JP3173730U - Light-emitting element inspection device - Google Patents

Abstract

A light-emitting element inspection apparatus capable of quickly measuring light emission characteristics is provided.
In the inspection device for a light emitting element, a light receiver is disposed above a transport base, has an internal space, and receives light emitted from the light emitting element to the internal space. The light receiver 7 is formed with an insertion port 7a facing downward. The elevating cylinder 63 is inserted into the insertion port 7a of the light receiver 7, and can be moved forward and backward. An opening 63 a is formed in the bottom 634 of the elevating cylinder 63. When the elevating cylinder 63 is lowered, the edge of the opening 63a comes into contact with the non-radiating part of the light emitting element L, and the light emitting part (lens) of the light emitting element L is located in the opening 63a.
[Selection] Figure 4A

Description

  The present invention relates to a light-emitting element inspection apparatus, and more particularly to a technique for detecting light emitted from a light-emitting element.

  2. Description of the Related Art Conventionally, an apparatus that measures characteristics of electronic components such as light emitting elements and classifies electronic components according to the results is known (see Patent Document 1).

JP 2007-192576 A Noto 3161943 gazette

  By the way, the electronic component inspection apparatus described in Patent Document 2 raises the mounting table of the component transport unit arranged on the outer edge of the intermittent rotating disk, so that the light receiving element is grounded on the mounting table. To the measured position. Moreover, this inspection apparatus raises the probe located below the mounting table together with the mounting table, thereby inserting the probe into an insertion hole formed in the mounting table and bringing it into contact with the terminal of the light emitting element. When raising both the mounting table and the probe in this way, it is necessary to set the moving distance of the probe located below the mounting table to be relatively long. It takes time to move. In addition, since it is necessary to provide a mechanism for raising the mounting table in each component conveying unit, the apparatus configuration becomes complicated.

  The present invention has been made in view of the above circumstances, and a main object of the present invention is to provide a light emitting element inspection apparatus capable of quickly measuring light emission characteristics.

  In order to solve the above-described problems, a light-emitting element inspection apparatus according to the present invention includes a carrier, a light receiver, a bottomed lifting cylinder, and a probe. A light emitting element having a light emitting part and a non-radiating part is placed on the upper surface of the carrier. The light receiver is disposed above the carrier, has an internal space, and receives light emitted from the light emitting element to the internal space. The light receiver is formed with an insertion port facing downward. The elevating cylinder is inserted into the insertion port of the light receiver, and can be moved back and forth in the vertical direction. An opening is formed at the bottom of the lifting cylinder. When the elevating cylinder is lowered, the edge of the opening contacts the non-radiating part of the light emitting element, and the light emitting part of the light emitting element is located in the opening. The probe contacts a terminal of the light emitting element placed on the carrier and energizes the light emitting element.

  According to the present invention, since the elevating cylinder inserted in the light receiver moves up and down, it is possible to measure the light emission characteristics more quickly than in the prior art.

  1 aspect of this invention WHEREIN: The internal peripheral surface of the said raising / lowering cylinder is a reflective surface which reflects the light radiated | emitted from the said light emitting element. According to this, it is possible to suppress the loss of light emitted from the light emitting element, passing through the lifting cylinder, and reaching the internal space of the light receiver.

  In one aspect of the present invention, the light emitting portion of the light emitting element is a convex lens, and is inserted into the opening when the lifting cylinder is lowered. According to this, the light radiated | emitted from the lens inserted in opening is guide | induced to the internal space of a light receiver.

  In this aspect, the side wall of the opening of the lifting cylinder may have a tapered shape that widens upward. According to this, it is possible to guide more light emitted from the lens inserted into the opening to the internal space of the light receiver.

  In one aspect of the present invention, the transport base is formed with a through hole into which the probe is inserted, and the probe can be advanced and retracted in the vertical direction. When the probe is raised, the probe is inserted into the through hole, and the light emission It contacts the terminal provided on the lower surface of the element. According to this, it is possible to make a probe contact the terminal provided in the lower surface of the light emitting element through the through hole.

  In this aspect, the probe may contact the lower surface of the light emitting element after the elevating cylinder contacts the upper surface of the light emitting element. According to this, when the probe contacts the lower surface of the light emitting element, it is possible to suppress the light emitting element from being lifted.

  In this aspect, after the probe is separated from the lower surface of the light emitting element, the elevating cylinder may be separated from the upper surface of the light emitting element. According to this, when the probe moves away from the lower surface of the light emitting element, it is possible to suppress the light emitting element from being lifted.

  In this aspect, the cam that advances and retracts the elevating cylinder in the vertical direction and the cam that advances and retracts the probe in the vertical direction may be provided on the same shaft. According to this, it is easy to advance and retract the lifting cylinder and the probe at a desired timing.

  In one aspect of the present invention, there is no mechanism for advancing and retracting the transport table in the vertical direction. According to this, the apparatus configuration can be simplified.

  In one aspect of the present invention, the light emitting device further includes a translucent member that divides the internal space of the elevating cylinder into a first space that is continuous with the internal space of the light receiver and a second space that is continuous with the opening. According to this, the light radiated | emitted from a light emitting element permeate | transmits a translucent member, and is guide | induced to the internal space of a light receiver.

  In this aspect, the elevating cylinder further includes an injector that is formed with a through hole connected to the second space and injects gas into the second space through the through hole. According to this, it is possible to easily separate the light emitting element from the lifting cylinder.

  The light-emitting element inspection apparatus according to the present invention includes a carrier, a light receiver, a bottomed lifting cylinder, a probe, a characteristic measurement unit, a position determination unit, and a classification operation unit. A light emitting element having a light emitting part and a non-radiating part is placed on the upper surface of the carrier. The light receiver is disposed above the carrier, has an internal space, and receives light emitted from the light emitting element to the internal space. The light receiver is formed with an insertion port facing downward. The elevating cylinder is inserted into the insertion port of the light receiver, and can be moved back and forth in the vertical direction. An opening is formed at the bottom of the lifting cylinder. When the elevating cylinder is lowered, the edge of the opening contacts the non-radiating part of the light emitting element, and the light emitting part of the light emitting element is located in the opening. The probe contacts a terminal of the light emitting element placed on the carrier and energizes the light emitting element. The characteristic measurement unit measures a light emission characteristic of the light emitting element based on a detection signal from the light receiver. The position determining unit determines a housing position of the light emitting element from a plurality of housing positions based on the light emission characteristics of the light emitting element. The classification operation unit moves the light emitting elements placed on the transport table to the determined accommodation position.

  According to the present invention, since the elevating cylinder inserted in the light receiver moves up and down, it is possible to measure the light emission characteristics more quickly than in the prior art. And a light emitting element is moved to the accommodation position based on the light emission characteristic measured in this way.

It is a top view showing the structural example of the inspection apparatus of a light emitting element. It is a front view of a light emitting element. It is a top view of a light emitting element. It is a back view of a light emitting element. It is a side view showing the structural example of the light emission characteristic measurement unit. It is sectional drawing showing the principal part before a raising / lowering cylinder fall. It is sectional drawing showing the principal part after a raising / lowering cylinder descend | falls. It is a figure showing the example of a profile of a cam. It is a block diagram showing the example of a structure of the inspection apparatus of a light emitting element. It is a figure showing the example of the content of a table.

  An embodiment of a light-emitting element inspection apparatus according to the present invention will be described with reference to the drawings.

  FIG. 1 is a plan view illustrating a configuration example of a light-emitting element inspection apparatus 1. The light-emitting element inspection apparatus 1 includes an intermittent rotating disk 2 that intermittently rotates in the direction of arrow R in FIG. Further, the light-emitting element inspection apparatus 1 includes a component feeder 3, a component transfer machine 34, a position adjuster 36, a light emission characteristic measuring unit 12, and a sub-intermittent rotary disk 4 around the intermittent rotary disk 2. The parts transfer machine 39 and the classification operation unit 9 are provided.

  The intermittent rotating disk 2 includes a disk part 21 that is rotatably arranged, and a plurality of component conveying parts 22 that are arranged at predetermined angular intervals on the outer edge part of the disk part 21. The intermittent rotating disk 2 rotates intermittently in units of the arrangement angle of the component conveying unit 22. A transport table 23 on which the light emitting element L is placed is provided at the tip of each component transport unit 22.

  The component feeder 3 includes an alignment transport unit 32 that extends toward the intermittent rotating disk 2. The alignment transport unit 32 transports the light emitting elements L toward the intermittent rotating disk 2 while aligning the light emitting elements L in a line. The light emitting element L that has reached the tip of the aligning and conveying unit 32 is mounted on the conveying table 23 of the component conveying unit 22 by the component transfer machine 34.

  The position adjuster 36 adjusts the position of the light emitting element L by sandwiching the light emitting element L placed on the conveyance stage 23 of the component conveying unit 22 between two arms having a valley at the tip.

  The light emission characteristic measurement unit 12 includes a light receiver 7 composed of an integrating sphere, and measures light emission characteristics such as the luminance of the light emitting element L mounted on the component transport unit 22. The light emission characteristic measuring unit 12 will be described in detail later.

  The sub-intermittent rotary disk 4 includes a disk part 41 that is rotatably arranged, and a plurality of component conveying parts 42 that are arranged on the outer edge part of the disk part 41. The light emitting element L placed on the component transport unit 22 is replaced with the component transport unit 42 by the component transfer machine 39. A plurality of light emitting elements L (two in this example) are placed on each of the component conveying units 42.

  The classification operation unit 9 includes a head unit 91 that can hold the light emitting element L and an arm unit 93 that adjusts the position of the head unit 91. The plurality of light emitting elements L placed on the component conveying unit 42 are conveyed by the head unit 91 to above the plurality of containers B arranged two-dimensionally, and are respectively accommodated in one container B determined from the inside. The

  2A to 2C are a front view, a plan view, and a back view of the light emitting element L. FIG. The light emitting element L includes a rectangular plate-shaped substrate portion Ls, a hemispherical lens Lp protruding in a convex shape from the upper surface of the substrate portion Ls, and a pair of terminals Lt provided on the lower surface of the substrate portion Ls. Yes. The substrate portion Ls is mainly made of an insulating material such as ceramic, and includes a light emitting portion made of a semiconductor therein. The light emitting unit is electrically connected to the terminal Lt.

  The lens Lp is made of a transparent resin material such as silicone, and light emitted from the light emitting part is transmitted through the lens Lp and emitted to the outside. That is, of the upper surface of the light emitting element L, the lens Lp is a light emitting portion that emits light, and a portion Ln made of an insulating material located around the lens Lp is a non-radiating portion that does not emit light.

  Note that the present invention is not limited to this mode. For example, the light emitting element L may have a flat upper surface, and a circular or elliptical light emitting portion and a non-radiating portion located around the light emitting portion may be provided on the flat upper surface. .

  FIG. 3 is a side view illustrating a configuration example of the light emission characteristic measurement unit 12. The light emission characteristic measurement unit 12 includes a probe lift unit 5, a stage lift unit 6, a light receiver 7, and a cam drive unit 8.

  The probe lifting / lowering unit 5 includes a plurality of probes 55 extending in the vertical direction located below the transport base 23 on which the light emitting element L is placed. The probe lift unit 5 is raised to measure the light emission characteristics. The probe 55 is brought into contact with the light emitting element L placed on the substrate, and then the probe 55 is lowered.

  Specifically, the probe elevating unit 5 includes a fixed portion 51 fixed to the pedestal, an elevating portion 52 that can be moved up and down with respect to the fixed portion 51, and a probe provided at the upper end of the elevating portion 52. A holding part 53 that holds 55, a cam follower 54 provided at the lower end of the elevating part 52, and a tension spring 56 that spans between the fixed part 51 and the elevating part 52. Of these, the holding portion 53 is made of an insulating material such as plastic, and the other portions are made of metal such as stainless steel.

  The fixed portion 51 is provided with a rail portion 512 extending in the vertical direction. Further, the shaft portion 83 of the cam drive unit 8 is inserted into the fixed portion 51. The fixed portion 51 is provided with a spring support portion 514 on which one end of the tension spring 56 is hung. The elevating part 52 is provided with a runner part 523 fitted to the rail part 512 of the fixed part 51. Further, the elevating part 52 is provided with a spring support part 525 on which the other end of the tension spring 56 is hung.

  The cam follower 54 is in contact with the cam 85 positioned below and transmits the force received from the cam 85 to the elevating unit 52. The tension spring 56 pulls the elevating part 52 downward. When receiving the force from the cam 85 via the cam follower 54, the elevating part 52 slides upward against the pulling force of the tension spring 56.

  The stage elevating unit 6 includes a bottomed elevating cylinder 63 positioned above the transport table 23 on which the light emitting element L is placed. When measuring the light emission characteristics, the elevating cylinder 63 is moved down to The lifting cylinder 63 is brought into contact with the mounted light emitting element L, and then the lifting cylinder 63 is raised.

  Specifically, the stage elevating unit 6 includes a fixed portion 61 fixed to the pedestal, an elevating portion 62 that can be moved up and down with respect to the fixed portion 61, and an elevating cylinder provided at the upper end of the elevating portion 62. 63, a cam follower 64 provided at the lower end of the elevating part 62, and a tension spring 66 spanned between the fixed part 61 and the elevating part 62. These are made of metal such as stainless steel.

  The fixed portion 61 is provided with a rail portion 612 extending in the vertical direction. Further, the shaft portion 83 of the cam drive unit 8 is inserted into the fixed portion 61. The fixed portion 61 is provided with a spring support portion 614 on which one end of the tension spring 66 is hung. The elevating / lowering part 62 is provided with a runner part 623 fitted to the rail part 612 of the fixing part 61. Further, the elevating part 62 is provided with a spring support part 626 on which the other end of the tension spring 66 is hung.

  The cam follower 64 is in contact with the cam 86 positioned below and transmits the force received from the cam 86 to the elevating unit 62. The tension spring 66 pulls the elevating part 62 downward. When receiving the force from the cam 86 via the cam follower 64, the elevating part 62 slides upward against the pulling force of the tension spring 66.

  A light receiver 7 composed of an integrating sphere is disposed above the elevating cylinder 63. The light receiver 7 has an internal space and receives light emitted from the light emitting element L to the internal space. An insertion port 7a facing downward is formed at the lower end of the light receiver 7, and an elevating cylinder 63 is inserted into the insertion port 7a. The lifting cylinder 63 will be described in detail later.

  The cam drive unit 8 includes a motor 81 and a shaft portion 83 extending from the motor 81. A cam 85 positioned below the cam follower 54 of the probe lift unit 5 and a cam 86 positioned below the cam follower 64 of the stage lift unit 6 are attached to the shaft 83. The cams 85 and 86 drive the probe lifting / lowering unit 5 and the stage lifting / lowering unit 6, respectively.

  4A and 4B are cross-sectional views showing the main part of the light emission characteristic measuring unit 12. FIG. At the time of measuring the light emission characteristics, the elevating cylinder 63 descends and comes into contact with the light emitting element L placed on the transport table 23 and then rises. On the other hand, the probe 55 rises to contact the light emitting element L placed on the transport table 23 and then descends. 4A shows a state before the elevating cylinder 63 is lowered and before the probe 55 is raised, and FIG. 4B shows a state after the elevating cylinder 63 is lowered and the probe 55 is raised.

  The elevating cylinder 63 includes a cylindrical tube portion 632 and a bottom portion 634 that closes the bottom of the tube portion 632, and is inserted into an insertion port 7 a formed at the lower end of the light receiver 7. The elevating cylinder 63 is opened upward, and its internal space is continuous with the internal space of the light receiver 7. There is a slight gap between the outer peripheral surface of the cylinder portion 632 of the elevating cylinder 63 and the edge of the insertion port 7 a of the light receiver 7. The length of the cylinder portion 632 of the elevating cylinder 63 is set to a size that does not come out of the insertion port 7a of the light receiver 7 even when the elevating cylinder 63 is lowered.

An opening 63 a penetrating in the vertical direction is formed at the center of the bottom 634 of the elevating cylinder 63. Specifically, a recess is formed in the lower surface of the bottom portion 634 of the elevating cylinder 63, and an opening 63a is formed in the center of the recess. The side wall of the opening 63a has a tapered shape that spreads upward. The inner peripheral surface 63 b of the cylindrical portion 632 of the lifting cylinder 63 is a surface coated with a reflective material such as barium sulfate (BaSO ₄ ), and reflects light emitted from the light emitting element L to the internal space of the light receiver 7. .

  At the bottom of the inner space of the lifting cylinder 63, a disc-shaped light-transmitting member 67 having a depression formed in the center of the lower surface is disposed. The translucent member 67 is made of a transparent material such as glass and can transmit light from the light emitting element L. The translucent member 67 divides the internal space of the elevating cylinder 63 into a first space 67a that continues to the internal space of the light receiver 7 and a second space 67b that continues to the opening 63a. The second space 67b is a space formed between the translucent member 67 and the bottom portion 634, and is sufficiently smaller than the first space 67a.

  In addition, a through-hole 63c connected to the second space 67b is formed in the bottom 634 of the elevating cylinder 63. The through hole 63c extends from the outer edge toward the center of the bottom 634, and is opened upward in the vicinity of the opening 63a. An injector 16 described later is connected to the through hole 63c through a pipe (not shown), and gas is injected into the second space 67b by the operation of the injector 16.

  As shown in FIG. 4B, when the elevating cylinder 63 descends and is positioned at the lowermost end of the movable range, the bottom 634 of the elevating cylinder 63 comes into contact with the upper surface of the light emitting element L placed on the transport table 23. In other words, the light emitting element L placed on the transport base 23 is sandwiched between the bottom 634 of the elevating cylinder 63 and the transport base 23. Specifically, the opening 63a formed in the bottom portion 634 of the elevating cylinder 63 has a shape and a size in which the lens Lp can be inserted and the substrate portion Ls cannot be inserted in the light emitting element L (see FIG. 2). For this reason, when the elevating cylinder 63 is lowered, the lens (light emitting portion) Lp is inserted into the opening 63a, and the edge of the opening 63a contacts the portion (non-radiating portion) Ln made of an insulating material around the lens Lp. To do.

  Further, as shown in FIG. 4B, when the probe 55 is raised and positioned at the uppermost end of the movable range, the probe 55 passes through the through hole 23a of the transport table 23, and the light emitting element placed on the transport table 23 Contact the lower surface of L. Specifically, a terminal Lt is provided on the lower surface of the light emitting element L (see FIG. 2), and the probe 55 contacts the terminal Lt of the light emitting element L through the through hole 23a of the transport base 23. Energize. When energized by the probe 55, the light emitting element L emits light from the lens Lp to the outside. The light emitted from the lens Lp inserted into the opening 63 a passes through the light transmitting member 67, passes through the lifting cylinder 63, and reaches the internal space of the light receiver 7.

  Furthermore, after the state shown in FIG. 4, when the elevating cylinder 63 is raised and the probe 55 is lowered, the second space 67 b formed between the bottom 634 of the elevating cylinder 63 and the translucent member 67. In addition, a gas is injected through the through hole 63c by an injector 16 described later. The injected gas is discharged to the outside from the second space 67 b through the opening 63 a, whereby the light emitting element L is separated from the bottom 634 of the elevating cylinder 63 and remains placed on the transport table 23. . The gas injection may be started before the elevating cylinder 63 starts to rise, or after the elevating cylinder 63 starts to rise.

  FIG. 5 is a diagram illustrating a profile example of the cams 85 and 86 included in the cam drive unit 8. The horizontal axis of the figure represents the rotation angles of the cams 85 and 86, and 0 ° and 360 ° correspond to the time when the transport base 23 reaches a position below the lifting cylinder 63 and above the probe 55. The vertical axis in the figure represents the radii of the cams 85 and 86. The motor 81 causes the shaft 83 to rotate once during the period from when the conveyance base 23 reaches the position below the lifting cylinder 63 and above the probe 55 until it leaves.

  When the cam 86 makes one rotation along with the rotation of the shaft portion 83, the elevating cylinder 63 descends and comes into contact with the light emitting element L placed on the transport table 23, and then rises to the original position. That is, the cam 86 reaches the lowest radius from the highest radius during the rotation angle of 0 ° to 180 °, and then reaches the highest radius from the lowest radius during the rotation angle of 180 ° to 360 °. While the cam 86 is at the lowest radius, the elevating cylinder 63 reaches the lowest point of the movable range and contacts the upper surface of the light emitting element L.

  When the cam 85 rotates once in accordance with the rotation of the shaft portion 83, the probe 55 rises and comes into contact with the light emitting element L placed on the transport table 23, and then descends to the original position. That is, the cam 85 reaches the highest radius from the lowest radius during the rotation angle of 0 ° to 180 °, and then reaches the lowest radius from the highest radius during the rotation angle of 180 ° to 360 °. While the cam 85 is at the maximum radius, the probe 55 reaches the uppermost point of the movable range and contacts the lower surface of the light emitting element L.

  Here, the timing at which the cam 86 reaches the lowest radius is set to be earlier than the timing at which the cam 85 reaches the highest radius. For this reason, the elevating cylinder 63 contacts the upper surface of the light emitting element L, and the probe 55 contacts the lower surface of the light emitting element L after the light emitting element L is sandwiched between the elevating cylinder 63 and the carrier 23.

  The timing at which the cam 86 leaves the lowest radius is set to be later than the timing at which the cam 85 leaves the highest radius. For this reason, after the probe 55 is separated from the lower surface of the light emitting element L, the elevating cylinder 63 is separated from the upper surface of the light emitting element L, and the sandwiching of the light emitting element L between the elevating cylinder 63 and the transport base 23 is released.

  FIG. 6 is a block diagram illustrating a configuration example of the light-emitting element inspection apparatus 1. In the light-emitting element inspection apparatus 1, a main control unit 10 that controls the entire apparatus and a characteristic measurement unit 17 as a tester are connected to each other. A motor 81 and an injector 16 included in the light emission characteristic measurement unit 12 are connected to the main control unit 10, and a classification operation unit 9 is also connected. The characteristic measuring unit 17 is connected to a light receiver 7 composed of an integrating sphere. Further, the characteristic measuring unit 17 functionally includes a position determining unit 19.

  In addition, the main control unit 10 controls the intermittent turntable 2 included in the light-emitting element inspection apparatus 1. In the intermittent rotation of the intermittent rotating disk 2, a rotation period in which the intermittent rotating disk 2 rotates by a predetermined angle and a stop period in which the rotation stops are alternately repeated. The motor 81 and the like included in the light emission characteristic measurement unit 12 are controlled so as to operate during the stop period of the intermittent rotating disk 2.

  The main control unit 10 and the characteristic measurement unit 17 are configured as a computer or PLC (programmable controller) including a CPU (central processing unit) and a RAM as a work area thereof. The main control unit 10 and the characteristic measurement unit 17 include a storage device that stores programs and data necessary for the operation of the CPU.

  The characteristic measurement unit 17 is connected to the probe 55, and the light is emitted from the light emitting element L by energizing the light emitting element L through the probe 55 in accordance with the timing when the probe 55 contacts the terminal Lt of the light emitting element L. (See FIG. 4B).

  The characteristic measurement unit 17 is connected to the light receiver 7 and receives a detection signal from the light receiver 7 to measure light emission characteristics such as luminance of the light emitting element L. Here, the light detected by the light receiver 7 is radiated from the lens Lp of the light emitting element L inserted into the opening 63 a of the lifting cylinder 63, passes through the translucent member 67, passes through the lifting cylinder 63, and passes through the light receiver 7. (See FIG. 4B).

  The injector 16 is connected to the through hole 63c and discharges gas in response to a command from the main control unit 10. The injector 16 is composed of, for example, an electromagnetic valve. Specifically, the injector 16 injects a gas into the second space 67b of the elevating cylinder 63 in accordance with the timing when the elevating cylinder 63 rises, thereby pulling the light emitting element L away from the elevating cylinder 63 (see FIG. 4B). reference).

  The position determination unit 19 included in the characteristic measurement unit 17 determines the accommodation position of the light emitting element L based on the measured light emission characteristics. Specifically, first, the position determination unit 19 determines which class among a plurality of predetermined classes the light emitting element L corresponds to based on the acquired light emission characteristics. The number of classes is, for example, the same as the number of containers B, for example 128. Next, the position determination unit 19 refers to the table held in the storage device, and determines the container B that houses the light emitting element L from the plurality of containers B based on the determined class. As shown in FIG. 7, in the table, “class” of the light emission characteristics and “container position” of each container B are associated with each other.

  In addition, the position determination unit 19 manages the position of each container B for positioning the head unit 91 of the classification operation unit 9 by two-dimensional orthogonal coordinates or polar coordinates, and represents the position of the container B that houses the light emitting element L. The coordinate information is output to the main control unit 10. The main control unit 10 drives the classification operation unit 9 based on the coordinate information. Accordingly, the classification operation unit 9 positions the head portion 91 holding the light emitting element L above the designated container B, and accommodates the light emitting element L in the container B.

  Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications can be made by those skilled in the art.

  In the above embodiment, the light emitted from the light emitting element L is transmitted through the translucent member 67 and is expected to be attenuated to some extent. Therefore, the absorption characteristic of the translucent member 67 is obtained in advance, and based on this, the light emitting characteristic is obtained. The measurement result may be corrected.

  DESCRIPTION OF SYMBOLS 1 Inspection device of light emitting element, 10 main control part, 12 light emission characteristic measurement unit, 16 injector, 17 characteristic measurement part, 19 position determination part, 2 intermittent turntable, 21 disc part, 22 component conveyance part, 23 conveyance stand , 23a Through-hole, 3 parts supply machine, 32 alignment transport section, 34 parts transfer machine, 36 position adjustment machine, 39 parts transfer machine, 4 sub-intermittent rotating disk, 41 disc section, 42 parts transport section, 5 probe Lifting unit, 51 fixed part, 512 rail part, 514 spring support part, 52 lifting part, 523 runner part, 525 spring support part, 53 holding part, 54 cam follower, 55 probe, 56 tension spring, 6 stage lifting unit, 61 fixed Part, 612 rail part, 614 spring support part, 62 lift part, 623 runner part, 625 spring support part, 63 lift cylinder, 63a opening 63b inner peripheral surface, 63c through-hole, 632 cylinder, 634 bottom, 64 cam follower, 66 tension spring, 67 translucent member, 67a first space, 67b second space, 7 light receiver, 7a insertion port, 8 cam Drive unit, 81 motor, 83 shaft part, 85 cam, 86 cam, 9 sort operation unit, 91 head, 93 arm, B container, L light emitting element, Lp light emitting part (lens), Ln non-radiating part, Ls substrate part , Lt terminal.

Claims (12)

A carrier on which a light emitting element having a light emitting portion and a non-radiating portion is placed on the upper surface;
A light receiver that is disposed above the carrier, has an internal space, receives light emitted from the light emitting element to the internal space, and has an insertion port facing downward;
A bottomed lifting cylinder that is inserted into the insertion port of the light receiver and can be moved back and forth in the vertical direction, and an opening is formed at the bottom, and when the lifting cylinder is lowered, the edge of the opening is the edge of the light emitting element. A lifting cylinder in contact with the non-radiating part and in which the light emitting part of the light emitting element is located in the opening,
A probe that is in contact with a terminal of the light emitting element placed on the carrier and energizes the light emitting element;
A light-emitting element inspection apparatus comprising: The inner peripheral surface of the elevating cylinder is a reflective surface that reflects light emitted from the light emitting element.
The light-emitting element inspection apparatus according to claim 1. The light emitting portion of the light emitting element is a convex lens, and is inserted into the opening when the lifting cylinder is lowered.
The light-emitting element inspection apparatus according to claim 1. The side wall of the opening of the lifting cylinder has a tapered shape that spreads upward.
The light-emitting element inspection apparatus according to claim 3. A through hole into which the probe is inserted is formed in the transport table,
The probe can be moved back and forth in the vertical direction, and when it is raised, it is inserted into the through hole and contacts the terminal provided on the lower surface of the light emitting element.
The light-emitting element inspection apparatus according to claim 1. After the lifting cylinder contacts the upper surface of the light emitting element, the probe contacts the lower surface of the light emitting element.
The light-emitting element inspection apparatus according to claim 5. After the probe is separated from the lower surface of the light emitting element, the lifting cylinder is separated from the upper surface of the light emitting element.
The light-emitting element inspection apparatus according to claim 5. A cam for advancing and retracting the elevating cylinder in the vertical direction and a cam for advancing and retracting the probe in the vertical direction are provided on the same shaft.
The light-emitting element inspection apparatus according to claim 5. It does not have a mechanism for moving the carriage up and down in the vertical direction,
The light-emitting element inspection apparatus according to claim 1. A translucent member that divides the internal space of the elevating cylinder into a first space that continues to the internal space of the light receiver and a second space that continues to the opening;
The light-emitting element inspection apparatus according to claim 1. A through-hole connected to the second space is formed in the lifting cylinder,
An injector for injecting gas into the second space through the through hole;
The light-emitting element inspection apparatus according to claim 10. A carrier on which a light emitting element having a light emitting portion and a non-radiating portion is placed on the upper surface;
A light receiver that is disposed above the carrier, has an internal space, receives light emitted from the light emitting element to the internal space, and has an insertion port facing downward;
A bottomed lifting cylinder that is inserted into the insertion port of the light receiver and can be moved back and forth in the vertical direction, and an opening is formed at the bottom, and when the lifting cylinder is lowered, the edge of the opening is the edge of the light emitting element. A lifting cylinder in contact with the non-radiating part and in which the light emitting part of the light emitting element is located in the opening,
A probe that is in contact with a terminal of the light emitting element placed on the carrier and energizes the light emitting element;
Based on a detection signal from the light receiver, a characteristic measurement unit that measures a light emission characteristic of the light emitting element,
Based on the light emission characteristics of the light emitting element, a position determining unit that determines the accommodating position of the light emitting element from among a plurality of accommodating positions;
A classification operation unit for moving the light-emitting elements placed on the carrier to the determined accommodation position;
A light-emitting element inspection apparatus comprising:

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