CN104949752A - Light source illumination auxiliary test device - Google Patents

Abstract

The invention discloses a light source illuminance auxiliary test device, which includes a support assembly for supporting and fixing a light source, the support assembly includes a base, a telescopic rod and a workbench, the telescopic rod is fixed on the base, and can Up and down telescopic, the workbench is fixedly connected to the end of the telescopic rod away from the base, the workbench is used to place the light source, the light source includes a light-emitting surface; the projection surface is far away from the light source and parallel to the The light-emitting surface is used to project the light spot on the light-emitting surface; the infrared rangefinder is installed on the workbench and is used to test the distance from the light-emitting surface to the light spot; a laser pointer is installed on the workbench platform, and away from the infrared rangefinder, used to mark the geometric center of the spot. Realize the illuminance test of the geometric center of the light source, and the equidistant point illuminance test around the geometric center of the light source, so as to calculate the average illuminance of the light source, and achieve accurate, simple and reliable testing results.

Description

Light source illuminance auxiliary test device

technical field

The invention relates to the field of light source testing, in particular to an auxiliary light source illuminance testing device.

Background technique

For portable lamps, the size of the illuminance value and the uniformity of the light spot are an important indicator to measure the lighting quality of the lamp. The maximum value of illuminance, spot diameter, average illuminance and uniformity of spot illuminance.

The traditional process of testing illuminance is to place the luminaire on the table in a dark room to ensure that the background illuminance is less than 0.21ux; then use a tape measure or a tape measure to measure the distance between the luminaire and the wall. After the distance is adjusted, test the center of the luminaire Illuminance also needs to test the distance between the center of the lamp and the ground, but the bottom surface must be flat; then test the height of the lamp from the ground on the wall; then find out the distance between the center of the lamp and the vertical height between the center of the lamp and the ground. Mark the center point; after the center point is tested, light the lamp on the wall, and use an illuminance meter to test the maximum illuminance, center illuminance, and equidistant illuminance values on both sides of the center illuminance; then take the same distance from both sides of the center point Point test illuminance, and then calculate the average illuminance value.

All need two people to cooperate to be able to finish in this test process, and test efficiency is low like this, and test data is inaccurate.

Contents of the invention

The object of the present invention is to provide an auxiliary testing device for accurately testing the illuminance of a light source.

In order to solve the above technical problems, the present invention provides an auxiliary light source illuminance test device, which includes: a support assembly for supporting and fixing the light source, which includes a base, a telescopic rod and a workbench, and the telescopic rod is fixed to the base above, and can be stretched up and down, the workbench is fixedly connected to the end of the telescopic rod away from the base, and the workbench is used to place the light source, and the light source includes a light-emitting surface;

A projection surface, away from the light source and parallel to the light-emitting surface, for projecting a light spot on the light-emitting surface;

An infrared range finder, installed on the workbench, is used to test the distance from the light-emitting surface to the light spot;

A laser pointer, installed on the workbench and away from the infrared range finder, is used to mark the geometric center of the light spot.

Wherein, the laser pointer is slidably connected to the workbench, and the sliding direction is parallel to the light-emitting surface, and slides close to or away from the irradiation line of the geometric center of the light source. The laser pointer is located on the light-emitting side of the light-emitting surface, vertically The projection surface is illuminated.

Wherein, a slider is provided on the edge of the workbench, and the slider is fixedly connected to the laser pointer. The slider is provided with a chute extending in the vertical direction, and a bolt is inserted in the chute, and the bolt Screwed to the edge of the workbench.

Wherein, the light source illuminance auxiliary test device further includes a miniature laser pointer, and the miniature laser pointer is installed on the workbench for marking that the light spot is a little away from the base.

Wherein, a slide bar is slidably connected to the edge of the workbench, and the sliding direction of the slide bar is set to be the same as that of the laser pointer, and the end of the slide bar away from the base is fixedly connected to the miniature laser pointer.

Wherein, the light source illuminance auxiliary test device further includes a slide plate, the slide plate is slidably connected to the edge of the workbench, and the cross section of the slide plate is parallel to the light-emitting surface and slidably arranged in the vertical direction.

Wherein, the edge of the workbench is provided with bolt grooves extending in the vertical direction, screws are arranged in the bolt grooves, and the screws are fixedly connected to the slide plate.

Wherein, a hook is arranged on the slide, and a level tester is hung on the hook, and the level tester is used to test the angle between the light-emitting surface and the horizontal plane, and the angle between the projection surface and the horizontal plane.

Wherein, the workbench is provided with a light source holder, the light source holder is used to support the light source, the workbench is screwed with an adjustment screw, one end of the adjustment screw passes through the workbench surface, and is used to The adjusting screw is adjusted against the end of the light source away from the light-emitting surface to adjust the turning of the light-emitting surface relative to the projection surface.

Wherein, the projection surface is a wall.

In the light source illuminance auxiliary testing device of the present invention, the height of the light source from the bottom surface is adjusted through a telescopic rod; the distance between the light source and the projection surface is adjusted through an infrared tester; and the projection surface is parallel to the light emitting surface and the laser pointer Irradiate vertically to the projection surface to find the geometric center of the light spot. Realize the illuminance test of the geometric center of the light source, and the equidistant point illuminance test around the geometric center of the light source, so as to calculate the average illuminance of the light source, and achieve accurate, simple and reliable testing results.

Description of drawings

In order to illustrate the technical solution of the present invention more clearly, the accompanying drawings used in the implementation will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some implementations of the present invention. As far as the skilled person is concerned, other drawings can also be obtained based on these drawings on the premise of not paying creative work.

Fig. 1 is the schematic diagram of light source illuminance auxiliary test device;

FIG. 2 is a schematic diagram of the light source illuminance auxiliary testing device in FIG. 1 .

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention.

Please refer to FIG. 1 and FIG. 2 together. An auxiliary light source illuminance test device 100 provided by an embodiment of the present invention includes a support assembly 10 , a projection surface (not shown) and a test assembly 20 . The light source (not shown) is supported by the support assembly 10, and the height of the light source from the ground can be adjusted, so that the entire light spot of the light source is completely projected on the projection surface; and the test assembly 20 is used to include an infrared range finder 21, Realize the distance test to the light source to the projection surface, and use the test assembly 20 to include a laser pointer 22 to mark the geometric center of the light spot of the light source, and realize the illuminance test of the geometric center of the light source; and use the position of the geometric center of the light spot It can also test the illuminance of equidistant light points around the geometric center of the light spot, thereby realizing the illuminance auxiliary test of the light source and achieving simple and reliable results.

The support assembly 10 includes a base 11 , a telescoping rod 12 and a workbench 13 . The base 11 is a square plate, placed on the ground. The telescopic rod 12 is fixed on the base 11 , and can be stretched up and down in the vertical direction, so as to adjust the length of the telescopic rod 12 . The telescopic rod 12 is provided with a set screw 12a, and by locking the set screw 12a, the telescopic rod 12 can be fixed so that it will no longer expand and contract, so that the telescopic rod 12 can be adjusted to a preset length.

The workbench 13 is fixed on an end of the telescopic rod 12 away from the base 11 . The light source and the infrared rangefinder 21 are placed on the workbench 13 . Specifically, the workbench 13 is a square plate, and the other side of the table top of the workbench 13 is fixedly connected to the telescopic rod 12. As the telescopic rod 12 is adjusted to a preset length, the workbench 13 can Move up and down and adjust to preset heights. The infrared rangefinder 21 is fixedly connected to the workbench 13 , and a light source holder 131 is fixedly connected to a place close to the infrared rangefinder 21 on the workbench 13 .

The light source holder 131 is close to an edge of the workbench 13 , and the light source holder 131 is in the shape of a boss. In this embodiment, the light source holder 131 is provided with an arc recess 131 a on the top surface away from the workbench 13 , and the arc recess 131 a supports the light source. Certainly, in other implementation manners, the light source holder may also be provided with a clamp, and the light source holder clamps the light source.

The working platform 13 is provided with a leveling screw 132 away from the light source holder 131 , and the leveling screw 132 is used in cooperation with the light source holder 131 . Specifically, the workbench 13 is screwed to the leveling screw 132 on one side of the light source holder 131 . The length direction of the adjustment screw 132 is perpendicular to the table top of the workbench 13 , and one end of the adjustment screw 132 passes through the table top of the workbench 13 , and abuts against the end of the light source away from the light source holder 131 . A leveling plate 132a is welded against one end of the light source by the adjusting screw 132 . The leveling plate 132a abuts against the light source. Rotating the leveling screw 132 can move the leveling screw 132 up and down relative to the workbench 13, thereby driving the leveling plate 132a to move up and down, and then pushing one end of the light source to rotate around the light source holder 131, The effect of adjusting the angle between the geometric center radiation line of the light source and the horizontal plane is achieved. When the angle between the geometric center of the light source and the horizontal plane is equal to the angle between the light-emitting surface and the horizontal plane, the geometric center of the light source can be irradiated vertically to the projection surface, thereby achieving the illuminance of the light source. The accuracy of the test.

The light source is placed on the workbench 13 and radiates light to the projection surface. In this embodiment, the light source is a commonly used flashlight. Specifically, the light source includes a light-emitting surface (not shown). The light-emitting surface is circular, and the light-emitting surface emits irradiating light, thereby projecting light spots on the projection surface. Use an illuminance tester to take points on the light spot to test the illuminance of the light source. Since the illumination line of the geometric center of the light source is perpendicular to the light-emitting surface, the light-emitting surface is adjusted to be parallel to the projection surface, that is, the illumination line in the geometry of the light source is perpendicular to the projection surface, so that the light source is in the projection plane. A circular light spot is projected on the surface, so that it is convenient to test the illuminance of the geometric center of the light source and the illuminance of other points around the geometric center of the light source. Certainly, as mentioned in other implementation manners, the light source may also be any one of a light bulb, a fluorescent lamp or an LED lamp panel, and the light emitting surface may also be in any shape of a square, a triangle or a pentagon.

The infrared range finder 21 is fixed on the table of the workbench 13 and is located at one side of the light source. Specifically, the infrared emission direction of the infrared rangefinder 21 is set parallel to the irradiation direction of the light source, and at the same time, the infrared emission end of the infrared rangefinder 31 is flush with the light-emitting surface, so as to accurately measure the The distance from the light emitting surface of the light source to the projection surface, and the digital display module of the infrared rangefinder 21 can be used to directly read the distance value, which saves time and is convenient to use.

In this embodiment, the projection surface is a wall, which ensures that the projection surface is perpendicular to the horizontal plane, saves time for testing the angle between the projection surface and the horizontal plane, and further ensures the accuracy of the illuminance test of the light source. When the light source illuminates the projection surface, the projection surface projects a circular light spot of the light source. Of course, in other embodiments, the projection surface can also be one side of a rectangular plate. At this time, if the projection surface is not set in a vertical direction, it is necessary to test the angle between the projection surface and the horizontal plane to ensure The projection surface is parallel to the light exit surface; if the light exit surface of the light source is square, the projection surface can also project a square light spot.

The laser pointer 22 is installed on the workbench 13, away from the infrared range finder 21, and is used to mark the geometric center of the light spot. Specifically, the laser pointer 22 emits light extending in a straight line, and irradiates the projection surface vertically. The laser pointer 22 is located on the light-emitting side of the light-emitting surface, and when it is aligned with the geometric center of the light-emitting surface and illuminates the projection surface, it can mark the geometric center of the light spot. At the same time, the geometric center of the light-emitting surface is easier to find than the geometric center of the light spot, so that the laser pointer 22 can accurately mark the geometric center of the light spot. More specifically, the laser pointer 22 is slidably connected to the working platform 13, and can slide close to or away from the irradiation line of the geometric center of the light source along the direction parallel to the light-emitting surface, so as to realize that the laser pointer is far away from When the geometric center of the light source irradiates a line, the edge of the light spot can be marked, so as to measure the illuminance value of the edge of the light spot; at the same time, a plurality of equidistant distribution points between the geometric center of the light spot and the edge can be marked, according to the The average illuminance of the light spot can be calculated from the illuminance of the geometric center of the light spot, the illuminance of multiple equidistantly distributed points, and the edge illuminance.

In this embodiment, the laser pointer 22 is fixed on the slider 221 , and the slider 221 is slidably connected to the edge of the workbench 13 and arranged close to the light source holder 131 . Specifically, the workbench 13 is provided with bolts 222 near the edge of the light source holder 131, and the slider 221 is provided with a chute 221a corresponding to the passage of the bolt 222, and the chute 221a is vertically direction extension. In order to realize that the slider 221 drives the laser pointer 22 to slide close to or away from the geometric centerline of the light source in the vertical direction, so that the geometric center of the light spot can be marked, and the edge of the light spot is a little closer to the base . Of course, in other implementation manners, the laser pointer can also be fixed on the slide bar, the length direction of the slide bar extends in the horizontal direction, and slides through a rectangular block relative to the light source holder; or the The laser pointer is installed on the electric telescopic rod, one end of the electric telescopic rod is fixed on the working platform, and the other end is stretched and retracted relative to the light source along the vertical direction.

In this embodiment, the test assembly 20 also includes a miniature laser pointer 23, the miniature laser pointer 23 is installed on the workbench 13, away from the laser pointer 22, and is used to mark the light spot away from the base One point is to mark the highest point of the light spot relative to the bottom surface. Specifically, a slide bar 231 is slidably connected to the edge of the workbench 13 , and the slide bar 231 is set in the same sliding direction as the laser pointer 22 . That is, the length direction of the slide bar 231 extends along the vertical direction, and the slide bar 231 passes through a rectangular block 232 . The rectangular block 232 is arranged on the edge of the worktable 13 and is arranged opposite to the slide block 221 a. In order to realize that the miniature laser pointer 23 and the laser pointer 22 are in the same movement plane, they can cooperate with each other to respectively mark the highest point and the lowest point of the light spot relative to the ground, and then more accurately correct the geometric center of the light spot . Of course, in other embodiments, the miniature laser pointer can also be fixed on the slider, and the slider is slidably connected in the chute of the workbench; or the miniature laser pointer can also be installed on the screw Above, the length direction of the screw extends horizontally and is installed on the workbench. Rotating the screw can realize the reciprocating movement of the micro laser pointer along the length direction of the screw, and then mark the edge of the spot and the geometric center point.

In addition to measuring the distance from the light source to the projection surface and marking the geometric center of the light spot, the test assembly 20 also includes a level tester 24, which is used to test the light exit surface and The angle of the horizontal plane, and the angle of the projection plane and the horizontal plane. The level tester 24 is installed on the working platform 13 . Specifically, a bolt groove 241 is provided at the edge of the working platform 13 opposite to the slider 221 , and the bolt groove 241 extends along the vertical direction. The bolt groove 241 is slidably connected with a bolt 242 . A slide plate 243 is fixedly connected to the end of the bolt 242 away from the workbench 13, so as to realize the sliding arrangement of the slide plate 243 along the vertical direction. The cross section of the sliding plate 243 is parallel to the light emitting surface, so that when the length of the light source is exposed from the working platform, the sliding plate 243 can be slid close to the base 11 to avoid interference with the installation of the light source. In this embodiment, the side of the slide plate 243 away from the workbench is fixedly connected to the rectangular block 232. Of course, in other embodiments, the slide plate may not be provided, and the rectangle block is directly fixed on the workbench. edge.

Meanwhile, a hook (not shown) is arranged on the board 243 , and the spirit level is hung on the hook. When it is necessary to test the angle between the projection plane and the horizontal plane, and to test the angle between the light-emitting surface and the horizontal plane, the level 24 is removed from the hook; when measuring the angle between the projection plane and the horizontal plane, When the included angle between the light-emitting surface and the horizontal plane is the same, it is ensured that the projection surface is parallel to the light-emitting surface, and the level 24 is hung on a hook so that it can be used at any time and save time; if the projection surface is tested If it is not parallel to the light-emitting surface, the leveling screw 132 needs to be adjusted until the light-emitting surface is parallel to the projection surface. In this embodiment, the level is a PRO360 level, of course, in other embodiments, the level can also be a laser level or a bubble level. Of course, the level can also be directly suspended from the edge of the workbench.

In the light source illuminance auxiliary testing device of the present invention, the height of the light source from the bottom surface is adjusted through a telescopic rod; the distance between the light source and the projection surface is adjusted through an infrared tester; and the projection surface is parallel to the light emitting surface and the laser pointer Irradiate vertically to the projection surface to find the geometric center of the light spot. Realize the illuminance test of the geometric center of the light source, and the equidistant point illuminance test around the geometric center of the light source, so as to calculate the average illuminance of the light source, and achieve accurate, simple and reliable testing results.

The above description is a preferred embodiment of the present invention, and it should be pointed out that for those skilled in the art, without departing from the principle of the present invention, some improvements and modifications can also be made, and these improvements and modifications are also considered Be the protection scope of the present invention.

Claims (10)

1. a light illumination auxiliary test unit, is characterized in that, it comprises:

Supporting component, for supporting and fixed light source, it comprises base, expansion link and worktable, described expansion link is fixed on described base, and can stretch up and down, described worktable is fixedly connected with described expansion link away from described base one end, and described table surface is for placing described light source, and described light source comprises exiting surface;

Projecting plane, away from described light source, is parallel to described exiting surface, for the hot spot of the described exiting surface that projects out;

Infrared ambulator, is installed on described worktable, for testing the distance of described exiting surface to described hot spot;

Laser designator, is installed on described worktable, and away from described infrared ambulator, for marking described hot spot geometric center.

2. light illumination auxiliary test unit according to claim 1, it is characterized in that, described laser designator is slidably connected described worktable, and the parallel described exiting surface of glide direction, do near or slide away from described light source geometric center illuminated line, described laser designator is positioned at described exiting surface emission side, projecting plane described in vertical irradiation.

3. light illumination auxiliary test unit according to claim 2, it is characterized in that, described worktable edge is provided with slide block, described slide block is fixedly connected with described laser designator, described slide block is provided with the chute that vertical direction extends, inserting bolt in described chute, described bolt is bolted in described worktable edge.

4. light illumination auxiliary test unit according to claim 2, is characterized in that, described light illumination auxiliary test unit also comprises miniature laser pen, and described miniature laser pen is installed on described worktable, for marking described hot spot away from described base a bit.

5. light illumination auxiliary test unit according to claim 4, it is characterized in that, described worktable boundary slip connects a slide bar, described sliding bar direction and the identical setting of described laser designator glide direction, described slide bar is fixedly connected with described miniature laser pen away from described base one end.

6. light illumination auxiliary test unit according to claim 1, it is characterized in that, described light illumination auxiliary test unit also comprises slide plate, and described slide plate slides is connected to described worktable edge, and described slide plate xsect is parallel to described exiting surface and setting of vertically sliding.

7. light illumination auxiliary test unit according to claim 6, is characterized in that, described worktable edge is provided with the bolt slot vertically extended, and arranges screw in described bolt slot, and described screw is fixedly connected with described slide plate.

8. light illumination auxiliary test unit according to claim 7, it is characterized in that, described slide plate arranges hook, and described hook hangs with horizontal checkout instrument, described horizontal checkout instrument is for testing the angle of described exiting surface and surface level, and the angle of described projecting plane and surface level.

9. light illumination auxiliary test unit according to claim 8, it is characterized in that, described worktable is provided with light source deck, described light source deck is used for light source described in support, described worktable is bolted with set screw, described set screw one end through described table surface, and for against described light source away from exiting surface one end, regulate described set screw, to regulate the relatively described projecting plane upset of described exiting surface.

10. light illumination auxiliary test unit according to claim 1, is characterized in that, described projecting plane is metope.