate that it is characterized in that being provided with auxiliary lamp on a described light-measuring integrating sphere ball ancient piece of jade, round, flat and with a hole in its centre and be used for blocking auxiliary lamp.

8. a kind of arrow beam of light LED light flux measuring device according to claim 4, is characterized in that described erecting bed is a translation stage or universal stage, and translation stage or universal stage can automatically controlled or manual translation or rotations.

9. a kind of arrow beam of light LED light flux measuring device according to claim 4, is characterized in that described erecting bed is to comprise a translation stage and the universal stage that is arranged on translation stage, and translation stage and universal stage can automatically controlled or manual translation or rotations.

10. a kind of arrow beam of light LED light flux measuring device according to claim 8 is characterized in that being provided with face battle array image measuring device on the ball ancient piece of jade, round, flat and with a hole in its centre of described the first hemisphere.

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