CN215446229U - Lamp for classroom - Google Patents
Lamp for classroom Download PDFInfo
- Publication number
- CN215446229U CN215446229U CN202120800673.0U CN202120800673U CN215446229U CN 215446229 U CN215446229 U CN 215446229U CN 202120800673 U CN202120800673 U CN 202120800673U CN 215446229 U CN215446229 U CN 215446229U
- Authority
- CN
- China
- Prior art keywords
- lamp
- light
- frame
- dazzle
- middle connecting
- 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.)
- Active
Links
Images
Landscapes
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The utility model provides a lamp for a classroom, which comprises a lamp body, wherein the lamp body comprises a shell, a light-emitting unit, a long frame, a short frame, two symmetrically arranged middle connecting frames, a first anti-dazzle plate and a second anti-dazzle plate; the two middle connecting frames are respectively and fixedly connected to the two short frames and are symmetrically arranged; the light-emitting unit is arranged on one side of the shell close to the cavity; the number of the first anti-dazzle plates is two, the first anti-dazzle plates are obliquely arranged between the long frame and the middle connecting frame, one end of each first anti-dazzle plate is connected with the long frame, the other end of each first anti-dazzle plate is connected with the middle connecting frame, and the height of one end, close to the middle connecting frame, of each first anti-dazzle plate is higher than that of the other end of each first anti-dazzle plate; the second anti-dazzle plate is arranged between the two middle connecting frames; the utility model has the advantages of high illuminance uniformity and good anti-dazzle effect.
Description
Technical Field
The utility model relates to the field of indoor lighting, in particular to a lamp for a classroom.
Background
At present, the light luminance in the classroom of school is too high or low for the luminance in the classroom is than great with the luminance difference in reading the field of vision, makes student's eyes produce the phenomenon of glare, and current anti-dazzle lamp is mostly not good to the scattering treatment effect of light, and does not possess the scattering that comes the regulation light according to the light intensity outside the classroom, and then produces the influence to student's eye health.
In order to solve the above technical problems, a novel anti-glare eye-protecting lamp for classroom is disclosed in the patent document with the Chinese patent application number of 201921587932.5 and the publication date of 2020.03.31, and comprises a shell, a long frame, a short frame, a grid and a diffusion plate; a plurality of LED lamp belts are arranged in the shell and used as light sources; the long edge of the shell is connected with the long frame; the short side of the shell is connected with the short frame; the diffusion plate is fixed in the shell and is positioned on the opposite side of the LED lamp strip; the grid grids are fixed by the long frames and the short frames. The utility model has the beneficial effects that: the surface of the diffusion plate is frosted, disordered refraction of light rays is facilitated, and the light rays of the light source are refracted by the diffusion plate and then are emitted out through the rhombic grids of the grid grids, so that the glare effect is further reduced.
However, according to the technical solution disclosed in this document, after the LED lamp emits light, the light is refracted by the diffusion plate and then emitted through the rhombic grids of the grid grating, which only alleviates the problem of glare to a certain extent.
However, as shown in fig. 1, in the LED lamp in the prior art, the adjacent light sources are arranged at intervals on the circuit board 3a, so that the light rays 4a superimposed between the adjacent light sources 1a on the circuit board 3a are less, which results in a dark gap 2a between the light sources, and the light rays emitted from the light sources 1a are not uniformly irradiated on the diffusion plate, so that the uniformity of the illuminance of the lamp is not high, and meanwhile, the light sources at the edge side of the lamp have a lamp frame or frameless shielding reflection effect, so that the high-angle light on the side surface emitted from the lamp is more, so that the light at the edge of the lamp is brighter, and the glaring effect is easily caused to human eyes.
Disclosure of Invention
The ceiling lamp with the structure has high illuminance uniformity, makes human eyes feel more comfortable, reduces harm to the human eyes, and has a good anti-glare effect.
In order to achieve the purpose, the technical scheme of the utility model is as follows: a lamp for classrooms comprises a lamp body, a support and a hanging rod for mounting the lamp body, wherein the support is fixedly mounted at the top of the lamp body, the hanging rod is fixedly connected with the support, and the lamp body comprises a shell, a light-emitting unit, a long frame, a short frame, two symmetrically arranged middle connecting frames, a first anti-dazzle plate and a second anti-dazzle plate;
the long side of the shell is fixedly connected with the long frame, the short side of the shell is fixedly connected with the short frame, and the shell, the long frame and the short frame form a cavity; the long frame and the short frame are fixedly connected at the connecting part; the two middle connecting frames are respectively and fixedly connected to the two short frames and are symmetrically arranged; the light-emitting unit is arranged on one side of the shell close to the cavity;
the first anti-dazzle plates are obliquely arranged between the long frame and the middle connecting frame, and the horizontal height of one end, close to the middle connecting frame, of each first anti-dazzle plate is higher than that of the other opposite end; the second antiglare shield is arranged between the two middle connecting frames.
According to the arrangement, when the light emitting unit on the shell emits light, light rays irradiate on the first anti-dazzle plate and the second anti-dazzle plate, the first anti-dazzle plate is obliquely arranged between the long frame and the middle connecting frame, and when the light rays pass through the first anti-dazzle plate and the second anti-dazzle plate, the first anti-dazzle plate and the second anti-dazzle plate restrain partial side high-angle light rays and reduce light emitting angles of the side high-angle light rays, so that partial ineffective light rays which are positioned at the edge of a lamp and easily cause glare are converted into effective light rays, and the illumination uniformity is improved; meanwhile, side high-angle light which can cause glare of human eyes is reduced, so that the anti-glare effect is improved, and the human eyes feel more comfortable; the fatigue of human eyes is not easy to cause, and the harm to the human eyes is reduced.
Furthermore, one end of the first anti-dazzle plate is connected with the long frame, and the other end of the first anti-dazzle plate is connected with the middle connecting frame.
Furthermore, a first sliding groove is formed in one side, close to the middle connecting frame, of the long frame, a second sliding groove is formed in one side, close to the long frame, of the middle connecting frame, the height of the second sliding groove is higher than that of the first sliding groove, one end of the first anti-dazzle plate is arranged in the first sliding groove, and the other end of the first anti-dazzle plate is arranged in the second sliding groove;
the long frame is provided with a first process groove which is arranged in a concave manner at one side far away from the middle connecting frame, and the first process groove is arranged along the length direction of the long frame; the top of the long frame is sunken downwards at one side close to the middle connecting frame to form a mounting step; the long frame is arranged on the mounting step and extends inwards and upwards to form a second process groove towards the upper end of one side close to the middle connecting frame;
the top of the short frame is provided with a mounting plate extending towards the middle connecting frame, and the mounting plate is provided with a mounting hole site; according to the arrangement, when the first anti-dazzle plate is installed, the first anti-dazzle plate can slide along the first sliding groove and the second sliding groove, so that the installation of the first anti-dazzle plate can be completed, and the installation is simple and convenient; when the shell is connected with the long frame, the long edge of the shell is connected with the second process groove on the mounting step, so that the mounting step can play a role in limiting and guiding the shell, and the mounting is convenient; when the shell is connected with the short frame, the short edge of the shell is fixedly connected with the mounting plate at the top of the short frame, and the short frame is fixedly connected with the short edge of the shell through the mounting hole, so that the mounting is simple, convenient and stable.
Furthermore, a first limiting piece is correspondingly and obliquely arranged on the first anti-dazzle plate on one side of the short frame close to the cavity; the short frame is provided with a second limiting piece at a position corresponding to the second anti-dazzle plate at one side close to the cavity, so that the first limiting piece can prevent the first anti-dazzle plate from shaking, and the first anti-dazzle plate is more stable; the second locating part can prevent the second antiglare shield from shaking, and the second antiglare shield is more stable.
Furthermore, the light-emitting unit comprises lamp beads and an optical lens for improving the light-emitting angle of the lamp beads, and the light-emitting units are uniformly distributed on one side of the shell, which is far away from the suspender; the lamp beads comprise more than one high-color-temperature lamp bead and more than one low-color-temperature lamp bead, the high-color-temperature lamp beads and the low-color-temperature lamp beads are alternately arranged, and optical lenses are respectively arranged on the high-color-temperature lamp beads and the low-color-temperature lamp beads; high colour temperature lamp pearl and low colour temperature lamp pearl proportion among the luminescence unit are 1: 1; above setting, high color temperature lamp pearl and low color temperature lamp pearl launch the light of high color temperature and the light of low color temperature respectively, simultaneously, because light emitting unit is equipped with high color temperature lamp pearl and low color temperature lamp pearl respectively for the light colour temperature that sends is even, makes people's eye feel more comfortable, is difficult for producing fatigue.
Further, the light outlet angle of the optical lens is more than 150 degrees, and the distance between the highest position of the first anti-dazzle plate and the light-emitting unit is more than 30 mm; the distance between the highest position of the second anti-dazzle plate and the light-emitting unit is more than 30 mm; like this, under this distance, can prevent to appear the highlight facula condition when leading to the light-emitting because the too near of first antiglare shield of luminescence element distance and second antiglare shield, also prevent simultaneously because the too far condition of dark space that leads to the uneven condition of light-emitting takes place that leads to of the glare shield of luminescence element distance.
Further, the shell top is equipped with more than one light trap, light trap intercommunication cavity, and like this, the lamp body top is originally darker ceiling and is lighted, and indoor light environment does not have the dark space, reduces indoor obvious light and shade contrast for people's eye visual sensation is more comfortable.
Further, the first anti-dazzle plate and the second anti-dazzle plate are micro-nano structure anti-dazzle plates, and the light emergent range of the micro-nano structure anti-dazzle plates is 85-95 degrees; through the arrangement, the light-emitting angle of the micro-nano structure anti-dazzle plate is smaller, the side high-angle light effect is better inhibited, the side high-angle light causing glare is reduced, and the anti-dazzle effect is better.
Furthermore, the included angle between the first anti-dazzle plate and the horizontal plane is 1-10 degrees, and the anti-dazzle effect is better due to the arrangement.
Further, first antiglare shield and second antiglare shield are equipped with the diffuser plate in the one side that is close to the lamp pearl, like this, further improve the anti-dazzle effect of lamp body.
Drawings
Fig. 1 is a schematic diagram of an optical path of the structure mentioned in the background art.
Fig. 2 is a schematic structural diagram of the present invention.
Fig. 3 is a schematic top view of the present invention.
Fig. 4 is a schematic sectional view of the lamp body according to the present invention.
Fig. 5 is a partially enlarged schematic view of a portion a of fig. 4.
Fig. 6 is a schematic diagram of the light path of the light emitting unit of the present invention.
FIG. 7 is a schematic diagram of average beam angles of different spatial angles of the micro-nano structure antiglare panel when the normal light intensity of the lamp is 50%.
FIG. 8 is a schematic cross-sectional view of a micro-structure of a micro-nano mechanism antiglare shield.
Fig. 9 is an exploded view of the long and short frames of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 2 to 5 and 9, a lamp for classroom includes a lamp body 1, a bracket 2 and a suspension rod 3 for mounting the lamp body 1, the bracket 2 is fixedly mounted on the top of the lamp body 1, the suspension rod 3 is fixedly connected with the bracket 2, and the lamp body 1 includes a housing 11, a light-emitting unit 12, a long frame 13, a short frame 14, two symmetrically arranged middle connecting frames 15, a first antiglare plate 16 and a second antiglare plate 17.
The long side of the shell 11 is fixedly connected with the long frame 13, the short side of the shell 11 is fixedly connected with the short frame 14, and the shell 11, the long frame 13 and the short frame 14 form a cavity 110; the long frame 13 and the short frame 14 are fixedly connected at the joint; the two middle connecting frames 15 are respectively fixedly connected to the two short frames 14, and the two middle connecting frames 15 are symmetrically arranged; the light emitting unit 12 is disposed at a side of the housing 11 close to the cavity 110.
The number of the first anti-dazzle plates 16 is two, the first anti-dazzle plates 16 are obliquely arranged between the long frame 13 and the middle connecting frame 15, one end of each first anti-dazzle plate 16 is connected with the long frame 13, the other end of each first anti-dazzle plate 16 is connected with the middle connecting frame 15, and the horizontal height of one end, close to the middle connecting frame 15, of each first anti-dazzle plate 16 is higher than that of the other opposite end; the middle connecting frames 15 are provided with a third sliding groove 152 at one side near the other middle connecting frame 15, and the second dazzle prevention plate 17 is slidably provided at the third sliding grooves 152 of the two middle connecting frames 15.
The light-emitting unit 12 comprises a lamp bead 121, a PCB 120 and an optical lens 122 for improving the light-emitting angle of the lamp bead 121, the lamp bead 121 comprises more than one high-color-temperature lamp bead and more than one low-color-temperature lamp bead, the high-color-temperature lamp bead and the low-color-temperature lamp bead are respectively provided with the optical lens 122, and the light-emitting units 12 are uniformly arranged on one side of the shell 11 away from the hanger rod 3; the housing 11 is fitted with a power supply module 4 at a side remote from the light-emitting unit.
With the arrangement, when the light-emitting unit on the shell emits light, the high-color-temperature lamp beads and the low-color-temperature lamp beads respectively emit light with high color temperature and light with low color temperature, by arranging the optical lens on the lamp bead, the light-emitting angle of the light rays is increased after passing through the optical lens, so that the light rays are uniformly irradiated on the first anti-dazzle plate and the second anti-dazzle plate, and the first antiglare shield is obliquely arranged between the long frame and the middle connecting frame, when light passes through the first antiglare shield and the second antiglare shield, the first antiglare plate and the second antiglare plate suppress side high-angle light, suppress a part of side high-angle light and reduce the light-emitting angle thereof, thus, it is equivalent to converting a part of the ineffective light which is easy to cause glare and is positioned at the edge of the lamp into effective light, therefore, the uniformity of illumination is improved, and side high-angle light which can cause glare of human eyes is reduced, so that the anti-glare effect is improved; the human eyes feel more comfortable; meanwhile, the light-emitting unit is respectively provided with the high-color-temperature lamp beads and the low-color-temperature lamp beads, so that the color temperature of the emitted light is uniform, the fatigue of human eyes is not easy to cause, and the damage to the human eyes is reduced.
The long frame 13 is provided with a first sliding groove 131 on one side close to the middle connecting frame 15, the long frame 13 further comprises a fixing portion 132 and a connecting portion 133 located below the fixing portion 132, the connecting portion 133 comprises the first sliding groove 131, the first sliding groove 131 is formed by outwardly recessing the connecting portion 133, and the bottom of the first sliding groove 131 is provided with an abutting portion 134 extending towards the first sliding groove 131; the middle connecting frame 15 is provided with a second chute 151 on one side close to the long frame 13, the short frame 14 of the distance of the second chute 151 is far away from the end face of the middle connecting frame and is higher than the first chute 131, one end of the first anti-dazzle plate 16 is arranged in the first chute 131, the other end of the first anti-dazzle plate 16 is arranged in the second chute 151, the above arrangement is adopted, when the first anti-dazzle plate is installed, the first anti-dazzle plate can slide along the first chute and the second chute, the installation of the first anti-dazzle plate can be completed, the installation is simple and convenient, meanwhile, when the first anti-dazzle plate 16 shakes, the abutting part 134 can limit the first anti-dazzle plate 16, and the installation of the first anti-dazzle plate 16 is more stable.
The short frame 14 is provided with a first limiting member 141 on the first anti-glare plate 16 at a side close to the cavity 110, and the inclination angle of the first limiting member 141 is the same as that of the first anti-glare plate, so that the first anti-glare plate is prevented from shaking and is more stable.
The short rim 14 is provided with a protrusion 143 on a side close to the first dazzle prevention plate 16, and the protrusion 143 forms a cavity portion 144 for receiving the middle coupling frame 15 and the second dazzle prevention plate 17.
The short frames 14 are respectively provided with fixing plates at two ends close to the long frames 13, the fixing plates are matched with the first sliding grooves in shape, and the short frames 14 are respectively connected with the first sliding grooves 131 of the two long frames 13 through the fixing plates at two sides and are fixedly connected through screws.
The short frame 14 is provided with a second limiting member 142 at a position corresponding to the second dazzle prevention plate 17 at a side close to the cavity 110, so that the second dazzle prevention plate is prevented from shaking and is more stable.
The ratio of the high color temperature lamp beads to the low color temperature lamp beads in the light-emitting unit 12 is 1: 1, so that the color temperature of the light emitted by the light emitting unit is uniform.
The light-emitting angle of the light-emitting unit is more than or equal to 150 degrees, and the vertical distance h1 between the light-emitting unit and the highest point of the first anti-dazzle plate is more than or equal to 30 mm; the vertical distance h2 between the light-emitting unit and the highest point of the second anti-dazzle plate is more than or equal to 30 mm; under this distance, can prevent to appear the highlight facula condition when leading to the light-emitting because the first antiglare shield of light-emitting component distance is too near, also prevent simultaneously because the light-emitting component apart from the first antiglare shield and the second antiglare shield too far leads to the dark space to lead to the uneven condition of light-emitting to take place.
The top of the shell 11 is provided with more than one light hole 18, and the light holes 18 are communicated with the cavity 110, so that an originally darker ceiling above the lamp body is illuminated, and the visual perception of human eyes is more comfortable.
The first anti-dazzle plate 16 and the second anti-dazzle plate 17 are micro-nano structure anti-dazzle plates, and the light emitting range of the micro-nano structure anti-dazzle plates is 85-95 degrees; through the arrangement, the light-emitting angle of the micro-nano structure anti-dazzle plate is smaller, the side high-angle light effect is better inhibited, the side high-angle light causing glare is reduced, and the anti-dazzle effect is better.
As shown in fig. 7 and 8, the light distribution curves of the lamp under four different spatial angles, such as C0/180, C30/210, C60/240, and C90/270, are defined from the graph and the 50% average beam angle of the normal light intensity of the lamp, and the average beam angles of different spatial angles of the micro-nano structure antiglare plate are close to 90 ° when the normal light intensity of the lamp is 50%, so that the light exit angle of the micro-nano structure antiglare plate is small, and the effective utilization rate is high.
In the embodiment, the included angle between the first anti-dazzle plate 16 and the horizontal plane is 3 degrees, and the anti-dazzle effect is better due to the arrangement.
In this embodiment, the first anti-glare plate 16 is provided with a diffusion plate (not shown) on a side close to the lamp beads 12, one end of the diffusion plate is disposed in the first sliding groove 131, the other end of the diffusion plate is disposed in the second sliding groove 151, and the diffusion plate is disposed below the first anti-glare plate, so that the anti-glare effect of the lamp body is further improved.
In this embodiment, the second antiglare shield is equipped with a diffusion plate (not shown in the figure) on one side near the lamp bead, and the both ends of diffusion plate set up respectively in the third spout of both sides, and the diffusion plate sets up the below at the second antiglare shield, like this, further improves the anti-dazzle effect of lamp body.
As shown in fig. 6, the light of the lamp bead 121 on the PCB 120 passes through the optical lens 122 and then increases the light emitting angle, in this embodiment, the optical lens 122 is a ball lens, the light 1b emitted through the lens uniformly irradiates on the second antiglare plate, after the light 1b passes through the second antiglare plate, the second antiglare plate suppresses the side high-angle light, that is, the ineffective light is reduced, the light 2b emitted through the light emitting surface of the second antiglare plate has a light emitting angle smaller than that of the light 1b emitted through the lens, and then the front light, that is, the effective light is increased, so that the illuminance uniformity is improved, and meanwhile, the side high-angle light which can cause glare of human eyes is also reduced, and further, the antiglare effect is improved.
The lamp for the classroom is mainly used for indoor illumination and can also be used for other scenes.
Claims (10)
1. The utility model provides a lamp for classroom, includes lamp body, support and the jib that is used for installing the lamp body, and support fixed mounting is at the top of lamp body, jib and support fixed connection, its characterized in that: the lamp body comprises a shell, a light-emitting unit, a long frame, a short frame, two symmetrically arranged middle connecting frames, a first anti-dazzle plate and a second anti-dazzle plate;
the long side of the shell is fixedly connected with the long frame, the short side of the shell is fixedly connected with the short frame, and the shell, the long frame and the short frame form a cavity; the long frame and the short frame are fixedly connected at the connecting part; the two middle connecting frames are respectively and fixedly connected to the two short frames and are symmetrically arranged; the light-emitting unit is arranged on one side of the shell close to the cavity;
the first anti-dazzle plates are obliquely arranged between the long frame and the middle connecting frame, and the horizontal height of one end, close to the middle connecting frame, of each first anti-dazzle plate is higher than that of the other opposite end; the second antiglare shield is arranged between the two middle connecting frames.
2. The lamp for classroom as claimed in claim 1, wherein: the long frame is connected to first antiglare shield one end, and the middle part link is connected to the first antiglare shield other end.
3. The lamp for classroom as claimed in claim 1, wherein: the long frame is provided with a first sliding chute on one side close to the middle connecting frame, the middle connecting frame is provided with a second sliding chute on one side close to the long frame, the height of the second sliding chute is higher than that of the first sliding chute, one end of the first anti-dazzle plate is arranged in the first sliding chute, and the other end of the first anti-dazzle plate is arranged in the second sliding chute;
the long frame is provided with a first process groove which is arranged in a concave manner at one side far away from the middle connecting frame, and the first process groove is arranged along the length direction of the long frame; the top of the long frame is sunken downwards at one side close to the middle connecting frame to form a mounting step; the long frame is arranged on the mounting step and extends inwards and upwards to form a second process groove towards the upper end of one side close to the middle connecting frame;
the top of short frame is equipped with the mounting panel that extends the setting to being close to middle part link, is equipped with the installation hole site on the mounting panel.
4. The lamp for classroom as claimed in claim 1, wherein: a first limiting piece is arranged on one side of the short frame close to the cavity body and is correspondingly and obliquely arranged on the first anti-dazzle plate; and a second limiting part is arranged on one side of the short frame close to the cavity at the corresponding position of the second anti-dazzle plate.
5. The lamp for classroom as claimed in claim 1, wherein: the light-emitting units comprise lamp beads and optical lenses for improving the light-emitting angle of the lamp beads, and the light-emitting units are uniformly distributed on one side of the shell, which is far away from the suspender; the lamp beads comprise more than one high-color-temperature lamp bead and more than one low-color-temperature lamp bead, the high-color-temperature lamp beads and the low-color-temperature lamp beads are alternately arranged, and optical lenses are respectively arranged on the high-color-temperature lamp beads and the low-color-temperature lamp beads; high colour temperature lamp pearl and low colour temperature lamp pearl proportion among the luminescence unit are 1: 1.
6. the lamp for classroom as claimed in claim 5, wherein: the light-emitting angle of the optical lens is more than 150 degrees, and the distance between the horizontal height of the highest position of the first anti-dazzle plate and the light-emitting unit is more than 30 mm; the distance between the horizontal height of the highest position of the second anti-dazzle plate and the light-emitting unit is more than 30 mm.
7. The lamp for classroom as claimed in claim 1, wherein: the top of the shell is provided with more than one light hole which is communicated with the cavity.
8. The lamp for classroom as claimed in claim 1, wherein: the first anti-dazzle plate and the second anti-dazzle plate are micro-nano structure anti-dazzle plates, and the light emitting range of the micro-nano structure anti-dazzle plates is 85-95 degrees.
9. The lamp for classroom as claimed in claim 1, wherein: the included angle between the first anti-dazzle plate and the horizontal plane is 1-10 degrees.
10. The lamp for classroom as claimed in claim 1, wherein: and diffusion plates are arranged on one sides of the first anti-dazzle plate and the second anti-dazzle plate, which are close to the lamp beads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120800673.0U CN215446229U (en) | 2021-04-19 | 2021-04-19 | Lamp for classroom |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120800673.0U CN215446229U (en) | 2021-04-19 | 2021-04-19 | Lamp for classroom |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215446229U true CN215446229U (en) | 2022-01-07 |
Family
ID=79704933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120800673.0U Active CN215446229U (en) | 2021-04-19 | 2021-04-19 | Lamp for classroom |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215446229U (en) |
-
2021
- 2021-04-19 CN CN202120800673.0U patent/CN215446229U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN212056934U (en) | Blackboard lamp that sectional type throws | |
| CN110425466A (en) | A kind of LED classroom lamp | |
| CN215446229U (en) | Lamp for classroom | |
| CN206539961U (en) | LED wall wash lamp | |
| CN210197123U (en) | Anti-dazzle mesh blackboard lamp | |
| CN113203064A (en) | Anti-dazzle classroom lamp and mounting method thereof | |
| CN111664383A (en) | Optical system applied to large-area illumination and LED illuminating lamp thereof | |
| CN211146204U (en) | Blackboard L ED lighting device capable of reducing glare value | |
| CN218209214U (en) | Polarized light lamp capable of being used for integrated ceiling | |
| CN210319522U (en) | Long-strip-shaped desk lamp with side-light-emitting and light-homogenizing device | |
| CN208471333U (en) | A kind of lift car ceiling lighting device of uniformly light-emitting | |
| CN213810182U (en) | Anti-dazzle floor type reading lamp | |
| CN114754306A (en) | Anti-glare mounting method and system for LED blackboard lamp | |
| KR101778894B1 (en) | Low luminance and high efficiency led lighting apparatus | |
| CN215569991U (en) | Support lamp | |
| CN215929384U (en) | Blackboard lamp provided with optical assembly | |
| CN217235414U (en) | Optical assembly and blackboard lamp adopting same | |
| CN110440190A (en) | A kind of anti-glare blackboard lights | |
| CN213983315U (en) | LED light-gathering and light-homogenizing system and LED product using same | |
| CN217482571U (en) | Blue sky lamp researched and developed by Rayleigh scattering principle | |
| CN218883740U (en) | Anti-dazzle blackboard lamp based on double-inclined light source | |
| CN110440151B (en) | LED lamp for blackboard illumination | |
| CN214840602U (en) | Novel blackboard lamp | |
| CN220082875U (en) | Anti-dazzle honeycomb ceiling lamp | |
| CN216383693U (en) | Camping lamp |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |