CN107246591A - A kind of secondary lens combining structure of adjustable focus - Google Patents
A kind of secondary lens combining structure of adjustable focus Download PDFInfo
- Publication number
- CN107246591A CN107246591A CN201710475896.2A CN201710475896A CN107246591A CN 107246591 A CN107246591 A CN 107246591A CN 201710475896 A CN201710475896 A CN 201710475896A CN 107246591 A CN107246591 A CN 107246591A
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- Prior art keywords
- secondary lens
- mirror
- regulation
- incidence
- lens
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- 238000000605 extraction Methods 0.000 claims abstract description 4
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 230000001045 lordotic effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 5
- 230000015572 biosynthetic process Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 3
- 238000005286 illumination Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 2
- 239000004926 polymethyl methacrylate Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000005304 optical glass Substances 0.000 description 1
- 239000012994 photoredox catalyst Substances 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
Classifications
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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
- F21V5/00—Refractors for light sources
- F21V5/04—Refractors for light sources of lens shape
- F21V5/046—Refractors for light sources of lens shape the lens having a rotationally symmetrical shape about an axis for transmitting light in a direction mainly perpendicular to this axis, e.g. ring or annular lens with light source disposed inside the ring
-
- 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
- F21V5/008—Combination of two or more successive refractors along an optical axis
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Optical Elements Other Than Lenses (AREA)
Abstract
The invention discloses a kind of secondary lens combining structure of adjustable focus, including secondary lens and regulation mirror, regulation mirror is arranged at the front of secondary lens light extraction side, and the structure of its structure and secondary lens matches；Secondary lens include secondary lens body, and secondary lens body has chip light-emitting area, the total reflection plane of incidence, the refraction plane of incidence, refraction exit facet, fully reflecting surface and total reflection exit facet；Regulation mirror two sides is respectively the regulation mirror plane of incidence and regulation mirror exit facet, regulation mirror plane of incidence alignment secondary lens；Because the surface of total reflection exit facet sub-lens, regulation mirror outgoing sub-lens and the incident sub-lens of regulation mirror is all sphere, three groups of spheres are combined into microlens system, uniform light in the regional area is radiated in target face；Adjust secondary lens and regulation the distance between mirror, you can the focal length of each group of microlens system of regulation, reach the focusing of shadow surface hot spot, so as to realize the change of spot size, and uniform light, lighting effect is good.
Description
Technical field
The present invention relates to LED lamp illumination technical field, and in particular to a kind of to be used in LED lamp form ring-shaped light spot
Secondary lens.
Background technology
LED lens be closely connected with LED together with part, it can strengthen LED efficiency of light and luminous efficiency,
The optical system of LED optical field distribution can be changed using different lens according to different effects.LED lens are divided into one
Secondary lens and secondary lens, a lens directly encapsulate (or bonding) on LED core plate rack, and an entirety is turned into LED.
It is 180 degree that LED chip is luminous, and No. one time lens are typically made of materials such as PMMA, PC, optical glass or silica gel.Secondary lens
Two independent parts with LED, function be by the lighting angle of LED/light source pool 5 ° to 160 ° again between arbitrarily want
Angle, the distribution of light field can be divided mainly into：Circular, ellipse and rectangle.Secondary lens material typically with optical grade PMMA or
Person PC.The purpose of secondary lens is that light field is shaped into arbitrary shape, and its illuminated area is fixed range, in order to difference away from
From place obtain the illumination of uniform luminance, it is necessary to design the secondary lens of adjustable focus.Such as Application No. 201410180000.4
Patent of invention disclose it is a kind of adjust the method that LED projects optic angle, it sets lens on light direction in LED
Group；A focus adjusting mechanism is set between the Lamp cup and lampshade of LED, both are connected early together by focus adjusting mechanism；Pass through focusing
The relative position of institutional adjustment lampshade and Lamp cup, to the projectional angle corresponding to the brightness needed, is projected by said lens group,
Easily adjustable rising angle.However, the prior art including aforementioned patent applications is present because of secondary lens and focusing
The structure design of part is not reasonable, causes lighting effect undesirable, the problems such as light is uneven.
The content of the invention
The technical problem to be solved in the present invention be for prior art defect there is provided a kind of structure design more rationally, light
According to effect more preferably, the secondary lens combining structure of the adjustable focus of light evenly.
In order to solve the above technical problems, the present invention is adopted the following technical scheme that：A kind of secondary lens combination knot of adjustable focus
Structure, including secondary lens, it is characterised in that：Also include one regulation mirror, regulation mirror be arranged at secondary lens light extraction side just before
Side, and the structure and the structures of secondary lens of regulation mirror match；
The secondary lens include secondary lens body, and the side of secondary lens body is integrally conical structure, and side surface is
The arcuate structure of evagination, provided with chip light-emitting area recessed inwardly, the side of chip light-emitting area in the middle of the back of secondary lens body
The wall formation total reflection plane of incidence, the refraction plane of incidence is formed on front bottom；It is provided with the middle of the front of secondary lens body towards indent
The refraction outgoing area entered, refraction outgoing has the refraction exit facet protruded forward in area；The side of secondary lens body, which is formed, is all-trans
Face is penetrated, front edge to the region for reflecting outgoing area edge forms total reflection exit facet, and total reflection exit facet is by some total reflections
Exit facet sub-lens are constituted, the mode of similar picture mosaic；
The front and rear two sides of the regulation mirror is respectively the regulation mirror plane of incidence and regulation mirror exit facet, wherein the regulation mirror plane of incidence
It is directed at the total reflection exit facet of secondary lens, regulation mirror exit facet alignment illuminated area side；The regulation mirror plane of incidence is by some
Adjust the incident sub-lens of mirror to constitute, similar jigsaw puzzle shape；The regulation mirror exit facet is made up of some regulation mirror outgoing sub-lens,
Similar honeycomb shape.
Further, the refraction exit facet of secondary lens is the spherical shape of evagination, and its surface has refraction exit facet light
Grid；And adjust mirror regulation the mirror plane of incidence centre provided with indent regulation mirror in the middle part of the plane of incidence, regulation mirror in the middle part of the plane of incidence with
The refraction exit facet of secondary lens matches, and the regulation mirror part in the middle part of regulation mirror in front of the plane of incidence forms and reflected with described
Penetrate face structure identical lordotic shape.
Further, the cross-sectional view of secondary lens body, chip light-emitting area and refraction outgoing area is rounded, and center of circle weight
Close；The diameter for reflecting outgoing area is more than the diameter of chip light-emitting area；Whole secondary lens are using the cross section center of circle as symmetry axis
Symmetrical structure.
Further, in the chip light-emitting area of the secondary lens, LED chip, which is installed on its light and exposed to, to be refracted into
The incident angle for penetrating face is 0-34 degree, expose to the total reflection plane of incidence incident angle be 34-80 degree position.
Further, the regulation mirror outgoing sub-lens of the total reflection exit facet sub-lens of secondary lens and regulation mirror exit facet
It is the spherical shape protruded outwardly, and the incident sub-lens of regulation mirror for adjusting the mirror plane of incidence are spherical shape recessed inwardly.
Further, the refraction plane of incidence of secondary lens is the spherical shape of evagination backwards.
Further, retainer ring is provided with the front portion of secondary lens, retainer ring is protruded from outside the side of secondary lens body.
LED chip is installed, the light for sending LED chip reaches total reflection area and refracting sphere on demand in chip light-emitting area,
Incident angle is 0-34 ° of light by refracting sphere, and incident angle is 34-80 ° of light by being totally reflected area.Specifically, angle
The light spent at 34-80 ° is entered by the total reflection plane of incidence 6 is totally reflected area, is totally reflected face 4 and is totally reflected, is penetrated by fully reflecting surface 4
To total reflection exit facet 5, the light formation directional light being totally reflected projects secondary lens, directional light exists from total reflection exit facet 5
Here the focusing of exit facet sub-lens is totally reflected, the hot spot of formation is radiated on regulation mirror 11.
Angle enters refracting sphere in 0-34 ° of light by the refraction plane of incidence 3, is changed by light angle after refracting sphere
Become, secondary lens are projected by refraction exit facet 8, the hot spot of formation is radiated in the middle part of regulation mirror on the plane of incidence.Regulation mirror 11 is installed
It is circular sheet before secondary lens.
Due to being totally reflected the surface, the surface of regulation mirror outgoing sub-lens and the incident sub-lens of regulation mirror of exit facet sub-lens
Surface be all sphere, this three groups of spheres are combined into microlens system, uniform light in the regional area is radiated at target
On face；Secondary lens are adjusted with adjusting the distance between mirror, you can the focal length of each group of microlens system of regulation, reach shadow surface
The focusing of hot spot, so as to realize the change of spot size, and uniform light, lighting effect is good.
Brief description of the drawings
Fig. 1 is the side structure schematic diagram of secondary lens；
Fig. 2 is the positive structure schematic of secondary lens；
Fig. 3 is the schematic cross-sectional view of secondary lens；
Fig. 4 is the structure schematic diagram of regulation mirror；
Fig. 5 is the cross section structure diagram of regulation mirror；
Fig. 6 is the positive structure schematic of regulation mirror；
Fig. 7 is combining structure of the present invention and light path schematic diagram.
1 is secondary lens, and 2 be chip light-emitting area, and 3 be the refraction plane of incidence, and 4 be fully reflecting surface, and 5 be total reflection exit facet, 6
It is retainer ring for the total reflection plane of incidence, 7,8 be refraction exit facet, and 9 be total reflection exit facet sub-lens, and 10 be refraction exit facet light
Grid, 11 be regulation mirror, and 12 be regulation mirror exit facet, and 13 be the regulation mirror plane of incidence, and 14 be regulation for the plane of incidence in the middle part of regulation mirror, 15
Mirror incidence sub-lens, 16 be regulation mirror outgoing sub-lens, and 17 be LED chip, and 18 be illuminated area, and 19 be irradiation light.
Embodiment
In the present embodiment, reference picture 1, Fig. 2, Fig. 3, Fig. 5 and Fig. 7, the secondary lens combining structure of the adjustable focus, including
Secondary lens 1 and regulation mirror 11, regulation mirror 11 are arranged at the front of the light extraction side of secondary lens 1, and the structure of regulation mirror 11
Match with the structure of secondary lens 1；
The secondary lens 1 include secondary lens body, and the side of secondary lens body is integrally conical structure, and side surface is
The arcuate structure of evagination, provided with chip light-emitting area 2 recessed inwardly in the middle of the back of secondary lens body, chip light-emitting area 2
The side wall formation total reflection plane of incidence 6, the refraction plane of incidence 3 is formed on front bottom；Court is provided with the middle of the front of secondary lens body
Interior recessed refraction outgoing area, refraction outgoing has the refraction exit facet 8 protruded forward in area；The side of secondary lens body is formed
Fully reflecting surface 4, front edge to the region for reflecting outgoing area edge forms total reflection exit facet 5, and total reflection exit facet 5 is by numerous
Total reflection exit facet sub-lens 9 are constituted, the mode of similar picture mosaic；
Reference picture 4 and Fig. 6, the front and rear two sides of the regulation mirror 11 is respectively the regulation mirror plane of incidence 13 and regulation mirror exit facet
12, wherein the regulation mirror plane of incidence 13 is directed at the total reflection exit facet 5 of secondary lens 1, regulation mirror exit facet 12 is directed at illuminated area 18
Side；The regulation mirror plane of incidence 13 is made up of numerous incident sub-lens 15 of regulation mirror, similar jigsaw puzzle shape；The regulation mirror goes out
Penetrate face 12 to be made up of numerous regulation mirror outgoing sub-lens 16, similar honeycomb shape.
The refraction exit facet 8 of secondary lens 1 is the spherical shape of evagination, and its surface has refraction outgoing concave grating 10；And
The plane of incidence 14 in the middle part of the plane of incidence 14 in the middle part of regulation mirror of the centre provided with indent for the regulation mirror plane of incidence 13 for adjusting mirror 11, regulation mirror
Match with the refraction exit facet 8 of secondary lens 1, and in the middle part of regulation mirror the regulation mirror part in the front of the plane of incidence 14 formed with it is described
Reflect the structure identical lordotic shape of exit facet 8.
The cross-sectional view of secondary lens body, chip light-emitting area 2 and refraction outgoing area is rounded, and the center of circle is overlapped；Reflect
The diameter for penetrating area is more than the diameter of chip light-emitting area 2；Whole secondary lens 1 are the symmetrical junctions using the cross section center of circle as symmetry axis
Structure.
In the chip light-emitting area 2 of the secondary lens 1, LED chip 17 is installed on its light and exposes to the refraction plane of incidence 3
Incident angle be 0-34 degree, expose to be totally reflected incident 6 face incident angle be 34-80 degree position.
The total reflection exit facet sub-lens 9 of secondary lens 1 and the regulation mirror outgoing sub-lens 16 of regulation mirror exit facet 12 are equal
For the spherical shape protruded outwardly, and the incident sub-lens 15 of regulation mirror for adjusting the mirror plane of incidence 13 are spheric recessed inwardly
Shape.
The refraction plane of incidence 3 of secondary lens 1 is the spherical shape of evagination backwards.
Retainer ring 7 is provided with the front portion of secondary lens 1, retainer ring is protruded from outside the side of secondary lens body.
LED chip 17 is installed, the light for sending LED chip 17 reaches total reflection area and folding on demand in chip light-emitting area 2
Penetrate area, incident angle is 0-34 ° of irradiation light 19 by refracting sphere, and incident angle leads to for 34-80 ° of irradiation light 19
Cross total reflection area.Specifically, angle 34-80 ° light by the total reflection plane of incidence 6 enter total reflection area, be totally reflected face 4 complete
Reflection, total reflection exit facet 5 is mapped to by fully reflecting surface 4, the light formation directional light being totally reflected, from total reflection exit facet 5
Secondary lens 1 are projected, directional light is totally reflected exit facet sub-lens 9 and focused on herein, the hot spot of formation is radiated at regulation mirror 11
On.
Angle enters refracting sphere in 0-34 ° of light by the refraction plane of incidence 3, is changed by light angle after refracting sphere
Become, secondary lens 1 are projected by refraction exit facet 8, the hot spot of formation is radiated in the middle part of regulation mirror on the plane of incidence 14.Regulation mirror 11 is pacified
It is circular sheet before secondary lens 1.
The present invention is described in detail above, described above, only the preferred embodiments of the invention, when can not
Limit the scope of the present invention, i.e., it is all to make equivalent changes and modifications according to the application scope, it all should still belong to covering scope of the present invention
It is interior.
Claims (7)
1. a kind of secondary lens combining structure of adjustable focus, including secondary lens, it is characterised in that：Also include a regulation mirror, adjust
Section mirror is arranged at the front of secondary lens light extraction side, and the structure of regulation mirror and the structure of secondary lens match；
The secondary lens include secondary lens body, and the side of secondary lens body is integrally conical structure, and side surface is evagination
Arcuate structure, provided with recessed chip light-emitting area inwardly, the side wall shape of chip light-emitting area in the middle of the back of secondary lens body
Into the total reflection plane of incidence, the refraction plane of incidence is formed on front bottom；Provided with recessed inwardly in the middle of the front of secondary lens body
Outgoing area is reflected, refraction outgoing has the refraction exit facet protruded forward in area；The side of secondary lens body forms fully reflecting surface,
Front edge to the region for reflecting outgoing area edge forms total reflection exit facet, and total reflection exit facet is by some total reflection exit facets
Sub-lens are constituted；
The front and rear two sides of the regulation mirror is respectively the regulation mirror plane of incidence and regulation mirror exit facet, wherein the plane of incidence alignment of regulation mirror
The total reflection exit facet of secondary lens, regulation mirror exit facet alignment illuminated area side；The regulation mirror plane of incidence is by some regulations
Mirror incidence sub-lens are constituted, and the regulation mirror exit facet is made up of some regulation mirror outgoing sub-lens.
2. the secondary lens combining structure of adjustable focus according to claim 1, it is characterised in that：Secondary lens are reflected
The spherical shape that face is evagination is penetrated, its surface has refraction outgoing concave grating；And the centre for adjusting the regulation mirror plane of incidence of mirror is set
The refraction exit facet for having the plane of incidence and secondary lens in the middle part of the plane of incidence in the middle part of the regulation mirror of indent, regulation mirror matches, and regulation
Regulation mirror part in the middle part of mirror in front of the plane of incidence is formed and the refraction exit facet structure identical lordotic shape.
3. the secondary lens combining structure of adjustable focus according to claim 2, it is characterised in that：Secondary lens body, chip
The cross-sectional view in luminous zone and refraction outgoing area is rounded, and the center of circle is overlapped；The diameter for reflecting outgoing area is more than chip light-emitting area
Diameter；Whole secondary lens are the symmetrical structures using the cross section center of circle as symmetry axis.
4. the secondary lens combining structure of adjustable focus according to claim 3, it is characterised in that：In the secondary lens
In chip light-emitting area, LED chip be installed on its light expose to refraction the plane of incidence incident angle for 0-34 degree, expose to and be all-trans
The incident angle for penetrating the plane of incidence is the position of 34-80 degree.
5. the secondary lens combining structure of adjustable focus according to claim 4, it is characterised in that：The total reflection of secondary lens
The regulation mirror outgoing sub-lens of exit facet sub-lens and regulation mirror exit facet are the spherical shape protruded outwardly, and adjust mirror and enter
The incident sub-lens of regulation mirror for penetrating face are spherical shape recessed inwardly.
6. the secondary lens combining structure of adjustable focus according to claim 4, it is characterised in that：Secondary lens are refracted into
Penetrate spherical shape of the face for evagination backwards.
7. the secondary lens combining structure of adjustable focus according to claim 1, it is characterised in that：In the front portion of secondary lens
Provided with retainer ring, retainer ring is protruded from outside the side of secondary lens body.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2016112553512 | 2016-12-30 | ||
| CN201611255351 | 2016-12-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107246591A true CN107246591A (en) | 2017-10-13 |
Family
ID=60019542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710475896.2A Pending CN107246591A (en) | 2016-12-30 | 2017-06-21 | A kind of secondary lens combining structure of adjustable focus |
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| Country | Link |
|---|---|
| CN (1) | CN107246591A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109282245A (en) * | 2018-10-26 | 2019-01-29 | 成都恒坤光电科技有限公司 | A kind of compound lens and the lamps and lanterns using the compound lens |
| CN109669225A (en) * | 2019-01-04 | 2019-04-23 | 多普光电科技有限公司 | Optical matrix system, condenser system and fly's-eye lens |
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| CN102853374A (en) * | 2012-08-24 | 2013-01-02 | 霍永峰 | LED (Light-Emitting Diode) stage lamp lens assembly and LED stage lamp |
| CN102878526A (en) * | 2012-10-30 | 2013-01-16 | 成都欧盛光电科技有限公司 | Light-emitting diode (LED) light-distributing lens |
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| CN203413542U (en) * | 2013-08-26 | 2014-01-29 | 上海亚明照明有限公司 | Zoom lens group for LED lamp |
| CN103542370A (en) * | 2013-10-29 | 2014-01-29 | 江门吉华光电精密有限公司 | Combined lens capable of mixing light evenly and adjusting light intensity angles and based on multiple colors of red green blue and white (RGBW) |
| CN206514241U (en) * | 2016-12-30 | 2017-09-22 | 广州市戴亚萌光学仪器有限责任公司 | A kind of secondary lens combining structure of adjustable focus |
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2017
- 2017-06-21 CN CN201710475896.2A patent/CN107246591A/en active Pending
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| JP2005228623A (en) * | 2004-02-13 | 2005-08-25 | Okaya Electric Ind Co Ltd | Lens for light-emitting element |
| CN202791800U (en) * | 2012-08-10 | 2013-03-13 | 成都欧盛光电科技有限公司 | Light distribution optical lens for light-emitting diode (LED) illumination |
| CN102853374A (en) * | 2012-08-24 | 2013-01-02 | 霍永峰 | LED (Light-Emitting Diode) stage lamp lens assembly and LED stage lamp |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109282245A (en) * | 2018-10-26 | 2019-01-29 | 成都恒坤光电科技有限公司 | A kind of compound lens and the lamps and lanterns using the compound lens |
| CN109282245B (en) * | 2018-10-26 | 2024-04-30 | 成都恒坤光电科技有限公司 | Combined lens and lamp adopting same |
| CN109669225A (en) * | 2019-01-04 | 2019-04-23 | 多普光电科技有限公司 | Optical matrix system, condenser system and fly's-eye lens |
| WO2020140764A1 (en) * | 2019-01-04 | 2020-07-09 | 多普光电科技有限公司 | Matrix optical system, light concentrating system, and compound eye lens |
| CN109669225B (en) * | 2019-01-04 | 2020-08-11 | 多普光电科技有限公司 | Matrix optical system, light condensing system, and fly-eye lens |
| US11460611B2 (en) | 2019-01-04 | 2022-10-04 | Toplite International Co., Limited | Matrix optical system, light concentrating system, and compound eye lens |
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Application publication date: 20171013 |
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