CN214748772U

CN214748772U - Dark box type luminous flux measuring instrument

Info

Publication number: CN214748772U
Application number: CN202122312986.4U
Authority: CN
Inventors: 杨武; 董磊
Original assignee: Hangzhou Yiming Technology Co ltd
Current assignee: Hangzhou Yiming Technology Co ltd
Priority date: 2021-09-24
Filing date: 2021-09-24
Publication date: 2021-11-16
Anticipated expiration: 2031-09-24

Abstract

The utility model discloses a camera bellows formula luminous flux measuring apparatu for the luminous flux of lamps and lanterns is measured to quick accuracy, include: the device comprises a camera bellows and detectors arranged inside the camera bellows, wherein mounting holes are formed in the camera bellows, cover plates are arranged on the mounting holes, lamp fixtures used for mounting a lamp to be tested are arranged on the cover plates, the detectors are provided with a plurality of, and the distance between each detector and the light source center of the lamp to be tested is the same. The beneficial effects of the utility model reside in that: the lamp to be tested is mounted on the lamp fixture on the cover plate, then the cover plate is covered, the rapid mounting of the lamp to be tested can be completed, the mounting and testing efficiency of the lamp is improved, the illumination of the lamp space in all directions is completed through the detectors, the total luminous flux of the lamp is obtained through the illumination space integration method, the testing accuracy is improved, and meanwhile the testing speed is further improved.

Description

Dark box type luminous flux measuring instrument

Technical Field

The utility model relates to an optical measurement device especially relates to a camera bellows formula luminous flux measuring apparatu.

Background

The luminous flux of the light source is measured by a comparison method through a luminous flux integrating sphere, the method is quick in test and high in test precision of the traditional light source, and with the development of the LED light source, more and more LED large-area panel lamps are too far away from the shape of a calibration light source, so that the result error of the measurement of the luminous flux comparison method is large. The other method is to use a distribution photometer to measure the luminous flux of the lamp, and the precision of the distribution photometer for measuring the luminous flux is not influenced by the shape and the size of a light source, but the distribution photometer has high manufacturing cost, low testing speed and larger requirement on a testing production place.

The utility model discloses a grant utility model patent of publication No. CN208060015U discloses a photometer device with camera bellows, including camera bellows, setting up davit in the camera bellows, setting up the photometer in camera bellows one end, be provided with a lift platform that is used for placing the light source through a elevating gear on the davit. The measurement of the photometer is not influenced by stray light by configuring the dark box, and although the measurement precision is improved, two problems exist, one is that only one test probe is adopted to carry out illumination test at a single angle, and the luminous flux of the tested lamp cannot be obtained; meanwhile, the lamp mounting position is located inside the camera bellows, and the lamp needs to be installed deep into the camera bellows during use, so that the installation and debugging are inconvenient.

SUMMERY OF THE UTILITY MODEL

In order to overcome the above-mentioned defect among the prior art, the utility model aims to provide a can measure the solution of the luminous flux of lamps and lanterns fast and accurately.

In view of this, the utility model provides a camera bellows formula luminous flux measuring apparatu for measure the luminous flux of lamps and lanterns, include: the device comprises a camera bellows and detectors arranged inside the camera bellows, wherein mounting holes are formed in the camera bellows, cover plates are arranged on the mounting holes, lamp fixtures used for mounting a lamp to be tested are arranged on the cover plates, the detectors are provided with a plurality of, and the distance between each detector and the light source center of the lamp to be tested is the same.

Furthermore, the detectors are uniformly distributed on an arc which takes the center of the light source of the lamp to be detected as the center of a circle and has the same radius.

Further, the detector is installed on a circular arc-shaped support, and the circular arc-shaped support is fixed with the camera bellows through an installation supporting leg.

Further, the lamp fixture comprises a mounting seat and a lamp clamping portion arranged on the mounting seat, the mounting seat comprises a bottom plate and mounting plates arranged on two sides of the bottom plate, a sliding rod is arranged between the mounting plates, and the sliding rod is connected with the lamp clamping portion in a sliding mode.

Further, the lamp clamping part comprises a sliding block and a plurality of pressing plates arranged on the sliding block, a connecting rod is arranged between each pressing plate and the corresponding sliding block, each pressing plate is fixedly connected to the top of the corresponding connecting rod, and each pressing plate is in threaded connection with the corresponding connecting rod.

Further, the slide bar is established to first slide bar and second slide bar parallel to each other, and the sliding block includes first sliding block and the second sliding block of symmetric distribution in the lamps and lanterns anchor clamps both sides, all is equipped with first link and the second link of connecting first slide bar and second slide bar respectively on first sliding block and the second sliding block.

Further, a linear bearing used for enabling the sliding block and the first sliding rod to form sliding connection is arranged between the first connecting end of the sliding block and the first sliding rod.

Furthermore, a shaft hole which is connected with the second sliding rod in a sliding mode is formed in the second connecting end of the sliding block, a tightening screw rod is further arranged on the second connecting end and is in threaded connection with the second connecting end of the sliding block, a handle is arranged at one end of the tightening screw rod, and the other end of the tightening screw rod penetrates through the shaft hole.

Further, a rotating mechanism is arranged between the cover plate and the lamp fixture and comprises a driving motor and a mounting seat, the mounting seat is fixedly connected to an output shaft of the driving motor, and the mounting seat is fixedly connected with the lamp fixture.

Furthermore, a wiring terminal for supplying power to the lamp to be tested is arranged on the mounting seat.

Compared with the prior art, the beneficial effects of the utility model reside in that: the lamp to be tested is mounted on the lamp fixture on the cover plate, then the cover plate is covered, the rapid mounting of the lamp to be tested can be completed, the mounting and testing efficiency of the lamp is improved, the testing of the luminous flux of the lamp is completed through the plurality of detectors, the testing speed is further improved while the testing accuracy is improved, and the cost of high-precision luminous flux measurement is greatly reduced.

Drawings

Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention.

Fig. 2 is an enlarged schematic structural view of a cover plate mounting surface according to embodiment 1 of the present invention.

Fig. 3 is a schematic view of a lamp fixture structure according to embodiment 1 of the present invention.

Fig. 4 is a schematic structural diagram of embodiment 2 of the present invention.

Fig. 5 is an enlarged schematic structural view of the cover plate of embodiment 2 of the present invention.

Description of reference numerals: 10. a dark box; 20. a detector; 21. mounting a bracket; 22. mounting support legs; 30. a cover plate; 40. a lamp fixture; 41. a base plate; 42. mounting a plate; 43. a second slide bar; 44. a first slide bar; 45. a slider; 46. pressing a plate; 47. a linear bearing; 48. tightening the screw rod; 49. a shaft hole; 50. a rotation mechanism; 51. a drive motor; 52. a mounting seat; 53. and (4) binding posts.

Detailed Description

In order to enable a reader to better understand the design principle of the present invention, the following specific embodiments are provided to enable the reader to understand visually the present invention relates to a structure, a structural composition, an action principle and a technical effect. It should be noted that the following embodiments are not intended to limit the technical solution of the present invention, and those skilled in the art can analyze and understand the embodiments and make a series of modifications and equivalent substitutions for the technical solution provided by the present invention in combination with the prior knowledge, and the new technical solution obtained by the modifications and equivalent substitutions is also encompassed by the present invention.

Example 1

As shown in fig. 1-2, a dark box type luminous flux measuring instrument for measuring luminous flux of a lamp includes: the device comprises a camera bellows 10 and a detector 20 arranged in the camera bellows 10, wherein a mounting hole 31 is formed in the camera bellows 10, a cover plate 30 is arranged on the mounting hole 31, and a lamp clamp 40 for mounting a lamp to be tested is arranged on the cover plate 30. Firstly, the lamp to be tested is mounted on the lamp clamp 40 on the cover plate 30, and then the cover plate 30 on which the lamp to be tested is mounted is covered on the mounting hole 31, so that the rapid mounting of the lamp to be tested is completed. As an embodiment, a hinge connection may be used between one side of the cover 30 and the camera bellows 10 to facilitate the opening and closing of the cover 30.

As shown in fig. 1, a plurality of detectors 20 are provided, and the distance between each detector 20 and the center of the light source of the lamp to be measured is the same, and the detectors 20 are uniformly distributed on an arc with the center of the light source of the lamp to be measured as the center of the circle and with equal radius. In order to ensure that the detectors 20 can be uniformly distributed on the circular arc with the center of the light source of the lamp to be measured as the center of the circle, in this embodiment, the detectors 20 are uniformly distributed and mounted on a circular arc support 21, the position of the center of the circular arc support 21 corresponds to the position of the center of the light source of the lamp to be measured, and the circular arc support 21 is fixed with the dark box 10 through a mounting support leg 22. According to different test requirements, the arrangement interval and the total number of the detectors 20 can be adjusted correspondingly, in practical use, the central angle degree corresponding to the arc of the arc-shaped support is usually 5-30 degrees as the arrangement interval, the arc length of the arc-shaped support corresponding to the central angle is 90 degrees, fig. 1 shows that the central angle corresponding to the arc is 5 degrees as the arrangement interval, and in total, 19 detectors need to be installed on the arc-shaped support 21, the detectors measure the illuminance of the lamp to be tested at different angles, and the luminous flux of the lamp to be tested can be obtained through calculation.

As shown in fig. 3, as an embodiment, the lamp fixture 40 includes a mounting base and a lamp clamping portion disposed on the mounting base, the mounting base includes a bottom plate 41 and two mounting plates 42 disposed on left and right sides of the bottom plate 41, a sliding rod is disposed between the two mounting plates 42, the sliding rod is slidably connected to the lamp clamping portion, and specifically, the lamp clamping portion can slide on the sliding rod. The lamps and lanterns clamping part includes that the left and right sides is the symmetry and sets up two sliding blocks 45 and installs a plurality of clamp plates 46 on sliding block 45, is provided with the connecting rod between clamp plate 46 and the sliding block 45, and clamp plate 45 fixed connection is in the connecting rod top, clamp plate 45 and connecting rod threaded connection. The bottom of the connecting rod is also provided with a knob, the relative position relationship between the pressing plate 46 and the sliding block 45 can be adjusted by rotating the knob, namely, the pressing plate 46 can move back and forth relative to the sliding block 45, so that the aim of pressing or loosening the lamp to be detected is fulfilled. The slide bars are set as a first slide bar 44 and a second slide bar 43 which are parallel to each other, the slide blocks 45 comprise a first slide block and a second slide block which are symmetrically distributed on two sides of the lamp fixture, and a first connecting end and a second connecting end which are respectively connected with the first slide bar and the second slide bar are respectively arranged on the first slide block and the second slide block. A linear bearing 47 for slidably connecting the sliding block 45 and the first slide bar 44 is disposed between the first connecting end of the sliding block 45 and the first slide bar 44. The second connecting end of the sliding block 45 is provided with a shaft hole 49 which forms sliding connection with the second sliding rod 43, the second connecting end is further provided with a tightening screw 48, the tightening screw 48 is in threaded connection with the second connecting end of the sliding block 45, one end of the tightening screw 48 is provided with a handle, and the other end of the tightening screw is arranged in the shaft hole 49 in a penetrating manner.

When in use, firstly, the fastening screw 48 is unscrewed along the counterclockwise direction to make the tail end of the fastening screw 48 be screwed out of the shaft hole 49, then the sliding blocks 45 slide towards the two sides and the lamp to be tested is installed between the two sliding blocks 45, meanwhile, the lamp to be tested can be installed at the central position of the lamp fixture 40 through the measuring tool to ensure that the light source center of the lamp corresponds to the circle center position of the arc-shaped bracket, and the lamp to be tested is pressed tightly through the sliding blocks 45, finally, the fastening screw 48 is screwed along the clockwise direction to make the tail end of the fastening screw 48 be screwed into the shaft hole 49 and tightly connected with the first sliding rod 43, so that the relative positions between the sliding blocks 45 and the sliding rods are fixed, the lamp to be tested is further clamped through adjusting the relative positions between the pressing plate 46 and the moving block 45, so that the lamp to be tested is firmly fixed on the lamp fixture without shaking or falling off, the upper cover plate 30 is covered after the installation is completed, the lamp to be tested is placed in the station to be tested, and the detector 20 is started to test the lamp to be tested. The embodiment is mainly used for measuring symmetrical lamps such as flat lamps, and the light intensity of the symmetrical lamps is correspondingly distributed symmetrically, so that the illuminance of each point of the light source on the spherical surface corresponding to the circular arc support 21 can be obtained only by measuring the illuminance of each point on the circular arc support 21 where the detector 20 is located, and further the luminous flux is obtained.

Example 2

As another embodiment, the same portions of this example as those of example 1 are not described in detail, and this example is different from example 1 in that: as shown in fig. 4-5, a rotating mechanism 50 is further disposed between the cover plate 30 and the lamp fixture 40, the rotating mechanism 50 includes a driving motor 51 and a mounting seat 52, the mounting seat 52 is fixedly connected to an output shaft of the driving motor 51, the mounting seat 52 is fixedly connected to the lamp fixture 40, and a terminal 53 for supplying power to the lamp to be tested is disposed on the mounting seat 52. The implementation manner of this embodiment is mainly used for measuring the lamp with the asymmetric structure, in order to obtain accurate illuminance data when measuring the lamp with the asymmetric structure, the lamp or the detector 20 needs to be horizontally rotated to measure illuminance data of each rotation angle, and it is more convenient to rotate the lamp to be measured relative to the rotation detector 20 in operation, so this embodiment implements rotation of the lamp by providing the rotation mechanism between the lamp fixture 40 and the cover plate 30.

When the device is used, firstly, a lamp to be tested is installed on the lamp fixture 40, the lamp to be tested is connected with the wiring terminal through a power line to be electrified, then the cover plate 30 is covered, the lamp enters a testing station, the output shaft of the driving motor 51 is controlled to rotate through the control switch, the driving motor 51 drives the lamp to be tested to rotate along the horizontal plane, the detector 20 records data in the rotation process of the lamp to be tested, and after the lamp to be tested rotates for a circle, the data obtained by the detector 20 can form the illuminance of the lamp to be tested in all directions, so that the luminous flux of the lamp to be tested is obtained.

To sum up, the utility model discloses a install the lamps and lanterns of being surveyed on the lamps and lanterns anchor clamps that are located the apron, then cover the apron and can accomplish the quick installation of lamps and lanterns of being surveyed, accelerated the installation and the efficiency of software testing of lamps and lanterns, and accomplish the test of lamps and lanterns space illumination distribution fast through a plurality of detectors and thus obtain lamps and lanterns luminous flux, further improved test speed when improving test accuracy; when the asymmetric lamp is measured, the rotation mechanism is used for enabling the lamp to be measured to rotate in the horizontal direction to obtain a more accurate luminous flux measurement result.

In the claims, the word "comprising" does not exclude other elements or steps; the word "a" or "an" does not exclude a plurality. Use of ordinal terms such as "first," "second," etc., in the claims to modify a claim element does not by itself connote any priority, order, or temporal order of execution of one claim element over another, but are used merely for distinguishing one claim element from another. Although certain features may be described in different dependent claims, this does not imply that these features cannot be used in combination. Various aspects of the present invention may be used alone, in combination, or in a variety of arrangements not specifically discussed in the embodiments described in the foregoing and is therefore not limited in its application to the details and arrangement of components set forth in the foregoing description or illustrated in the drawings. For example, aspects described in one embodiment may be combined in any manner with aspects described in other embodiments. The steps, functions or features recited in a plurality of modules or units may be performed or satisfied by one module or one unit. The steps of the methods disclosed herein are not limited to being performed in any particular order, as some or all of the steps may be performed in other orders. Any reference signs in the claims shall not be construed as limiting the scope of the claims.

While the invention has been described by way of illustration and example, such description and illustration should be considered illustrative or exemplary and not restrictive. Those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims.

Claims

1. A dark box luminous flux measuring instrument for measuring luminous flux of a lamp, comprising: the device comprises a camera bellows and detectors arranged inside the camera bellows, and is characterized in that mounting holes are formed in the camera bellows, cover plates are arranged on the mounting holes, lamp fixtures used for mounting a lamp to be tested are arranged on the cover plates, the detectors are provided with a plurality of, and the distance between each detector and the light source center of the lamp to be tested is the same.

2. The darkbox type luminous flux measuring instrument according to claim 1, wherein the detectors are uniformly distributed on an arc of a circle with a center of the light source of the lamp to be measured and equal radius.

3. A camera-type luminous flux measuring instrument according to claim 2, wherein the detector is mounted on a circular arc-shaped support, and the circular arc-shaped support is fixed to the camera through a mounting leg.

4. The camera-type luminous flux measuring instrument according to claim 1, wherein the lamp clamp comprises a mounting base and a lamp clamping portion disposed on the mounting base, the mounting base comprises a bottom plate and mounting plates disposed on both sides of the bottom plate, a slide bar is disposed between the mounting plates, and the slide bar is slidably connected to the lamp clamping portion.

5. The camera-embedded luminous flux measuring instrument according to claim 4, wherein the lamp-holding portion comprises a sliding block and a plurality of pressing plates mounted on the sliding block, a connecting rod is disposed between the pressing plates and the sliding block, the pressing plates are fixedly connected to the top of the connecting rod, and the pressing plates are in threaded connection with the connecting rod.

6. The darkbox type luminous flux measuring instrument according to claim 5, wherein the slide bars are arranged as a first slide bar and a second slide bar which are parallel to each other, the slide bars comprise a first slide bar and a second slide bar which are symmetrically distributed at two sides of the lamp fixture, and the first slide bar and the second slide bar are respectively provided with a first connecting end and a second connecting end which are respectively connected with the first slide bar and the second slide bar.

7. A dark box type luminous flux measuring instrument as claimed in claim 6, wherein a linear bearing for slidably connecting the slide block and the first slide rod is provided between the first connecting end of the slide block and the first slide rod.

8. The dark box type luminous flux measuring instrument according to claim 6, wherein the second connecting end of the sliding block is provided with a shaft hole for forming a sliding connection with the second sliding rod, the second connecting end is further provided with a tightening screw rod, the tightening screw rod is in threaded connection with the second connecting end of the sliding block, one end of the tightening screw rod is provided with a handle, and the other end of the tightening screw rod is inserted into the shaft hole.

9. The camera bellows type luminous flux measuring instrument according to claim 1, wherein a rotation mechanism is further provided between the cover plate and the lamp fixture, the rotation mechanism includes a driving motor and a mounting base, the mounting base is fixedly connected to an output shaft of the driving motor, and the mounting base is fixedly connected to the lamp fixture.

10. A dark box type luminous flux measuring instrument according to claim 9, wherein a terminal for supplying power to a lamp to be measured is provided on the mount base.