CN107477478A - A kind of lighting device - Google Patents
A kind of lighting device Download PDFInfo
- Publication number
- CN107477478A CN107477478A CN201710897781.2A CN201710897781A CN107477478A CN 107477478 A CN107477478 A CN 107477478A CN 201710897781 A CN201710897781 A CN 201710897781A CN 107477478 A CN107477478 A CN 107477478A
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- CN
- China
- Prior art keywords
- lighting device
- light
- ratio
- lens
- face type
- 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.)
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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
- F21S8/08—Lighting devices intended for fixed installation with a standard
- F21S8/085—Lighting devices intended for fixed installation with a standard of high-built type, e.g. street light
- F21S8/086—Lighting devices intended for fixed installation with a standard of high-built type, e.g. street light with lighting device attached sideways of the standard, e.g. for roads and highways
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- 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
- F21V13/04—Combinations of only two kinds of elements the elements being reflectors and refractors
-
- 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
- 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
- F21V3/00—Globes; Bowls; Cover glasses
- F21V3/04—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings
- F21V3/10—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings characterised by coatings
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
- F21W2131/10—Outdoor lighting
- F21W2131/103—Outdoor lighting of streets or roads
-
- 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]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/72—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps in street lighting
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Electroluminescent Light Sources (AREA)
- Led Device Packages (AREA)
Abstract
The invention discloses a kind of lighting device, it includes lamp body, light source module group in the lamp body, and the transmittance section of the covering light source module group, the light source module group, which includes several, has the lens of host cavity and the luminescence unit being housed in the host cavity, the light that the luminescence unit is sent is emitted after the lens luminous intensity distribution by the transmittance section, the transmittance section is tabular, the luminescence unit is after the lens luminous intensity distribution, obtain the first light type, behind the transmittance section again luminous intensity distribution, obtain the second light type, the largest light intensity of first light type and the ratio of central light strength are the first ratio, the largest light intensity of second light type and the ratio of central light strength are the second ratio, the ratio between first ratio and the second ratio are more than 1.1.The lighting device of the present invention, the lens in it enter the light intensity reflected away by transmittance section in the position compensation where largest light intensity so that the light type being finally emitted by transmittance section meets the requirement of target light type.
Description
Technical field
The invention belongs to lighting technical field, more particularly to a kind of lighting device.
Background technology
Existing lighting device, generally have saturating including these basic components of lamp body, light source module group and mask, mask
Photosensitiveness.When the incidence angle for the light being incident on mask is more than some value, a certain proportion of reflection can occurs in it.
Because mask has higher reflectivity for the larger light of incidence angle, the light intensity of the light of wide-angle outgoing exists
By receiving loss during mask, cause difference between the distribution curve flux of the lighting device and the distribution curve flux of light source module group compared with
Greatly, how in the presence of reflectivity, lighting device is obtained distribution curve flux corresponding with target light type, be skill in industry
Art personnel's urgent problem to be solved.
The content of the invention
The invention aims to solve the above problems, there is provided a kind of lighting device, its distribution curve flux are target light type
Corresponding distribution curve flux.
To achieve the above object, the present invention provides a kind of lighting device, and it includes lamp body, the light in the lamp body
The transmittance section of source module and the covering light source module group, the light source module group include several lens and receipts with host cavity
Hold the luminescence unit in the host cavity, the light that the luminescence unit is sent is after the lens luminous intensity distribution by the transmittance section
Outgoing, the transmittance section is tabular,
The luminescence unit obtains the first light type after the lens luminous intensity distribution, after the mask again luminous intensity distribution, obtains
Two light type,
The largest light intensity of first light type and the ratio of central light strength are the first ratio, the largest light intensity of the second light type and center
The ratio of light intensity is the second ratio, and the ratio between the first ratio and the second ratio are more than 1.1.
Further, the angle where the largest light intensity of the light after the lens luminous intensity distribution is between 50 ° -80 °.
Further, the ratio of the largest light intensity of first light type and central light strength is more than 1.8.
Further, the length direction of the lens is longitudinal direction, and the width of the lens is laterally, the lens exists
Central cross-section face type on vertical and horizontal is different.
Further, the central cross-section face type of the lens in the vertical is the first face type, and first face type is axle pair
Figure and its inner surface is referred to as half elliptic.
Further, the ratio between short axle of the host cavity in the first face type and height are less than 1.2.
Further, the ratio between short axle of the host cavity in the first face type and height are 1.
Further, first face type includes the first incidence surface and the first exiting surface, first incidence surface and first
Exiting surface is cambered surface, and the sidepiece thickness of the lens and the ratio of top thickness are between 2~3.
Further, the central cross-section face type of the lens in the horizontal is the second face type, the interior table of second face type
Face is half elliptic, and the outer surface of second face type is curved surface and is zhou duicheng tuxing.
Further, the outer surface of second face type is parallel with the symmetry axis of inner surface.
Further, the ratio between major axis of the host cavity in the second face type and height are more than 6.09.
Further, the ratio between major axis of the host cavity in the second face type and height 6.51.
Further, the transmittance section is made or is made of plastics by glass.
Further, the lighting device also includes light source board, and several described luminescence units are arranged on the light source board
On, the corresponding luminescence unit of the lens or corresponding multiple luminescence units.
Further, the lighting device is street lamp.
Further, the street lamp also includes the driving power component being contained in the lamp body, the driving power group
Part is electrically connected with the light source module group.
Further, the street lamp includes the mask being connected with the lamp body, and the mask includes the transmittance section and painting
Cover portion.
Further, the street lamp also includes lamp stand, and the lamp body is connected on the lamp stand.
Further, the luminescence unit and lens unit are into array distribution.
Further, the lighting device also includes the reflector being arranged in the lamp body, and the reflector is arranged on
The periphery of the light source module group.
Compared to prior art, lighting device of the invention, the lens in it enter in the position compensation where largest light intensity
The light intensity reflected away by transmittance section so that the light type being finally emitted by transmittance section meets the requirement of target light type.
Brief description of the drawings
Accompanying drawing described herein is used for providing a further understanding of the present invention, forms the part of the present invention, this hair
Bright schematic description and description is used to explain the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is the stereogram of the lighting device of the embodiment of the present invention 1；
Fig. 2 is the three-dimensional exploded view of the lighting device of the embodiment of the present invention 1；
Fig. 3 is the schematic cross-section of the lighting device of the embodiment of the present invention 1；
Fig. 4 is the stereogram of the lighting device interior len of the embodiment of the present invention 1；
Fig. 5 is the top view of the lens based on Fig. 4；
Fig. 6 is the sectional view of the line A-A along Fig. 5；
Fig. 7 is the sectional view of the line B-B along Fig. 5；
Fig. 8 is distribution curve flux of the lighting device of the embodiment of the present invention 1 after lens luminous intensity distribution；
Fig. 9 is the distribution curve flux corresponding to target light type of the lighting device of the embodiment of the present invention 1 after mask luminous intensity distribution；
Figure 10 is the stereogram of the lens of the embodiment of the present invention 2；
Figure 11 is the top view of the lens based on Figure 10；
Figure 12 is the sectional view of the line A-A along Figure 11；
Figure 13 is the sectional view of the line B-B along Figure 11.
Embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with the specific embodiment of the invention and
Technical solution of the present invention is clearly and completely described corresponding accompanying drawing.Obviously, described embodiment is only the present invention one
Section Example, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not doing
Go out under the premise of creative work the every other embodiment obtained, belong to the scope of protection of the invention.
Embodiment 1
With reference to shown in Fig. 1 to Fig. 9, the embodiment of the present invention 1 provides a kind of lighting device 100, including lamp body 1, is arranged on
The mask 4 of light source module group and covering light source module group in lamp body 1, wherein, light source module group includes luminescence component 2 and is luminous
Component 2 carries out several lens 3 of luminous intensity distribution, and the light being emitted from lens 3 is emitted by mask 4.Photograph provided in an embodiment of the present invention
Bright device 100 is applicable as street lamp, and radiator 5, reflector 6 and driving power component (not shown) are also equipped with lamp body 1,
Packing ring 7 is additionally provided between lamp body 1 and mask 4.
Configuration between each element and element in lighting device 100 provided below for the embodiment of the present invention 1 is closed
It is to illustrate.
Shown in Figure 2, lamp body 1 houses formed with receiving space, luminescence component 2, lens 3, radiator 5, reflector 6
In the receiving space, wherein, radiator 5 is arranged on the lower section of luminescence component 2, and reflector 6 is arranged on the periphery of light source module group.
In the present embodiment, reflector 6 is diffusing reflection, because the luminescence component 2 of the present embodiment is sunk to the bottom a little, in order to further improve light
The light extraction efficiency of source module, just there is provided reflector 6 so that the light that the fraction light source module group not being radiated on mask 4 is sent
Line can reflex to mask 4 by reflector 6, by the light extraction of mask 4.In other alternate embodiments, the position of luminescence component 2
In the case of the bottom level of mask 4, reflector 6 can be not provided with.
Mask 4 includes the transmittance section 41 corresponding with light source module group and the painting part 42 corresponding not with light source module group.
Transmittance section 41 is clear glass, and its light that light source module group is sent normally passes through.Painting part 42 is on clear glass
One layer of opaque material is coated, is covered with the part to the gauge without light source module inside lamp body 1 so that light fixture is more beautiful
See.The preferred high temperature resistant material of transparent materials that painting part 42 coats, when it can prevent that light fixture is operated in higher temperature, coat material
Material comes off or aging.Fig. 1 simply schematically show a kind of tension type arc mask, but the shape of mask 4 not office
It is limited to tension type, as long as meeting the condition of incidence angle, the arc of mask 4 can be irregular.
Referring to shown in Fig. 2 and Fig. 3, luminescence component 2 includes light source board 21 and lighted with several being arranged on light source board 21
Unit 22.Luminescence unit 22 can be arranged as a row, can also be arranged as several rows, and in the present embodiment, luminescence unit 22 is into battle array
Row mode is arranged on light source board 21.A lens 3 are correspondingly arranged on each luminescence unit 22.Luminescence unit 22 is LED light
Source., can be with the corresponding lens 3 of multiple luminescence units 22 in other alternate embodiments.
The collecting formed is set referring to shown in Fig. 3 to Fig. 7, lens 3 have inner surface 31, outer surface 32 and enclosed by inner surface 31
Chamber 30, luminescence unit 22 are contained in host cavity 30.Referring to shown in the top view of Fig. 3 lens 3, lens 3 are axially symmetric structure,
The length direction for defining lens 3 is longitudinal direction, and the width of lens 3 is horizontal, the intersection point of the center line of the vertical and horizontal of lens 3
For geometric center O points, by section centered on the section of the geometric center O points of lens 3.With reference to shown in Fig. 5 to Fig. 7, lens 3 wrap
Two kinds of sections face type in machine and transverse direction is included, as shown in fig. 6, the central cross-section face type of lens 3 in the vertical, is defined as
First face type；As shown in fig. 7, the central cross-section face type of lens 3 in the horizontal, is defined as the second face type.
First face type includes the first incidence surface 311 and the first exiting surface 321, and the first incidence surface 311 is located at inner surface 31, the
One exiting surface 321 is located at outer surface 32.First face type is zhou duicheng tuxing, i.e. the first incidence surface 311 and the first exiting surface 321
Symmetrical overlapping of axles.Specifically, the first incidence surface 311 and the first exiting surface 321 are the curved surface of rule, and the first incidence surface 311
Curvature be more than the first exiting surface 321 curvature.In the present embodiment, the first incidence surface 311 is half elliptic, the first exiting surface
321 be axisymmetric curved surface.
In the present embodiment, the ratio between the short axle b of host cavity 30 in the first face type and height h is less than 1.2.Need what is illustrated
Be, short axle b be host cavity 30 in the first face type half-breadth length, i.e., host cavity 30 in the vertical the spacing of both sides side wall one
Half, height h refers to the vertical range between the upper surface 211 of luminescence unit and the summit of host cavity 30.For example, with reference to Fig. 6
Shown, short axle b of the host cavity 30 in the first face type is 1.94, and height h is 1.94, then short axle b：Height h=1.
The ratio of the sidepiece thickness d 1 of lens 3 and the center top thickness d 2 of lens 3 is between 2~3.For example, with reference to Fig. 6
Shown, the ratio between sidepiece thickness d 1 and center top thickness d 2 are 2.5.
Second face type includes the second incidence surface 312 and the second exiting surface 322, and the second incidence surface 312 is located at inner surface 31, the
Two exiting surfaces 322 are located at outer surface 32.Second incidence surface 312 and the second exiting surface 322 are axisymmetric curved surface and are axial symmetry
Figure, but the second face type is non-axis symmetry figure, the i.e. symmetry axis of the symmetry axis of the second incidence surface 312 and the second exiting surface 322
It is parallel but misaligned.Specifically, the second incidence surface 312 is half elliptic, the second exiting surface 322 is curved surface and is axial symmetry figure
Shape.
In the present embodiment, the ratio between the major axis a of host cavity 30 in the second face type and height h is more than 2.Need what is illustrated
Be, major axis a be host cavity 30 in the second face type half-breadth length, i.e., host cavity 30 in the horizontal the spacing of both sides side wall one
Half, height h refers to the vertical range between the upper surface 211 of luminescence unit and the summit of host cavity 30.For example, with reference to Fig. 7
Shown, major axis a of the host cavity 30 in the second face type is 4, and height h is 1.94, then major axis a：Height h=2.06.
In the present embodiment, in the vertical, the position where the largest light intensity after the luminous intensity distribution of lens 3 50 °~80 ° it
Between.It is the first light type to define the light type that luminescence unit 22 obtains after the luminous intensity distribution of lens 3, is obtained after mask 4 carries out luminous intensity distribution again
Light type be the second light type, referring to shown in Fig. 8 and Fig. 9, the first light type as the position where the largest light intensity of the second light type,
All it is position of the another side at 70 ° while 65 ° of position.
The largest light intensity Imax of first light type1For 175cd, central light strength Io1For 75cd, the largest light intensity of the first light type and
The ratio of central light strength is the first ratio, and the first ratio is：
Imax1：Io1=2.33；
The largest light intensity Imax of second light type2For 155cd, central light strength Io2For 80cd, the largest light intensity of the second light type and
The ratio of central light strength is the second ratio, and the second ratio is：
Imax1：Io2=1.94；
Thus draw：(Imax1:Io1):(Imax2:Io2)=1.2,
That is, the size of the first ratio and the second ratio is 1.2.
, can be according to largest light intensity on the premise of in the range of the ratio between first ratio and the second ratio are maintained at more than 1.1
The specific angle being located at needed for angle adjusts the configuration of the inner surface 31 of lens 3 and outer surface 32.
The lighting device 100 of the embodiment of the present invention 1, the lens 3 in it enter in the position compensation where largest light intensity
The light intensity that light portion 41 reflects away so that the light type being finally emitted by transmittance section 41 meets the requirement of target light type.
Embodiment 2
With reference to shown in Figure 10 to Figure 13, the embodiment of the present invention 2 provides a kind of lens 3', can be applied to embodiment 1 and provides
Lighting device 100 in.
Lens 3' has inner surface 31', outer surface 32' and the host cavity 30' for setting and being formed, host cavity is enclosed by inner surface 31'
30' is used to house luminescence unit (not shown).
Referring to shown in Figure 10 and Figure 11, lens 3' is zhou duicheng tuxing, and symmetric figure is two sphere curved surfaces.Lens 3''s
The ratio between length a1 and lens 3' width b1 is more than 1.69.It should be noted that lens 3' width b1 refers to lens 3''s
The distance at lens 3' both ends on transversal line.For example, with reference to shown in Figure 12, lens 3' length a1 is 14.64, and width b1 is 8,
Then length a1：Width b1=1.83.
Lens 3' includes two kinds of sections face type in machine and transverse direction, is defined through lens 3' geometric center O' section
Section centered on face, it is shown in Figure 12, the central cross-section face types of lens 3' in the vertical, it is defined as the first face type；Referring to
Shown in Figure 13, the central cross-section face types of lens 3' in the horizontal, the second face type is defined as.
First face type is located at inner surface including the first incidence surface 311' and the first exiting surface 321', the first incidence surface 311'
31', the first exiting surface 321' are located at outer surface 32'.First face type is zhou duicheng tuxing, i.e. the first incidence surface 311' goes out with first
Smooth surface 321' symmetrical overlapping of axles.Specifically, the first incidence surface 311' and the first exiting surface 321' are the curved surface of rule, and the
One incidence surface 311' curvature is more than the first exiting surface 321' curvature.In the present embodiment, the first incidence surface 311' is half ellipse
Circle, the first exiting surface 321' are axisymmetric curved surface.
In the present embodiment, the ratio between the short axle b' and height h' of host cavity 30' in the first face type is between 1.1~1.2.
It should be noted that short axle b' is half-breadth length of the host cavity 30' in the first face type, and host cavity 30' both sides sides in the vertical
The half of wall spacing, height h' are referred between upper surface 211' and host cavity the 30' summit of luminescence unit (not shown)
Vertical range.
Lens 3' sidepiece thickness d 1' and lens 3' center top thickness d 2' ratio are more than 3.
Second face type is located at inner surface including the second incidence surface 312' and the second exiting surface 322', the second incidence surface 312'
31', the second exiting surface 322' are located at outer surface 32'.Second incidence surface 312' and the second exiting surface 322' is axisymmetric curved surface
And be zhou duicheng tuxing, but the second face type is non-axis symmetry figure, i.e. the second incidence surface 312' symmetry axis and the second exiting surface
322' symmetry axis is parallel but misaligned.Specifically, the second incidence surface 312' is half elliptic, the second exiting surface 322' is curved surface
And it is zhou duicheng tuxing.
In the present embodiment, in the vertical, the position where the largest light intensity after lens 3' luminous intensity distributions 50 °~80 ° it
Between.The specific angle that can be located at according to needed for largest light intensity angle adjusts lens 3' inner surface 31' and outer surface 32' structure
Type.
The lens 3' that the embodiment of the present invention 2 is provided is applied to lighting device 100, in the position compensation where largest light intensity
Enter the light intensity reflected away by transmittance section 41 so that the light type being finally emitted by transmittance section 41 meets the requirement of target light type.
Above-described instantiation, the purpose of the present invention, technical scheme and beneficial effect are carried out further in detail
Illustrate, should be understood that the foregoing is only the present invention specific embodiment, be not intended to limit the invention, it is all
Within the spirit and principles in the present invention, any modification, equivalent substitution and improvements done etc., the protection of the present invention should be included in
Within the scope of.
Claims (20)
1. a kind of lighting device, it is characterised in that the lighting device includes lamp body, the light source die in the lamp body
The transmittance section of group and the covering light source module group, the light source module group, which includes several, to be had the lens of host cavity and is housed in
Luminescence unit in the host cavity, the light that the luminescence unit is sent are gone out after the lens luminous intensity distribution by the transmittance section
To penetrate, the transmittance section is tabular,
The luminescence unit obtains the first light type after the lens luminous intensity distribution, behind the transmittance section again luminous intensity distribution, obtains second
Light type,
The largest light intensity of first light type and the ratio of central light strength are the first ratio, the largest light intensity and central light strength of the second light type
Ratio be the second ratio, the ratio between the first ratio and the second ratio are more than 1.1.
2. lighting device according to claim 1, it is characterised in that the largest light intensity of the light after the lens luminous intensity distribution
The angle at place is between 50 ° -80 °.
3. lighting device according to claim 1, it is characterised in that the largest light intensity and central light strength of first light type
Ratio be more than 1.8.
4. lighting device according to claim 1, it is characterised in that the length direction of the lens is longitudinal direction, described
The width of mirror is laterally, the central cross-section face type of the lens in machine and transverse direction is different.
5. lighting device according to claim 4, it is characterised in that the central cross-section face type of the lens in the vertical is
First face type, first face type is zhou duicheng tuxing and its inner surface is half elliptic.
6. lighting device according to claim 5, it is characterised in that short axle of the host cavity in the first face type and height
The ratio between degree is less than 1.2.
7. lighting device according to claim 6, it is characterised in that short axle of the host cavity in the first face type and height
The ratio between degree is 1.
8. lighting device according to claim 5, it is characterised in that first face type includes the first incidence surface and first
Exiting surface, first incidence surface and the first exiting surface are cambered surface, the sidepiece thickness of the lens and the ratio of top thickness
Between 2~3.
9. lighting device according to claim 4, it is characterised in that the central cross-section face type of the lens in the horizontal is
Second face type, the inner surface of second face type is half elliptic, and the outer surface of second face type is curved surface and is axial symmetry
Figure.
10. lighting device according to claim 9, it is characterised in that the outer surface of second face type and inner surface
Symmetry axis is parallel.
11. lighting device according to claim 9, it is characterised in that major axis of the host cavity in the second face type with
The ratio between height is more than 6.09.
12. lighting device according to claim 11, it is characterised in that major axis of the host cavity in the second face type with
The ratio between height 6.51.
13. lighting device according to claim 1, it is characterised in that the transmittance section is made up of glass or by plastics system
Into.
14. lighting device according to claim 1, it is characterised in that the lighting device also includes light source board, several
The luminescence unit is arranged on the light source board, the corresponding luminescence unit of the lens or corresponding multiple described
Luminescence unit.
15. lighting device according to claim 1, it is characterised in that the lighting device is street lamp.
16. lighting device according to claim 15, it is characterised in that the street lamp also includes being contained in the lamp body
Driving power component, the driving power component and the light source module group are electrically connected with.
17. lighting device according to claim 15, it is characterised in that the street lamp includes the face being connected with the lamp body
Cover, the mask include the transmittance section and painting part.
18. according to the lighting device described in claim 15,16 or 17, it is characterised in that the street lamp also includes lamp stand, described
Lamp body is connected on the lamp stand.
19. lighting device according to claim 18, it is characterised in that the luminescence unit and lens unit are into array
Distribution.
20. lighting device according to claim 15, it is characterised in that the lighting device also includes being arranged on the lamp
Internal reflector, the reflector are arranged on the periphery of the light source module group.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710897781.2A CN107477478B (en) | 2017-09-28 | 2017-09-28 | Lighting device |
| PCT/CN2018/107376 WO2019062718A1 (en) | 2017-09-28 | 2018-09-25 | Lighting device |
| EP18862283.1A EP3690311A4 (en) | 2017-09-28 | 2018-09-25 | Lighting device |
| US16/829,551 US11131439B2 (en) | 2017-09-28 | 2020-03-25 | Lighting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710897781.2A CN107477478B (en) | 2017-09-28 | 2017-09-28 | Lighting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107477478A true CN107477478A (en) | 2017-12-15 |
| CN107477478B CN107477478B (en) | 2023-06-30 |
Family
ID=60604720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710897781.2A Active CN107477478B (en) | 2017-09-28 | 2017-09-28 | Lighting device |
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| CN114967285A (en) * | 2022-06-17 | 2022-08-30 | 杭州海康威视数字技术股份有限公司 | Light supplement system, image pickup device and image pickup method |
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