CN109869664A - A kind of blackboard lights - Google Patents
A kind of blackboard lights Download PDFInfo
- Publication number
- CN109869664A CN109869664A CN201910271618.4A CN201910271618A CN109869664A CN 109869664 A CN109869664 A CN 109869664A CN 201910271618 A CN201910271618 A CN 201910271618A CN 109869664 A CN109869664 A CN 109869664A
- Authority
- CN
- China
- Prior art keywords
- light source
- source module
- group
- module group
- shell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 24
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 24
- 239000000758 substrate Substances 0.000 claims abstract description 24
- 230000003287 optical effect Effects 0.000 claims abstract description 11
- 230000003760 hair shine Effects 0.000 claims abstract description 4
- 238000004020 luminiscence type Methods 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 9
- JRBRVDCKNXZZGH-UHFFFAOYSA-N alumane;copper Chemical compound [AlH3].[Cu] JRBRVDCKNXZZGH-UHFFFAOYSA-N 0.000 claims description 3
- 238000005253 cladding Methods 0.000 claims description 3
- 238000009738 saturating Methods 0.000 claims description 2
- 238000005286 illumination Methods 0.000 abstract description 4
- 238000007789 sealing Methods 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 abstract 1
- 241001465382 Physalis alkekengi Species 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000017525 heat dissipation Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000004313 glare Effects 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 208000003464 asthenopia Diseases 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 208000002173 dizziness Diseases 0.000 description 1
- 230000004438 eyesight Effects 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Landscapes
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The present invention relates to field of illumination lamp technology, provide a kind of blackboard lights, including shell；Light source module group is set in the shell for shining comprising substrate and the multi-group light-emitting unit being set on the substrate；Driving power component is set to the shell inside/outside, is used to provide the described electric power required for light source module group shines；Anti-dazzle optical mode group, is set to the lower section of the light source module group, for eliminating direct line in dazzle angle comprising spreadlight lens and the aluminum grill unit being set on the outside of the spreadlight lens.The spreadlight lens is the transparent PC multimaterial component for sealing and protecting the light source module group; the light source module group emits beam; light is after the refraction of the spreadlight lens of the anti-dazzle optical mode group; it is formed and the light source module group is in 10 degree of emergent ray; it is blocked again through the aluminum grill unit; it is possible to prevente effectively from direct line direct irradiation goes out blackboard, dazzle caused by direct line is effectively prevented, improved the comfort level of teacher's upper class hour.
Description
Technical field
The present invention relates to lighting technical field more particularly to a kind of blackboard lights.
Background technique
Blackboard lights are installed in classroom, provide normal lighting.Existing blackboard lights, when people are sitting in indoor holding head-up
When (sight is horizontal), there are certain dazzle angles for blackboard lights, as shown in Figure 1, in which: θ is lamps and lanterns and appraisal of glare viewpoint (i.e. people
Eyes) line and lamps and lanterns drop wire angle, hs is lamps and lanterns to the vertical range for evaluating viewpoint (eyes), and a is lamps and lanterns to commenting
The horizontal distance of valence viewpoint (eyes), tg θ=a/hs.Dazzle angle is the main reason for causing direct glare.
The structure of the blackboard lights overwhelming majority of present school's application is all the band built-in T8 fluorescent tube of arc reflection cover stent
Form, structure is as shown in Fig. 2, include lamp housing, fluorescent tube and reflector, this lamps and lanterns has the following problems: (1) blackboard lights are mounted on black
Above plate, as shown in figure 3, the light that such structure reflective cover is reflected largely is irradiated to the top of blackboard and the wall of top
Face, and really need the blackboard region illuminated then without enough light, extremely so as to cause the illumination on blackboard lower part and top
Unevenly；(2) blackboard lights are the crown front upper places of the teacher of installation, and it is old that the blackboard lights of such structure have direct line that can enter
The eyes of teacher be easy to cause the visual fatigue of teacher, impart knowledge to students in such circumstances for a long time, will cause biggish injury to eyesight；(3)
Universal with classroom multimedia equipment, the mounting heights of blackboard lights is by must be higher than the mounting height of projection device, in this way
Blackboard lights are irradiated to the light in the effective using face of blackboard will be less and more uneven；(4) light source that blackboard lights use for
T8 fluorescent tube (can be conventional fluorescent fluorescent tube, be also possible to LED fluorescent lamp tube), then can be because of using LED T8 fluorescent tube
Heat dissipation area is limited, and in the case where meeting blackboard 500lx illumination requirement, the service life of fluorescent tube is unable to get effective guarantee.
Summary of the invention
Technical problem solved by the invention is to provide a kind of blackboard lights that can eliminate direct line in dazzle angle.
The present invention provides a kind of blackboard lights characterized by comprising
Shell；
Light source module group is set in the shell for shining comprising substrate and the multiple groups being set on the substrate
Luminescence unit；
Driving power component is set to the shell inside/outside, is used to provide the described electricity required for light source module group shines
Power；
Anti-dazzle optical mode group, is set to the lower section of the light source module group, for eliminating direct line in dazzle angle comprising partially
Optical lens and the aluminum grill unit being set on the outside of the spreadlight lens.
Further, the spreadlight lens includes body part, is set to the body part top surface and the multi-group light-emitting
It the corresponding multiple polarisation portions of unit and is respectively arranged at multi-group light-emitting unit cladding at the top of multiple polarisation portions
Multiple receiving portions.
Further, the receiving portion includes the first vertical incidence surface, the second incidence surface and enters with described first
The height of the third incident curved surfaces that smooth surface is connected with the bottom of second incidence surface, first incidence surface is greater than described second
Incidence surface.
Further, luminescence unit described in multiple groups is arranged along the length direction of the substrate respectively, the adjacent polarisation
Cavity is formed between lens and the substrate.
Further, the aluminum grill unit include along the shell length direction be arranged two mainboards,
Every several vertical flase floors being set between described two mainboards and the support plate for being set to two mainboard bottoms.
Further, the two sides of each flase floor is respectively arranged with several jagged fins.
Further, the shell includes the main body of aluminum profile, the lamp cap for being set to the main body both ends and setting
The light source module group and the anti-dazzle optical mode group are fixed in the shell by the cover board on the outside of the lamp cap, the lamp cap.
Further, the top of the main body is provided with several protrusions along its length, the protrusion it is interior
Side is respectively set fluted, and the top surface of the main body is provided with the first mounting groove, the light source module group and institute along its length
Spreadlight lens is stated to be connected by screw with the top of the shell.
Further, the case inside is provided with second with aluminum grill unit cooperation along its length
Mounting groove.
Further, the substrate is to cover copper aluminum substrate, and the multi-group light-emitting unit is LED luminescence unit, described more
Group luminescence unit is soldered on the substrate by SMD technique.
Blackboard lights of the invention, the spreadlight lens are the transparent PC multimaterial components for sealing and protecting the light source module group,
The light source module group emits beam, and light is formed and the light source module group after the refraction of the spreadlight lens of the anti-dazzle optical mode group
It is blocked in 10 degree of emergent ray, then through the aluminum grill unit, it is possible to prevente effectively from direct line direct irradiation goes out blackboard,
Dazzle caused by direct line is effectively prevented, the comfort level of teacher's upper class hour was improved.
Detailed description of the invention
Fig. 1 is the schematic diagram at the dazzle angle of background technique；
Fig. 2 is the structural schematic diagram of existing blackboard lights in background technique；
Fig. 3 is the schematic diagram of the installation site of existing blackboard lights in background technique；
Fig. 4 is the exploded view of blackboard lights of the invention；
Fig. 5 is the sectional view of blackboard lights of the invention；
Fig. 6 is the cross-sectional view of blackboard lights length direction of the invention；
Fig. 7 is the light path schematic diagram of blackboard lights of the invention；
Fig. 8 is blackboard lights light distribution curve of the invention；
Fig. 9 is the UGR test data table of blackboard lights of the invention；
In the figure, it is marked as shell 1, main body 11, lamp cap 12, cover board 13, protrusion 14, groove 15, the first mounting groove 16, the
Two mounting grooves 17, light source module group 2, substrate 21, luminescence unit 22, cavity 23, dazzle mould group 3, spreadlight lens 31, body part 311,
Polarisation portion 312, receiving portion 313, the first incidence surface 3131, the second incidence surface 3132, third incident curved surfaces 3133, aluminum grid list
Member 32, mainboard 321, flase floor 322, support plate 323, fin 324, screw 4.
Specific embodiment
Embodiments of the present invention are described below in detail, the example of the embodiment is shown in the accompanying drawings, wherein from beginning
Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng
The embodiment for examining attached drawing description is exemplary, it is intended to is used to explain the present invention, and is not considered as limiting the invention.
As shown in Figures 4 to 6, the present invention provides a kind of blackboard lights, comprising: shell 1；Light source module group 2 is set to the shell
In body 1, for shining, the light source module group 2 includes substrate 21 and the multi-group light-emitting unit 22 being set on the substrate 21；It drives
Dynamic power supply module (not shown), is set to 1 inside/outside of shell, is used to provide the described electricity required for light source module group 2 shines
Power；Anti-dazzle optical mode group 3 is set to the lower section of the light source module group 2, for eliminating direct line in dazzle angle comprising polarisation
Lens 31 and the aluminum grill unit 32 for being set to 31 outside of spreadlight lens.The spreadlight lens 31 is to seal and protect institute
The transparent PC multimaterial component of light source module group 2 is stated, the light source module group 2 emits beam, polarisation of the light through the anti-dazzle optical mode group 3
After lens 31 reflect, is formed and the light source module group 2 is in 10 degree of emergent ray, then blocked through the aluminum grill unit 32,
It is possible to prevente effectively from direct line direct irradiation goes out blackboard, dazzle caused by direct line is effectively prevented, is improved on teacher
The comfort level of class hour.
The spreadlight lens 31 includes body part 311, is set to 311 top surface of body part and the multi-group light-emitting unit
22 corresponding multiple lens sections 312 and 31 top of multiple spreadlight lenses is respectively arranged at by the multi-group light-emitting unit 22
Multiple receiving portions 313 of cladding.The body part 311 is cuboid, and the lens section 312 and the receiving portion 313 can be
Direct injection molding is also possible to be process, convenient for production；The receiving 313 is not used to accommodate the multi-group light-emitting unit
22。
In conjunction with shown in Fig. 7 to Fig. 9, the receiving portion 313 includes the first vertical incidence surface 3131, the second incidence surface 3132
And the third incident curved surfaces 3133 being connected with the bottom of first incidence surface 3131 and second incidence surface 3132, it is described
The height of first incidence surface 3131 is greater than second incidence surface 3132.When installation, second incidence surface 3132 is located at close
The direction of blackboard metope, the light issued from the luminescence unit 22 are saturating into the polarisation by the third incident curved surfaces 3133
Mirror 31 is formed with the central axis of the luminescence unit 22 in 10 degree of emergent ray, largest beam angle is 20 after reflecting
Degree, average beam angle are 41 degree, meet asymmetric light emitting angle needed for blackboard lights, can effectively completely cut off the blackboard lights dazzle angle
Direct line in (45 ° of 85 ° of < dazzle angle <) range, emergent ray are blocked by the aluminum grill unit 32, can be effective
Direct projection intense direct illumination is avoided to go out the blackboard lights.
Luminescence unit 22 described in multiple groups is arranged along the length direction of the substrate 21 respectively, adjacent 312 He of lens section
Cavity 23 is formed between the substrate 21.When the spreadlight lens 31 is integrated injection molding, the cavity reduces described
The materials of spreadlight lens 31, save the cost.
The aluminum grill unit 32 includes two mainboards 321 being arranged along the length direction of the shell 1, interval setting
Several vertical flase floors 322 between described two mainboards 321 and the support for being set to two 321 bottoms of mainboard
Plate 323；The mainboard 321 plays the role of fixed support, several vertical 322 surfaces of flase floor can be plane or
Non-planar, during installation, the support plate 321 plays the fixed effect of support.
As the preferred embodiment of the present invention, the two sides of each flase floor 322 is respectively arranged with several jagged
Fin 324.Several fins 324 on the flase floor 322 enhance the intensity of the flase floor 322, specifically, can be with
It is that the flase floor 322 is spliced by multiple aluminum plates, certainly, in other preferred embodiments of the invention, each lattice
The two sides of screen 322 can be without the fin 324, and this will not be repeated here.
The shell 1 includes the main body 11 of aluminum profile, is set to the lamp cap 12 at 11 both ends of main body and is set to institute
The cover board 13 in 12 outside of lamp cap is stated, the light source module group 2 and the anti-dazzle optical mode group 3 are fixed on the shell by the lamp cap 12
In 1.The main body 11 of aluminum profile, stable structure, and the entire main body 11 is used to radiate, rapid heat dissipation, can rapidly by
The heat of the light source module group 2 distributes, and improves the service life of the light source module group 2.
The top of the main body 11 is provided with several protrusions 14, the inside difference of the protrusion 14 along its length
It is arranged fluted 15, the top surface of the main body 11 is provided with the first mounting groove 16, the light source module group 2 and institute along its length
Spreadlight lens 31 is stated to be connected by screw 4 with the top of the shell 1.Several grooves 15 described in 14 box of several protrusions,
The heat dissipation area of the main body 11 is increased, heat dissipation effect is improved.
1 inside of shell is provided with the second mounting groove with the aluminum grill unit 32 cooperation along its length
17.The support plate 323 is supported in the bottom of second mounting groove 17, and top is located at the top surface of second mounting groove 17,
After second mounting groove 17 positions the aluminum grill unit 32, two lamp caps 12 are respectively by the aluminum grid list
The both ends clamping of member 32 is fixed, and is locked by screw, can be fixed by the aluminum grill unit 32, fixed reliable, and is torn open
Dress takes convenient.
The substrate is to cover copper aluminum substrate, and the multi-group light-emitting unit is LED luminescence unit, and the multi-group light-emitting unit is logical
SMD technique is crossed to be soldered on the substrate.Has the advantages that long service life.
Fig. 9 is blackboard lights of the invention UGR value actually measured under different use occasions, it is seen then that the blackboard lights it is dizzy
Light value UGR < 16 can effectively reduce dazzle to blackboard lights, improve comfort level when using.
Blackboard lights of the invention, the light source module group 2 emit beam, spreadlight lens of the light through the anti-dazzle optical mode group 3
After 31 refractions, being formed with the light source module group 2 is in 10 degree of emergent ray, then is blocked through the aluminum grill unit 32, can be with
Effectively direct line direct irradiation is avoided to go out blackboard, effectively prevent dazzle caused by direct line, improved teacher's upper class hour
Comfort level.
The above is only highly preferred embodiment of the present invention, is not intended to limit the present invention in any form, and is appointed
What those skilled in the art, without departing from the scope of the technical proposal of the invention, using in the method for the disclosure above
Appearance makes many possible changes and modifications to technical solution of the present invention, belongs to protective scope of the claims.
Claims (10)
1. a kind of blackboard lights characterized by comprising
Shell；
Light source module group is set in the shell for shining comprising substrate and the multi-group light-emitting being set on the substrate
Unit；
Driving power component is set to the shell inside/outside, is used to provide the described electric power required for light source module group shines；
Anti-dazzle optical mode group, is set to the lower section of the light source module group, for eliminating direct line in dazzle angle comprising polarisation is saturating
Mirror and the aluminum grill unit being set on the outside of the spreadlight lens.
2. blackboard lights as described in claim 1, it is characterised in that: the spreadlight lens includes body part, is set to described
Body portion, multiple polarisation portions corresponding with the multi-group light-emitting unit, top surface and be respectively arranged at the top of multiple polarisation portions will
Multiple receiving portions of the multi-group light-emitting unit cladding.
3. blackboard lights as claimed in claim 2, it is characterised in that: the receiving portion includes the first vertical incidence surface, second
Incidence surface and the third incident curved surfaces being connected with the bottom of first incidence surface and second incidence surface, described first enters
The height of smooth surface is greater than second incidence surface.
4. blackboard lights as claimed in claim 2, it is characterised in that: luminescence unit described in multiple groups is respectively along the length of the substrate
Direction setting, forms cavity between the adjacent spreadlight lens and the substrate.
5. blackboard lights as described in claim 1, it is characterised in that: the aluminum grill unit includes the length along the shell
Two mainboards of direction setting, several vertical flase floors for being arranged at intervals between described two mainboards and it is set to two
The support plate of the mainboard bottom.
6. blackboard lights as claimed in claim 5, it is characterised in that: the two sides of each flase floor is respectively arranged with several saws
The fin of dentation.
7. blackboard lights as described in claim 1, it is characterised in that: the shell include the main body of aluminum profile, be set to it is described
The lamp cap at main body both ends and the cover board being set on the outside of the lamp cap, the lamp cap is by the light source module group and the anti-dazzle
Mould group is fixed in the shell.
8. classroom lamp as claimed in claim 7, it is characterised in that: the top of the main body is provided with several along its length
Protrusion, is respectively set on the inside of the protrusion fluted, and the top surface of the main body is provided with the first peace along its length
Tankage, the light source module group and the spreadlight lens are connected by screw with the top of the shell.
9. classroom lamp as claimed in claim 6, it is characterised in that: the case inside be provided with along its length with it is described
Second mounting groove of aluminum grill unit cooperation.
10. classroom lamp as described in claim 1, it is characterised in that: the substrate is to cover copper aluminum substrate, the multi-group light-emitting list
Member is LED luminescence unit, and the multi-group light-emitting unit is soldered on the substrate by SMD technique.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910271618.4A CN109869664A (en) | 2019-04-04 | 2019-04-04 | A kind of blackboard lights |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910271618.4A CN109869664A (en) | 2019-04-04 | 2019-04-04 | A kind of blackboard lights |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109869664A true CN109869664A (en) | 2019-06-11 |
Family
ID=66922145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910271618.4A Pending CN109869664A (en) | 2019-04-04 | 2019-04-04 | A kind of blackboard lights |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109869664A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110578888A (en) * | 2019-09-29 | 2019-12-17 | 苏州光景照明科技有限公司 | Integrated high-efficiency heat-dissipation LED blackboard lamp |
| CN112050123A (en) * | 2020-09-18 | 2020-12-08 | Tcl华瑞照明科技（惠州）有限公司 | Lighting lamp |
| CN114992587A (en) * | 2022-06-10 | 2022-09-02 | 漳州立达信灯具有限公司 | Anti-impact lamp |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1512482A (en) * | 2002-12-27 | 2004-07-14 | 茅祚麻 | Sound absorptive material and its producing method and use |
| CN103574384A (en) * | 2012-07-19 | 2014-02-12 | 苏州曼斯雷德光电有限公司 | Light-emitting diode (LED) ramp lamp |
| CN204189100U (en) * | 2014-10-08 | 2015-03-04 | 技嘉科技股份有限公司 | There is the sheet metal strengthening structure |
| CN204459837U (en) * | 2015-02-12 | 2015-07-08 | 赛尔富电子有限公司 | A kind of LED strip shape lamp |
| CN105190153A (en) * | 2013-05-31 | 2015-12-23 | 夏普株式会社 | Light guiding plate, illumination device, display device, and television receiving device |
| CN105351822A (en) * | 2015-11-18 | 2016-02-24 | 厦门立达信照明有限公司 | LED blackboard lamp |
| CN205807088U (en) * | 2016-06-03 | 2016-12-14 | 深圳市九洲光电科技有限公司 | A kind of blackboard lights |
| CN206207183U (en) * | 2016-11-17 | 2017-05-31 | 苏州光景照明科技有限公司 | Anti- glare classroom lamp |
| CN206826049U (en) * | 2017-04-06 | 2018-01-02 | 浙江志江风机有限公司 | A kind of anti-rust metal sheet material with flanging reinforcement structure |
| CN108224241A (en) * | 2018-01-17 | 2018-06-29 | 南京基恩照明科技有限公司 | Integral type guardrail Projecting Lamp |
| CN108302380A (en) * | 2018-01-11 | 2018-07-20 | 复旦大学 | A kind of lens type LED blackboard lights |
| CN209415237U (en) * | 2019-04-04 | 2019-09-20 | 苏州光景照明科技有限公司 | A kind of blackboard lights |
-
2019
- 2019-04-04 CN CN201910271618.4A patent/CN109869664A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1512482A (en) * | 2002-12-27 | 2004-07-14 | 茅祚麻 | Sound absorptive material and its producing method and use |
| CN103574384A (en) * | 2012-07-19 | 2014-02-12 | 苏州曼斯雷德光电有限公司 | Light-emitting diode (LED) ramp lamp |
| CN105190153A (en) * | 2013-05-31 | 2015-12-23 | 夏普株式会社 | Light guiding plate, illumination device, display device, and television receiving device |
| CN204189100U (en) * | 2014-10-08 | 2015-03-04 | 技嘉科技股份有限公司 | There is the sheet metal strengthening structure |
| CN204459837U (en) * | 2015-02-12 | 2015-07-08 | 赛尔富电子有限公司 | A kind of LED strip shape lamp |
| CN105351822A (en) * | 2015-11-18 | 2016-02-24 | 厦门立达信照明有限公司 | LED blackboard lamp |
| CN205807088U (en) * | 2016-06-03 | 2016-12-14 | 深圳市九洲光电科技有限公司 | A kind of blackboard lights |
| CN206207183U (en) * | 2016-11-17 | 2017-05-31 | 苏州光景照明科技有限公司 | Anti- glare classroom lamp |
| CN206826049U (en) * | 2017-04-06 | 2018-01-02 | 浙江志江风机有限公司 | A kind of anti-rust metal sheet material with flanging reinforcement structure |
| CN108302380A (en) * | 2018-01-11 | 2018-07-20 | 复旦大学 | A kind of lens type LED blackboard lights |
| CN108224241A (en) * | 2018-01-17 | 2018-06-29 | 南京基恩照明科技有限公司 | Integral type guardrail Projecting Lamp |
| CN209415237U (en) * | 2019-04-04 | 2019-09-20 | 苏州光景照明科技有限公司 | A kind of blackboard lights |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110578888A (en) * | 2019-09-29 | 2019-12-17 | 苏州光景照明科技有限公司 | Integrated high-efficiency heat-dissipation LED blackboard lamp |
| CN112050123A (en) * | 2020-09-18 | 2020-12-08 | Tcl华瑞照明科技（惠州）有限公司 | Lighting lamp |
| CN114992587A (en) * | 2022-06-10 | 2022-09-02 | 漳州立达信灯具有限公司 | Anti-impact lamp |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5550112B2 (en) | Luminous flux control member, light emitting device, and illumination device | |
| US9518705B2 (en) | Lens and an illumination device having the lens | |
| CN109869664A (en) | A kind of blackboard lights | |
| EP2737243B1 (en) | Lighting module | |
| JP6868016B2 (en) | Lighting system and how to generate light output | |
| CN112664845B (en) | Anti-dazzle LED lighting lamp tube | |
| CN103939791A (en) | Lighting device and image display device using the same | |
| CN103791255A (en) | Light-emitting diode lamp bulb | |
| US20110211367A1 (en) | Reflective plate, planar lamp and planar lamp fixture including the same | |
| CN109838700A (en) | A kind of classroom lamp | |
| CN105065978B (en) | Reflective blackboard lights | |
| CN209415237U (en) | A kind of blackboard lights | |
| US20120039076A1 (en) | Energy-saving lighting device with even distribution of light | |
| CN203787051U (en) | LED lamp box | |
| KR200461056Y1 (en) | Folding screen type lighting apparatus | |
| US20130027971A1 (en) | Dazzle prevention lighting fixture with light guide means to disperse emitted light uniformly | |
| KR100914491B1 (en) | Lighting device | |
| KR102376089B1 (en) | Lamp for vehicle | |
| JP5830675B2 (en) | lighting equipment | |
| CN220169269U (en) | Intelligent constant-illumination LED grille anti-dazzle eye-protection classroom lamp | |
| CN113606559B (en) | Lamp structure | |
| CN220397367U (en) | Novel blue light filling lamp is prevented in study illumination | |
| CN219283166U (en) | Lamp set | |
| CN216131811U (en) | Lamp set | |
| CN220647994U (en) | Lighting lamp assembly with angle color change function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |