CN104595848A - Lens and light source module using lens - Google Patents
Lens and light source module using lens Download PDFInfo
- Publication number
- CN104595848A CN104595848A CN201310523147.4A CN201310523147A CN104595848A CN 104595848 A CN104595848 A CN 104595848A CN 201310523147 A CN201310523147 A CN 201310523147A CN 104595848 A CN104595848 A CN 104595848A
- Authority
- CN
- China
- Prior art keywords
- lens
- light source
- incidence
- incidence surface
- central shaft
- 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
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The invention provides a light source module comprising a light source and a lens arranged directly facing the light source. The lens comprises an incident surface arranged directly facing the light source, an emergent surface arranged opposite to the incident surface, and a connecting surface used for connecting the incident surface with the emergent surface, wherein the connecting surface is an annular plane arranged around the incident surface; the emergent surface is butted with the periphery edge of the connecting surface; the emergent surface comprises a top wall surface and a side wall surface; the top wall surface is positioned above the incident surface; the side wall surface is formed by upwards extending from the periphery edge of the connecting surface and is butted with the periphery edge of the top wall surface; the incident surface is formed by sinking from the middle part of the bottom surface of the lens to the interior of the lens; the incident surface comprises a plurality of discontinuous arc dividing surfaces; every two adjacent arc dividing surfaces are in non-smooth connection; and every two adjacent arc dividing surfaces are intersected to form a boundary line. Compared with the prior art, the light source module achieves the optical effects of reducing forward-direction light intensity, enhancing the side-direction light intensity and obtaining specific light patterns.
Description
Technical field
The present invention relates to optical field, particularly relate to a kind of lens and use the light source module of these lens.
Background technology
At present, in the middle of back lighting, in order to uniform light, diverging lens of usually arranging in pairs or groups uses, and the light that light source is sent with larger angle outgoing, thus can reach the effect of large area lighting.
But in actual use, the light that light source sends, after the diffusion of lens, because light is more concentrated near the optical axis of light source, sometimes can not be eliminated the phenomenon of central bright spot completely, be unfavorable for back lighting.
Summary of the invention
In view of this, be necessary to provide a kind of can emit beam to light source make the lens that directive property is improved and the light source module using these lens.
A kind of lens, comprise incidence surface, the exiting surface be oppositely arranged with this incidence surface and be connected the joint face of this incidence surface and exiting surface, described joint face is the ring plain arranged around this incidence surface, the outer peripheral edge of described exiting surface and joint face connects, described exiting surface comprises the roof face that is positioned at above described incidence surface and upwards extends to form from the outer peripheral edge of described joint face, and the side wall surface connected with the outer peripheral edge in this roof face, described incidence surface is formed by caving in this lens interior in the middle part of the bottom surface of these lens, this incidence surface comprises multiple discontinuous point of cambered surface, be non-smooth connection between two points of adjacent cambered surfaces, formation one boundary line is intersected between point cambered surface of adjacent two.
A kind of light source module, comprise a light source and just to the lens that this light source is arranged, these lens comprise with light source just to the incidence surface arranged, the exiting surface be oppositely arranged with this incidence surface and be connected the joint face of this incidence surface and exiting surface, described joint face is the ring plain arranged around this incidence surface, the outer peripheral edge of described exiting surface and joint face connects, described exiting surface comprises the roof face that is positioned at above described incidence surface and upwards extends to form from the outer peripheral edge of described joint face, and the side wall surface connected with the outer peripheral edge in this roof face, described incidence surface is formed by caving in this lens interior in the middle part of the bottom surface of these lens, this incidence surface comprises multiple discontinuous point of cambered surface, be non-smooth connection between two points of adjacent cambered surfaces, formation one boundary line is intersected between point cambered surface of adjacent two.
Compared with prior art, light source module of the present invention achieves reduction forward light intensity, strengthens the optical effect that side direction light intensity also can obtain specific light type.
Accompanying drawing explanation
Fig. 1 is the schematic perspective view of the lens of the light source module of one embodiment of the invention.
The inversion schematic diagram that Fig. 2 is the lens shown in Fig. 1.
Fig. 3 is the lens upward view shown in Fig. 1.
Fig. 4, for the lens shown in Fig. 1 are along the cross-sectional schematic of IV-IV line, wherein add a light source and is placed in lens.
Fig. 5 is the light type schematic diagram of light source module of the present invention.
Main element symbol description
| Light source module | 100 |
| Light source | 10 |
| Pedestal | 12 |
| Light-emitting diode chip for backlight unit | 14 |
| Lens | 20 |
| Incidence surface | 21 |
| Divide cambered surface | 210 |
| Boundary line | 212 |
| Intersection point | 214 |
| Exiting surface | 22 |
| Roof face | 221 |
| First surface | 2210 |
| Second curved surface | 2212 |
| Side wall surface | 222 |
| Joint face | 23 |
| Accommodation space | 24 |
Following detailed description of the invention will further illustrate the present invention in conjunction with above-mentioned accompanying drawing.
Detailed description of the invention
Refer to Fig. 1 to Fig. 4, the light source module 100 that one embodiment of the invention provides comprise a light source 10 and just to this light source 10 arrange lens 20.Described lens 20 comprise the exiting surface 22 be just oppositely arranged the incidence surface 21 arranged and this incidence surface 21 with light source 10 and the joint face 23 being connected this incidence surface 21 and exiting surface 22.Described light source 10 has an optical axis O.The light that this light source 10 sends roughly is distributed in the Space Angle in 180 degree relative to this optical axis O, and wherein most of light is relative in the Space Angle of this optical axis O integrated distribution in 120 degree.
In the present embodiment, described light source 10 is light emitting diode, comprises pedestal 12 and is fixed on the light-emitting diode chip for backlight unit 14 on pedestal 12.Described pedestal 12 is made up of insulating materials such as epoxy resin, silica gel or potteries.Described light-emitting diode chip for backlight unit 14 is made up of semi-conducting materials such as gallium nitride, InGaN, aluminum indium gallium nitride, and it can excite generation visible ray by electric current.
Said lens 20 is made into integration by the transparent material such as Merlon or polymethyl methacrylate, also can layering make.Can have fluorescent material by Uniform Doped further in described lens 20, fluorescent material can be made up of the fluorescent material such as yttrium-aluminium-garnet, silicate.
Described lens 20 to be positioned at directly over described light source 10 and and this light source 10 interval arrange.Described incidence surface 21 is formed to this lens 20 inner recess by the middle part of the bottom surface of these lens 20.Described joint face 23 is around the ring plain that this incidence surface 21 is arranged in the bottom surface of these lens 20.Described exiting surface 22 comprise the roof face 221 that is positioned at above described incidence surface 21 and upwards extend to form from the outer peripheral edge of described joint face 23 and the side wall surface 222 connected with the outer peripheral edge in this roof face 221.In the present embodiment, described side wall surface 222 is cylinder, and understandably, described side wall surface 222 also can be the conical surface or surface of revolution.In use, described lens 20 joint face 23 with fit in order to the mounting plane (not shown) carrying described lens 20.
Upwards cave in the middle part of the bottom surface of described lens 20 and form an accommodation space 24, this accommodation space 24 is enclosed by described incidence surface 21 and forms.Described accommodation space 24 is roughly tapered, for accommodating described light source 10.The opening of accommodation space 24 on the bottom surface of lens 20 is square.The circumferential size of accommodation space 24 reduces from bottom to top gradually.In the present embodiment, incidence surface 21 is formed by connecting by discontinuous four points of cambered surfaces 210.Each point cambered surface 210 is roughly triangular in shape, and it inwardly and be bent upwards.The width of each point of cambered surface 210 reduces from bottom to top gradually.Each point of cambered surface 210 is as level and smooth cambered surface.Be non-smooth connection between two points of adjacent cambered surfaces 210, thus between point cambered surface 210 of adjacent two, intersect formation one boundary line 212.Boundary line 212 is camber line, and its bottom surface from lens 20 upwards and the extension that curves inwardly.Four boundary lines 212 are oppositely arranged between two, and jointly intersect at same intersection point 214.Optical axis O is through the intersection point 214 in four boundary lines 212.Every two relative boundary lines 212 are coplanar, and in smoothing junction in intersection point 214 place.The curvature of each point of cambered surface 210 increases from its two boundary line 212 gradually towards middle part.The light that light source 10 sends enters in lens 20 via incidence surface 21.Due to four points of discontinuous settings of cambered surface 210 of lens 20, thus the light that sends of described light source 10 when entering lens 20 will spread by four points of cambered surfaces 210 and separate and form four strands of essentially independent light beams.
The bottom peripheral edge of the side wall surface 222 of described exiting surface 22 and the outer peripheral edge of joint face 23 connect.The roof face 221 of this exiting surface 22 comprise a first surface 2210 and around this first surface 2210 arrange and with one second curved surface 2212 of this first surface 2210 smooth connection.Described first surface 2210 is formed to this lens 20 inner recess by the middle part of the end face of these lens 20.In the present embodiment, the first surface 2210 in the roof face 221 of this exiting surface 22 is a free form surface, and understandably, this first surface 2210 also can be ellipsoid, sphere or parabola.Second curved surface 2212 in the roof face 221 of described exiting surface 22 bends towards the direction away from incidence surface 21.In the present embodiment, this second curved surface 2212 is a free form surface, and understandably, this second curved surface 2212 also can be ellipsoid, sphere or parabola.
In the present embodiment, axially symmetric structure centered by described lens 20, it has a central shaft X.The incidence surface 21 of these lens 20 is that central shaft is symmetrical about the central shaft X of these lens 20.The exiting surface 22 of these lens 20 is that central shaft is symmetrical about the central shaft X of these lens 20.The first surface 2210 of this exiting surface 22 is that central shaft is symmetrical about the central shaft X of these lens 20.Second curved surface 2212 of this exiting surface 22 is that central shaft is symmetrical about the central shaft X of these lens 20.The joint face 23 of these lens 20 is perpendicular to the central shaft X of these lens 20.The joint face 23 of these lens 20 is perpendicular to side wall surface 222.The optical axis O of described the light source 10 and central shaft X of this lens 20 coincides and arranges.
Please refer to Fig. 1 to Fig. 5, in using, the light sent when described light source 10 is after the incidence surface 21 of lens 20 enters lens 20, due to four points of discontinuous settings of cambered surface 210 of lens 20, thus the light that sends of described light source 10 when entering lens 20 will spread by four points of cambered surfaces 210 and separate and form four strands of essentially independent light beams, finally all light again after first surface 2210, second curved surface 2212 of lens 20 and side wall surface 222 reflect by exiting surface 22 outgoing, make light source module 100 of the present invention can obtain a light type roughly in butterfly.
Compared with prior art, light source module 100 of the present invention achieves reduction forward light intensity, strengthens the optical effect that side direction light intensity also can obtain specific light type.
Be understandable that, for the person of ordinary skill of the art, the change and distortion that other various picture answers can be made by technical conceive according to the present invention, and all these change the protection domain that all should belong to the claims in the present invention with distortion.
Claims (10)
1. lens, comprise incidence surface, the exiting surface be oppositely arranged with this incidence surface and be connected the joint face of this incidence surface and exiting surface, described joint face is the ring plain arranged around this incidence surface, the outer peripheral edge of described exiting surface and joint face connects, described exiting surface comprises the roof face that is positioned at above described incidence surface and upwards extends to form from the outer peripheral edge of described joint face, and the side wall surface connected with the outer peripheral edge in this roof face, it is characterized in that: described incidence surface is formed by caving in this lens interior in the middle part of the bottom surface of these lens, this incidence surface comprises multiple discontinuous point of cambered surface, be non-smooth connection between two points of adjacent cambered surfaces, formation one boundary line is intersected between point cambered surface of adjacent two.
2. lens as claimed in claim 1, is characterized in that: described each point of cambered surface is the concave surface that width reduces from bottom to top gradually.
3. lens as claimed in claim 1, is characterized in that: described boundary line intersects at same intersection point jointly.
4. lens as claimed in claim 1, is characterized in that: described roof face comprise be positioned at first surface directly over incidence surface and around this first surface arrange and with the second curved surface of this first surface smooth connection.
5. lens as claimed in claim 4, is characterized in that: described first surface bends towards the direction near incidence surface, and described first surface is any one in free form surface, ellipsoid, sphere, parabola.
6. lens as claimed in claim 4, it is characterized in that: described second curved surface is ring-type curved surface, and it bends towards the direction away from incidence surface, described second curved surface is any one in free form surface, ellipsoid, sphere, parabola.
7. lens as claimed in claim 1, it is characterized in that: the quantity of point cambered surface of described incidence surface is four, described four points of cambered surfaces are oppositely arranged between two.
8. lens as claimed in claim 1, it is characterized in that: axially symmetric structure centered by described lens, it has a central shaft.
9. lens as claimed in claim 8, is characterized in that: described incidence surface be that central shaft is symmetrical about the central shaft of these lens, and the exiting surface of these lens is central shaft symmetry about the central shaft of these lens, and the joint face of these lens is perpendicular to the central shaft of these lens.
10. a light source module, comprises a light source and just to the lens that this light source is arranged, it is characterized in that: these lens are lens as claimed in any one of claims 1-9 wherein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310523147.4A CN104595848A (en) | 2013-10-30 | 2013-10-30 | Lens and light source module using lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310523147.4A CN104595848A (en) | 2013-10-30 | 2013-10-30 | Lens and light source module using lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104595848A true CN104595848A (en) | 2015-05-06 |
Family
ID=53121803
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310523147.4A Pending CN104595848A (en) | 2013-10-30 | 2013-10-30 | Lens and light source module using lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104595848A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108253380A (en) * | 2016-12-28 | 2018-07-06 | 苏州欧普照明有限公司 | A kind of optical element and the lighting device with the optical element |
| CN108604055A (en) * | 2015-12-28 | 2018-09-28 | 球面光学有限公司 | Omnidirection refringent/reflection lens with odd item aspherical profile or poly-lens |
| WO2022246980A1 (en) * | 2021-05-26 | 2022-12-01 | 南京微纳科技研究院有限公司 | Endoscope lighting system and lens thereof, and endoscope device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1808728A (en) * | 2005-01-20 | 2006-07-26 | 财团法人工业技术研究院 | Mirror and homogeneously luminous LED utilizing the mirror |
| US20090302341A1 (en) * | 2008-06-06 | 2009-12-10 | Hon Hai Precision Industry Co., Ltd. | Light-emitting diode light source module |
| EP2317216A2 (en) * | 2009-10-29 | 2011-05-04 | Foxsemicon Integrated Technology, Inc. | Optical Lens |
| CN102116452A (en) * | 2009-12-30 | 2011-07-06 | 天津滨海管理科学研究院 | Trigone LED (light-emitting diode) light source manufacture method |
| CN102434850A (en) * | 2011-10-28 | 2012-05-02 | 欧司朗股份有限公司 | Lens for light-emitting diode (LED) lighting device and LED lighting device with lens |
| CN102468411A (en) * | 2010-11-10 | 2012-05-23 | 台湾积体电路制造股份有限公司 | Batwing beam based led and backlight module using the same |
| WO2013141649A1 (en) * | 2012-03-23 | 2013-09-26 | Seoul Semiconductor Co., Ltd. | Light emitting unit array and light diffusing lens suitable for the same |
-
2013
- 2013-10-30 CN CN201310523147.4A patent/CN104595848A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1808728A (en) * | 2005-01-20 | 2006-07-26 | 财团法人工业技术研究院 | Mirror and homogeneously luminous LED utilizing the mirror |
| US20090302341A1 (en) * | 2008-06-06 | 2009-12-10 | Hon Hai Precision Industry Co., Ltd. | Light-emitting diode light source module |
| EP2317216A2 (en) * | 2009-10-29 | 2011-05-04 | Foxsemicon Integrated Technology, Inc. | Optical Lens |
| CN102116452A (en) * | 2009-12-30 | 2011-07-06 | 天津滨海管理科学研究院 | Trigone LED (light-emitting diode) light source manufacture method |
| CN102468411A (en) * | 2010-11-10 | 2012-05-23 | 台湾积体电路制造股份有限公司 | Batwing beam based led and backlight module using the same |
| CN102434850A (en) * | 2011-10-28 | 2012-05-02 | 欧司朗股份有限公司 | Lens for light-emitting diode (LED) lighting device and LED lighting device with lens |
| WO2013141649A1 (en) * | 2012-03-23 | 2013-09-26 | Seoul Semiconductor Co., Ltd. | Light emitting unit array and light diffusing lens suitable for the same |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108604055A (en) * | 2015-12-28 | 2018-09-28 | 球面光学有限公司 | Omnidirection refringent/reflection lens with odd item aspherical profile or poly-lens |
| CN108604055B (en) * | 2015-12-28 | 2021-05-25 | 球面光学有限公司 | Omnidirectional catadioptric lens with odd-order aspheric profile or multiple lenses |
| US11137582B2 (en) | 2015-12-28 | 2021-10-05 | Spere Optics Company, Llc | Omnidirectional catadioptric lens with odd aspheric contour or multi-lens |
| CN108253380A (en) * | 2016-12-28 | 2018-07-06 | 苏州欧普照明有限公司 | A kind of optical element and the lighting device with the optical element |
| WO2022246980A1 (en) * | 2021-05-26 | 2022-12-01 | 南京微纳科技研究院有限公司 | Endoscope lighting system and lens thereof, and endoscope device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201281290Y (en) | Both-side illuminating optical lens | |
| CN105402687A (en) | Condensing lens and lamp using same | |
| CN104279506A (en) | Optical lens and light-emitting element with same | |
| CN104344333A (en) | Optical lens and light-emitting element applying same | |
| US9976707B2 (en) | Color mixing output for high brightness LED sources | |
| CN104421833A (en) | Lens and light source module comprising same | |
| CN104566203A (en) | Lens and light source module using lens | |
| TWI582350B (en) | Lens and light source module having the same | |
| CN104595848A (en) | Lens and light source module using lens | |
| CN104421832A (en) | Lens and light-emitting element comprising same | |
| CN104456416A (en) | Lens and light source module with same | |
| CN104456415A (en) | Lens and light source module with same | |
| TW201506456A (en) | Lens module and light source device incorporating the same | |
| US20150003078A1 (en) | Lens with rectangular light pattern and led unit using the same | |
| US9140827B2 (en) | Lens, LED light source unit having the lens and LED light source module incorporating the unit | |
| TWI582345B (en) | Lens and light source module having the same | |
| US8779442B2 (en) | LED module | |
| CN104344343A (en) | Optical lens and light source module with optical lens | |
| CN104251461A (en) | Lens and light source module with same | |
| TWI599800B (en) | Lens and light source module having the same | |
| CN104748068A (en) | Lens and light source module using lens | |
| CN104251395A (en) | Lens, light source device adopting same and light source module | |
| CN109099389B (en) | Aspheric lens capable of realizing uniform illumination of square light spots | |
| TW201525522A (en) | Lens assembly and light source module having the same | |
| TW201512595A (en) | Lens and light source module having the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150506 |
|
| WD01 | Invention patent application deemed withdrawn after publication |