CN110864238A - Method for adjusting light intensity and color temperature of desk lamp - Google Patents
Method for adjusting light intensity and color temperature of desk lamp Download PDFInfo
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- CN110864238A CN110864238A CN201911087436.8A CN201911087436A CN110864238A CN 110864238 A CN110864238 A CN 110864238A CN 201911087436 A CN201911087436 A CN 201911087436A CN 110864238 A CN110864238 A CN 110864238A
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- Prior art keywords
- lamp
- base
- desk lamp
- transparent
- color temperature
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S6/00—Lighting devices intended to be free-standing
- F21S6/002—Table lamps, e.g. for ambient lighting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B44—DECORATIVE ARTS
- B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
- B44C5/00—Processes for producing special ornamental bodies
- B44C5/06—Natural ornaments; Imitations thereof
-
- 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
- F21V14/00—Controlling the distribution of the light emitted by adjustment of elements
- F21V14/02—Controlling the distribution of the light emitted by adjustment of elements by movement of light sources
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
- F21V21/06—Bases for movable standing lamps; Fixing standards to the bases
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
- F21V21/10—Pendants, arms, or standards; Fixing lighting devices to pendants, arms, or standards
- F21V21/104—Pendants
-
- 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
- F21V3/00—Globes; Bowls; Cover glasses
- F21V3/04—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings
- F21V3/06—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings characterised by the material
-
- 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
- F21V33/00—Structural combinations of lighting devices with other articles, not otherwise provided for
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V7/00—Reflectors for light sources
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V7/00—Reflectors for light sources
- F21V7/0091—Reflectors for light sources using total internal reflection
-
- 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 invention discloses a method for adjusting light intensity and color temperature of a desk lamp, wherein the desk lamp comprises a base containing a transparent layer, a transparent lamp pole connected with the base and an integrated semitransparent lampshade connected with the lamp pole, the lampshade is connected with the lamp pole through a self-lubricating single-rod ball joint bearing, and the base is provided with a base and a lifting platform. The distance between the LED light source on the upper surface of the lifting platform and the bottom of the lamp post is changed, and the luminous intensity and color temperature distribution of the desk lamp base, the lamp post and the lampshade can be adjusted.
Description
Technical Field
The invention belongs to the field of LED illumination, and particularly relates to a method for adjusting light intensity and color temperature of a desk lamp.
Background
At present, common table lamps in the market basically have the function of adjusting light intensity and also have the function of adjusting color temperature, but most of the common table lamps adopt an electronic circuit method. In addition, common desk lamp bases and lamp posts on the market are non-luminous, so that the phenomenon of 'black under the lamp' is caused. Usually, the light source is arranged at the upper end of the desk lamp, and the lampshade is fixed on the lamp holder, but because the lampshade has an opaque framework, a framework shadow is easily generated.
Disclosure of Invention
The purpose of the invention is as follows: the invention provides a method for adjusting light intensity and color temperature of a desk lamp, aiming at solving the problem that the existing desk lamp lacks a novel means for adjusting light intensity and color temperature distribution.
The technical scheme is as follows: a desk lamp comprises a transparent layer base, a transparent lamp pole and an integrated translucent lampshade; the base is a cuboid formed by epoxy resin glue or acrylic, the surface of the cuboid base is a transparent layer, coral is sealed in the transparent layer, an opalescent layer is arranged below the transparent layer, and a base and a lifting platform are arranged below the opalescent layer; a through hole is formed in the middle of the base, threads are arranged on the inner side of the through hole, and a limit ring is arranged on the upper portion of each thread; the upper surface of the lifting table is provided with an LED light source, the lower surface of the lifting table is provided with an adjusting knob, and the side surface of the lifting table is provided with threads; the lifting platform can move up and down in the base by rotating the adjusting knob; the middle parts of the transparent layer and the opal layer of the cuboid base are provided with a cylindrical through hole, and the aperture size of the cylindrical through hole is consistent with that of the lamp post; a lamp post is arranged in the cylindrical through hole; the lamp post is a transparent acrylic rod, and the top of the acrylic rod is provided with a conical notch; a self-lubricating single-rod type ball joint bearing connecting rod is arranged in the center of the conical notch of the lamp post; the upper end of the connecting rod is connected with the center of the inner surface of the integrated translucent lampshade; the integrated translucent lampshade is formed by plastic injection molding once.
A light intensity adjusting method of a desk lamp is characterized in that an adjusting knob on the lower surface of a lifting platform is adjusted, the distance between an LED light source on the upper surface of the lifting platform and the lower end face of a transparent lamp pole is changed, and the respective luminous intensity and luminous proportion of a desk lamp base, the lamp pole and a lampshade can be adjusted.
As an optimization: the LED light source on the upper surface of the lifting platform is a COB plane white light source with different color temperatures of the inner ring and the outer ring.
The method for adjusting the color temperature of the desk lamp is characterized in that an adjusting knob on the lower surface of a lifting platform is adjusted, the distance between a COB plane white light source on the upper surface of the lifting platform and the lower end surface of a transparent lamp pole can be changed, and therefore the color temperature and the color temperature change gradient of a desk lamp base, the lamp pole and a lamp shade are adjusted.
As an optimization: the color temperatures of the desk lamp base, the lamp post and the lampshade are reduced or improved in sequence.
As an optimization: the color temperature of the luminous lamp post increases or decreases along with the increase of the height of the lamp post.
As an optimization: the color temperatures of the inner ring and the outer ring of the COB plane white light source are 3000K and 6500K respectively; adjusting the adjusting knob on the lower surface of the lifting platform to change the distance between the COB plane white light source and the lower end surface of the transparent lamp rod, wherein the color temperature change ranges of the desk lamp base, the lamp rod and the lamp shade are respectively 6500K for 5000-; the color temperature of the luminous lamp post is reduced from 5000K to 3000K along with the increase of the height of the lamp post.
As an optimization: dissolving phosphate powder in boiling water, fully stirring until the powder is completely dissolved, placing small stones in the solution, slightly spraying seed crystals on the surface of the solution when the temperature of the solution is reduced to 40 ℃, uniformly distributing the seed crystals on the bottom of a container and the stones, standing at the room temperature of more than 20 ℃ for more than 4 days to grow out coral with the length of more than 2 cm, taking out the coral and naturally drying; a base is arranged in the bottom surface of the mold, epoxy resin AB glue mixed solution containing silicon dioxide or calcium oxide powder is poured, and a milky layer is formed after heating and curing; placing coral on the transparent substrate, pouring mixed solution of epoxy resin AB glue, and heating and curing to obtain the transparent layer.
Has the advantages that: the invention has the advantages that the light source is arranged below, the light is transmitted to the top by the acrylic rod by utilizing the optical principle of total reflection, the light is uniformly dispersed to the periphery through the conical notch on the top, the structure is novel and unique, the base and the lamp post of the desk lamp can actively emit light conveniently, and the phenomenon of 'black under the lamp' is solved. The transparent base is full of artistic sense due to the addition of the artificial coral. The COB plane white light source with different color temperatures of the inner ring and the outer ring is reasonably selected, the light intensity and the color temperature are skillfully adjusted by adopting a mechanical mode, and different value distributions of the light intensity and the color temperature on the three parts of the base, the lamp post and the lampshade can be realized.
Drawings
FIG. 1 is a schematic view of the structure of a lamp post, a lampshade and a connecting rod of the invention;
fig. 2 is a schematic view of the base structure of the present invention.
The LED lamp comprises a lamp post, a lamp shade, a transparent lamp post, a bulb joint bearing, a conical notch, a lamp post lower end face, a connecting rod, a base, a transparent layer 702, a milky white layer 703, a coral 704, a transparent layer and a milky white layer middle through hole, a 705 plane white light source inner ring, a 706 plane white light source outer ring, a 707 lifting table 708, a lifting table side thread, a 709, a lifting table lower surface adjusting knob, a 710 base, a 711, a base cylindrical through hole, a 712 and a base cylindrical through hole inner side thread.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below so that those skilled in the art can better understand the advantages and features of the present invention, and thus the scope of the present invention will be more clearly defined. The embodiments described herein are only a few embodiments of the present invention, rather than all embodiments, and all other embodiments that can be derived by one of ordinary skill in the art without inventive faculty based on the embodiments described herein are intended to fall within the scope of the present invention.
Example one
The desk lamp comprises a transparent layer base 7, a transparent lamp post 2 and an integrated translucent lampshade 1. The base 7 is a cuboid formed by epoxy resin glue or acrylic, the surface of the cuboid base is a transparent layer 701, coral 703 is sealed in the transparent layer, an opal layer 702 is arranged below the transparent layer 701, and a base 710 and a lifting table 707 are arranged below the opal layer 702; a base cylindrical through hole 711 is formed in the middle of the base 710, base cylindrical through hole inner threads 712 are formed in the inner side of the base cylindrical through hole 711, and a limit ring is arranged at the upper part of the base cylindrical through hole inner threads 712; the upper surface of the lifting table 707 is provided with LED light sources 705 and 706, the lower surface of the lifting table 707 is provided with an adjusting knob 709, and the side surface is provided with threads 708; the base is connected with the lifting table 707 through threads 708, 712; a through hole 704 is arranged in the middle of the transparent layer 701 of the cuboid base and the opal layer 702, and the aperture size of the through hole is consistent with that of the lamp post 2; the lower end 5 of the lamp post 2 is arranged in the through hole 704; the lamp post 2 is a transparent acrylic rod, and the top of the acrylic rod is provided with a conical notch 4; a self-lubricating single-rod type ball joint bearing 3 connecting rod 6 is arranged in the center of the conical notch 4 of the lamp post; the upper end of the connecting rod 6 is connected with the center of the inner surface of the integrated translucent lampshade 1. The integrated translucent lampshade 1 is formed by plastic injection molding once.
Adjusting a knob 709 on the lower surface of the lifting table 707, changing the distance between the LED light sources 705 and 706 on the upper surface of the lifting table 707 and the lower end surface 5 of the transparent lamp pole, and adjusting the respective luminous intensity and luminous proportion of the desk lamp base 7, the lamp pole 2 and the lampshade 1.
Example two
The structure of the desk lamp is the same as that of the first embodiment, and the LED light source on the upper surface of the lifting table 707 is a COB plane white light source with the color temperature of an inner ring 705 being 3000K and the color temperature of an outer ring 706 being 6500K. Adjust knob 709 of elevating platform 707 lower surface, change elevating platform 707 upper surface COB plane white light source 705, 706 with terminal surface 5 distance under the transparent lamp pole adjusts the respective colour temperature and the colour temperature change gradient of three parts of desk lamp base 7, lamp pole 2 and lamp shade 1. The color temperatures of the desk lamp base 7, the lamp post 2 and the lampshade 1 are reduced in sequence. The color temperature change ranges of the desk lamp base 7, the lamp post 2 and the lampshade 1 are respectively 5000-; the color temperature of the luminous lamp post 2 is reduced from 5000K to 3000K along with the increase of the height of the lamp post.
EXAMPLE III
The structure of the table lamp is the same as that of the first embodiment, the color temperature of the inner ring 705 of the LED light source on the upper surface of the lifting table 707 is 7000K, and the color temperature of the outer ring 706 is 2800K. Adjust knob 709 of elevating platform 707 lower surface, change the COB plane white light source 705, 706 of elevating platform 707 upper surface with the 5 distances of terminal surface under the transparent lamp pole adjust the colour temperature and the colour temperature change gradient separately of desk lamp base 7, lamp pole 2 and 1 three parts of lamp shade, and desk lamp base 7, lamp pole 2 and 1 colour temperature separately promote in proper order. The color temperature change ranges of the three parts of the desk lamp base 7, the lamp post 2 and the lampshade 1 are 2800-4500K, 3500-6500K and 4500-7000K respectively; the color temperature of the lighting lamp post 2 increases from 3000K to 6700K as the height of the lamp post increases.
Example four
A transparent layer 701, a coral 703 and a milky layer 702 of the desk lamp base 7. Step one, coral 703 is produced. Dissolving phosphate with boiling water, stirring thoroughly until the powder is completely dissolved, placing small stone blocks in the solution, and lightly spraying seed crystals on the surface of the solution when the temperature of the solution is reduced to 40 ℃ so as to uniformly distribute the seed crystals on the bottom of the container and the stone. The crystal with the length of more than 2 cm can be grown after standing for more than 4 days at the room temperature of more than 20 ℃. Pouring out the redundant liquid, taking out the coral 703 and naturally drying. And step two, manufacturing the base. Manufacturing a rectangular mould, pouring epoxy resin AB glue mixed solution containing silicon dioxide or calcium oxide powder into the built-in base 710, and heating and curing to form a milky color layer 702; placing coral 703 thereon, pouring mixed solution of epoxy resin AB glue, and heating and curing to obtain transparent layer 701.
Claims (8)
1. A desk lamp, its characterized in that: the desk lamp comprises a transparent layer base, a transparent lamp pole and an integrated translucent lampshade; the base is a cuboid formed by epoxy resin glue or acrylic, the surface of the cuboid base is a transparent layer, coral is sealed in the transparent layer, an opalescent layer is arranged below the transparent layer, and a base and a lifting platform are arranged below the opalescent layer; a through hole is formed in the middle of the base, threads are arranged on the inner side of the through hole, and a limit ring is arranged on the upper portion of each thread; the upper surface of the lifting table is provided with an LED light source, the lower surface of the lifting table is provided with an adjusting knob, and the side surface of the lifting table is provided with threads; the lifting platform can move up and down in the base by rotating the adjusting knob; the middle parts of the transparent layer and the opal layer of the cuboid base are provided with a cylindrical through hole, and the aperture size of the cylindrical through hole is consistent with that of the lamp post; a lamp post is arranged in the cylindrical through hole; the lamp post is a transparent acrylic rod, and the top of the acrylic rod is provided with a conical notch; a self-lubricating single-rod type ball joint bearing connecting rod is arranged in the center of the conical notch of the lamp post; the upper end of the connecting rod is connected with the center of the inner surface of the integrated translucent lampshade; the integrated translucent lampshade is formed by plastic injection molding once.
2. A method for adjusting light intensity of a desk lamp is characterized by comprising the following steps: adjust elevating platform lower surface adjust knob changes elevating platform upper surface LED light source with terminal surface distance under the transparent lamp pole, can adjust the luminous intensity and the luminous proportion separately of desk lamp base, lamp pole and lamp shade triplex.
3. The desk lamp as claimed in claim 1, wherein the LED light source on the upper surface of the elevating platform is a COB plane white light source with different color temperatures of the inner and outer rings.
4. A method for adjusting color temperature of a desk lamp is characterized by comprising the following steps: adjust elevating platform lower surface adjust knob can change elevating platform upper surface COB plane white light source with terminal surface distance under the transparent lamp pole to adjust the colour temperature and the colour temperature gradient of change separately of desk lamp base, lamp pole and lamp shade triplex.
5. A method for adjusting color temperature of a desk lamp as claimed in claim 3 or 4, wherein the color temperature of the desk lamp base, the lamp post and the lamp cover is sequentially decreased or increased.
6. The method of claim 5, wherein the color temperature of the lighting lamp is gradually increased or decreased with the height of the lamp rod.
7. The method for adjusting color temperature of a desk lamp as claimed in claim 6, wherein the color temperatures of the inner and outer circles of the COB plane white light source are 3000K and 6500K respectively; adjusting the adjusting knob on the lower surface of the lifting platform to change the distance between the COB plane white light source and the lower end surface of the transparent lamp rod, wherein the color temperature change ranges of the desk lamp base, the lamp rod and the lamp shade are respectively 6500K for 5000-; the color temperature of the luminous lamp post is reduced from 5000K to 3000K along with the increase of the height of the lamp post.
8. The desk lamp as claimed in claim 1, wherein the phosphate powder is dissolved in boiling water, the mixture is stirred sufficiently until the phosphate powder is completely dissolved, small stones are placed in the solution, the seed crystals are lightly sprinkled on the surface of the solution when the temperature of the solution is reduced to 40 ℃ so as to be uniformly distributed on the bottom of the container and the stones, the coral with the length of more than 2 cm can grow out after standing for more than 4 days at the room temperature of more than 20 ℃, and the coral is taken out and naturally dried; a base is arranged in the bottom surface of the mold, epoxy resin AB glue mixed solution containing silicon dioxide or calcium oxide powder is poured, and a milky layer is formed after heating and curing; placing coral on the transparent substrate, pouring mixed solution of epoxy resin AB glue, and heating and curing to obtain the transparent layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911087436.8A CN110864238A (en) | 2019-11-08 | 2019-11-08 | Method for adjusting light intensity and color temperature of desk lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911087436.8A CN110864238A (en) | 2019-11-08 | 2019-11-08 | Method for adjusting light intensity and color temperature of desk lamp |
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| Publication Number | Publication Date |
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| CN110864238A true CN110864238A (en) | 2020-03-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911087436.8A Pending CN110864238A (en) | 2019-11-08 | 2019-11-08 | Method for adjusting light intensity and color temperature of desk lamp |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB160570A (en) * | 1919-12-24 | 1921-03-24 | Frederick Richard Boardman | Improvements in or relating to reflecters for electric arc and other lamps |
| CN1439087A (en) * | 2001-01-20 | 2003-08-27 | 两兄弟光电子有限公司 | Lamp for use in living room, especially table or floor lamp |
| CN2660307Y (en) * | 2003-11-20 | 2004-12-01 | 郭玲康 | Candle stick with effect of shadow |
| CN201096326Y (en) * | 2007-10-09 | 2008-08-06 | 清远市清城区石角永裕实业有限公司 | Universal illuminating lamp |
| CN102620169A (en) * | 2012-03-15 | 2012-08-01 | 南通大学 | Method for implementing selective distribution of color temperatures in illumination area |
| CN105066003A (en) * | 2015-08-27 | 2015-11-18 | 李先锋 | Novel LED lamp |
| CN205535097U (en) * | 2015-11-23 | 2016-08-31 | 飞利浦灯具(上海)有限公司 | Lamp |
| CN105937739A (en) * | 2016-05-23 | 2016-09-14 | 长江大学 | Light guide type streetlamp |
| CN206280820U (en) * | 2016-12-01 | 2017-06-27 | 佛山市合光医疗科技有限公司 | Mouth lamp |
| CN207539687U (en) * | 2017-09-20 | 2018-06-26 | 厦门海洋职业技术学院 | A kind of colour temperature and the adjustable LED light of light intensity |
| CN110454729A (en) * | 2019-08-21 | 2019-11-15 | 马荣昌 | Reflection type road lamp |
-
2019
- 2019-11-08 CN CN201911087436.8A patent/CN110864238A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB160570A (en) * | 1919-12-24 | 1921-03-24 | Frederick Richard Boardman | Improvements in or relating to reflecters for electric arc and other lamps |
| CN1439087A (en) * | 2001-01-20 | 2003-08-27 | 两兄弟光电子有限公司 | Lamp for use in living room, especially table or floor lamp |
| CN2660307Y (en) * | 2003-11-20 | 2004-12-01 | 郭玲康 | Candle stick with effect of shadow |
| CN201096326Y (en) * | 2007-10-09 | 2008-08-06 | 清远市清城区石角永裕实业有限公司 | Universal illuminating lamp |
| CN102620169A (en) * | 2012-03-15 | 2012-08-01 | 南通大学 | Method for implementing selective distribution of color temperatures in illumination area |
| CN105066003A (en) * | 2015-08-27 | 2015-11-18 | 李先锋 | Novel LED lamp |
| CN205535097U (en) * | 2015-11-23 | 2016-08-31 | 飞利浦灯具(上海)有限公司 | Lamp |
| CN105937739A (en) * | 2016-05-23 | 2016-09-14 | 长江大学 | Light guide type streetlamp |
| CN206280820U (en) * | 2016-12-01 | 2017-06-27 | 佛山市合光医疗科技有限公司 | Mouth lamp |
| CN207539687U (en) * | 2017-09-20 | 2018-06-26 | 厦门海洋职业技术学院 | A kind of colour temperature and the adjustable LED light of light intensity |
| CN110454729A (en) * | 2019-08-21 | 2019-11-15 | 马荣昌 | Reflection type road lamp |
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Application publication date: 20200306 |
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