CN112781012A - Lamp capable of emitting light uniformly - Google Patents

Lamp capable of emitting light uniformly Download PDF

Info

Publication number
CN112781012A
CN112781012A CN202110072432.3A CN202110072432A CN112781012A CN 112781012 A CN112781012 A CN 112781012A CN 202110072432 A CN202110072432 A CN 202110072432A CN 112781012 A CN112781012 A CN 112781012A
Authority
CN
China
Prior art keywords
light source
lamp
piece
protrusion
base
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202110072432.3A
Other languages
Chinese (zh)
Inventor
周明杰
高阳
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Oceans King Lighting Science and Technology Co Ltd
Oceans King Dongguan Lighting Technology Co Ltd
Shenzhen Oceans King Lighting Engineering Co Ltd
Original Assignee
Oceans King Lighting Science and Technology Co Ltd
Oceans King Dongguan Lighting Technology Co Ltd
Shenzhen Oceans King Lighting Engineering Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Oceans King Lighting Science and Technology Co Ltd, Oceans King Dongguan Lighting Technology Co Ltd, Shenzhen Oceans King Lighting Engineering Co Ltd filed Critical Oceans King Lighting Science and Technology Co Ltd
Priority to CN202110072432.3A priority Critical patent/CN112781012A/en
Publication of CN112781012A publication Critical patent/CN112781012A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • 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
    • F21V5/00—Refractors for light sources
    • F21V5/08—Refractors for light sources producing an asymmetric light distribution
    • 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
    • F21V5/00—Refractors for light sources
    • F21V5/007—Array of lenses or refractors for a cluster of light sources, e.g. for arrangement of multiple light sources in one plane
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

The embodiment of the invention discloses a lamp capable of emitting light uniformly, which comprises: the base, set up the light source spare on the base and set up in the interior transparent of light source spare top in the one side that the transparent kept away from the light source spare form a plurality of archs, bellied surface is the curved surface shape. According to the invention, the protrusion is formed on one surface of the inner transparent piece far away from the light source piece, the outer surface of the protrusion is set to be in a curved surface shape, and light emitted by the light source piece is refracted by the protrusion on the inner transparent piece, so that the divergence angle is enlarged and then transmitted to the outside. Because the light emitted by the light source part is refracted by the bulges on the inner transparent part, the light emitted by the light source part is uniformly emitted along the surfaces of the bulges, the dazzling or dizzy feeling of people can not be generated, and the lighting experience is improved.

Description

Lamp capable of emitting light uniformly
Technical Field
The invention relates to the technical field of illumination, in particular to a lamp capable of emitting light uniformly.
Background
The lamp is a widely used lighting lamp, is widely used for indoor and outdoor lighting of various leisure, fitness, entertainment places, lawn footpaths and the like, and plays a role in lighting and decoration. And the lamp is also commonly used in industrial occasions requiring illumination, such as the site of grain and oil manufacturing enterprises, construction sites and the like.
In the prior art, most industrial lamps are not uniform enough in light emitting, some local concentrated bright spots are very dazzling, some lights are staggered in brightness, and lighting experience is poor.
Disclosure of Invention
In view of this, the invention provides a lamp capable of emitting light uniformly, which is used for solving the problems that the lamp in the prior art is not uniform enough in light emission and poor in lighting experience.
To achieve one or a part of or all of the above or other objects, the present invention provides a lamp for uniformly emitting light, including: the light source device comprises a base, a light source piece arranged on the base and an inner transparent piece arranged on the light source piece;
the surface of the inner transparent piece, which is far away from the light source piece, is provided with a plurality of bulges, and the outer surfaces of the bulges are in a curved surface shape.
In the lamp of uniform light emission in this embodiment, the protrusion is a long strip;
the light source piece is a point light source, and a plurality of point light sources are arranged into a strip shape matched with the bulges; or the light source piece is a long strip matched with the bulge.
In the lamp of uniform light emission described in this embodiment, the outer surface of the end of the protrusion is an arc surface.
In the lamp with uniform light emission, a plurality of accommodating grooves for accommodating the light source piece are formed on one surface, close to the light source piece, of the inner transparent piece, the accommodating grooves correspond to the protrusions, and the light source piece is located on the central axis of the inner transparent piece.
In the lamp of uniform light emission described in this embodiment, the protrusion is an axisymmetric lens structure, and the protrusion gradually becomes thicker from the middle to both sides.
In the lamp of uniform light emission described in this embodiment, the protrusion is hemispherical, and the light source device is a point light source or a circular light source.
In the lamp with uniform light emission described in this embodiment, the curve equation of the cross section of the outer surface of the protrusion along the length direction of the inner transparent member is:
Figure BDA0002906015430000021
in the lamp of even light-emitting in this embodiment, the cover of interior transparent outside is equipped with outer transparent, is equipped with the cavity in the outer transparent, outer transparent with the base encloses into accommodation space, light source spare with interior transparent holds in the accommodation space.
In the lamp for uniformly emitting light according to this embodiment, the color of the outer transparent member is milky white; and the outer transparent piece is uniformly added with diffusion powder, and the adding proportion of the diffusion powder is 0.2-0.4% of the total mass of the outer transparent piece.
In the lamp capable of emitting light uniformly in the embodiment, the clamping protrusions are arranged on two sides of the base; end covers are arranged at two ends of the base, and a clamping groove is formed in one end of each end cover;
the outer side of the clamping protrusion is provided with a first side wall and a second side wall, a dividing groove is formed in the middle of the clamping protrusion, and the first side wall and the second side wall are located on two sides of the dividing groove;
the clamping protrusion is in interference fit with the clamping groove through the first side wall and the second side wall.
In the lamp with uniform light emission, a transition plate is arranged between the base and the end cover, a threaded hole is formed in the transition plate, and the threaded hole corresponds to the dividing groove and the clamping groove; the transition plate and the base are fixed through bolts; the bolt penetrates through the threaded hole and is in interference fit with the segmentation groove.
The embodiment of the invention has the following beneficial effects: according to the invention, the protrusion is formed on one surface of the inner transparent piece, which is far away from the light source piece, and the outer surface of the protrusion is set to be in a curved surface shape, so that light emitted by the light source piece is refracted by the protrusion on the inner transparent piece, and then is transmitted to the outside after the divergence angle is enlarged. Because the light that the light source spare sent is refraction through the arch on the interior transparency for the light that the light source spare sent is more even sends along bellied surface, thereby improves the luminous homogeneity of lamp, simultaneously, also can not make people produce dazzling or dizzy sensation, has improved the experience of illumination and has felt.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a lamp for uniformly emitting light in one embodiment.
Fig. 2 is an enlarged view of a point a in fig. 1.
Fig. 3 is a schematic structural view of the inner transparent member in fig. 1.
Fig. 4 is an enlarged view at B in fig. 3.
Fig. 5 is a cross-sectional view of the inner transparent member of fig. 3.
FIG. 6 is a graphical equation of a cross-section of the convex outer surface of FIG. 1.
Fig. 7 is a light distribution graph of the projection of fig. 1.
Wherein, the base 11, the first side wall 1111, the second side wall 1112, the dividing groove 112,
The light source element 12, the inner transparent element 13, the outer transparent element 14, the protrusion 131, the first arc surface 132, the receiving groove 133, the second arc surface 134, the end cap 15, the engaging groove 151, the transition plate 152, and the bolt 153.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without any inventive step, shall fall within the scope of the present invention.
The following describes in detail an implementation of a lamp with uniform light emission according to the present invention with reference to fig. 1 to 6.
Referring to fig. 1 and 2, in one embodiment, a lamp for uniformly emitting light includes a base 11, a light source device 12 disposed on the base 11, and an inner transparent member 13 disposed above the light source device 12.
The inner transparent member 13 has a plurality of protrusions 131 formed on a surface thereof away from the light source 12, and the outer surface of the protrusions 131 is curved. The light source 12 in this embodiment may be an LED lamp bead.
In this embodiment, by forming the protrusion 131 on the surface of the inner transparent member 13 away from the light source element 12 and setting the outer surface of the protrusion 131 to be a curved surface shape, light emitted from the light source element 12 is refracted by the protrusion 131 on the inner transparent member 13, and the divergence angle is expanded and then transmitted to the outside. Because the light emitted by the light source 12 is refracted by the protrusion 131 on the inner transparent member 13, the light emitted by the light source 12 is emitted uniformly along the surface of the protrusion 131, so that people do not feel dazzling or dizzy, and the lighting experience is improved.
Referring to fig. 1-5, in one embodiment, the protrusions 131 are elongated, and the light source devices 12 are linearly arranged on the base 11, and the light source devices 12 are located on the central axis of the inner transparent member 13. The light source is a point light source, and a plurality of point light sources are arranged into a strip shape matched with the bulges. Or the light source piece is a strip shape matched with the bulge. In this embodiment, the light source 12 is linearly arranged on the central axis of the inner transparent member 13, and the outer surfaces of the light source 12 and the protrusion 131 are in a shape matching with a curved surface, so that the light emitted by the light source 12 is uniformly distributed to two sides of the central axis of the inner transparent member 13, and the refracted light is more uniform. In another embodiment, the protrusion 131 may be hemispherical, and the light source 12 may be a point light source or an annular light source.
In one embodiment, in order to make the light emitted from the light source 12 more uniform after being refracted by the inner transparent member and improve the uniformity of the light emitted from the light source 12, the outer surface of the end of the protrusion is an arc surface, and the arc surface is referred to as a first arc surface 132.
Referring to fig. 4, in one embodiment, the sidewalls of the two ends of the receiving groove 133 are second arc surfaces 134. The bottom surface of the accommodating groove 133 and the bottom surface of the inner transparent part 13 are connected through the second arc surface 134, and the connection of the first arc surface and the second arc surface can avoid the light source part 12, so that the side wall of the accommodating groove 133 is prevented from colliding with the light source part 12 during installation, on the other hand, the effect of changing the refraction direction of light is achieved, and the uniformity of the light emitted by the light source part 12 is further improved.
In one embodiment, the protrusions 131 are axisymmetric lens structures, and the protrusions 131 are gradually thicker from the middle to both sides, so that the light emitted from the light source device can be diverged.
The equation of the curve of the section of the outer surface of the protrusion 131 along the length direction of the inner transparent member 13 is:
Figure BDA0002906015430000051
please refer to fig. 6 for an image of the equation of the curve. It should be noted that the coordinate system of the curve equation L of the cross section of the protrusion 131 is a straight line perpendicular to the bottom end surface of the inner transparent member and perpendicularly intersecting with the straight line of the central axis of the bottom end surface of the inner transparent member, which is the y-axis, and the direction from the outer surface of the inner transparent member to the bottom end surface is the forward direction. The x-axis is perpendicularly intersected with the y-axis and perpendicularly intersected with a straight line of a central axis of the bottom end surface of the inner transparent member. Fig. 7 shows a light distribution curve obtained by refracting the light emitted from the light source through the inner transparent member.
Referring to fig. 1, in one embodiment, the outer transparent member 14 is covered outside the inner transparent member 13. The outer transparent member 14 is semi-cylindrical and is milky in color. The color of the outer transparent member 14 is set to be milky white, which further improves the uniformity of the light emitted from the light source member.
Referring to fig. 1 and 2, in one embodiment, the outer transparent member 14 is uniformly added with a chemical additive for making light more flexible. Preferably, the addition ratio of the diffusion powder is 0.2 to 0.4% of the total mass of the outer transparent member. The diffuse reflection effect of the diffusion powder makes the light passing through the outer transparent member 14 more uniform and softer, and has both an aesthetic and anti-glare effect, and the higher the concentration of the light scattering powder, the more uniform the effect is, the better the effect is.
Clamping protrusions are arranged on two sides of the base 11. The two ends of the base 11 are provided with end covers 15, and one end of each end cover 15 is provided with a clamping groove 151.
The outer side of the clamping protrusion has a first side wall 1111 and a second side wall 1112, and the middle of the clamping protrusion is provided with a dividing groove 112, and the first side wall 1111 and the second side wall 1112 are located at two sides of the dividing groove 112. The engaging protrusion is in interference fit with the engaging groove 151 through the first side wall 1111 and the second side wall 1112.
A transition plate 152 is arranged between the base 11 and the end cover 15, a threaded hole is arranged on the transition plate 152, and the threaded hole corresponds to the dividing groove 112 and the clamping groove 151. The transition plate 16 and the base 11 are fixed by bolts 153. The bolt 153 penetrates the threaded hole and is in interference fit with the partition groove 112.
The working principle of the lamp emitting light uniformly in this embodiment is described as follows:
a lamp capable of emitting light uniformly comprises LED lamp beads, an inner transparent part 13 and an outer transparent part 14. Interior transparency comprises the transparent holding tank of one by one, can hold the LED lamp pearl of the different quantity of different models in the holding tank, if can hold a plurality of 2835, 3030, 3535 encapsulation size's LED lamp pearl, the light that LED lamp pearl sent is through interior transparency refraction expand after the divergence angle, pass through outer transparency again, because the effect of interior lens, the even dark spot that does not have in surface of outer transparency during the light-emitting, outer transparency adds the diffusion powder, can make light softer, the light homogeneity that LED lamp pearl sent is better, and have better anti-dazzle effect. The outer transparent piece is uniformly added with diffusion powder according to a curve equation L of a curve equation of a section of the bulge corresponding to the accommodating groove, the adding proportion is 0.2% -0.4%, the light passing through the outer transparent piece 14 is more uniform and softer due to the diffuse reflection effect of the diffusion powder, the appearance and the anti-dazzle effect are achieved, and the higher the concentration of the diffusion powder is, the more uniform the effect is, the better the effect is.
Specifically, the lamp bead with uniform light emission of the embodiment adopts 3030 with a color rendering index of 80 to package an LED, and the total power is 36W. Three LEDs are placed in a containing groove, the whole inner transparent piece is composed of a plurality of containing grooves, the LEDs are refracted by the inner transparent piece, the light distribution of the LEDs is changed, the light-emitting angle is enlarged, and the outer transparent piece with the diffusion powder is added to the rethread, so that the milky outer transparent piece is bright and uniform, the light-emitting bright spots of the LEDs cannot be seen completely, and the light-emitting area is enlarged. Meanwhile, the diffuse reflection effect of the diffusion powder enables the luminous surface to be softer, and the diffusion powder has the effects of attractiveness and anti-dazzle.
Thus, the working principle of the lamp with uniform light emission in the embodiment is described.
According to the invention, the protrusion is formed on one surface of the inner transparent piece far away from the light source piece, the outer surface of the protrusion is arranged in a curved surface shape, and light emitted by the light source piece is refracted by the protrusion on the inner transparent piece, so that the divergence angle is enlarged and then is transmitted to the outside. Because the light emitted by the light source part is refracted by the bulges on the inner transparent part, the light emitted by the light source part is uniformly emitted along the surfaces of the bulges, the dazzling or dizzy feeling of people can not be generated, and the lighting experience is improved.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention, and it is therefore to be understood that the invention is not limited thereto, but may be modified within the scope of the appended claims.

Claims (10)

1. A lamp for uniformly emitting light, comprising: the light source device comprises a base, a light source piece arranged on the base and an inner transparent piece arranged on the light source piece;
the surface of the inner transparent piece, which is far away from the light source piece, is provided with a plurality of bulges, and the outer surfaces of the bulges are in curved surface shapes.
2. The lamp of claim 1, wherein the protrusions are elongated;
the light source piece is a point light source, and a plurality of point light sources are arranged into a strip shape matched with the bulges; or the light source piece is a long strip matched with the bulge.
3. The lamp of claim 2, wherein the outer surface of the end of the protrusion is a cambered surface.
4. The lamp of claim 1, wherein a plurality of receiving grooves for receiving the light source element are formed on a surface of the inner transparent element adjacent to the light source element, the receiving grooves are disposed corresponding to the protrusions, and the light source element is located on a central axis of the inner transparent element.
5. The lamp of claim 4, wherein the protrusions are axisymmetric lens structures, and the protrusions gradually thicken from the middle to both sides.
6. The lamp of claim 1, wherein the protrusions are hemispherical, and the light source is a point light source or a circular light source.
7. The lamp of any one of claims 1 to 6, wherein the curve equation of the cross section of the outer surface of the protrusion along the length direction of the inner transparent member is:
Figure FDA0002906015420000011
8. the lamp of any one of claims 1 to 6, wherein an outer transparent member covers the outer side of the inner transparent member, a cavity is formed in the outer transparent member, an accommodating space is defined by the outer transparent member and the base, and the light source member and the inner transparent member are accommodated in the accommodating space.
9. The lamp of claim 8, wherein the outer transparent member is milky white in color; and the outer transparent piece is uniformly added with diffusion powder, and the adding proportion of the diffusion powder is 0.2-0.4% of the total mass of the outer transparent piece.
10. The lamp of claim 9, wherein the base has engaging protrusions on both sides; end covers are arranged at two ends of the base, and a clamping groove is formed in one end of each end cover;
the outer side of the clamping protrusion is provided with a first side wall and a second side wall, a dividing groove is formed in the middle of the clamping protrusion, and the first side wall and the second side wall are located on two sides of the dividing groove;
the clamping protrusion is in interference fit with the clamping groove through the first side wall and the second side wall;
a transition plate is arranged between the base and the end cover, a threaded hole is formed in the transition plate, and the threaded hole is arranged corresponding to the dividing groove and the clamping groove; the transition plate and the base are fixed through bolts; the bolt penetrates through the threaded hole and is in interference fit with the segmentation groove.
CN202110072432.3A 2021-01-19 2021-01-19 Lamp capable of emitting light uniformly Pending CN112781012A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110072432.3A CN112781012A (en) 2021-01-19 2021-01-19 Lamp capable of emitting light uniformly

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110072432.3A CN112781012A (en) 2021-01-19 2021-01-19 Lamp capable of emitting light uniformly

Publications (1)

Publication Number Publication Date
CN112781012A true CN112781012A (en) 2021-05-11

Family

ID=75757865

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110072432.3A Pending CN112781012A (en) 2021-01-19 2021-01-19 Lamp capable of emitting light uniformly

Country Status (1)

Country Link
CN (1) CN112781012A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022247285A1 (en) * 2021-05-28 2022-12-01 嘉兴山蒲照明电器有限公司 Led lighting device
US20220381421A1 (en) * 2021-05-28 2022-12-01 Jiaxing Super Lighting Electric Appliance Co., Ltd Led lighting device

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201401722Y (en) * 2009-03-12 2010-02-10 华南理工大学 LED grille lamp and lens thereof
CN101761868A (en) * 2009-09-30 2010-06-30 海洋王照明科技股份有限公司 Light distribution lens and LED lamp thereof
CN101922634A (en) * 2010-07-22 2010-12-22 鸿富锦精密工业（深圳）有限公司 LED (Light Emitting Diode) illumination device
US20130039054A1 (en) * 2011-08-09 2013-02-14 Foxsemicon Integrated Technology, Inc. Light-emitting diode lamp
CN203940357U (en) * 2014-04-14 2014-11-12 深圳市艾比森光电股份有限公司 Collector lens group and light fixture
US20200224852A1 (en) * 2017-09-28 2020-07-16 Opple Lighting Co., Ltd. Lighting device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201401722Y (en) * 2009-03-12 2010-02-10 华南理工大学 LED grille lamp and lens thereof
CN101761868A (en) * 2009-09-30 2010-06-30 海洋王照明科技股份有限公司 Light distribution lens and LED lamp thereof
CN101922634A (en) * 2010-07-22 2010-12-22 鸿富锦精密工业（深圳）有限公司 LED (Light Emitting Diode) illumination device
US20130039054A1 (en) * 2011-08-09 2013-02-14 Foxsemicon Integrated Technology, Inc. Light-emitting diode lamp
CN203940357U (en) * 2014-04-14 2014-11-12 深圳市艾比森光电股份有限公司 Collector lens group and light fixture
US20200224852A1 (en) * 2017-09-28 2020-07-16 Opple Lighting Co., Ltd. Lighting device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022247285A1 (en) * 2021-05-28 2022-12-01 嘉兴山蒲照明电器有限公司 Led lighting device
US20220381421A1 (en) * 2021-05-28 2022-12-01 Jiaxing Super Lighting Electric Appliance Co., Ltd Led lighting device
US11781736B2 (en) * 2021-05-28 2023-10-10 Jiaxing Super Lighting Electric Appliance Co., Ltd LED lighting device and novel grille lamp

Similar Documents

Publication Publication Date Title
JP3148997U (en) Light bulb structure
US20040114367A1 (en) Light emitting diode light bulb
TWI439638B (en) Light shade and lamp having the same
CN112781012A (en) Lamp capable of emitting light uniformly
JP3221429U (en) Light guide member
US9022606B2 (en) Virtual surface indirect radiating luminaire
JP2020107595A (en) Vehicular led linear illuminating module
US20120327652A1 (en) Light-guided led indirect lighting device
TW201409096A (en) Modular micro-structured light-guiding device
CN106764939A (en) A kind of collimation lens for eliminating veiling glare
TW201333379A (en) Lampshade and LED lamp using the same
CN211605001U (en) Dazzle various luminous key cap
KR20100045639A (en) A light diffusing lens for a led lamp
KR101059781B1 (en) LED lighting fixtures
CN203413496U (en) LED (Light Emitting Diode) ceiling lamp
JP2016091855A (en) Luminaire
KR101682676B1 (en) Diffusion Lens having Scaterring Function for LED lighting
US9528683B2 (en) Shaped indirect luminaire
CN216844395U (en) Blackboard lamp
CN203286467U (en) LED lamp
CN214369676U (en) LED ceiling lamp with luminous effect of petal
CN212390243U (en) Anti-dazzle board and bar lamp
US20150233542A1 (en) Batwing optics for indirect luminaire
CN201502895U (en) Light source device
KR101891431B1 (en) Illumination lens for led and linear illumination apparatus using the same

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20210511