CN105739114B - Anti- blackboard reflective light device - Google Patents
Anti- blackboard reflective light device Download PDFInfo
- Publication number
- CN105739114B CN105739114B CN201610257392.9A CN201610257392A CN105739114B CN 105739114 B CN105739114 B CN 105739114B CN 201610257392 A CN201610257392 A CN 201610257392A CN 105739114 B CN105739114 B CN 105739114B
- Authority
- CN
- China
- Prior art keywords
- polarizing film
- reflective light
- light device
- supporting rack
- fixed plate
- 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.)
- Expired - Fee Related
Links
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 11
- 238000000034 method Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000004438 eyesight Effects 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 230000010287 polarization Effects 0.000 description 2
- 208000003464 asthenopia Diseases 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/28—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising
- G02B27/281—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising used for attenuating light intensity, e.g. comprising rotatable polarising elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
- B43L1/00—Repeatedly-usable boards or tablets for writing or drawing
- B43L1/04—Blackboards
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Drawing Aids And Blackboards (AREA)
Abstract
The present invention provides a kind of anti-blackboard reflective light devices, are related to teaching equipment field, and the anti-blackboard reflective light device includes hold-down support, swivel mount, polarizing film supporting rack and two polarizing films；Two polarizing films are arranged in parallel, one of them described polarizing film and the polarizing film supporting rack are affixed, another described polarizing film is rotatablely connected with the polarizing film supporting rack；The polarizing film supporting rack is rotatablely connected with the hold-down support；The polarizing film supporting rack is abutted with the swivel mount；The hold-down support and the swivel mount are respectively used to affixed with wall.The anti-blackboard reflective light device of the application, solves the technical issues of blackboard reflective light in the prior art causes student that cannot normally learn.
Description
Technical field
The present invention relates to teaching aid technical fields, more particularly, to a kind of anti-blackboard reflective light device.
Background technology
Present middle and primary schools classroom is imparted knowledge to students generally or using blackboard and chalk, and blackboard is located at the front in classroom,
By teacher in top writing and teaching content, student is watching below.However, the surface due to blackboard is more smooth, attend class in classroom
Classmate often have such impression, in the case where sunlight intensity is larger, bright especially in summer in light, dazzling is strong
It spends higher sunlight to slant into after classroom by window, often be formed on blackboard reflective.
Student often can not see word on blackboard when looking at the blackboard because light somewhere is too strong.Especially by
On the seat of window, sun light direct beam desktop, by other side natural light, caused veiling reflection is even more serious on blackboard, not only
It influences student to attend class efficiency, prevents student from normally learning, can also aggravate the visual fatigue of student for a long time, to the eyesight of student
It causes to damage.
In order to reduce reflective influence, classmates can usually pull on curtain, to obtain better visual effect, however this
Kind method but wastes lamp to a certain extent.The existing product for eliminating blackboard reflective light, is essentially all in blackboard
On do some improvement, but it is not highly desirable in the effect for eliminating blackboard reflective light.
Based on this, the present invention provides a kind of anti-blackboard reflective light devices to solve the above technical problems.
Invention content
It is an object of the invention to avoid the deficiencies in the prior art, a kind of anti-blackboard reflective light device is provided, it is existing to solve
The technical issues of blackboard reflective light present in technology causes student that cannot normally learn simply and effectively eliminates blackboard reflective light to learning
The influence of raw eyesight.
Anti- blackboard reflective light device provided by the invention, including hold-down support, swivel mount, polarizing film supporting rack and two polarizations
Piece；
Two polarizing films are arranged in parallel, one of them described polarizing film and the polarizing film supporting rack are affixed, another
A polarizing film is rotatablely connected with the polarizing film supporting rack；
The polarizing film supporting rack is rotatablely connected with the hold-down support；
The polarizing film supporting rack is abutted with the swivel mount；
The hold-down support and the swivel mount are respectively used to affixed with wall.
Optionally, two polarizing films are in disk form, and a circle scale is both provided on two polarizing films.
Scale is set on polarizing film, be for adjustment more rapidly.It, may be back and forth according to light intensity polarizing film when starting
Rotation can just find suitable angle and meet needs.After some time of use, for daily each period polarizing film
Needing the angle being adjusted to substantially has understanding, and after this, when needing to adjust polarizing film, scale as needed directly turns
Dynamic certain angle, adjusts more convenient and quicker, saves adjustment time.
Optionally, the polarizing film supporting rack includes external part and pedestal, and setting is there are two arc groove on the pedestal, and two
A polarizing film is respectively placed in two arc grooves；One end of the external part is rotatablely connected with the hold-down support,
The other end and the pedestal are affixed, and the middle part of the external part is abutted with the swivel mount.
Polarizing film is placed by arc groove, using simple, it is convenient to place, and rotation is also easy, and is also convenient for packing up and removing partially
Shake piece.External part realizes the rotation connection with hold-down support as connection structure.It is of course also possible to use realizing otherwise
Polarizing film is placed, for example, holder is arranged on pedestal, polarizing film is connect by central shaft with holder pivots.These modes exist
Within the protection domain of the application.
Optionally, the hold-down support includes central shaft and fixed plate；The fixed plate is used for affixed with wall；In described
Mandrel end section and the fixed plate are affixed, and the middle part of the central shaft is rotatablely connected with the external part.
It is rotatablely connected by central shaft and external part, easy to connect, overall structure is simple, easy to process, and saving is processed into
This.
Optionally, the fixed plate is provided centrally with screw hole, and the central shaft is double threaded screw；The end of the external part
It is provided with through-hole, one end of the double threaded screw is spirally connected across the through-hole with the fixed plate, and the other end is provided with nut.
The mode being screwed is fixed simply, convenient for disassembly and assembly, is suitble to big batch processing, is saved processing cost.
Optionally, multiple hole for the expansion bolt are additionally provided in the fixed plate, the fixed plate passes through expansion bolt and wall
Wall is fixed.
The fixed plate is fixed by using expansion bolt, fixed more secured, fixed plate is not easy to fall off.
Optionally, the fixed plate is circle, and multiple hole for the expansion bolt are uniform around the central shaft of the fixed plate
Distribution.
Equally distributed expansion bolt makes fixed plate stress evenly, it is not easy to and wall is destroyed, ensures the stability of wall,
It is not easily to fall off.Preferably, the swivel mount includes riser and level board, and the riser with wall for fixing, the level board
It is placed perpendicular to the riser；The level board is abutted with the external part.
Horizontal positioned level board makes external part be in horizontal position, plays the fixed work of support for holding external part
With.Certainly, other modes that swivel mount can also use, for example, hook form etc., in the protection domain of the application
It is interior.
Optionally, the level board and the riser are rotatablely connected, and are provided with hook on the level board, the hook and
The riser is detachably connected, for keeping the level board horizontal positioned.
The level board is rotatablely connected with the riser, when without using the present apparatus, you can is packed up the present apparatus, is prevented
The level board only protruded is damaged classmates.It is linked up with by being arranged, level board can be hung on vertical plate, keep horizontality, from
And play the role of holding external part.
Optionally, the level board is rotatablely connected by rotation axis and the riser.
It is machined with rectangular channel in riser bottom, both ends process screw thread, and tablet side is provided with cylinder, and cylinder is in rectangular channel
Interior, rotation axis passes through the riser and cylinder, and the riser and the level board is made to be rotatablely connected by the rotation axis.Rotation
Axis both ends can be threaded, and be fixed by nut.The mode of rotation axis rotation connection is easier to realize, process simple.
The anti-blackboard reflective light device provided by the invention selects suitable installation position before use, being debugged before window
It sets, polarizing film is enable to weaken into the indoor light intensity of religion.Then, the hold-down support and swivel mount are fixed on wall
On.When in use, the polarizing film supporting rack is turned into horizontal position, so that two polarizing films is located at suitable in front of window
Position.The polarizing film supporting rack is held by the swivel mount, before being positioned over window.Rotation adjusts polarizing film, makes window
The sunlight that family penetrates is weakened through polarizing film, to weaken the reflective degree of blackboard.It is not needing in use, removing polarization
Piece, rotates the polarizing film supporting rack, and retracting device does not influence the normal entering light of window.Polarizing film is rotatable, can cope with not
With the entering light demand of period varying strength, can be adjusted as needed.
The anti-blackboard reflective light device provided by the invention, by the way that polarizing film is arranged before window, to weaken window
Entering light, so that the reflective degree of blackboard weakens so that student can see blackboard clearly in study, normal to learn, and improve and learn
Raw efficiency of attending class.And it is simple in structure easy to use, it can pack up at any time, not influence natural lighting.
Based on this, compared with original technology, blackboard reflective light can be weakened and roll out the present invention by having, and not influence normally to adopt
The advantage of light.
Description of the drawings
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, in being described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, other drawings may also be obtained based on these drawings.
Fig. 1 is the front view of anti-blackboard reflective light device provided in an embodiment of the present invention；
Fig. 2 is the general structure schematic diagram of anti-blackboard reflective light device provided in an embodiment of the present invention；
Fig. 3 is the structural schematic diagram of swivel mount provided in an embodiment of the present invention.
Reference numeral：
1- hold-down supports；2- swivel mounts；3- polarizing film supporting racks；
4- polarizing films；11- central shafts；12- fixed plates；
21- risers；22- level boards；23- is linked up with；
24- rotation axis；25- rectangular channels；26- cylinders；
31- external parts；32- pedestals；33- arc grooves；
41- scales.
Specific implementation mode
Technical scheme of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
The every other embodiment that personnel are obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term "center", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for the description present invention and simplify description, do not indicate or imply the indicated device or element must have a particular orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for description purposes only, and is not understood to indicate or imply relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
Can also be electrical connection to be mechanical connection；It can be directly connected, can also indirectly connected through an intermediary, Ke Yishi
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
Embodiment one
Fig. 1 is the front view of anti-blackboard reflective light device provided in an embodiment of the present invention.As shown in Figure 1, in the present embodiment
A kind of anti-blackboard reflective light device is provided, the anti-blackboard reflective light device includes hold-down support 1, swivel mount 2, polarizing film supporting rack
3 and two polarizing films 4；
Two polarizing films 4 are arranged in parallel, one of them described polarizing film 4 and the polarizing film supporting rack 3 are affixed, separately
One polarizing film 4 is rotatablely connected with the polarizing film supporting rack 3；
The polarizing film supporting rack 3 is rotatablely connected with the hold-down support 1；
The polarizing film supporting rack 3 is abutted with the swivel mount 2；
The hold-down support 1 and the swivel mount 2 are respectively used to affixed with wall.
The anti-blackboard reflective light device provided by the invention selects suitable installation position before use, being debugged before window
It sets, polarizing film 4 is enable to weaken into the indoor light intensity of religion.Then, the hold-down support 1 and swivel mount 2 are fixed on
On wall.When in use, the polarizing film supporting rack 3 is turned into horizontal position, before two polarizing films 4 are placed in window
Square suitable position.The polarizing film supporting rack 3 is supported by the swivel mount 2.Rotation adjusts polarizing film 4, and window is made to penetrate too
Sunlight is weakened through polarizing film 4, to weaken the reflective degree of blackboard.It is not needing in use, remove polarizing film, is rotating institute
Polarizing film supporting rack 3 is stated, retracting device does not influence the normal entering light of window.Polarizing film 4 is rotatable, can cope with different periods
The entering light demand of varying strength, can be adjusted as needed.
The anti-blackboard reflective light device provided by the invention, by the way that polarizing film 4 is arranged before window, to weaken window
Entering light, so that the reflective degree of blackboard weakens so that student can see blackboard clearly in study, normal to learn, and improve and learn
Raw efficiency of attending class.And it is simple in structure easy to use, it can pack up at any time, not influence natural lighting.
Based on this, compared with original technology, blackboard reflective light can be weakened and roll out the present invention by having, and not influence normally to adopt
The advantage of light.
Fig. 2 is the structural schematic diagram of anti-blackboard reflective light device provided in an embodiment of the present invention；Fig. 3 carries for the embodiment of the present invention
The structural schematic diagram of the swivel mount of confession.Such as Fig. 1-3, in the alternative of the present embodiment, two polarizing films 4 are in disk
Shape is both provided with a circle scale 41 on two polarizing films 4.
On polarizing film 4 be arranged scale 41, be for adjustment more rapidly.It, may according to light intensity polarizing film 4 when starting
Carry out back rotation just and can find suitable angle to meet needs.After some time of use, inclined for daily each period
The piece 4 that shakes needs the angle that is adjusted to substantially to have understandings, after this, when needing adjustment polarizing film 4, and scale as needed
It directly turns an angle, adjusts more convenient and quicker, save adjustment time.
Further, the polarizing film supporting rack 3 includes external part 31 and pedestal 32, on the pedestal 32 there are two settings
Arc groove 33, two polarizing films 4 are respectively placed in two arc grooves 33；One end of the external part 31 with it is described solid
Determine the rotation connection of bearing 1, the other end and the pedestal 32 are affixed, and the middle part of the external part 31 is abutted with the swivel mount 2.
Polarizing film 4 is placed by arc groove 33, using simple, it is convenient to place, and rotation is also easy, and is also convenient for packing up and be removed
Polarizing film 4.External part 31 is used as connection structure, realizes the rotation connection with hold-down support 1.It is of course also possible to use other side
Formula, which is realized, places polarizing film 4, for example, holder is arranged on pedestal 32, polarizing film 4 is connect by central shaft 11 with holder pivots.
These modes are within the protection domain of the application.
Further, the hold-down support 1 includes central shaft 11 and fixed plate 12；The fixed plate 12 is used for solid with wall
It connects；11 end of the central shaft and the fixed plate 12 are affixed, and the middle part of the central shaft 11 connects with the rotation of the external part 31
It connects.
It is rotatablely connected by central shaft 11 and external part 31, easy to connect, overall structure is simple, easy to process, saves and adds
Work cost.
Further, the fixed plate 12 is provided centrally with screw hole, and the central shaft 11 is double threaded screw；The external part
31 end set has through-hole, one end of the double threaded screw to be spirally connected with the fixed plate 12 across the through-hole, and the other end is set
It is equipped with nut, the outer diameter of nut is more than the internal diameter of through-hole, prevents external part from falling off.
The mode being screwed is fixed simply, convenient for disassembly and assembly, is suitble to big batch processing, is saved processing cost.
Preferably, multiple hole for the expansion bolt are additionally provided in the fixed plate 12, the fixed plate 12 passes through expansion bolt
It is fixed with wall.
The fixed plate 12 is fixed by using expansion bolt, fixed more secured, fixed plate 12 is not easy to fall off.
Further, the fixed plate 12 is circle, and multiple hole for the expansion bolt surround the center of the fixed plate 12
Axis 11 is uniformly distributed.
Equally distributed expansion bolt makes 12 stress of fixed plate evenly, it is not easy to destroy wall, ensure the stabilization of wall
Property, it is not easily to fall off.
Preferably, the swivel mount 2 includes riser 21 and level board 22, and the riser 21 is described for being fixed with wall
Level board 22 is placed perpendicular to the riser 21；The level board 22 is abutted with the external part 31.
Horizontal positioned level board 22 makes external part 31 be in horizontal position, it is solid to play support for holding external part 31
Fixed effect.Certainly, swivel mount 2 can also in other manners, such as hook form etc., in the protection of the application
In range.
Further, the level board 22 is rotatablely connected with the riser 21, and hook 23 is provided on the level board 22,
The hook 23 is detachably connected with the riser 21, for keeping the level board 22 horizontal positioned.
The level board 22 is rotatablely connected with the riser 21, when without using the present apparatus, you can receive the present apparatus
It rises, prevents the level board 22 of protrusion from damaging classmates.By the way that hook 23 is arranged, level board 22 can be hung on vertical plate, be kept
Horizontality, to play the role of holding external part 31.
Further, the level board 22 is rotatablely connected by rotation axis 24 and the riser 21.
It is machined with rectangular channel 25 in 21 bottom of riser, both ends process screw thread, and tablet side is provided with cylinder 26, at cylinder 26
In in rectangular channel 25, rotation axis 24 passes through the riser 21 and cylinder 26, and the riser 21 and the level board 22 is made to pass through institute
State the rotation connection of rotation axis 24.24 both ends of rotation axis can be threaded, and be fixed by nut.The side that rotation axis 24 is rotatablely connected
Formula is easier to realize, process simple.
Finally it should be noted that：The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Present invention has been described in detail with reference to the aforementioned embodiments for pipe, it will be understood by those of ordinary skill in the art that：Its according to
So can with technical scheme described in the above embodiments is modified, either to which part or all technical features into
Row equivalent replacement；And these modifications or replacements, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (10)
1. a kind of anti-blackboard reflective light device, which is characterized in that partially including hold-down support, swivel mount, polarizing film supporting rack and two
Shake piece；
Two polarizing films are arranged in parallel, one of them described polarizing film and the polarizing film supporting rack are affixed, another institute
Polarizing film is stated to be rotatablely connected with the polarizing film supporting rack；
The polarizing film supporting rack is rotatablely connected with the hold-down support；
The polarizing film supporting rack is abutted with the swivel mount；
The hold-down support and the swivel mount are respectively used to affixed with wall.
2. anti-blackboard reflective light device according to claim 1, which is characterized in that two polarizing films are in disk form,
A circle scale is both provided on two polarizing films.
3. anti-blackboard reflective light device according to claim 2, which is characterized in that the polarizing film supporting rack includes external part
And pedestal, there are two arc grooves, two polarizing films to be respectively placed in two arc grooves for setting on the pedestal；It is described
One end of external part is rotatablely connected with the hold-down support, and the other end and the pedestal are affixed, the middle part of the external part and institute
State swivel mount abutting.
4. anti-blackboard reflective light device according to claim 3, which is characterized in that the hold-down support includes central shaft and consolidates
Fixed board；The fixed plate is used for affixed with wall；The center shaft end and the fixed plate are affixed, the middle part of the central shaft
It is rotatablely connected with the external part.
5. anti-blackboard reflective light device according to claim 4, which is characterized in that the fixed plate is provided centrally with screw hole,
The central shaft is double threaded screw；The end set of the external part has through-hole, one end of the double threaded screw to pass through described lead to
Hole is spirally connected with the fixed plate, and the other end is provided with nut.
6. anti-blackboard reflective light device according to claim 4, which is characterized in that be additionally provided in the fixed plate multiple swollen
Swollen bolt hole, the fixed plate are fixed by expansion bolt and wall.
7. anti-blackboard reflective light device according to claim 6, which is characterized in that the fixed plate is circle, multiple described
Hole for the expansion bolt is uniformly distributed around the central shaft of the fixed plate.
8. anti-blackboard reflective light device according to claim 3, which is characterized in that the swivel mount includes riser and level
Plate, the riser for being fixed with wall, perpendicular to the riser place by the level board；The level board and the external part
It abuts.
9. anti-blackboard reflective light device according to claim 8, which is characterized in that the level board connects with riser rotation
It connects, hook is provided on the level board, the hook is detachably connected with the riser, for keeping the horizontal plate level
It places.
10. anti-blackboard reflective light device according to claim 9, which is characterized in that the level board passes through rotation axis and institute
State riser rotation connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610257392.9A CN105739114B (en) | 2016-04-22 | 2016-04-22 | Anti- blackboard reflective light device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610257392.9A CN105739114B (en) | 2016-04-22 | 2016-04-22 | Anti- blackboard reflective light device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105739114A CN105739114A (en) | 2016-07-06 |
| CN105739114B true CN105739114B (en) | 2018-07-31 |
Family
ID=56254945
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610257392.9A Expired - Fee Related CN105739114B (en) | 2016-04-22 | 2016-04-22 | Anti- blackboard reflective light device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105739114B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2490916Y (en) * | 2001-07-06 | 2002-05-15 | 高延鹏 | Sunshade extension rack for blackboard |
| CN2752068Y (en) * | 2004-11-24 | 2006-01-18 | 上海市向明中学 | Shading plate for preventing blackboard reflecting light |
| CN201654342U (en) * | 2010-04-29 | 2010-11-24 | 张恩 | Special mirror for preventing light reflection of blackboard |
| CN201903703U (en) * | 2010-11-24 | 2011-07-20 | 信义玻璃工程（东莞）有限公司 | Glass device for regulating strength of light rays |
| CN202480834U (en) * | 2012-02-28 | 2012-10-10 | 浙江吉利汽车研究院有限公司 | Light strength adjusting device for automobile window |
| CN203022597U (en) * | 2012-12-14 | 2013-06-26 | 张鹏 | Light-shielding board |
| CN103303460A (en) * | 2013-07-02 | 2013-09-18 | 蒋光强 | Stepless light-transmittance regulation device of aircraft porthole |
| CN205539753U (en) * | 2016-04-22 | 2016-08-31 | 谢宗奇 | Prevent blackboard reflex reflector |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080224588A1 (en) * | 2007-03-12 | 2008-09-18 | Lucas Pai | Chassis assembly structure of a griller |
| JP2011134472A (en) * | 2009-12-22 | 2011-07-07 | Panasonic Electric Works Co Ltd | Lighting fixture with tiltable lamp |
-
2016
- 2016-04-22 CN CN201610257392.9A patent/CN105739114B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2490916Y (en) * | 2001-07-06 | 2002-05-15 | 高延鹏 | Sunshade extension rack for blackboard |
| CN2752068Y (en) * | 2004-11-24 | 2006-01-18 | 上海市向明中学 | Shading plate for preventing blackboard reflecting light |
| CN201654342U (en) * | 2010-04-29 | 2010-11-24 | 张恩 | Special mirror for preventing light reflection of blackboard |
| CN201903703U (en) * | 2010-11-24 | 2011-07-20 | 信义玻璃工程（东莞）有限公司 | Glass device for regulating strength of light rays |
| CN202480834U (en) * | 2012-02-28 | 2012-10-10 | 浙江吉利汽车研究院有限公司 | Light strength adjusting device for automobile window |
| CN203022597U (en) * | 2012-12-14 | 2013-06-26 | 张鹏 | Light-shielding board |
| CN103303460A (en) * | 2013-07-02 | 2013-09-18 | 蒋光强 | Stepless light-transmittance regulation device of aircraft porthole |
| CN205539753U (en) * | 2016-04-22 | 2016-08-31 | 谢宗奇 | Prevent blackboard reflex reflector |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105739114A (en) | 2016-07-06 |
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