CN109469846A - A kind of desk lamp and its implementation of detection light emitting angle adjustment light emission luminance - Google Patents
A kind of desk lamp and its implementation of detection light emitting angle adjustment light emission luminance Download PDFInfo
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- CN109469846A CN109469846A CN201811307990.8A CN201811307990A CN109469846A CN 109469846 A CN109469846 A CN 109469846A CN 201811307990 A CN201811307990 A CN 201811307990A CN 109469846 A CN109469846 A CN 109469846A
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- Prior art keywords
- desk lamp
- illuminating module
- processing unit
- emission luminance
- angle adjustment
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S6/00—Lighting devices intended to be free-standing
- F21S6/002—Table lamps, e.g. for ambient lighting
- F21S6/003—Table lamps, e.g. for ambient lighting for task lighting, e.g. for reading or desk work, e.g. angle poise lamps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V14/00—Controlling the distribution of the light emitted by adjustment of elements
- F21V14/08—Controlling the distribution of the light emitted by adjustment of elements by movement of the screens or filters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V19/00—Fastening of light sources or lamp holders
- F21V19/02—Fastening of light sources or lamp holders with provision for adjustment, e.g. for focusing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
- F21V23/003—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
- Fastening Of Light Sources Or Lamp Holders (AREA)
Abstract
The invention discloses a kind of desk lamps of detection light emitting angle adjustment light emission luminance, including pedestal, side above the pedestal is fixed with bracket, the other end of the bracket is fixed with shaft, the side of the shaft is fixed with lampshade, the inside of the lampshade is fixed with several illuminating modules, the inside of lampshade is further fixed on angular transducer and light modulation processing unit, angular transducer and light modulation processing unit are located at the top of illuminating module, and angular transducer is located at the side of the light modulation processing unit, the invention also discloses a kind of implementation methods of the desk lamp of detection light emitting angle adjustment light emission luminance；After the present invention can also effectively solve the adjustment of desk lamp light-emitting surface, the even drawback of plane of illumination uneven illumination, it can satisfy the higher occasion of lighting requirement, as desktop is painted, because of the uniform-illumination of desktop effective area, can be better than common desk lamp many to the control of picture colouring and overall effect, there is good economic benefit and application prospect.
Description
Technical field
The invention belongs to desk lamp technical fields, and in particular to it is a kind of detection light emitting angle adjustment light emission luminance desk lamp and its
Implementation method.
Background technique
The most light-emitting surface of desk lamp on the market can be adjusted arbitrarily at present, and shining, irradiation projected area is small, and light is concentrated, special
It is not that can form the even problem of apparent uneven illumination in face to be illuminated when tilt angle is larger.Therefore the prior art there are it is following not
Foot:
1, LED drive current is consistent, cannot individually adjust part LED luminance.
2, the uneven illumination of face to be illuminated is even, and with the difference of rotation angle, brought difference is also different.
Summary of the invention
The purpose of the present invention is to provide a kind of desk lamps of detection light emitting angle adjustment light emission luminance, to solve above-mentioned background
The problem of being proposed in technology.A kind of desk lamp of detection light emitting angle adjustment light emission luminance provided by the invention, there is face to be illuminated to shine
Degree is uniform, the good feature of using effect.
Another object of the present invention is to provide a kind of implementation method of the desk lamp of detection light emitting angle adjustment light emission luminance.
To achieve the above object, the invention provides the following technical scheme: a kind of detection light emitting angle adjusts light emission luminance
Desk lamp, including pedestal, the side above the pedestal are fixed with bracket, and the other end of the bracket is fixed with shaft, and described turn
The side of axis is fixed with lampshade, and the inside of the lampshade is fixed with several illuminating modules, and the inside of the lampshade is further fixed on
Angular transducer and light modulation processing unit, the angular transducer and light modulation processing unit are located at the top of illuminating module, and institute
The side that angular transducer is located at the light modulation processing unit is stated, the angular transducer and illuminating module are handled with light modulation respectively
Unit connection.
In the present invention further, the angular transducer is that mechanical angle sensor or digital angular sense
Device.
In the present invention further, the brightness of several illuminating modules is independently adjustable.
In the present invention further, the rotational angle between the lampshade and bracket is 0-30 °.
In the present invention further, the pedestal and bracket fixation in 90 °, and it is non-rotatable.
In the present invention further, the implementation method of the desk lamp of the detection light emitting angle adjustment light emission luminance, packet
Include following steps:
(1), several groups illuminating module is designed, optical characteristics of the every group of illuminating module under same brightness is the same, and every group bright
Degree have 100 grades it is adjustable, measure 100 parts of IES files corresponding to the 100 grades of brightness of every group of illuminating module；
(2), it according to the optical characteristics of desk lamp hardware parameter and illuminating module, calculates desk lamp light-emitting surface and is in different angles
The each group brightness of desktop uniform-illumination can be reached when spending, and be recorded in light modulation processing unit；
(3), angular transducer acquires the angle information of lampshade rotation in real time, and is transferred to light modulation processing unit；
(4), light modulation processing unit adjusts the luminous intensity of corresponding illuminating module according to the angle information of rotation.
In the present invention further, the implementation method of the desk lamp of the detection light emitting angle adjustment light emission luminance, institute
State the height that desk lamp hardware parameter in rapid two includes bracket, the length of shaft to each illuminating module.
In the present invention further, the implementation method of the desk lamp of the detection light emitting angle adjustment light emission luminance, institute
It states in step 2 angular transducer and gives data feedback to light modulation processing unit by IIC interface.
In the present invention further, the implementation method of the desk lamp of the detection light emitting angle adjustment light emission luminance, institute
It states and dims the luminous intensity that processing unit adjusts corresponding illuminating module by PWM in step 4.
In the present invention further, the implementation method of the desk lamp of the detection light emitting angle adjustment light emission luminance, institute
It states illuminating module in step 1 and is provided with tri- groups of A, B and C, and tri- groups of A, B and C array from left to right, with B group illuminating module
It is illustrated in the luminance calculation method of reference point:
By the IES file of illuminating module, B group luminescent film group is obtained in the light intensity I of light-emitting surface vertical direction0；
I0Component in reference point direction: I=I0cos∠2；①
Illumination on reference point direction:
B group falls in the illumination in reference point vertical direction:
By formula, 3. available three illuminating modules fall in the total illumination of reference point: E2=EA+EB+EC；
By the luminance calculation formula of other equally available reference points of above formula, by bringing different IES into
File obtains different luminous intensity I0, can finally match the illumination tri- groups of each correspondences of consistent ABC for different reference points of sening as an envoy to
I0Parameter obtains each group of light-source brightness, reaches final purpose.
The above known parameters: I0, obtained by the IES file of illuminating module；
The above unknown parameter: ∠ 2, ∠ 3 and r；
Three unknown parameters above can be calculated by following known parameters:
H1: the support height of desk lamp；
LB: length of the rotating shaft position of desk lamp to illuminating module B；
L1: the length of two neighboring reference points of desk lamp desktop；
∠ 1: angular transducer can obtain in real time；
Formula:
H2=LBsin∠1；④
H3=H1+H2；⑤
L2=LBcos∠1；⑥
L3=L2-L1；⑦
By the formula 4. 5. 6. 7. 8. value of available ∠ 3；
By the formula 9. 10. value of available r；
By formulaThe value of available ∠ 2.
Compared with prior art, the beneficial effects of the present invention are:
1, the present invention can adjust the luminous intensity of every group of illuminating module according to the angle that lampshade rotates, and solve existing
Technology cannot individually adjust the problem of part LED luminance, reduce the energy consumption that desk lamp uses；
2, after the present invention can also effectively solve the adjustment of desk lamp light-emitting surface, the even drawback of plane of illumination uneven illumination can be with
Meet the higher occasion of lighting requirement, if desktop is painted, because of the uniform-illumination of desktop effective area, to picture colouring and entirety
The control of effect can be better than common desk lamp very much, have good economic benefit and application prospect；
3, the present invention adjusts the luminous intensity of each illuminating module by angular transducer and light modulation processing unit cooperation, makes
The use of desk lamp is more intelligent；
4, the uniform-illumination of plane of illumination of the present invention, can alleviate user uses asthenopia.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the structural schematic diagram of illuminating module irradiating angle of the present invention；
Fig. 3 is the structural schematic diagram that present invention light modulation processing unit is connect with luminescent film group and angular transducer；
In figure: 1, pedestal；2, bracket；3, shaft；4, angular transducer；5, processing unit is dimmed；6, illuminating module；7, lamp
Cover.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Embodiment
Fig. 1-3 is please referred to, the present invention is the following technical schemes are provided: a kind of platform of detection light emitting angle adjustment light emission luminance
Lamp, including pedestal 1, the side of 1 top of pedestal have been bolted bracket 2, and the other end of bracket 2, which has been bolted, to be turned
Axis 3, the side of shaft 3 have been bolted lampshade 7, and the inside of lampshade 7, which is fixed, several illuminating modules 6, lampshade 7
Inside also pass through screw be fixed with angular transducer 4 and light modulation processing unit 5, angular transducer 4 and light modulation processing unit 5
In the top of illuminating module 6, and angular transducer 4 is located at the side of light modulation processing unit 5, angular transducer 4 and illuminating module 6
It is connect respectively with light modulation processing unit 5.
Further, angular transducer 4 is mechanical angle sensor or digital angular sensor, is selected in the present embodiment
With digital angular sensor.
Further, the brightness of several illuminating modules 6 is independently adjustable.
Further, the rotational angle between lampshade 7 and bracket 2 is 0-30 °.
Further, pedestal 1 and the fixation in 90 ° of bracket 2, and it is non-rotatable.
Further, the implementation method of the desk lamp of detection light emitting angle adjustment light emission luminance of the present invention, including with
Lower step:
(1), tri- groups of illuminating modules 6 of A, B and C are designed, optical characteristics of the every group of illuminating module 6 under same brightness is the same,
Every group of brightness have 100 grades it is adjustable, by the light distribution test equipment of the model G0-2000 of distant place photoelectricity, every group of hair can be measured
100 parts of IES files corresponding to the 100 grades of brightness of optical mode group；
(2), it according to the optical characteristics of desk lamp hardware parameter and illuminating module 6, calculates desk lamp light-emitting surface and is in different angles
The each group brightness of desktop uniform-illumination can be reached when spending, and be recorded in light modulation processing unit 5；
(3), the angle information that acquisition lampshade 7 rotates in real time of angular transducer 4, and it is transferred to light modulation processing unit 5；
(4), light modulation processing unit 5 adjusts the luminous intensity of corresponding illuminating module 6 according to the angle information of rotation.
Further, in step 2 desk lamp hardware parameter include bracket 2 height H1=0.5m, shaft 3 shine to each
The length of mould group 6 is equidistantly 0.1m, L in Fig. 2B=0.1*2=0.2m.
Further, data feedback is given by IIC interface and dims processing unit 5 by angular transducer 4 in step 2.
Further, the luminous intensity that processing unit 5 adjusts corresponding illuminating module 6 by PWM is dimmed in step 4.
Angular transducer 4 is the ADXL345 type of Ya De promise semiconductor technology (Shanghai) Co., Ltd. sale in the present embodiment
Angular transducer；Dimming processing unit 5 is the MC6956 single-chip microcontroller of Shanghai bright sunset micro- electricity sale as light modulation processing unit；It shines
The COB light source that mould group 6 is the 9V-1A of Citizen sale cooperates TaiWan, China to build up scientific and technological MBI6656 constant current DC-DC composition.
Referring to Fig. 2, being illustrated with B group illuminating module in 2 points (reference point) of luminance calculation method:
By the IES file of illuminating module, B group luminescent film group is obtained in the light intensity I of light-emitting surface vertical direction0；
I0Component in 2 directions: I=I0cos∠2；①
Illumination on 2 directions:
B group falls in the illumination in 2 vertical direction:
By formula, 3. available three illuminating modules fall in 2 points of total illumination: E2=EA+EB+EC；
Pass through the equally available E of above formula1To E6Luminance calculation formula, obtained by the IES file for bringing different into
To different luminous intensity I0, can finally match the E that sends as an envoy to1To E6Tri- groups of each corresponding I of the consistent ABC of illumination0Parameter obtains
To each group of light-source brightness, reach final purpose.
The above known parameters: I0, obtained by the IES file of illuminating module；
The above unknown parameter: ∠ 2, ∠ 3 and r；
Three unknown parameters above can be calculated by following known parameters:
H1: the support height of desk lamp is 0.5m；
LB: the length of the rotating shaft position of desk lamp to illuminating module B is 0.2m；
L1: the length that 1 point to 2 points of desk lamp desktop is 0.1m；
∠ 1: angular transducer can obtain in real time, and the present embodiment takes 20 °；
Formula:
H2=LBsin∠1；④
H3=H1+H2；⑤
L2=LBcos∠1；⑥
L3=L2-L1；⑦
By the formula 4. 5. 6. 7. 8. value of available ∠ 3；
H2=0.2sin20 °=0.0684m；
H3=0.5+0.0684=0.5684；L2=0.2cos20 °=0.1879m；
L3=0.1879-0.1=0.0879m；
Tan ∠ 3=0.0879/0.5684=0.1546；
∠ 3=8.788 °；
By the formula 9. 10. value of available r；
0.1528=0.1879/r；
R=0.5752m；By formulaThe value of available ∠ 2；
20 ° of+∠ 5=90 °；
∠ 5=70 °；
4+70 °=90 ° ∠；
∠ 4=20 °；
+ 20 ° of ∠ 2=8.788 °=28.788 °；
I0=100cd；
We will calculate result substitution formula above and 3. can obtain:
EB=(100cos28.788 ° cos8.788 °)/0.5752=150.58lux.
By above embodiments it will be seen that passing through the optical characteristics of desk lamp hardware parameter and illuminating module, calculate
Desk lamp light-emitting surface is in effective 0-30 ° of angle of rotation, brightness and note corresponding to corresponding three illuminating modules of each angle
Record is inside light modulation processing unit；In actual use, as shown in figure 3, angular transducer real-time monitoring light-emitting surface rotates
Angle, and light modulation processing unit is fed back to by IIC interface, light modulation processing unit is found by angle information is pre-stored in the inside
Then the corresponding relationship of angle and the brightness of mould group is adjusted the brightness of three mould groups by PWM, achievees the purpose that uniform-illumination.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (10)
1. a kind of desk lamp of detection light emitting angle adjustment light emission luminance, including pedestal (1), it is characterised in that: on the pedestal (1)
The side of side is fixed with bracket (2), and the other end of the bracket (2) is fixed with shaft (3), and the side of the shaft (3) is fixed
Have lampshade (7), the inside of the lampshade (7) is fixed with several illuminating modules (6), and the inside of the lampshade (7) is further fixed on
Angular transducer (4) and light modulation processing unit (5), the angular transducer (4) and light modulation processing unit (5) are located at illuminating module
(6) top, and the angular transducer (4) is located at the side of light modulation processing unit (5), the angular transducer (4)
It is connect respectively with light modulation processing unit (5) with illuminating module (6).
2. a kind of desk lamp of detection light emitting angle adjustment light emission luminance according to claim 1, it is characterised in that: the angle
Spending sensor (4) is mechanical angle sensor or digital angular sensor.
3. a kind of desk lamp of detection light emitting angle adjustment light emission luminance according to claim 1, it is characterised in that: several
The brightness of the illuminating module (6) is independently adjustable.
4. a kind of desk lamp of detection light emitting angle adjustment light emission luminance according to claim 1, it is characterised in that: the lamp
Covering the rotational angle between (7) and bracket (2) is 0-30 °.
5. a kind of desk lamp of detection light emitting angle adjustment light emission luminance according to claim 1, it is characterised in that: the bottom
Seat (1) and bracket (2) fixation in 90 °, and it is non-rotatable.
6. the implementation method of the desk lamp of detection light emitting angle adjustment light emission luminance according to claim 1-5,
It is characterized in that, comprising the following steps:
(1), several groups illuminating module (6) being designed, optical characteristics of the every group of illuminating module (6) under same brightness is the same, and every group
Brightness have 100 grades it is adjustable, measure 100 parts of IES files corresponding to (6) the 100 grades of brightness of every group of illuminating module；
(2), it according to the optical characteristics of desk lamp hardware parameter and illuminating module (6), calculates desk lamp light-emitting surface and is in different angle
When can reach each group brightness of desktop uniform-illumination, and be recorded in light modulation processing unit (5) in；
(3), angular transducer (4) acquires the angle information of lampshade (7) rotation in real time, and is transferred to light modulation processing unit (5)；
(4), light modulation processing unit (5) adjusts the luminous intensity of corresponding illuminating module (6) according to the angle information of rotation.
7. the implementation method of the desk lamp of detection light emitting angle adjustment light emission luminance according to claim 6, it is characterised in that:
Desk lamp hardware parameter includes the height of bracket (2), the length of shaft (3) to each illuminating module (6) in the step 2.
8. the implementation method of the desk lamp of detection light emitting angle adjustment light emission luminance according to claim 6, it is characterised in that:
Angular transducer (4) gives data feedback to light modulation processing unit (5) by IIC interface in the step 2.
9. the implementation method of the desk lamp of detection light emitting angle adjustment light emission luminance according to claim 6, it is characterised in that:
The luminous intensity that processing unit (5) adjust corresponding illuminating module (6) by PWM is dimmed in the step 4.
10. the implementation method of the desk lamp of detection light emitting angle adjustment light emission luminance according to claim 6, feature exist
In: illuminating module (6) is provided with tri- groups of A, B and C in the step 1, and tri- groups of A, B and C array from left to right, with B group
Illuminating module is illustrated in the luminance calculation method of reference point:
By the IES file of illuminating module, B group luminescent film group is obtained in the light intensity I of light-emitting surface vertical direction0；
I0Component in reference point direction: I=IOcos∠2； ①
Illumination on reference point direction:
B group falls in the illumination in reference point vertical direction:
By formula, 3. available three illuminating modules fall in the total illumination of reference point: E2=EA+EB+EC；
By the luminance calculation formula of other equally available reference points of above formula, by bringing different IES files into
Obtain different luminous intensity I0, can finally match the tri- groups of each corresponding I of the consistent ABC of illumination for different reference points of sening as an envoy to0Ginseng
Number, obtains each group of light-source brightness, reaches final purpose.
The above known parameters: I0, obtained by the IES file of illuminating module；
The above unknown parameter: ∠ 2, ∠ 3 and r；
Three unknown parameters above can be calculated by following known parameters:
H1: the support height of desk lamp；
LB: length of the rotating shaft position of desk lamp to illuminating module B；
L1: the length of two neighboring reference points of desk lamp desktop；
∠ 1: angular transducer can obtain in real time；
Formula:
H2=LBsin∠1； ④
H3=H1+H2； ⑤
L2=LBcos∠1； ⑥
L3=L2-L1； ⑦
By the formula 4. 5. 6. 7. 8. value of available ∠ 3；
By the formula 9. 10. value of available r；
By formulaThe value of available ∠ 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811307990.8A CN109469846A (en) | 2018-11-05 | 2018-11-05 | A kind of desk lamp and its implementation of detection light emitting angle adjustment light emission luminance |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811307990.8A CN109469846A (en) | 2018-11-05 | 2018-11-05 | A kind of desk lamp and its implementation of detection light emitting angle adjustment light emission luminance |
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| CN109469846A true CN109469846A (en) | 2019-03-15 |
Family
ID=65667054
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|---|---|---|---|
| CN201811307990.8A Pending CN109469846A (en) | 2018-11-05 | 2018-11-05 | A kind of desk lamp and its implementation of detection light emitting angle adjustment light emission luminance |
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| CN110107832A (en) * | 2019-05-09 | 2019-08-09 | 苏州佳世达电通有限公司 | Lamps and lanterns |
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| CN114909615A (en) * | 2022-05-17 | 2022-08-16 | 深圳市帝狼光电有限公司 | Double-sided LED table lamp and using method thereof |
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