CN110242899A - A kind of special type lens and free from glare blackboard lamp illuminating system - Google Patents
A kind of special type lens and free from glare blackboard lamp illuminating system Download PDFInfo
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- CN110242899A CN110242899A CN201910582894.2A CN201910582894A CN110242899A CN 110242899 A CN110242899 A CN 110242899A CN 201910582894 A CN201910582894 A CN 201910582894A CN 110242899 A CN110242899 A CN 110242899A
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- blackboard
- concave surface
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- reflective concave
- special type
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- 230000004313 glare Effects 0.000 title claims abstract description 23
- 241001465382 Physalis alkekengi Species 0.000 claims description 32
- 238000009434 installation Methods 0.000 claims description 15
- 230000007246 mechanism Effects 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 238000009738 saturating Methods 0.000 claims description 2
- 238000005286 illumination Methods 0.000 abstract description 17
- 238000010586 diagram Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 210000002189 macula lutea Anatomy 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 229910003460 diamond Inorganic materials 0.000 description 2
- 239000010432 diamond Substances 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 208000001491 myopia Diseases 0.000 description 2
- 230000004379 myopia Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000000243 photosynthetic effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- F21S8/00—Lighting devices intended for fixed installation
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- 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
- F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
- F21V21/14—Adjustable mountings
-
- 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
- F21V7/00—Reflectors for light sources
- F21V7/0008—Reflectors for light sources providing for indirect lighting
-
- 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
- F21V7/00—Reflectors for light sources
- F21V7/04—Optical design
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- 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]
Abstract
The invention discloses a kind of special type lens and free from glare blackboard lamp illuminating systems, it is related to classroom illuminating device technical field, special type lens of the present invention include lenticular body, reflective concave surface is provided in lenticular body, reflective concave surface outer edge contour is in drops, the arc sections of reflective concave surface and tip are respectively in top and bottom, free from glare blackboard lamp illuminating system of the present invention includes several bar shaped reflectors positioned at blackboard oblique upper, bar shaped reflector is provided with several above-mentioned special type lens close to blackboard on one side, it further include the pcb board parallel with blackboard close to the setting of special type lens, several and special type lens one-to-one LED light sources of reflective concave surface are provided on pcb board, the present invention has structure simple, free from glare pollution, the good advantage of uniform illumination degree.
Description
Technical field
The present invention relates to classroom illuminating device technical fields, more particularly to a kind of special type lens and free from glare blackboard
Lamp illuminating system.
Background technique
For classroom, illumination is key points and difficulties therein, when teenager exactly grows up, if illumination effect
Fruit is not up to standard, is very likely to cause myopia.Nowadays adolescent myopia rate in China's increases year by year, and bad light " is difficult to decline it
Fault ".If educating light without reform, teen-age visual problems will persistently perplex everybody.In view of current campus classroom
The problems such as light source ages present in the single and common illuminator of intraoral illumination lamps and lanterns, lamps and lanterns pollution, room contamination, I
Should carry out certain change to existing illumination pattern.LED light source as emerging lighting apparatus at present, have high photosynthetic efficiency,
The series of advantages such as long-life, maintenance cost be low, be at present should research and development direction.
Due to concerning arrive student and teacher's eye health issues, classroom blackboard lamp illumination for uniformity, average illumination with
And glare requirement is very strict, and the average illumination of blackboard lights is generally required to be greater than 500lx, uniformity is greater than 0.7, and whole classroom is shone
Uniformity is greater than 0.8 in bright situation.Light-configuration mode is mainly lenticular lens, strip reflector or multiple lens groups at present
It closes, lens mode is not easily accomplished the requirement of uniformity, and is easy to appear macula lutea, causes dazzle, the reflection such as c-type or rectangle
Device uniformity is also not readily reachable by, and mainly the four of blackboard angle illumination is not easy to improve, and whole illumination uniformity is poor.
Therefore above-mentioned technical problem how is solved, there is very much realistic meaning to those skilled in the art.
Summary of the invention
It is an object of the invention to: in order to solve existing blackboard lights using lenticular lens, strip reflector or more
The structure of a lens combination, is easy to appear macula lutea, causes dazzle, and four angle illumination of blackboard are not easy to improve, whole light
According to the technical problem of uniformity difference, the present invention provides a kind of special type lens and free from glare blackboard lamp illuminating system.
The present invention specifically uses following technical scheme to achieve the goals above:
A kind of special type lens, including lenticular body, reflective concave surface is provided in lenticular body, and reflective concave surface outer edge contour is in water droplet
Shape, the arc sections of reflective concave surface and tip are respectively in top and bottom.
Further, reflective concave surface be whole smooth free form surface, and the curvature of reflective concave surface along from top to bottom, from
Two side ends are gradually increased to intermediate direction, and reflective concave surface bottom curvature is maximum.
Further, reflective concave surface is spliced by several blocky or strip free form surfaces, each blocky or strip
The equal concave or convex of the free form surface of shape.
A kind of free from glare blackboard lamp illuminating system, several bar shaped reflectors including being located at blackboard oblique upper, bar shaped are reflective
Bowl is provided with several above-mentioned special type lens close to blackboard on one side, further includes close to the parallel with blackboard of special type lens setting
Pcb board is provided on pcb board several with the special type lens one-to-one LED light sources of reflective concave surface.
Further, pcb board and bar shaped reflector have angle theta, -30 ° of θ=10 °.
Further, installation detent A is provided at the top of bar shaped reflector, the reflective bowl bottom of bar shaped is provided with screw installation
Portion, screw mounting portion bottom are provided with installation detent B.
Further, the material of bar shaped reflector is PC or ABS.
Further, the reflective bowl surface of bar shaped is coated with metallic reflective coating.
It further, further include lamps and lanterns for installing bar shaped reflector, lamps and lanterns are connected with positioned at the position of classroom inner top
Set regulating mechanism.
Further, position adjusting mechanism includes the sliding rail that classroom inner top is arranged in, and is equipped with sliding block on sliding rail,
Slider side end is connected with horizontal extension cylinder, and horizontal extension cylinder is connected to the side walls close to blackboard, and slider bottom is connected with perpendicular
Straight telescoping cylinder A and vertical telescoping cylinder B, the piston rod of the lower end vertical telescoping cylinder A are hinged at the top of lamps and lanterns, lamps and lanterns far from blackboard one
Side is connected with fixed plate, and the piston rod of the lower end vertical telescoping cylinder B is hinged in fixed plate.
Beneficial effects of the present invention are as follows:
1, the reflective concave surface of lenticular body is integrally in drops, and the arc sections of reflective concave surface and tip are separately positioned on
Light can be reflected into part under blackboard by lower end, reflective concave surface top half, and light can be reflected by reflective concave surface lower half portion
Part on blackboard, reflective concave surface up and down two extreme regions can reflection light four angles of blackboard rectangular area are illuminated, this is
The design for improving illumination uniformity most critical, greatly reduces macula lutea, free from glare, general lens are not easily accomplished.
2, reflective concave surface can be set to the free form surface of monoblock type, and each region amount of curvature relationship of reasonably optimizing, reach
Reflective concave surface can also be arranged to several blocky or strip free form surfaces and is spliced by good illumination uniformity, this
Structure is larger with respect to monoblock type Free-Form Surface Machining difficulty, needs finishing impression, and finishing impression processing capacity is big, but spliced free form surface can be with
Hot spot and more attractive is further homogenized, the free form surface of each fritter can be individually designed according to illuminance, is conducive to control light
Distribution.
3, special type lens by several with drops reflective concave surface are arranged on bar shaped reflector, then simultaneously by it is several this
The bar shaped reflector of sample is installed in lamps and lanterns, and lamp installation issues light in blackboard oblique upper, then by the LED light source on pcb board
Line is in reflective concave surface, and light intersects outgoing after reflective concave surface reflects, and uniform illumination blackboard, the uniformity can achieve 0.9
More than, while pcb board is parallel to blackboard installation, and the reflective bowl face of bar shaped, to blackboard, the light on pcb board is all by bar shaped reflector
It is reflected into blackboard, without backward light, avoids causing glare to academics and students.
4, pcb board and bar shaped reflector have angle theta, -30 ° of θ=10 °, and such light is handed over after reflective concave surface reflects
Fork outgoing irradiation blackboard, can't be blocked by pcb board, not influence light utilization, guarantee lighting effect.
5, lamp position can be adjusted by position adjusting mechanism, on the slide rail by horizontal extension cylinder band movable slider
Sliding, adjustable luminaire can drive lamps and lanterns to move up and down at a distance from blackboard, through vertical telescoping cylinder A, to adjust lamps and lanterns
Mounting height pushes or pull on fixed plate by vertical telescoping cylinder B, and lamps and lanterns can be driven with the hinged of vertical telescoping cylinder A and lamps and lanterns
Point is that center of rotation rotates, to adjust the setting angle of lamps and lanterns, realizes the comprehensive adjusting to lamp position, practicability
By force.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of special type lens of the present invention；
Fig. 2 is the schematic cross-sectional view in Fig. 1 at A-A；
Fig. 3 is the structural representation when reflective concave surface in the present invention is spliced by several blocky (diamond block) free form surfaces
Figure；
Fig. 4 is the structural representation when reflective concave surface in the present invention is spliced by several blocky (square) free form surfaces
Figure；
Fig. 5 is the structural schematic diagram when reflective concave surface in the present invention is spliced by several strip free form surfaces；
Fig. 6 is the schematic cross-sectional view in Fig. 3 at B-B；
Fig. 7 is the structural schematic diagram of another embodiment of Fig. 6；
Fig. 8 is a kind of light reflection direction distribution schematic diagram of free from glare blackboard lamp illuminating system of the present invention；
Fig. 9 is the structural schematic diagram of bar shaped reflector；
Figure 10 is the positive structure schematic of bar shaped reflector；
Figure 11 is a kind of structural schematic diagram of free from glare blackboard lamp illuminating system of the present invention；
Figure 12 is lamp installation reference by location schematic diagram；
Figure 13 is distribution map of the light of bar shaped reflector reflection on blackboard.
Appended drawing reference: 1- lenticular body, 2- reflective concave surface, 3- blackboard, 4- bar shaped reflector, 5-PCB plate, 6- install detent A,
7- screw mounting portion, 8- install detent B, 9- position adjusting mechanism, 9.1- sliding rail, 9.2- sliding block, 9.3- horizontal extension cylinder, 9.4-
The vertical telescoping cylinder vertical telescoping cylinder B of A, 9.5-, 9.6- fixed plate, 10- lamps and lanterns.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that described herein, specific examples are only used to explain the present invention, not
For limiting the present invention, i.e., described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is logical
The component for the embodiment of the present invention being often described and illustrated herein in the accompanying drawings can be arranged and be designed with a variety of different configurations.
Therefore, the detailed description of the embodiment of the present invention provided in the accompanying drawings is not intended to limit below claimed
The scope of the present invention, but be merely representative of selected embodiment of the invention.Based on the embodiment of the present invention, those skilled in the art
Member's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
It should be noted that the relational terms of term " first " and " second " or the like be used merely to an entity or
Operation is distinguished with another entity or operation, and without necessarily requiring or implying between these entities or operation, there are any
This actual relationship or sequence.Moreover, the terms "include", "comprise" or its any other variant be intended to it is non-exclusive
Property include so that include a series of elements process, method, article or equipment not only include those elements, but also
Further include other elements that are not explicitly listed, or further include for this process, method, article or equipment it is intrinsic
Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including described
There is also other identical elements in the process, method, article or equipment of element.
Feature and performance of the invention are described in further detail with reference to embodiments.
Embodiment 1
As shown in Fig. 1 to 7, the present embodiment provides a kind of special type lens, including lenticular body 1, reflection is provided in lenticular body 1
Concave surface 2,2 outer edge contour of reflective concave surface are in drops, and the arc sections of reflective concave surface 2 and tip are respectively in top and bottom.
Further, reflective concave surface 2 be whole smooth free form surface, and the curvature of reflective concave surface 2 along from top to bottom,
It is gradually increased from two side ends to intermediate direction, 2 bottom curvature of reflective concave surface is maximum.
Further, reflective concave surface 2 is spliced by several blocky or strip free form surfaces, each blocky or strip
The equal concave or convex of the free form surface of shape.
In the present embodiment, the whole reflective concave surface of lenticular body 12 is in drops, and by the arc sections of reflective concave surface 2 and tip
It is separately positioned on upper and lower side, light can be reflected into part under blackboard 3,2 lower half portion of reflective concave surface by 2 top half of reflective concave surface
Light can be reflected into part on blackboard 3, about 2 two extreme regions of reflective concave surface can reflection light by 3 rectangular area of blackboard
Four angles illuminate, this be improve illumination uniformity most critical design, greatly reduce macula lutea, free from glare, general lens are
It is not easily accomplished.Reflective concave surface 2 can be set to the free form surface (as illustrated in fig. 1 and 2) of monoblock type, and each region of reasonably optimizing
Amount of curvature relationship reaches good illumination uniformity, and reflective concave surface 2 can also be arranged to several blocky (as shown in figure 3 or 4)
Or the free form surface of strip (as shown in Figure 5) is spliced, this structure is larger with respect to monoblock type Free-Form Surface Machining difficulty,
Need finishing impression, finishing impression processing capacity is big, but spliced free form surface can further homogenize hot spot and more attractive, each fritter from
Can be individually designed according to illuminance by curved surface, be conducive to the distribution for controlling light.Here several blocky free form surfaces can
It is designed to diamond block (such as Fig. 3) or square (such as Fig. 4), several strip free form surfaces here are set according to amount of curvature inclination
It sets, and is bilateral symmetry, each Random Curved Surface Designing of splicing is at inner sunken face (such as Fig. 7) or convex outward (such as Fig. 6)
?.
Embodiment 2
As shown in Fig. 1 to 13, the present embodiment provides a kind of free from glare blackboard lamp illuminating systems, including be located at blackboard 3 tiltedly on
Several bar shaped reflectors 4 of side, bar shaped reflector 4 are provided with spy described in several above-described embodiments 1 close to blackboard 3 on one side
Type lens further include the pcb board 5 parallel with blackboard 3 close to the setting of special type lens, are provided on pcb board 5 several saturating with special type
The one-to-one LED light source of reflective concave surface 2 of mirror.
Further, pcb board 5 and bar shaped reflector 4 have angle theta, -30 ° of θ=10 °, and such light passes through reflective concave surface
Intersect outgoing irradiation blackboard 3 after 2 reflections, can't be blocked by pcb board 5, not influence light utilization, guarantee lighting effect.
Further, installation detent A6 is provided at the top of bar shaped reflector 4,4 bottom of bar shaped reflector is provided with screw peace
Dress portion 7,7 bottom of screw mounting portion are provided with installation detent B8, and bar shaped reflector 4 passes through installation detent A6,7 and of screw mounting portion
Installation detent B8 is installed on lamps and lanterns, and lamps and lanterns are hung on roof, easy for removal and installation.
Further, the material of bar shaped reflector 4 is PC or ABS, other applicable materials can also be used.
Further, 4 surface of bar shaped reflector is coated with metallic reflective coating, such as aluminizes.
It further, further include lamps and lanterns 10 for installing bar shaped reflector 4, lamps and lanterns 10 are connected with positioned at classroom inner top
Position adjusting mechanism 9, position adjusting mechanism 9 includes that the sliding rail 9.1 of classroom inner top is arranged in, and is equipped on sliding rail 9.1
There is sliding block 9.2,9.2 side of sliding block is connected with horizontal extension cylinder 9.3, and horizontal extension cylinder 9.3 is connected to the side wall close to blackboard 3
Wall, 9.2 bottom of sliding block are connected with vertical telescoping cylinder A9.4 and vertical telescoping cylinder B9.5, the piston rod of the lower end vertical telescoping cylinder A9.4
It is hinged on 10 top of lamps and lanterns, lamps and lanterns 10 are connected with fixed plate 9.6 far from a side of blackboard 3, the lower end vertical telescoping cylinder B9.5
Piston rod is hinged in fixed plate 9.6.
In the present embodiment, several special type lens with drops reflective concave surface 2 are arranged on bar shaped reflector 4, then
Several such bar shaped reflectors 4 are installed in lamps and lanterns 10 simultaneously, lamps and lanterns 10 are mounted on 3 oblique upper of blackboard, since blackboard 3 is long
Generally 4 meters x1.2 meters of degree, superposition is combined by multiple such units, a blackboard 3 installs 3 such 3 lamps of blackboard,
It is emitted beam in reflective concave surface 2 by the LED light source on pcb board 5, light intersects outgoing after the reflection of reflective concave surface 2,
Even to illuminate blackboard 3, the uniformity can achieve 0.9 or more, while pcb board 5 is parallel to the installation of blackboard 3, and bar shaped reflector 4 towards
Blackboard 3, the light on pcb board 5 are all reflected into blackboard 3 by bar shaped reflector 4, without backward light, avoid causing academics and students
Glare.As shown in figure 13, after carrying out reflection light using the bar shaped reflector 4 with several drops reflective concave surfaces 2, light distribution
Uniformly, and the illumination at 3 four angles of blackboard is improved, lamps and lanterns installation site in classroom can refer to Figure 12.
10 position of lamps and lanterns can be adjusted by position adjusting mechanism 9, by horizontal extension cylinder 9.3 with movable slider 9.2
It is slided on sliding rail 9.1, adjustable luminaire 10 can drive about 10 lamps and lanterns at a distance from blackboard 3, through vertical telescoping cylinder A9.4
It is mobile, to adjust the mounting height of lamps and lanterns 10, fixed plate 9.6 is pushed or pull on by vertical telescoping cylinder B9.5, lamp can be driven
Tool 10 is rotated by center of rotation of the hinge joint of vertical telescoping cylinder A9.4 and lamps and lanterns 10, so that the setting angle of lamps and lanterns 10 is adjusted,
The comprehensive adjusting to 10 position of lamps and lanterns is realized, it is practical.
The above, only presently preferred embodiments of the present invention, are not intended to limit the invention, patent protection model of the invention
It encloses and is subject to claims, it is all to change with equivalent structure made by specification and accompanying drawing content of the invention, similarly
It should be included within the scope of the present invention.
Claims (10)
1. a kind of special type lens, including lenticular body (1), which is characterized in that be provided with reflective concave surface (2), reflect in lenticular body (1)
Concave surface (2) outer edge contour is in drops, and the arc sections of reflective concave surface (2) and tip are respectively in top and bottom.
2. a kind of special type lens according to claim 1, which is characterized in that reflective concave surface (2) is the freedom of whole smooth
Curved surface, and the curvature of reflective concave surface (2) along from top to bottom, be gradually increased from two side ends to intermediate direction, reflective concave surface (2)
Bottom curvature is maximum.
3. a kind of special type lens according to claim 1, which is characterized in that reflective concave surface (2) is by several blocky or strips
The free form surface of shape is spliced, each blocky or strip equal concave or convex of free form surface.
4. a kind of free from glare blackboard lamp illuminating system, several bar shaped reflectors (4) including being located at blackboard (3) oblique upper are special
Sign is, bar shaped reflector (4) close to blackboard (3) to be provided with several special types as described in claims 1 or 2 or 3 on one side saturating
Mirror, further includes the pcb board (5) parallel with blackboard (3) close to the setting of special type lens, and pcb board is provided with several and special type on (5)
Reflective concave surface (2) one-to-one LED light source of lens.
5. a kind of free from glare blackboard lamp illuminating system according to claim 4, which is characterized in that pcb board (5) and strip-shaped inverted
Light bowl (4) has angle theta, -30 ° of θ=10 °.
6. a kind of free from glare blackboard lamp illuminating system according to claim 4 or 5, which is characterized in that bar shaped reflector (4)
Top is provided with installation detent A (6), and bar shaped reflector (4) bottom is provided with screw mounting portion (7), screw mounting portion (7) bottom
It is provided with installation detent B (8).
7. a kind of free from glare blackboard lamp illuminating system according to claim 6, which is characterized in that bar shaped reflector (4)
Material is PC or ABS.
8. a kind of free from glare blackboard lamp illuminating system according to claim 6, which is characterized in that bar shaped reflector (4) table
Face is coated with metallic reflective coating.
9. a kind of free from glare blackboard lamp illuminating system according to claim 6, which is characterized in that further include for mounting bar
The lamps and lanterns (10) of shape reflector (4), lamps and lanterns (10) are connected with the position adjusting mechanism (9) positioned at classroom inner top.
10. a kind of free from glare blackboard lamp illuminating system according to claim 9, which is characterized in that position adjusting mechanism (9)
Sliding rail (9.1) including classroom inner top is arranged in is equipped with sliding block (9.2) on sliding rail (9.1), sliding block (9.2) side
It is connected with horizontal extension cylinder (9.3), horizontal extension cylinder (9.3) is connected to the side walls close to blackboard (3), sliding block (9.2) bottom
Portion is connected with vertical telescoping cylinder A (9.4) and vertical telescoping cylinder B (9.5), and the piston rod of vertical telescoping cylinder A (9.4) lower end is hinged on
At the top of lamps and lanterns (10), lamps and lanterns (10) are connected with fixed plate (9.6) far from a side of blackboard (3), under vertical telescoping cylinder B (9.5)
The piston rod at end is hinged on fixed plate (9.6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910582894.2A CN110242899A (en) | 2019-06-28 | 2019-06-28 | A kind of special type lens and free from glare blackboard lamp illuminating system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910582894.2A CN110242899A (en) | 2019-06-28 | 2019-06-28 | A kind of special type lens and free from glare blackboard lamp illuminating system |
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| CN110242899A true CN110242899A (en) | 2019-09-17 |
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|---|---|---|---|
| CN201910582894.2A Pending CN110242899A (en) | 2019-06-28 | 2019-06-28 | A kind of special type lens and free from glare blackboard lamp illuminating system |
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| CN113007638A (en) * | 2021-03-11 | 2021-06-22 | 苏州欧普照明有限公司 | Wall washing lamp |
| EP3889497A1 (en) * | 2020-04-01 | 2021-10-06 | Molto Luce GmbH | Device with a light arranged above a work surface |
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|---|---|---|---|---|
| EP3889497A1 (en) * | 2020-04-01 | 2021-10-06 | Molto Luce GmbH | Device with a light arranged above a work surface |
| CN113007638A (en) * | 2021-03-11 | 2021-06-22 | 苏州欧普照明有限公司 | Wall washing lamp |
| CN113007638B (en) * | 2021-03-11 | 2023-02-17 | 苏州欧普照明有限公司 | Wall washing lamp |
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Address after: No.159, Tengfei 2nd Road, Southwest Airport Economic Development Zone, Shuangliu District, Chengdu Applicant after: CHENGDU HAN DE SHENG BANG OPTICAL Co.,Ltd. Address before: 610200 Southwest Airport Economic Development Zone, Shuangliu District, Chengdu City, Sichuan Province, No. 159 Tengfei No. 2 Road Applicant before: CHENGDU HAN DE SHENG BANG OPTICAL Co.,Ltd. |