CN111306485A - LED shadowless lamp - Google Patents
LED shadowless lamp Download PDFInfo
- Publication number
- CN111306485A CN111306485A CN202010185627.4A CN202010185627A CN111306485A CN 111306485 A CN111306485 A CN 111306485A CN 202010185627 A CN202010185627 A CN 202010185627A CN 111306485 A CN111306485 A CN 111306485A
- Authority
- CN
- China
- Prior art keywords
- led
- led chip
- shadowless lamp
- rings
- light source
- 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
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S8/00—Lighting devices intended for fixed installation
- F21S8/04—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures
- F21S8/06—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures by suspension
- F21S8/063—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures by suspension with a rigid pendant, i.e. a pipe or rod
-
- 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
- F21V19/00—Fastening of light sources or lamp holders
- F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
- F21V19/0015—Fastening arrangements intended to retain 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
- F21V21/10—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
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
- F21V23/003—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array
-
- 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
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/502—Cooling arrangements characterised by the adaptation for cooling of specific components
- F21V29/507—Cooling arrangements characterised by the adaptation for cooling of specific components of means for protecting lighting devices from damage, e.g. housings
-
- 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
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
-
- 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
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/85—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems characterised by the material
- F21V29/89—Metals
-
- 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
- F21V9/00—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters
- F21V9/30—Elements containing photoluminescent material distinct from or spaced from the light source
- F21V9/38—Combination of two or more photoluminescent elements of different materials
-
- 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
- F21Y2107/00—Light sources with three-dimensionally disposed light-generating elements
- F21Y2107/30—Light sources with three-dimensionally disposed light-generating elements on the outer surface of cylindrical surfaces, e.g. rod-shaped supports having a circular or a polygonal cross section
-
- 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
- F21Y2107/00—Light sources with three-dimensionally disposed light-generating elements
- F21Y2107/40—Light sources with three-dimensionally disposed light-generating elements on the sides of polyhedrons, e.g. cubes or pyramids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
Abstract
The invention discloses an LED shadowless lamp, wherein an LED light source is directly fixed on a shadowless lamp shell, the heat dissipation of the metal shell is fully utilized, the LED light source is fixed, the light emitting surface of the LED light source is always kept to be distributed in a spherical crown shape, and the uniformity of operation light spots is greatly facilitated. The LED chips are distributed on the metal heat dissipation substrate in a circular ring shape, the LED chips on the circular rings are connected in series, at least one LED chip is arranged in the center of each circular ring, fluorescent powder is coated on each chip, the color temperatures of LED light sources on the same circular ring are the same, and the center of each circular ring is located on the optical axis of the lens. The working current of the LED chips on different rings is changed, and the diameter, the illumination and the color temperature of the operating light spot of the LED shadowless lamp can be adjusted. The invention adopts an all-solid structure design, avoids a complex, easily-floating and easily-damaged mechanical adjusting structure, and has the inherent advantages of light weight, mobility and durability.
Description
Technical Field
The invention relates to the field of medical equipment, in particular to an LED shadowless lamp.
Background
With the successful development and wide use of high-power LEDs, the replacement of traditional incandescent light sources by LED light sources is a necessary trend in the development of shadowless lamps. However, 70-80% of input electric energy of the LED light source is still converted into heat energy during operation, the heat generated by a large amount of electric energy can increase the temperature saving of the LED chip, shorten the service life and even damage the chip, so that the LED light source is always provided with a larger radiator, thus the cost is improved and the weight is also increased invisibly. At present, a housing of the shadowless lamp and a radiator are separated, and whether the metal housing of the shadowless lamp can be used for effectively radiating heat is a significant subject, so that the weight of a lamp holder of the shadowless lamp can be reduced to the minimum on the aspect of product development and design, and the requirement of the lamp holder of the shadowless lamp on the positioning of a suspension arm is also reduced.
The size of an operation light spot is adjusted by changing the spatial distribution curvature of an LED light source in the conventional LED shadowless lamp, and the change of the curvature generally depends on a mechanical structure. Due to the existence of the adjustable structural member, the shadowless lamp has a complex structure, needs to be fixed and carefully treated in the transportation process, is difficult to avoid the phenomena of clamping, damage and the like in the use process, indirectly increases the weight of the shadowless lamp, and is particularly not suitable for being used in outdoor occasions. The LED light source is directly fixed on the rigid shadowless lamp metal shell, has the heat dissipation advantage, but brings a problem of how to adjust the size of the operating light spot of the shadowless lamp.
The invention is the essence of the invention that adjustable structural parts are completely eliminated in the design of the shadowless lamp, a brand new solid state design is adopted, and the size of the light spot can be effectively adjusted.
Disclosure of Invention
The purpose of the invention is as follows: the invention provides a brand-new solid-state design LED shadowless lamp capable of effectively adjusting the size, color temperature and illumination of light spots.
The technical scheme is as follows: in order to achieve the purpose, the technical scheme of the invention is as follows: an LED shadowless lamp comprises a metal upper cover shell, an LED light source, a lens, a suspension arm connecting rod and a control box;
the metal upper cover shell is in a spherical-like shape made of aluminum, copper, iron and stainless steel materials, and the spherical-like shape comprises a spherical crown shape, a flat spherical crown shape and a disc shape; the inner surface of the metal upper cover shell is provided with an LED light source fixing seat and a heat dissipation contact plane;
the LED light source comprises a metal radiating substrate, an LED chip, a lens and fluorescent powder coated on the chip; the copper foil routing of the metal radiating substrate is designed into a plurality of concentric circular rings with different diameters; the LED chips are welded or bonded on copper foil wiring of the radiating substrate, the LED chips on the circular rings with the same diameter are mutually connected in series, the head and the tail of the serial chips are connected with the outer bonding pads, and the LED chip rings with different diameters are mutually opened; at least one LED chip is arranged in the center of the circular ring; the fluorescent powder on the LED chip rings with different diameters is separated in space, and the fluorescent powder on the same diameter can be connected in space; the concentration and the components of the fluorescent powder coated on different LED chip rings can be different, so that luminous rings with different color temperatures are formed;
the LED light source is fixed on the inner surface of the metal upper cover shell; the lens is fixedly positioned on the LED light source heat dissipation substrate or the inner surface of the metal upper cover shell, the center of the annular LED chip ring is positioned on the optical axis at the center of the lens, and the plane formed by the LED chip rings is vertical to the optical axis of the lens;
one end of the suspension arm connecting rod is fixed on the LED shadowless lamp metal shell, and the other end of the suspension arm connecting rod is connected with the shadowless lamp positioning suspension arm; the built-in drive control circuit of the control box can independently control the working current, the working voltage or the pulse width of different LED chip rings;
under the premise of not changing the space position of the metal upper cover shell and the distance between the LED chip and the lens, the size, the illumination and the color temperature of the operating light spot of the LED shadowless lamp are controlled by independently adjusting the working current of the LED chip rings with different diameters on the metal substrate and the existence of the working current of the LED chip rings with different diameters by the driving control circuit in the control box.
Furthermore, the metal heat dissipation base of the LED light source is a cylinder, and a counter bore is formed in the center of the bottom of the cylinder; the LED chip rings are distributed on the side surface of a cylinder in the shape of a circular ring with the same diameter, the LED chips on each circular ring are mutually connected in series, different LED chip rings are mutually open-circuited, and each LED chip ring and the LED chip at the top are connected to respective drive control circuits through connecting wires inside the counter bores of the cylinder; one or a group of LED chips are arranged at the top of the cylinder and are also connected to the drive control circuit through the inner counter bore of the cylinder;
the surface of each LED chip is coated with fluorescent powder, the fluorescent powder on different LED chip rings are separated in space, and the fluorescent powder on the same LED chip ring can be connected in space; the concentration and the components of the fluorescent powder coated on different LED chip rings can be different, so that luminous rings with different color temperatures are formed.
Furthermore, the metal heat dissipation base of the LED light source is a cone frustum, and a counter bore is formed in the center of the bottom of the cone frustum; the LED chip rings are distributed on the side surface of the truncated cone in a ring shape with different diameters, and at least one LED chip is arranged on the top of the truncated cone.
Furthermore, the LED light source is a white light emitting unit formed by red, green and blue LED chips, and the working currents of the red, green and blue LED chips are respectively adjusted to further control the color temperature and the brightness of the white light emitting unit; the white light emitting units are annularly distributed on the surface of the metal substrate plane, the cylinder or the side surface of the truncated cone.
Furthermore, the LED light sources are divided into two color temperature groups, namely high color temperature group and low color temperature group, the working current of the LED light sources is changed, the mixing proportion of the light sources with different color temperatures is further changed, and the color temperature of the LED shadowless lamp is controlled.
Further, the wavelength range of the LED chip is 300-700 nm.
The invention aims to provide an LED shadowless lamp with a novel structure and a corresponding method for controlling surgical facula parameters. All adjustable structural parts are eliminated in the structural design of the shadowless lamp, and the size of an operation light spot is controlled by adopting an all-solid-state design and a method for adjusting the spatial distribution of an LED light-emitting surface.
Has the advantages that: compared with the traditional LED shadowless lamp, the LED shadowless lamp has the following advantages:
1. compared with the common LED shadowless lamp in the market, the LED shadowless lamp directly fixes the LED light source on the shadowless lamp shell, the LED light source is fixed, the light emitting surface of the LED light source is always kept to be distributed in a spherical crown shape, and the uniformity of operation light spots is greatly facilitated.
2. The invention cancels a special radiator of the LED light source, fully utilizes the metal shell for radiating, reduces the weight of the lamp holder of the shadowless lamp to the minimum on the aspect of product development and design, and simultaneously reduces the positioning requirement on the suspension arm of the lamp holder of the shadowless lamp.
3. The invention controls the size of the surgical light spot surface by adjusting the spatial distribution of the LED light emitting surface, the method is novel and unique, and the control of the LED working current is particularly easy to realize.
4. The invention totally cancels adjustable structural members in the structural design of the shadowless lamp, adopts an all-solid-state design, has simple and practical structure, low cost and difficult damage, and is particularly suitable for being used in outdoor occasions.
Drawings
FIG. 1 is a schematic view of a conventional LED shadowless lamp;
FIG. 2 is a schematic view of an LED shadowless lamp of the invention;
FIG. 3 is a schematic diagram of an LED light source according to the present invention;
FIG. 4 is a schematic diagram of an LED chip ring structure of the present invention;
FIG. 5 is a schematic structural diagram of a cylindrical heat dissipation base according to the present invention;
fig. 6 is a schematic structural view of a truncated cone heat dissipation base according to the present invention.
Wherein: the LED light source comprises a metal upper cover shell 1, a heat radiator 2, an LED light source 3, a metal heat dissipation substrate 301, a lens 302, an LED chip 303, a fixing nut 304, fluorescent powder 305, an optical axis 306, a light spot adjusting handle 4, a movable frame 5, a suspension arm 6, a suspension arm connecting rod 7, a control box 8, an LED chip ring 9, a cylindrical metal heat dissipation base 10, a counter bore 11 and a truncated cone metal heat dissipation base 12.
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.
Detailed description of the preferred embodiment
Fig. 1 is a schematic view of a common LED shadowless lamp structure, which generally includes a metal upper cover housing 1, a heat sink 2 dedicated to an LED light source, an LED light source 3, a light spot adjusting handle 4, a movable frame 5, a suspension arm 6, a suspension arm connecting rod 7, a control box 8, and the like, wherein each LED light source 3 is provided with the heat sink 2, and the movable frame 5 is rotated by adjusting the light spot adjusting handle 4, so as to adjust the size of a converged light spot, and the design makes the weight of the LED shadowless lamp heavier, and a relatively complex mechanical rotating structure exists. The LED shadowless lamp comprises a metal upper cover shell 1, an LED light source 3, a suspension arm connecting rod 7, a control box 8, a suspension arm 6 and the like, and fig. 2 is a schematic structural diagram of the LED shadowless lamp. In fig. 2, the metal upper cover casing 1 is a spherical cap casing made of an aluminum metal material, and the LED light source 3 is fixed on the inner surface of the metal upper cover casing by a fixing nut 304. The LED light source 3 includes a metal heat-dissipating substrate 301, a lens 302, an LED chip 303 and a phosphor 305 coated on the chip, and fig. 3 is a schematic structural diagram of the LED light source of the present invention. The copper foil routing of the metal heat dissipation substrate 301 is designed into a plurality of concentric circular rings with different diameters. The LED chips 303 are welded or bonded on copper foil wiring of the metal radiating substrate 301, the LED chips 303 are connected in series on the circular rings with the same diameter, the head and the tail of the serial chips are connected with the outer bonding pads, and the LED chip rings 9 on different diameters are mutually opened. At least one LED chip 303 is disposed in the center of the circular ring, and fig. 4 is a schematic view of the structure of the LED chip ring of the present invention. The LED chip ring 9 is centered on the optical axis 306 at the center of the lens 302, and the plane formed by the LED chip rings 9 is perpendicular to the optical axis 306 of the lens 302. The phosphors 305 on different diameter LED chip rings 9 are spatially separated, while the phosphors 305 on the same diameter can be spatially connected. The concentration and composition of the phosphor 305 coated by the LED rings 9 with different diameters can be different, so that luminous rings with different color temperatures can be formed. One end of the suspension arm connecting rod 7 is fixed on the LED shadowless lamp metal shell 1, and the other end of the suspension arm connecting rod is connected with the fixed suspension arm 6 of the shadowless lamp. The built-in drive control circuit of the control box 8 can independently control the working current, the working voltage or the pulse width of the LED chip rings 9 with different diameters.
On the premise of not changing the space position of the metal upper cover shell 1 and the distance between the LED chips 303 and the lens 302, the size, the illumination and the color temperature of the operating light spots of the LED shadowless lamp are controlled by independently adjusting the working current of the LED chips 303 with different diameters and the existence of the working current of the LED chips 303 through the driving control circuit in the control box 8.
Detailed description of the invention
The structure and the composition of the LED shadowless lamp are basically the same as those of the first embodiment, the metal heat dissipation base of the LED light source 3 is a cylinder 10, and the center of the bottom of the cylinder is provided with a counter bore 11; the LED chip rings 9 are distributed on the side surface of the cylinder 10 in the shape of a circular ring with the same diameter, and fig. 5 is a schematic structural view of the cylindrical heat dissipation base of the present invention. The LED chips 303 on each circular ring are mutually connected in series, different LED chip rings 9 are mutually open-circuited, and each LED chip ring 9 is connected to a respective drive control circuit through a connecting wire in the cylindrical counter bore 11; the top of the cylinder 10 has one or a group of LED chips 303, which are also connected to the driving control circuit through the inner counterbore 11 of the cylinder 10.
Detailed description of the preferred embodiment
The metal radiating base of the LED light source is a truncated cone 12, and a counter bore 11 is formed in the center of the bottom of the truncated cone 12; the LED chip rings 9 are annularly distributed on the side surface of the truncated cone 12 in different diameters, and fig. 6 is a schematic structural view of the truncated cone heat dissipation base of the present invention. The LED chips 303 on each circular ring are connected in series, different LED chip rings 9 are mutually open-circuited, and each LED chip ring 9 is connected to a respective drive control circuit through the internal connecting wire of the cone-shaped counter bore 11. The LED light sources 3 on one LED shadowless lamp are divided into two high and low color temperature groups, the corresponding color temperatures are respectively 3500K and 5000K, the working currents of the LED light sources 3 with different color temperature groups are changed, the mixing proportion of the LED light sources 3 with different color temperatures is further changed, and the color temperature of the LED shadowless lamp is controlled to be continuously changed from 3500K to 5000K. The working current of the LED chip ring 9 of the 8 th group is adjusted from 0 to 250mA, and the diameter of the operation light spot of the LED shadowless lamp is increased from 10cm to 35 cm.
Compared with the common LED shadowless lamp in the market, the LED shadowless lamp directly fixes the LED light source on the shadowless lamp shell, the LED light source is fixed, the light emitting surface of the LED light source is always kept to be distributed in a spherical crown shape, and the uniformity of operation light spots is greatly facilitated.
The invention cancels a special radiator of the LED light source, fully utilizes the metal shell for radiating, reduces the weight of the lamp holder of the shadowless lamp to the minimum on the aspect of product development and design, and simultaneously reduces the positioning requirement on the suspension arm of the lamp holder of the shadowless lamp. The invention controls the size of the surgical light spot surface by adjusting the spatial distribution of the LED light emitting surface, the method is novel and unique, and the control of the LED working current is particularly easy to realize. The invention totally cancels adjustable structural members in the structural design of the shadowless lamp, adopts an all-solid-state design, has simple and practical structure, low cost and difficult damage, and is particularly suitable for being used in outdoor occasions.
Claims (6)
1. An LED shadowless lamp which is characterized in that: the shadowless lamp comprises a metal upper cover shell, an LED light source, a lens, a suspension arm connecting rod and a control box;
the metal upper cover shell is in a spherical-like shape made of aluminum, copper, iron and stainless steel materials, and the spherical-like shape comprises a spherical crown shape, a flat spherical crown shape and a disc shape; the inner surface of the metal upper cover shell is provided with an LED light source fixing seat and a heat dissipation contact plane;
the LED light source comprises a metal radiating substrate, an LED chip, a lens and fluorescent powder coated on the chip; the copper foil routing of the metal radiating substrate is designed into a plurality of concentric circular rings with different diameters; the LED chips are welded or bonded on copper foil wiring of the radiating substrate, the LED chips on the circular rings with the same diameter are mutually connected in series, the head and the tail of the serial chips are connected with the outer bonding pads, and the LED chip rings with different diameters are mutually opened; at least one LED chip is arranged in the center of the circular ring; the fluorescent powder on the LED chip rings with different diameters is separated in space, and the fluorescent powder on the same diameter can be connected in space; the concentration and the components of the fluorescent powder coated on different LED chip rings can be different, so that luminous rings with different color temperatures are formed;
the LED light source is fixed on the inner surface of the metal upper cover shell; the lens is fixedly positioned on the LED light source heat dissipation substrate or the inner surface of the metal upper cover shell, the center of the annular LED chip ring is positioned on the optical axis at the center of the lens, and the plane formed by the LED chip rings is vertical to the optical axis of the lens;
one end of the suspension arm connecting rod is fixed on the LED shadowless lamp metal shell, and the other end of the suspension arm connecting rod is connected with the shadowless lamp positioning suspension arm; the built-in drive control circuit of the control box can independently control the working current, the working voltage or the pulse width of different LED chip rings;
under the premise of not changing the space position of the metal upper cover shell and the distance between the LED chip and the lens, the size, the illumination and the color temperature of the operating light spot of the LED shadowless lamp are controlled by independently adjusting the working current of the LED chip rings with different diameters on the metal substrate and the existence of the working current of the LED chip rings with different diameters by the driving control circuit in the control box.
2. The LED shadowless lamp of claim 1, wherein: the metal heat dissipation base of the LED light source is a cylinder, and a counter bore is formed in the center of the bottom of the cylinder; the LED chip rings are distributed on the side surface of a cylinder in the shape of a circular ring with the same diameter, the LED chips on each circular ring are mutually connected in series, different LED chip rings are mutually open-circuited, and each LED chip ring and the LED chip at the top are connected to respective drive control circuits through connecting wires inside the counter bores of the cylinder; one or a group of LED chips are arranged at the top of the cylinder and are also connected to the drive control circuit through the inner counter bore of the cylinder;
the surface of each LED chip is coated with fluorescent powder, the fluorescent powder on different LED chip rings are separated in space, and the fluorescent powder on the same LED chip ring can be connected in space; the concentration and the components of the fluorescent powder coated on different LED chip rings can be different, so that luminous rings with different color temperatures are formed.
3. The LED shadowless lamp of claim 1, wherein: the metal radiating base of the LED light source is a truncated cone, and a counter bore is formed in the center of the bottom of the truncated cone; the LED chip rings are distributed on the side surface of the truncated cone in a ring shape with different diameters, and at least one LED chip is arranged on the top of the truncated cone.
4. The LED shadowless lamp of claim 1, 2 or 3, wherein: the LED light source is a white light emitting unit formed by red, green and blue LED chips, and the working currents of the red, green and blue LED chips are respectively adjusted to further control the color temperature and the brightness of the white light emitting unit; the white light emitting units are annularly distributed on the surface of the metal substrate plane, the cylinder or the side surface of the truncated cone.
5. The LED shadowless lamp of claim 4, wherein: the LED light sources are divided into two color temperature groups, the working current of the LED light sources is changed, the mixing proportion of the light sources with different color temperatures is further changed, and the color temperature of the LED shadowless lamp is controlled.
6. The LED shadowless lamp of claim 4, wherein: the wavelength range of the LED chip is 300-700 nm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010185627.4A CN111306485A (en) | 2020-03-17 | 2020-03-17 | LED shadowless lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010185627.4A CN111306485A (en) | 2020-03-17 | 2020-03-17 | LED shadowless lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111306485A true CN111306485A (en) | 2020-06-19 |
Family
ID=71149831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010185627.4A Pending CN111306485A (en) | 2020-03-17 | 2020-03-17 | LED shadowless lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111306485A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201322204Y (en) * | 2008-12-26 | 2009-10-07 | 广州市鸿利光电子有限公司 | Dynamic white light LED spot lamp |
| CN103277681A (en) * | 2013-05-23 | 2013-09-04 | 云南邦桥节能科技有限公司 | Operation shadowless lamp |
| CN104538388A (en) * | 2014-12-11 | 2015-04-22 | 佛山市国星光电股份有限公司 | Packaging method of LED light source adjustable in color temperature |
| CN106764501A (en) * | 2017-01-23 | 2017-05-31 | 北京莱斯达电子科技股份有限公司 | A kind of adjustable color temperature LED spotlights |
| CN107654904A (en) * | 2017-11-08 | 2018-02-02 | 山东朱氏堂医疗器械有限公司 | A kind of digitized LED shadowless lamps of light source parameters |
-
2020
- 2020-03-17 CN CN202010185627.4A patent/CN111306485A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201322204Y (en) * | 2008-12-26 | 2009-10-07 | 广州市鸿利光电子有限公司 | Dynamic white light LED spot lamp |
| CN103277681A (en) * | 2013-05-23 | 2013-09-04 | 云南邦桥节能科技有限公司 | Operation shadowless lamp |
| CN104538388A (en) * | 2014-12-11 | 2015-04-22 | 佛山市国星光电股份有限公司 | Packaging method of LED light source adjustable in color temperature |
| CN106764501A (en) * | 2017-01-23 | 2017-05-31 | 北京莱斯达电子科技股份有限公司 | A kind of adjustable color temperature LED spotlights |
| CN107654904A (en) * | 2017-11-08 | 2018-02-02 | 山东朱氏堂医疗器械有限公司 | A kind of digitized LED shadowless lamps of light source parameters |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101039073B1 (en) | Radiator and Bulb Type LED Lighting Apparatus Using the Same | |
| JP2012518254A (en) | LED bulbs for space lighting | |
| JP2013524532A (en) | Light emitting device and system having adjustable chromaticity and method for adjusting chromaticity of light emitting device and system | |
| CN102128381B (en) | LED (Light-Emitting Diode) lamp bulb with high lighting effect | |
| CN203743911U (en) | Light-emitting apparatus, bulb lamp and lighting apparatus | |
| CN105972462A (en) | Color-temperature-adjustable LED bulb lamp | |
| CN104033812B (en) | The LED lamp affixed to the ceiling of wall switch formula light modulation toning | |
| CN201096332Y (en) | LED lighting lamp directly switching 220v alternating-current electric network | |
| CN201661875U (en) | High-brightness LED lamp | |
| CN101498410B (en) | LED operation shadowless lamp | |
| CN205782075U (en) | A kind of LED plant tissue culture special lamp | |
| CN111306485A (en) | LED shadowless lamp | |
| CN103883934A (en) | High-tension LED spotlight | |
| CN212390314U (en) | Lamp set | |
| CN201373308Y (en) | LED operating astral lamp | |
| KR20150025667A (en) | Lighting device | |
| CN106015985A (en) | LED bulb lamp capable of achieving all-angle light emitting | |
| CN207865116U (en) | double-layer ceiling lamp with lens | |
| CN202040631U (en) | High-power light-emitting diode (LED) lamp | |
| CN207378508U (en) | A kind of Novel LED bulkhead lamp module | |
| CN201992489U (en) | Light-adjustable light-emitting diode (LED) PAR 30 spotlight | |
| CN200941393Y (en) | Metal encapsulating structure of superlarge power LED | |
| CN110296376A (en) | A method of adjusting LED shadowless lamp hot spot | |
| TWI591288B (en) | Detachable bulb | |
| CN217402365U (en) | One-way high-power LED center line lamp |
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 |
Application publication date: 20200619 |
|
| RJ01 | Rejection of invention patent application after publication |