TWM578381U - Measuring device for array type lighting unit - Google Patents

Abstract

The present invention relates to a measuring device for an array type light emitting unit, which is used for measuring a plurality of light emitting units arranged in an array, comprising: a carrying platform comprising a light transmitting portion carrying the plurality of light emitting units; and a plurality of probe sets; a plurality of light-emitting units to be selectively electrically connected to the plurality of light-emitting units; a measuring component comprising a first image-type light receiver and a second image-type light receiver, the first image-type light The receiver and the second image-type optical receiver are respectively located on one side of the carrying platform, and the first image-type light receiver is movable relative to the light-transmitting portion, and the second image-type light receiver can be transparent to the light-receiving portion The light portion is relatively movable to selectively cause the first image type light receiver or the second image type light receiver to correspond to the light transmitting portion to receive the light generated by the plurality of to-be-side light emitting units.

Description

Array type illumination unit measuring device

This creation is directed to a measuring device for an array of light-emitting units.

In order to maintain the yield and quality of the light-emitting diode, the light-emitting diode is often detected for light. A conventional light-emitting diode measuring device is provided with an integrating sphere below the light-emitting diode, and receives the light of the light-emitting diode through the integrating sphere for photometric measurement.

However, the conventional technique can only measure a single light-emitting diode at a time through the integrating sphere, resulting in a long measurement time and a problem of poor measurement efficiency. Furthermore, the use of an integrating sphere for collecting light and measuring light has a problem of reflecting light and causing the amount of light to escape, resulting in inaccurate measurement.

Therefore, it is necessary to provide a novel and progressive array type light-emitting unit measuring device to solve the above problems.

The main purpose of the present invention is to provide a measuring device for an array type light emitting unit, which can measure the optical properties of a plurality of light emitting units by two image type light receivers to improve measurement efficiency.

In order to achieve the above object, the present invention provides a measuring device for an array type light emitting unit, which is used for measuring a plurality of light emitting units arranged in an array, wherein the measuring device of the array type light emitting unit comprises: a carrying platform comprising a light transmitting The light transmitting portion carries the plurality of light emitting units; the plurality of probe groups respectively selectively electrically contacting the plurality of light emitting units of the plurality of light emitting units; and a measuring component comprising a first image light receiving And a second image type light receiver, wherein the first image type light receiver and the second image type light receiver are respectively located at one side of the carrying platform, and the first image type light receiver is compatible with the light transmission The second image type light receiver can be relatively moved with the light transmitting portion to selectively make the first image type light receiver or the second image type light receiver correspond to the light transmitting portion. Receiving light generated by the plurality of to-be-side light emitting units.

In order to achieve the above object, the present invention further provides a measuring device for an array type light emitting unit, which is used for measuring a plurality of light emitting units arranged in an array, wherein the measuring device of the array type light emitting unit comprises: a carrying platform, which comprises a transparent a light-emitting portion carrying the plurality of light-emitting units; a plurality of probe sets respectively for selectively electrically contacting the plurality of light-emitting units to be tested; and a measuring component comprising a first image light a receiver, a second image light receiver, and a beam splitting component, wherein the light splitting component is aligned with the light transmitting portion, and the light of the plurality of light emitting units to be tested is split and projected onto the first image light receiver and the light source The second image type light receiver.

The structural features of the present invention and the intended effects thereof will be described by way of example only, but are not intended to limit the scope of the present invention.

Referring to FIG. 1 to FIG. 4, a first preferred embodiment of the present invention is shown. The measuring device 1 of the array type illuminating unit of the present invention is configured to measure a plurality of illuminating units 2 arranged in an array, which includes a The carrying platform 10, the plurality of probe sets 20 and a measuring component 30. Further, the embodiment is a movable measuring device, and the plurality of light emitting units 2 are light emitting diode chips or a plurality of crystal grains on a wafer.

The carrying platform 10 includes a light transmitting portion 11 that carries the plurality of light emitting units 2, and the light transmitting portion 11 can be a stepped hole, a through hole, or a transparent, transparent light for mounting the plurality of light emitting units 2. Material. The plurality of probe sets 20 respectively selectively electrically contact the plurality of light-emitting units 3 to be tested of the plurality of light-emitting units 2; the measuring component 30 includes a first image-type light receiver 31 and a second image-type light-receiving unit The first image type light receiver 31 and the second image type light receiver 32 are respectively located on one side of the carrying platform 10, and the first image type light receiver 31 is opposite to the light transmitting part 11 Moving, the second image type light receiver 32 is movable relative to the light transmitting portion 11 to selectively make the first image type light receiver 31 or the second image type light receiver 32 correspond to the light transmitting portion. 11 to receive the light generated by the plurality of to-be-side light-emitting units 2, whereby the optical properties of the plurality of light-emitting units 2 can be simultaneously measured to improve the measurement efficiency and save the measurement time. Furthermore, the optical properties of the plurality of light-emitting units 2 can be measured by a plurality of sets of image light receivers of the first image type light receiver 31 and the second image type light receiver 32, respectively, to improve the accuracy of the detection.

Further, the first image type light receiver 31 and the second image type light receiver 32 can be fixed, and the carrier platform 10 is opposite to the first image type light receiver 31 and the second image type light receiving unit. The device 32 moves; or vice versa, for example, the carrier platform 10 is a mobile platform. In this embodiment, the first image type light receiver 31 and the second image type light receiver 32 can simultaneously move relative to the carrying platform 10 to make the first image type light receiver 31 or the second image type. The light receiver 32 corresponds to the light transmitting portion 11 to facilitate calculation of the moving distance of the first image type light receiver 31 and the second image type light receiver 32.

In this embodiment, the carrying platform 10 is a quartz glass platform with high spectral transmittance.

The plurality of probe sets 20 are translatable relative to the light transmitting portion 11 for rapid displacement to the plurality of light emitting units 2 to be detected. In addition, the plurality of probe sets 20 are arranged in a matrix, and the plurality of light-emitting units 3 to be tested arranged in a matrix can be excited at the same time, which has a better measurement effect. In detail, the plurality of probe sets 20 are arranged in groups such as a probe card, a probe row, and a plurality of probes on a robot arm.

The first image type light receiver 31 and the second image type light receiver 32 are two different measuring optical indicators; the first image type light receiver 31 and the second image type light receiver 32 In the embodiment, the first image type light receiver 31 is a brightness measuring device, and the second image type light receiving unit 32 is a color measuring device. In other embodiments, the first image type optical receiver 31 and the second image type optical receiver 32 are used to measure various optical properties to improve the accuracy of the measurement. .

In the embodiment, the first image type light receiver 31 and the second image type light receiver 32 are located on the same side of the carrying platform 10, and have a small volume saving space and can accurately measure various light properties.

The first image type light receiver 31 and the second image type light receiver 32 are each provided with a plurality of light receiving units 331 and 332. The plurality of light receiving units 331, 332 are arranged in an array, and the light receiving units 331 and 332 are respectively arranged. Receiving light generated by one of the plurality of light-emitting units 3 to be tested, wherein the plurality of light-receiving units 331, 332 may respectively protrude from the surface of the first image-type light receiver 31 and the second image-type light receiver 32 or In the present embodiment, the number of the plurality of light receiving units 331, 332 corresponds to the number of the plurality of light emitting units 2, and the positions of the plurality of light receiving units 331, 332 and the position of the plurality of light emitting units 2 are Correspondingly, after the plurality of light receiving units 331, 332 are aligned with the plurality of light emitting units 2, the multiplicity probe set 20 only needs to be moved to contact the plurality of light emitting units 3 to be tested (SMU). Unit) Power supply illumination to streamline the measurement steps. In other embodiments, the number of the plurality of light receiving units may be smaller than the number of the plurality of light receiving units, and the first image type light receiver and the second image type light receiver are synchronized or not synchronized with the plurality of types of the light probe unit. After the alignment is moved, the plurality of light-emitting units to be tested are aligned. In this embodiment, each of the light emitting units 2 is a flip chip light emitting diode. In detail, each of the light-emitting units 2 includes a light-emitting surface 4 and an electrode surface 5, and the electrode surface 5 is provided with two electrodes 6, 7. Each of the probe sets 20 includes two probes 21, and the two probes 21 respectively Electrically contacting the two electrodes 6, 7 (such as positive and negative electrodes), the plurality of probe sets 20 and the measuring component 30 are respectively located on opposite sides of the carrying platform 10, and the light emitting surface 4 faces the measuring component 30, The electrode surface 5 faces the plurality of probe sets 20, has better measurement efficiency, and can directly measure the front light of each of the light-emitting units 2. In other embodiments, the back side light of each of the light emitting units may be measured (as shown in FIG. 5 , which is a second preferred embodiment of the present invention). It is worth mentioning that it can be applied to an array vertical cavity. Measurement of the surface emitter.

The measuring device 1 of the array type light emitting unit further includes an optical analyzing device 40, and the optical analyzing device 40 respectively connects the first image type light receiver 31 and the second image type light receiver 32, the first image type The light receiver 31 and the second image light receiver 32 respectively receive the light of the plurality of light-emitting units 3 to be tested to generate optical information, and the light analyzing device 40 receives and integrates the light of the first image light receiver 31. The information and the optical information of the second image light receiver 32 are analyzed and calculated for analysis and calculation, and have better analysis and calculation efficiency, such as lightness, spectrum, light color, and main information. The wavelength, peak wavelength, center wavelength, half-wave width, color purity, color coordinates, color rendering, etc., and the brightness data include light intensity (cd or mcd), luminous flux (lumens), optical power (W or mW), and the like. In detail, the optical analysis device 40 analyzes and analyzes the optical information of the first image type light receiver 31 and the second image type light receiver 32 through software. The optical analysis device 40 can be connected to the first image type light receiver 31 and the second image type light receiver 32 in a wired or wireless manner.

The optical analysis device 40 further includes at least one display 50, such as a screen, which displays the optical information.

Preferably, the measuring device 1 of the array type light emitting unit further includes a light attenuating element 60 disposed between the light transmitting portion 11 and the measuring component 30 to improve the accuracy of the measurement. To avoid excessive measurement of light, resulting in inaccurate measurement. In the embodiment, the light attenuating element 60 is located between the first image type light receiver 31 and the carrying platform 10 .

Please refer to FIG. 6, which shows a third preferred embodiment of the present invention. The present embodiment is a fixed measuring device 1', which differs from the first embodiment in that the measuring component 30 further includes a In the present embodiment, the light splitting element is a beam splitter, and the light splitting element 70 is aligned with the light transmitting portion 11 for splitting the light of the plurality of light emitting units 3 to be detected into the first image light. The receiver 31 and the second image light receiver 32. In the embodiment, the light splitting component 70 is disposed between the first image type light receiver 31, the second image type light receiver 32, and the carrying platform 10, so that the first image type light receiver 31 is provided. And the second image type light receiver 32 can simultaneously receive the light of the plurality of light-emitting units 3 to be tested to shorten the measurement time. The number of the at least one display 50 is plural, and the plurality of displays 50 respectively display the optical information of the first image type light receiver 31 or the light information of the second image type light receiver 32.

In summary, the measuring device of the array type illuminating unit of the present invention can simultaneously measure the optical properties of the plurality of illuminating units to improve measurement efficiency and save measurement time. Furthermore, the optical properties of the complex light-emitting unit can be measured by two image light receivers respectively to improve the accuracy of the detection.

1, 1'‧‧‧Measurement device

2‧‧‧Lighting unit

3‧‧‧Lighting unit to be tested

4‧‧‧Lighting surface

5‧‧‧electrode surface

6, 7‧‧‧ electrodes

10‧‧‧Loading platform

11‧‧‧Transmission Department

20‧‧‧ probe set

21‧‧‧ probe

30‧‧‧Measurement components

31‧‧‧First Image Light Receiver

32‧‧‧Second image light receiver

331, 332‧‧‧Light receiving unit

40‧‧‧Light analysis device

50‧‧‧ display

60‧‧‧Light attenuation components

70‧‧‧Spectral components

1 is a perspective view of a first preferred embodiment of the present invention. Figure 2 is a partially enlarged cross-sectional view showing a first preferred embodiment of the present invention. Figure 3 is a diagram showing the state of use of a first preferred embodiment of the present invention. 4 is another use state diagram of a first preferred embodiment of the present invention. FIG. 5 is a view showing a state of use of a second preferred embodiment of the present invention. Figure 6 is a diagram showing the state of use of a third preferred embodiment of the present invention.

Claims (13)

The measuring device of the array type illuminating unit is configured to measure a plurality of illuminating units arranged in an array, wherein the measuring device of the illuminating unit comprises: a carrying platform, comprising a light transmitting portion, the light transmitting portion carrying the plurality a plurality of probe units respectively for selectively electrically contacting the plurality of light-emitting units of the plurality of light-emitting units; a measuring component comprising a first image-type light receiver and a second image-type light receiver The first image type light receiver and the second image type light receiver are respectively located at one side of the carrying platform, and the first image type light receiver is movable relative to the light transmitting portion, the second image type The light receiver can be relatively movable with the light transmitting portion to selectively make the first image type light receiver or the second image type light receiver correspond to the light transmitting portion to receive the plurality of to-side side light emitting units. Light. The measuring device of the array type light emitting unit of claim 1, wherein the first image type light receiver and the second image type light receiver are simultaneously movable relative to the carrying platform to enable the first image type light receiving The second image type light receiver or the second image type light receiver corresponds to the light transmitting portion. The measuring device of the array type illuminating unit is configured to measure a plurality of illuminating units arranged in an array, wherein the measuring device of the illuminating unit comprises: a carrying platform, comprising a light transmitting portion, the light transmitting portion carrying the plurality a plurality of probe units respectively for selectively electrically contacting the plurality of light-emitting units of the plurality of light-emitting units; a measuring component comprising a first image-type light receiver and a second image-type light receiver And a light splitting component, wherein the light splitting component is aligned with the light transmitting portion for splitting the light of the plurality of light emitting units to be tested into the first image light receiver and the second image light receiver. The measuring device of the array type light emitting unit according to claim 3, wherein the beam splitting element is disposed between the first image type light receiver, the second image type light receiver and the carrying platform. The measuring device of the array type light emitting unit according to any one of claims 1 to 4, wherein the first image type light receiver and the second image type light receiver measure different optical properties Device. The measuring device of the array type light emitting unit of claim 5, wherein the first image type light receiver and the second image type light receiver are respectively a brightness, chromaticity or spectrum detector. The measuring device of the array type light emitting unit according to any one of claims 1 to 4, wherein the first image type light receiver and the second image type light receiver are located on the same side of the carrying platform. The measuring device of the array type light emitting unit according to any one of claims 1 to 4, wherein the first image type light receiver and the second image type light receiver are each provided with a plurality of light receiving units, the plural The light receiving units form an array arrangement, and the positions of the light receiving units correspond to the positions of one of the light emitting units. The measuring device of the array type light emitting unit according to claim 8, wherein the number of the plurality of light receiving units corresponds to the number of the plurality of light emitting units, and the position of the plurality of light receiving units and the position of the plurality of light emitting units are one to one Correspond to each other. The measuring device of the array type light emitting unit according to any one of claims 1 to 4, further comprising an optical analyzing device, wherein the optical analyzing device respectively connects the first image type light receiver and the second image type light The first image type light receiver and the second image type light receiver respectively receive light of the plurality of light emitting units to be tested to generate optical information, and the light analyzing device receives and integrates the first image type light receiving The optical information of the device and the optical information of the second image light receiver are analyzed and calculated. The measuring device of the array type light emitting unit according to any one of claims 1 to 4, further comprising a light attenuating element disposed between the light transmitting portion and the measuring component. The measuring device of the array type light emitting unit according to any one of claims 1 to 4, wherein each of the light emitting units comprises a light emitting surface and an electrode surface, the electrode surface is provided with two electrodes, and each of the probe groups comprises a second probe, the two probes are electrically connected to the two electrodes respectively, the plurality of probe sets and the measuring component are respectively located on opposite sides of the carrying platform, and the light emitting surface faces the measuring component, and the electrode surface faces the plural Probe set. The measuring device of the array type light emitting unit of claim 2 or 4, wherein the first image type light receiver and the second image type light receiver are two different measuring instruments for measuring optical properties; An image light receiver and the second image light receiver are respectively a brightness, chromaticity or spectrum detector; the first image type light receiver and the second image type light receiver are located on the carrying platform The first image type light receiver and the second image type light receiver are each provided with a plurality of light receiving units, and the plurality of light receiving units are arranged in an array, and the positions of the light receiving units correspond to one of the light emitting units. a position of the plurality of light receiving units corresponding to the number of the plurality of light emitting units, the position of the plurality of light receiving units and the position of the plurality of light emitting units are corresponding to each other; the measuring device of the array type light emitting unit further comprises An optical analysis device, wherein the optical analysis device is respectively connected to the first image type light receiver and the second image type light receiver, wherein the first image type light receiver and the second image type light receiver respectively Receiving light of the plurality of light-emitting units to be tested to generate optical information, the light analyzing device receiving and integrating the optical information of the first image-type optical receiver and the optical information of the second image-type optical receiver for analysis And the calculation device of the array type light-emitting unit further includes a light-attenuating element disposed between the light-transmitting portion and the measuring component; each of the light-emitting units includes a light emitting surface and an electrode surface. The electrode surface is provided with two electrodes, each of the probe sets includes two probes, and the two probes are electrically connected to the two electrodes respectively, and the plurality of probe sets and the measuring component are respectively located on opposite sides of the carrying platform, The light emitting surface faces the measuring component, the electrode surface faces the plurality of probe sets; the carrying platform is a quartz glass platform; each of the light emitting The unit is a flip-chip light-emitting diode; the plurality of probe sets are translatable relative to the light-transmitting portion; the light analyzing device further includes at least one display, the at least one display displays the optical information; the plurality of probe sets are in a matrix arrangement.