CN104930460B - A kind of light-emitting device of LED desk lamp - Google Patents
A kind of light-emitting device of LED desk lamp Download PDFInfo
- Publication number
- CN104930460B CN104930460B CN201510313662.9A CN201510313662A CN104930460B CN 104930460 B CN104930460 B CN 104930460B CN 201510313662 A CN201510313662 A CN 201510313662A CN 104930460 B CN104930460 B CN 104930460B
- Authority
- CN
- China
- Prior art keywords
- lens
- yeast
- troops
- incidence
- light
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
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
- F21S6/00—Lighting devices intended to be free-standing
- F21S6/002—Table lamps, e.g. for ambient lighting
-
- 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
- F21V13/00—Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V1/00 - F21V11/00
- F21V13/02—Combinations of only two kinds of elements
- F21V13/10—Combinations of only two kinds of elements the elements being reflectors and screens
-
- 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
-
- 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
- F21V5/04—Refractors for light sources of lens shape
Abstract
The invention belongs to LED illumination device field, specially a kind of light-emitting device of LED desk lamp, including installation panel, LED light source and lens；LED light source and lens are installed on installation panel, and the lens cavity of a side opening is equipped in the middle part of lens, and lens cavity coats LED light source；It is the plane of incidence of LED light source, lens and its exit facet that opposite outer surface is LED light source that is open on the inside of lens cavity；Exit facet and the plane of incidence all have yeast and command troops to command troops with Chinese yeast along the longitudinal direction, and the yeast of exit facet is commanded troops corresponding with the position that the Chinese yeast of the plane of incidence is commanded troops, and the Chinese yeast of exit facet is commanded troops corresponding with the position that the yeast of the plane of incidence is commanded troops.Compared with prior art, the present invention makes the light of the injection of light-emitting device command troops to tilt to the yeast of exit facet, to make to be formed in the hot spot of shadow surface correspondingly biased forwards, this inclined light projector mode, not only make irradiation area closer to the reading area of user, and human eye is avoided to be in direct contact with light, dazzle can be effectively prevented.
Description
Technical field
The invention belongs to LED illumination device field, specially a kind of light-emitting device of LED desk lamp.
Background technology
Since LED illumination device has the advantages that color rendering is good, light efficiency is high, service life is long, energy-saving safe etc. is a series of,
LED illumination device is widely used in room lighting field by people.
Using in the interior illumination fixture of LED, LED desk lamp is more common lighting apparatus, since people can use
Desk lamp carries out the reading or work of long period, how to improve the comfort of desk lamp illumination, is always that those skilled in the art grind
The emphasis of hair.Using traditional light projector mode due to being limited by structure, people generally require existing LED desk lamp when reading
The lamp cap of desk lamp is tilted upwards, enable light invest oneself reading or work region, but this significantly tilt lamp
The mode of head, will produce the light of direct projection human eye, causes serious dazzle.In addition center light is presented in LED desk lamp light source emergent light
The uniformity of illuminance of the characteristics of drastically successively decreasing to surrounding by force, emergent light spot is low, leads to brightness in the user visual field very not
Uniformly.Therefore, existing LED desk lamp not only be easy to cause the visual fatigue of user, but also long-time service can influence user
Eyesight.
Invention content
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of light projector directions to lean forward, it is uniform to show up, prevents
The light-emitting device of the LED desk lamp of dazzle.
In order to solve the above-mentioned technical problem, the present invention uses following technical scheme：A kind of light-emitting device of LED desk lamp, packet
Include installation panel, LED light source and lens；LED light source and lens are installed on installation panel, are opened equipped with side in the middle part of the lens
The lens cavity of mouth, the lens cavity coat the LED light source；It is the plane of incidence of LED light source, institute on the inside of the lens cavity
State lens and its exit facet that opposite outer surface is LED light source that is open；The exit facet and the plane of incidence have along the longitudinal direction
There is yeast to command troops to command troops with Chinese yeast, the yeast of the exit facet command troops it is corresponding with the position that the Chinese yeast of the plane of incidence is commanded troops, it is described
The position that the Chinese yeast of exit facet is commanded troops with the yeast of the plane of incidence is commanded troops is corresponding.
Compared with prior art, the setting that the present invention is staggered by the large and small curvature portion of the plane of incidence and exit facet, can make
The emergent ray of light-emitting device commands troops to tilt to the yeast of exit facet, to make the hot spot for being formed in shadow surface to correspondingly preceding inclined
It moves, the underface of the present apparatus is deviateed in the region of light-emitting device projection.Ray obliquity can be realized in this lamp cap elevation angle that varies without
Light projector mode, light source will not be exposed, and human eye is avoided to be in direct contact with light, can be effectively prevented dazzle.It can also be achieved simultaneously
Make the uniform effect of the light distribution of hot spot.
Further, the LED light source is positioned close to the Chinese yeast of the plane of incidence and commands troops corresponding position, LED light source to be made to arrive
The distance that plane of incidence Chinese yeast is commanded troops is less than the distance that LED light source is commanded troops to plane of incidence yeast.After above structure optimizes, LED
Most of light that light source is sent out leads an army into lens from plane of incidence Chinese yeast, then commands troops to project from the yeast of exit facet, to
The light projector of the light-emitting device of LED desk lamp is set to obtain better inclination angle.
Further, the light-emitting device commands troops to command troops to tilt upward to yeast from the Chinese yeast of exit facet, makes LED desk lamp
The light projector direction of light-emitting device makes the irradiation area of light-emitting device closer to the reading area of user to Forward.
Preferably, the angle of inclination of the light-emitting device is less than or equal to 15 degree, in the irradiated region for making light-emitting device as far as possible
Domain avoids LED light source angle of inclination excessive, causes dazzle closer on the basis of the reading area of user.
Further, further include shading piece, the shading piece is set to the outside of the lens.The shading piece can make LED
The light-emitting device projecting direction of desk lamp is more concentrated, and the hot spot that the light-emitting device of LED desk lamp is formed is made to have apparent boundary line, and
It is evenly distributed, while can also prevent light trend of purchasing and the close region of human eye, to further increase anti-dazzle light effect.
Further, the shading piece includes front apron, and is symmetrically disposed on the side shield of the front apron both sides；Institute
State the outside for the front end that the yeast of the exit facet that front apron is set to the lens is commanded troops；The side shield is set to the lens
Both sides.The rear end that the front end that the yeast of the distance between two side shields from the exit facet of lens is commanded troops is commanded troops to its Chinese yeast by
It is cumulative big.The shading piece uses the cooperation of above-mentioned set-up mode and lens, makes the light-emitting device of LED desk lamp in horizontal projection surface
One rectangular light spot of upper formation and our common reading matters, such as newspaper, magazine, books shape are adapted, while and common
Desk, desk shape are adapted.
Further, the curvature on the horizontal direction in the middle part of the exit facet is less than on the horizontal direction in the middle part of the plane of incidence
Curvature.LED light source is set to emit beam after lens reflect, from the refraction angle bigger of lens both sides emergent ray, to increase
The projected area of light-emitting device transverse direction.
Further, the curvature on the horizontal direction of the exit facet both sides is more than on the horizontal direction of plane of incidence both sides
Curvature makes LED light source emit beam after lens reflect using this kind of design method, equably invests the middle part of projected area
And both sides, so that the light-emitting device of LED desk lamp is projected the hot spot brightness to be formed more uniform.
Further, the plane of incidence is laid with erosion line, the light spot illumination distribution for making the light-emitting device of LED desk lamp project
Evenly.
Description of the drawings
Fig. 1 is the light-emitting device stereogram of LED desk lamp；
Fig. 2 is the light-emitting device sectional view of LED desk lamp；
Fig. 3 is the light-emitting device application state figure of LED desk lamp；
Fig. 4 is a-quadrant enlarged drawing in Fig. 3.
Fig. 5 is lens upward view；
Fig. 6 is sectional view of the lens along Fig. 5 at C.
Specific implementation mode
" yeast command troops front end " of the present invention and " Chinese yeast command troops rear end ", refers to from being carried out from the visual angle of Fig. 2, going out
The left end for penetrating face is " yeast command troops front end ", and the right end of exit facet is " Chinese yeast command troops rear end "." longitudinal direction side of the present invention
To " refer to from being carried out from the visual angle of Fig. 2, left end to the direction of exit facet right end of exit facet is longitudinal；It is of the present invention
" horizontal direction " refers to from being carried out from the visual angle of Fig. 5, and left end to the direction of lens right end of lens is laterally；Above orientation
Word and term are intended merely to more easily describe technical scheme of the present invention, do not constitute any limit to technical scheme of the present invention
System.
Below in conjunction with the specific implementation mode of the description of the drawings present invention.
Referring to Fig. 1 to Fig. 3, a kind of light-emitting device of LED desk lamp provided by the invention, including installation panel 1, LED light source 2
With lens 3；LED light source 2 and lens 3 are installed on installation panel 1, and 3 middle part of the lens is equipped with the lens cavity of a side opening
301, the lens cavity 301 coats the LED light source 2；301 inside of the lens cavity is the plane of incidence 201 of LED light source 2,
The lens 3 and its exit facet 202 that opposite outer surface is LED light source 2 that is open；201 edge of the exit facet 202 and the plane of incidence
Longitudinal direction all has yeast and commands troops to command troops with Chinese yeast, and the yeast of the exit facet 202 commands troops to command troops with the Chinese yeast of the plane of incidence 201
Position it is corresponding, the Chinese yeast of the exit facet 202 is commanded troops corresponding with the position that the yeast of the plane of incidence 201 is commanded troops.
Compared with prior art, lens of the invention are staggered by the plane of incidence 201 and 202 large and small curvature portion of exit facet
Setting, can make the emergent ray of light-emitting device command troops to tilt to the yeast of exit facet 202, to make the light for being formed in shadow surface
Spot correspondingly biased forwards.The region that light-emitting device projects is set to deviate the underface of the present apparatus, it is this to vary without the lamp cap elevation angle
The light projector mode of Ray obliquity can be realized, light source will not be exposed, and human eye is avoided to be in direct contact with light, can be effectively prevented dizzy
Light.
Referring to Fig. 2 to Fig. 4, the Chinese yeast that the LED light source 2 is positioned close to the plane of incidence 201 is commanded troops corresponding position, so that
The distance that LED light source 2 is commanded troops to 201 Chinese yeast of the plane of incidence is less than the distance that LED light source 2 is commanded troops to the yeast of the plane of incidence 201.By
Above structure optimization after, most of light that LED light source 2 is sent out leads an army into lens 3 from the Chinese yeast of the plane of incidence 201, then from
The yeast of exit facet 202 commands troops to project, to make the light projector of the light-emitting device of LED desk lamp obtain better inclination angle.
As an improvement scheme, the light-emitting device commands troops to command troops to tilt upward to yeast from 202 Chinese yeast of exit facet, makes
The light projector direction of the light-emitting device of LED desk lamp makes the irradiation area of light-emitting device closer to the reading area of user to Forward.
The angle of inclination of the light-emitting device is less than or equal to 15 degree, in the irradiation area for making light-emitting device as far as possible closer to user's
It avoids LED light source angle of inclination excessive on the basis of reading area, causes dazzle.
Further include shading piece 4 referring to Fig. 1 to 3, the shading piece 4 is set to the outside of the lens 3.4 energy of the shading piece
So that the light-emitting device projecting direction of LED desk lamp is more concentrated, makes the hot spot that the light-emitting device of LED desk lamp is formed that there is apparent boundary
Line, and be evenly distributed, while can also prevent light from investing human eye, to further increase anti-dazzle light effect.The shading piece 4
Including front apron 401, and it is symmetrically disposed on the side shield 402 of 401 both sides of the front apron；The front apron 401 is set to
The outside for the front end that the yeast of the exit facet 202 of the lens 3 is commanded troops；The side shield 402 is set to the two of the lens 3
Side.After the front end that the yeast of the distance between two side shields 402 from the exit facet 202 of lens 3 is commanded troops is commanded troops to its Chinese yeast
End gradually increases.The shading piece 4 makes the light-emitting device of LED desk lamp in level using the cooperation of above-mentioned set-up mode and lens 3
A rectangular light spot is formed on projection surface and our common reading matters, such as newspaper, magazine, books shape are adapted, while and
Common desk, desk shape are adapted.
Referring to Fig. 5 and Fig. 6, the curvature on the horizontal direction at 202 middle part of the exit facet is less than the cross at 201 middle part of the plane of incidence
Curvature on direction.LED light source is set to emit beam after the refraction of lens 3, more from the refraction angle of 3 both sides emergent ray of lens
Greatly, to increase the projected area of light-emitting device transverse direction.Curvature on the horizontal direction of 202 both sides of the exit facet is more than incidence
Curvature on the horizontal direction of 201 both sides of face makes LED light source emit beam after the refraction of lens 3 using this kind of design method,
The middle part and both sides for equably investing projected area, make the light-emitting device of LED desk lamp project the hot spot brightness to be formed more uniform.
Preferably, the plane of incidence 201 is laid with erosion line, makes the hot spot that the light-emitting device of LED desk lamp projects evenly.
According to the disclosure and teachings of the above specification, those skilled in the art in the invention can also be to above-mentioned embodiment party
Formula is changed and is changed.Therefore, the invention is not limited in specific implementation modes disclosed and described above, to the present invention's
Some modifications and changes should also be as falling into the scope of the claims of the present invention.In addition, although being used in this specification
Some specific terms, these terms are merely for convenience of description, does not limit the present invention in any way.
Claims (7)
1. a kind of light-emitting device of LED desk lamp, including installation panel, LED light source and lens；LED light source and lens are installed on
It fills on panel, the lens cavity of a side opening is equipped in the middle part of the lens, the lens cavity coats the LED light source；It is described
It is the plane of incidence of LED light source, the lens and its exit facet that opposite outer surface is LED light source that is open on the inside of lens cavity；
It is characterized in that：The exit facet and the plane of incidence all have yeast and command troops to command troops with Chinese yeast along the longitudinal direction, the exit facet
The position that yeast is commanded troops with the Chinese yeast of the plane of incidence is commanded troops is corresponding, and the Chinese yeast of the exit facet commands troops to command troops with the yeast of the plane of incidence
Position it is corresponding；
The curvature on horizontal direction in the middle part of the exit facet is less than the curvature on the horizontal direction in the middle part of the plane of incidence；
Curvature on the horizontal direction of the exit facet both sides is more than the curvature on the horizontal direction of plane of incidence both sides.
2. a kind of light-emitting device of LED desk lamp according to claim 1, it is characterised in that：LED light source setting by
The position that the Chinese yeast of the nearly plane of incidence is commanded troops, the distance that LED light source to plane of incidence Chinese yeast is commanded troops are less than LED light source to plane of incidence yeast
The distance commanded troops.
3. a kind of light-emitting device of LED desk lamp according to claim 1, it is characterised in that：The light-emitting device is emitted certainly
The Chinese yeast in face commands troops to command troops to tilt upward to yeast.
4. a kind of light-emitting device of LED desk lamp according to claim 3, it is characterised in that：The inclination of the light-emitting device
Angle is less than or equal to 15 degree.
5. a kind of light-emitting device of LED desk lamp according to claim 1, it is characterised in that：Further include shading piece, the screening
Light part is set to the outside of the lens.
6. a kind of light-emitting device of LED desk lamp according to claim 5, it is characterised in that：The shading piece includes front
Plate, and it is symmetrically disposed on the side shield of the front apron both sides；The front apron is set to the big of the exit facet of the lens
The outside of the front end in curvature portion；The side shield is set to the both sides of the lens, and the distance between two side shields are from lens
The rear end commanded troops to its Chinese yeast of the front end commanded troops of yeast of exit facet gradually increase.
7. a kind of light-emitting device of LED desk lamp according to claim 1, it is characterised in that：The plane of incidence is laid with erosion
Line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510313662.9A CN104930460B (en) | 2015-06-08 | 2015-06-08 | A kind of light-emitting device of LED desk lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510313662.9A CN104930460B (en) | 2015-06-08 | 2015-06-08 | A kind of light-emitting device of LED desk lamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104930460A CN104930460A (en) | 2015-09-23 |
| CN104930460B true CN104930460B (en) | 2018-09-07 |
Family
ID=54117747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510313662.9A Active CN104930460B (en) | 2015-06-08 | 2015-06-08 | A kind of light-emitting device of LED desk lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104930460B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110207048A (en) * | 2019-05-09 | 2019-09-06 | 深圳市邦贝尔电子有限公司 | A kind of dedicated glare prevention LED High-Pole Lamp tool in airport |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204665159U (en) * | 2015-06-08 | 2015-09-23 | 佛山冠今光电科技有限公司 | A kind of light-emitting device of LED desk lamp |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2265859A1 (en) * | 2008-04-03 | 2010-12-29 | Koninklijke Philips Electronics N.V. | Luminaire for illuminating a space underneath a ceiling or a canopy, and method of illuminating such a space |
| CN202253363U (en) * | 2011-07-12 | 2012-05-30 | 东莞巨扬电器有限公司 | Advertising lamp lens |
| CN203273494U (en) * | 2013-06-07 | 2013-11-06 | 陈琦 | Table lamp with multiple illuminating modes |
| CN103335276B (en) * | 2013-07-26 | 2015-08-12 | 苏州东山精密制造股份有限公司 | A kind of LED street lamp lens and LED street lamp system |
| CN104654088A (en) * | 2013-11-16 | 2015-05-27 | 李绍勤 | Local light blocking table lamp |
-
2015
- 2015-06-08 CN CN201510313662.9A patent/CN104930460B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204665159U (en) * | 2015-06-08 | 2015-09-23 | 佛山冠今光电科技有限公司 | A kind of light-emitting device of LED desk lamp |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104930460A (en) | 2015-09-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111503558A (en) | High degree of consistency L ED blackboard lamp lens of low coverage installation | |
| CN106855207A (en) | A kind of LED blackboard lightses of high brightness and high evenness | |
| CN206459105U (en) | A kind of anti-dazzle embedded LED Ceiling light | |
| CN104930460B (en) | A kind of light-emitting device of LED desk lamp | |
| CN205424830U (en) | Spreadlight lens and have illumination lamps and lanterns of this spreadlight lens | |
| CN204986641U (en) | Reflective blackboard lamp | |
| WO2024067239A1 (en) | Subtraction table lamp | |
| CN206593020U (en) | Light shield optical module | |
| CN204665159U (en) | A kind of light-emitting device of LED desk lamp | |
| CN105715997A (en) | LED floodlight | |
| CN206592942U (en) | A kind of LED blackboard lightses of high brightness and high evenness | |
| CN215982368U (en) | Optical structure and lamp structure | |
| CN207569783U (en) | A kind of lens | |
| CN203784727U (en) | Optical element and lighting system | |
| CN215001409U (en) | Reflector and lamp structure | |
| CN202281085U (en) | Light-emitting diode (LED) bulb lamp with anti-glare structure | |
| CN208750472U (en) | A kind of LED light-projecting type desk lamp | |
| CN208620106U (en) | A kind of LED light-projecting type desk lamp | |
| CN207298521U (en) | Light guide plate and desk lamp at the top of desk lamp | |
| CN205372262U (en) | LED (light -emitting diode) projection lamp | |
| CN104728647A (en) | Bulb | |
| CN215929384U (en) | Blackboard lamp provided with optical assembly | |
| CN211289928U (en) | LED wall washer | |
| CN208983265U (en) | A kind of high brightness is biased to the LED lens mould group of illumination | |
| CN211502540U (en) | Light emitting structure of downward lighting type lamp |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A light emitting device of LED desk lamp Effective date of registration: 20201214 Granted publication date: 20180907 Pledgee: Shunde Guangdong rural commercial bank Limited by Share Ltd. Daliang branch Pledgor: FOSHAN TOPDAY OPTOELECTRONICS TECHNOLOGY Co.,Ltd. Registration number: Y2020980009231 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20211217 Granted publication date: 20180907 Pledgee: Shunde Guangdong rural commercial bank Limited by Share Ltd. Daliang branch Pledgor: FOSHAN TOPDAY OPTOELECTRONICS TECHNOLOGY Co.,Ltd. Registration number: Y2020980009231 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Light emitting device of LED table lamp Effective date of registration: 20211220 Granted publication date: 20180907 Pledgee: Guangdong Shunde Rural Commercial Bank Co.,Ltd. science and technology innovation sub branch Pledgor: FOSHAN TOPDAY OPTOELECTRONICS TECHNOLOGY Co.,Ltd. Registration number: Y2021980015722 |