CN207540667U - A kind of test system of hot spot light distribution - Google Patents
A kind of test system of hot spot light distribution Download PDFInfo
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- CN207540667U CN207540667U CN201721425545.2U CN201721425545U CN207540667U CN 207540667 U CN207540667 U CN 207540667U CN 201721425545 U CN201721425545 U CN 201721425545U CN 207540667 U CN207540667 U CN 207540667U
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Abstract
The utility model provides a kind of test system of hot spot light distribution, it includes testing jig and computer, the both ends of the testing jig are respectively equipped with product placement rack and camera rack, the middle part of the testing jig is equipped with imaging plate, light source product to be measured is placed on product placement rack, camera is placed on camera rack, and the imaging plate is located on the vertical plane of light source product to be measured and camera line；The imaging plate is equipped with scale towards the side of camera；The light emitting of the light source product transmitting to be measured is imaged on imaging plate, and the camera obtains the image on imaging plate, and is connect with computer, and the information of the imaging analysis system software acquisition camera of computer is analyzed.The required hardware of the technical solution of the utility model is less, and volume and area are small shared by test system, and test system can move, and need not be calibrated after moving, convenient and efficient.
Description
Technical field
The utility model belongs to special lighting technical field more particularly to a kind of test system of hot spot light distribution.
Background technology
At present, the method and apparatus for being used for testing light distribution on the market are mainly distributed photometer, the principle of test
It is to place optical inductor in the luminous light path of light source or lamps and lanterns, luminous due to light source is dispersion, so to fix sense
Answering device rotation light source, either fixed light source rotation sensor tests out the light intensity of light source or lamps and lanterns in each solid angle, so
The curve of light distribution is depicted by software afterwards, what is obtained is light distribution, can not directly test out the brightness value in some region.
In addition, this test method needs to accurately control very much the control device of rotational angle, instrument takes up a large area, for example tests road
The distributed photometer device length of lamp is up to 6 to 10m, and the manufacture cost of equipment is very high, inconvenient to use, maintenance cost
Also it is very high.This device can not be used for testing the circular light spot that hot spot only has 160mmx80mm or diameter only has 200mm simultaneously
On be accurate to the other Illumination Distribution of grade.Commonly the photoinduction head diameter of illumination photometer is from 10mm-20mm etc., measurement
The average illumination being incident upon on entire optical inductor, the brightness value that can not be also accurate in the size of millimeter.It is needed when test
Light optical inductor is moved manually, and control accuracy and accuracy of reading are affected by human factors very greatly, can only be used as very rough
Reference, can not accurately measure in advance.
Utility model content
For more than technical problem, the utility model discloses a kind of test systems of hot spot light distribution.
In this regard, the technical solution adopted in the utility model is：
A kind of test system of hot spot light distribution, including testing jig and computer, the both ends of the testing jig are set respectively
There are product placement rack and camera rack, the middle part of the testing jig is equipped with imaging plate, and light source product to be measured is placed on product and puts
It puts on frame, camera is placed on camera rack, and the imaging plate is located on the vertical plane of light source product to be measured and camera line；
The imaging plate is equipped with scale towards the side of camera；The light emitting of the light source product to be measured transmitting carried out on imaging plate into
Picture, the camera obtains the image on imaging plate, and is connect with computer, and the imaging analysis system software of computer obtains camera
Information analyzed.
Using this technical solution, first, hot spot Luminance Distribution of the light source product to be measured at distance L is obtained by computer
And dimension information；It can be obtained between the size on face at light source product L to be measured and the pixel of camera shooting by scale
Respective function relationship.Wherein, the L is the distance of light source product range Imaging plate to be measured.Adjustment illumination benchmark, obtains away from light
The functional relation of illumination and the gray scale of camera shooting on the distance L of source；By illumination derived above and gray scale and size with
The respective function relationship of pixel obtains the illumination on each pixel of the imaging facula on the face of camera shooting distance light source L
And the size positions information of each point.
As the technical solution of the utility model, the light of the light source product to be measured placed on product placement rack transmitting
Central axes and the central axes of camera rack overlap.
As the technical solution of the utility model, the distance of the center of the scale and the axis of camera<1 centimetre.
As the technical solution of the utility model, in the vertical of the axis vertical direction distance L that light source product to be measured is emitted
Plane is equipped with optical inductor；The optical inductor is connect with computer；Wherein, the distance L with it is to be measured on product placement rack
The distance of light source product range Imaging plate is equal.
As the technical solution of the utility model, the optical inductor is located on imaging plate.
As the technical solution of the utility model, the distance between the product placement rack and imaging plate are 0.5-1m.It is excellent
Choosing, the distance between the product placement rack and imaging plate are 0.7mm.
As the technical solution of the utility model, the imaging plate is translucent imaging plate.
As the technical solution of the utility model, the imaging plate is translucent acrylic board.
Compared with prior art, the beneficial effects of the utility model are：
First, using the technical solution of the utility model, without rotating light source or light sensation probe, and measure as needed
The illumination being accurate on the other point of grade, reading is automation in entire test process, is not influenced by artificial manual factor,
The reliability of test value is very high.
Second, the required hardware of test method of the utility model is less, and cost is more cheap；And test system institute
It accounts for volume and area is small, a whole set of test system can move at any time, need not be calibrated after moving, convenient and efficient.The utility model
Test system and test method are not only used in medical illumination field, can also be used in other industrial lightings and need test light
The high testing field of the small illumination of spot.
Description of the drawings
Fig. 1 is a kind of structure diagram of the test system of hot spot light distribution of the utility model.
Fig. 2 is a kind of principle schematic of the test system of hot spot light distribution of the utility model.
Fig. 3 is that the another side that the light source product to be measured of the utility model is irradiated to imaging plate on imaging plate light source to be measured occurs
The speck figure of product irradiation.
The adjustment spot size and schematic diagram during camera pixel relationship that Fig. 4 is the utility model.
Fig. 5 is a kind of schematic diagram of modes of emplacement of scale of the utility model.
Fig. 6 is the schematic diagram of the scale another kind modes of emplacement of the utility model.
Schematic diagram when Fig. 7 is the adjustment illumination benchmark of the utility model.
Fig. 8 is the photograph on each pixel of the imaging facula on the face of the camera shooting distance light source L of the utility model
The schematic diagram of the size positions information of degree and each point.
Reference numeral includes：1- testing jigs, 2- product placement racks, 3- camera racks, the translucent imaging plates of 4-, 5- are to be measured
Light source product, 6- cameras, 7- scales, 8- computers, 9- optical inductors.
Specific embodiment
The preferably embodiment of the utility model is described in further detail below.
Embodiment 1
As depicted in figs. 1 and 2, a kind of test system of hot spot light distribution, including testing jig 1 and computer 8, the survey
The both ends of examination frame 1 are respectively equipped with product placement rack 2 and camera rack 3, and the middle part of the testing jig 1 is equipped with translucent imaging plate
4, light source product 5 to be measured is placed on product placement rack 2, and camera 6 is placed on 6 rack 3 of camera, the translucent imaging plate
4 are located on the vertical plane of 6 line of light source product 5 to be measured and camera；The light emitting that the light source product to be measured 5 emits is translucent
It is imaged on imaging plate 4；The camera 6 obtains the image on translucent imaging plate 4, and is connect with computer 8, computer 8
Image analysis system obtain camera 6 information analyzed.The light source product to be measured 5 placed on the product placement rack 2 is sent out
The central axes of 6 rack 3 of central axes and camera for the light penetrated overlap.
As shown in Fig. 4 ~ Fig. 6, the translucent imaging plate 4 is equipped with scale 7 towards the side of camera 6, in the scale 7
The distance of the heart and the axis of camera 6<1 centimetre.The distance between the product placement rack 2 and translucent imaging plate 4 are 0.5-1m,
It is further preferred that it is 0.7m that the distance between the product placement rack 2 and translucent imaging plate 4, which are L,.The translucent imaging
Plate 4 is equipped with optical inductor 9, in this way so that the distance of 9 distance product of optical inductor is projected to the product that camera measures
Distance on translucent imaging plate 4 is identical.The translucent imaging plate 4 is translucent acrylic board.
It uses following steps to be tested：
As depicted in figs. 1 and 2, the light that light source product 5 to be measured is sent out is mapped on translucent imaging plate 4 by step S1, described
There is the speck that light source product 5 to be measured irradiates in the another side of translucent imaging plate 4, as shown in figure 3, in translucent imaging plate 4
Camera 6 is placed relative to the opposite side of light source product 5 to be measured, camera 6 is taken pictures speck, by the Image analysis system of computer 8,
Calculate hot spot Luminance Distribution and dimension information of the light source product 5 to be measured at distance L；Wherein, the L for light source product to be measured away from
With a distance from imaging plate, the ranging from 0.5-1m of the L.
Step S2 places scale 7, as shown in figure 4, obtaining treating in distance in the one side of translucent imaging plate 4 towards camera 6
The correspondence between the pixel that the scale 7 on the vertical plane at light source product 5L and camera 6 are shot is surveyed, so as to adjustment and is obtained
Relationship between 6 pixel of spot size and camera；As shown in Figure 5 and Figure 6, scale 7 is placed with two ways, is laterally and vertical
To；It adjustment and obtains the relationship of spot size and 6 pixel of camera in the step and includes following sub-step：
Sub-step S201, on the vertical plane apart from light source product 5L to be measured place scale 7, while the center of scale 7 with
The distance of the axis of camera 6<1 centimetre；
Sub-step S202 adjusts 6 aperture of camera and photographed clearly ruler scale；The figure of shooting level and vertical both direction
Piece；The pixel number contained in 7 10 cm range of scale by the calculating of 6 Survey Software of camera；It obtains apart from light source to be measured
Respective function relationship between the pixel that size and camera 6 at product 5L on face are shot.
Step S3, as shown in fig. 7, adjustment illumination benchmark, obtains the ash shot away from the illumination on light source distance L and camera 6
The functional relation of degree；Wherein, adjustment illumination benchmark includes following sub-step：
The optical inductor 9 of illumination photometer is placed in the plane of the axis vertical direction distance L of light source product 5 to be measured outgoing,
Test maximal illumination of the light source product 5 to be measured in alignment surface；By setting hot spot that 8 software of computer shoots camera 6
Integration maximum value of the gray scale on 9 area of optical inductor corresponds to maximum of the light source product to be measured 5 tested front in alignment surface
Illumination obtains the functional relation of gray scale shot away from the illumination on light source distance L and camera 6.
Step S4 by illumination derived above and gray scale and the respective function relationship of size and pixel, obtains camera 6
The size positions information of illumination and each point on each pixel of imaging facula on the face of shooting distance light source L, such as
Shown in Fig. 8.
The above content is combine specific preferred embodiment further detailed description of the utility model, it is impossible to
Assert that the specific implementation of the utility model is confined to these explanations.For the ordinary skill of the utility model technical field
For personnel, without departing from the concept of the premise utility, several simple deduction or replace can also be made, should all be regarded
To belong to the scope of protection of the utility model.
Claims (8)
1. a kind of test system of hot spot light distribution, it is characterised in that：It includes testing jig and computer, and the two of the testing jig
End is respectively equipped with product placement rack and camera rack, and the middle part of the testing jig is equipped with imaging plate, and light source product to be measured is placed
On product placement rack, camera is placed on camera rack, and the imaging plate is located at light source product to be measured and camera line
On vertical plane；The imaging plate is equipped with scale towards the side of camera；The light emitting of the light source product transmitting to be measured is being imaged
It is imaged on plate, the camera obtains the image on imaging plate, and is connect with computer, and the Image analysis system of computer is soft
The information that part obtains camera is analyzed.
2. the test system of hot spot light distribution according to claim 1, it is characterised in that：It is placed on the product placement rack
Light source product to be measured transmitting light central axes and camera rack central axes overlap.
3. the test system of hot spot light distribution according to claim 1, it is characterised in that：The center of the scale and camera
Axis distance<1 centimetre.
4. the test system of hot spot light distribution according to claim 3, it is characterised in that：In light source product to be measured outgoing
The perpendicular of axis vertical direction distance L is equipped with optical inductor, and the optical inductor is connect with computer；Wherein, it is described
Distance L is equal with the distance of light source product range Imaging plate to be measured on product placement rack.
5. the test system of hot spot light distribution according to claim 4, it is characterised in that：The optical inductor is located at imaging
On plate.
6. the test system of the hot spot light distribution according to claim 1 ~ 5 any one, it is characterised in that：The product is put
The distance between frame and imaging plate are put as 0.5-1m.
7. the test system of hot spot light distribution according to claim 6, it is characterised in that：The imaging plate for it is translucent into
As plate.
8. the test system of hot spot light distribution according to claim 7, it is characterised in that：The imaging plate is translucent Asia
Gram force plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721425545.2U CN207540667U (en) | 2017-10-31 | 2017-10-31 | A kind of test system of hot spot light distribution |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721425545.2U CN207540667U (en) | 2017-10-31 | 2017-10-31 | A kind of test system of hot spot light distribution |
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| CN207540667U true CN207540667U (en) | 2018-06-26 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107702793A (en) * | 2017-10-31 | 2018-02-16 | 深圳前海百炼光特种照明有限公司 | A kind of test system and method for testing of hot spot light distribution |
-
2017
- 2017-10-31 CN CN201721425545.2U patent/CN207540667U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107702793A (en) * | 2017-10-31 | 2018-02-16 | 深圳前海百炼光特种照明有限公司 | A kind of test system and method for testing of hot spot light distribution |
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| CP03 | Change of name, title or address |
Address after: 518000 Huasheng Hui complex, 15 Jinsha Road, Baoan District Xixiang street, Shenzhen, Guangdong, 911 Patentee after: Shenzhen Bailian Light Special Lighting Co., Ltd. Address before: 518000 Room 201, building A, No. 1, Qian Wan Road, Qianhai Shenzhen Hong Kong cooperation zone, Shenzhen, Guangdong (Shenzhen Qianhai business secretary Co., Ltd.) Patentee before: Shenzhen Qianhai Bailian Light Special Lighting Co. Ltd. |