CN103883977A - Lens and light source module with same - Google Patents
Lens and light source module with same Download PDFInfo
- Publication number
- CN103883977A CN103883977A CN201210563757.2A CN201210563757A CN103883977A CN 103883977 A CN103883977 A CN 103883977A CN 201210563757 A CN201210563757 A CN 201210563757A CN 103883977 A CN103883977 A CN 103883977A
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- China
- Prior art keywords
- lens
- emitting diode
- light emitting
- holding section
- source module
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Abstract
The invention relates to a lens which is used for correcting light emitted by a light emitting diode. The lens comprises an undersurface and a top surface connected with the undersurface and upwards protruding from the undersurface, the middle portion of the undersurface is recessed towards the top surface to form an optical curved surface, a clamping portion is arranged at a position, on the periphery of the optical curved surface, of the undersurface, and a groove used for containing and clamping the light emitting diode is formed in the clamping portion. Compared with the prior art, the lens has the advantages that the clamping portion is arranged on the periphery of the optical curved surface of the undersurface in an adjacent-connection manner, and the clamping portion and the undersurface surrounding the same are combined to form the groove to contain and clamp the light emitting diode, so that relative position of the light emitting diode and the lens can be controlled more accurately in the process of assembly. The invention further relates to a light source module with the lens.
Description
Technical field
The present invention relates to optical field, relate in particular to a kind of lens and there is the light source module of these lens.
Background technology
Light emitting diode (Light Emitting Diode, LED) be a kind of semiconductor element that current conversion can be become to the light of particular range of wavelengths, rely on the advantages such as its luminous efficiency is high, volume is little, lightweight, environmental protection, be widely applied in the middle of current every field.In order to utilize better light emitting diode, around light emitting diode, can be coated a lens on light and carry out secondary optics correction.
Industry is in the time of assembling light emitting diode and lens, conventionally first utilize surface mounting technology that light emitting diode is fixed on printed circuit board (PCB), then fix at lens bottom design feet utilization point glue processing procedure and printed circuit board (PCB), lens are placed in to light emitting diode top.And the location of light emitting diode and lens is to utilize the pattern of having drawn on circuit board, respectively two elements are fixed in affiliated pattern area by optical image mode.While being fixed on printed circuit board (PCB) due to light emitting diode and lens, can produce separately error, cause the location between light emitting diode and lens accurate not.Therefore, need further improve.
Summary of the invention
In view of this, be necessary to provide a kind of and can and adopt the light source module of these lens with the lens of light emitting diode precise positioning.
A kind of lens, it is proofreaied and correct for the light that light emitting diode is sent, these lens comprise the end face that a He Yugai bottom surface, bottom surface joins and upwards protrudes out from bottom surface, middle part, described bottom surface is recessed to form an optical surface towards described end face, described bottom surface is positioned at optical surface periphery and is provided with a holding section, forms one for accommodating the groove that holds light emitting diode in described holding section.
A kind of light source module, it comprises substrate, be arranged on light emitting diode and lens on substrate, these lens comprise the end face that a He Yugai bottom surface, bottom surface joins and upwards protrudes out from bottom surface, middle part, described bottom surface is recessed to form an optical surface towards described end face, described bottom surface is positioned at optical surface periphery and is provided with a holding section, forms one for accommodating the groove that holds light emitting diode the inner surface of holding section described at least part of butt of described light emitting diode in described holding section.
The light source module of the lens of the embodiment of the present invention and this kind of lens of employing, because the optical surface of bottom surface is peripheral in abutting connection with being provided with a holding section, the groove that its bottom surface enclosing, described holding section is combined to form is accommodated and is held described light emitting diode.Thereby in the process of assembling, control more accurately the relative position of light emitting diode and lens.
Accompanying drawing explanation
The schematic perspective view of the lens in the light source module that Fig. 1 provides for an embodiment of the present invention.
Fig. 2 is the generalized section that the lens in Fig. 1 coordinate the light source module of light emitting diode composition.
The generalized section of the light source module that Fig. 3 provides for another embodiment of the present invention.
Main element symbol description
| |
100、 |
| Substrate | |
| 10、10a | |
| |
20、 |
| Lens | |
| 30、30a | |
| |
11 |
| |
12 |
| |
21 |
| |
31 |
| |
32 |
| |
33 |
| |
34、34a |
| Groove | 35、35a |
| |
311 |
| |
321 |
| Cambered |
322 |
| |
323 |
| Rectangular | 341 |
The following specific embodiment further illustrates the present invention in connection with above-mentioned accompanying drawing.
The specific embodiment
Refer to Fig. 1 and Fig. 2, the light source module 100 that embodiment of the present invention provides comprises substrate 10, is arranged on light emitting diode 20 and lens 30 on substrate 10.
Described substrate 10 is rectangular-shaped, and it comprises a upper surface 11 and the lower surface 12 relative with this upper surface 11.Its upper surface 11 is for having the flat surface of transmission line.This substrate 10 can be printed circuit board (PCB), metal substrate, silicon substrate or ceramic substrate etc.In the present embodiment, described substrate 10 is printed circuit board (PCB).
Described Light-Emitting Diode 20 is formed on the upper surface 11 of this substrate 10.This light emitting diode 20 is the packaging body of a moulding, and it is formed and be electrically connected and be fixed on substrate 10 by the electrode structure (not shown) on two pins (not shown) and this substrate 10.Understandable, the chip in described light emitting diode 20 can be the chip portfolio of multiple different wave length.In the present embodiment, the profile of described light emitting diode 20 is cube.Packaging body has a smooth exiting surface 21, and the light that this light emitting diode 20 sends penetrates to the packaging body of light emitting diode 20 from this exiting surface 21.
Described lens 30 comprise a bottom surface 31, an end face 32, be arranged on the support portion 33 of bottom surface 31 peripheries and be positioned at a holding section 34 of bottom surface 31.
This bottom surface 31 is a plane, roughly rounded in the present embodiment.31 middle parts, described bottom surface are recessed to form an optical surface 311 towards these end face 32 directions, described optical surface 311 is positioned at the top of light emitting diode 20 corresponding with light emitting diode 20, in the present embodiment, the profile of this optical surface 311 is an ellipsoid, and the slope in the cross section of this optical surface 311 reduces on the optical axis direction along lens 30 gradually from bottom surface 31.Be that from bottom surface 31, the optical axis along lens 30 reduces towards end face 32 described optical surface 311.
This end face 32 is located at the top of bottom surface 31 and away from substrate 10.This end face 32 comprises the cambered surface 322 of the concave surface 321, concave surface 321 peripheries that are positioned at center of top and the side 323 around lens 30 sidepieces.This concave surface 321 is positioned at the central authorities of lens, and the optical surface 311 to bottom surface 31 just.This concave surface 321 can be the arc surface recessed towards optical surface 311 etc., for dispersing the forward light that arrives concave surface 321.This cambered surface 322 is that the radius of curvature of this cambered surface 322 is greater than the radius of curvature of concave surface 321 to the curved surface protruding out away from the direction of light emitting diode 20.The bottom peripheral edge of this end face 32 is connected with the outer perimeters of bottom surface 31.
Described support portion 33 is positioned at the periphery of bottom surface 31 so that lens 30 are fixed on substrate 10.In the present embodiment, described support portion 33 comprises that mutually evenly interval arranges 3 support columns 331.Support column 331 is positioned at the outer perimeters place near bottom surface 31.Understandable, in other embodiment, this support portion 33 also can be other shapes, as strip of circular, space etc.
Described holding section 34 arranges ringwise, and it is located at these 31 surfaces, bottom surface and protrudes out towards substrate 10, also towards protruding out away from the direction of end face 32.This holding section 34 is adjacent to the outer peripheral edges of optical surface 311, also between this holding section 34 and optical surface 311, goes back the bottom surface 31 of exposed portions serve, and the bottom surface 31 of this part is for supporting light emitting diode 20.The external diameter of this holding section 34 is less than the external diameter of this bottom surface 31.Therefore the region between bottom surface 31 and the end face 32 of these lens 30, all for conducting light, is fully utilized these lens 30, controls the production cost of lens 30 simultaneously.The bottom surface 31 of the above-mentioned part of exposing that described holding section 34 encloses with it is combined to form a groove 35, so that light emitting diode 20 is accommodated and to be held in this groove 35.In this enforcement, holding section 34 ring-type that is square, it comprises head and the tail 4 rectangular 341 of docking successively.Each rectangular 341 with these optical surface 311 interval one fine pitch, the height of described holding section 34 is less than the height of this support portion 33, this holding section 34 is shaped on the bottom surface 31 of lens 30 according to the profile of light emitting diode 20 packaging bodies and size.The material of this holding section 34 is identical with the material of these lens 30, so can not affect the light effect that of lens 30.Understandable, this holding section 34 also can with the direct adjacency of the outer peripheral edges of optical surface 311, between this holding section 34 and optical surface 311 without exposing bottom surface 31.
When assembling, first described light emitting diode 20 is fixed on substrate 10 by surface mounting technology, and then lens 30 are fixed on substrate 10, concrete, the packaging body of described Light-Emitting Diode 20 is partly or entirely accommodated and is fastened in this groove 35, make light emitting diode 20 more accurate with the relative position of the optical surface 311 of lens 30.In the time that the size of light emitting diode 20 is different, light emitting diode 20 offsets with this bottom surface 31, or with this bottom surface 31 separately, that is to say, the exiting surface 21 of light emitting diode 20 is equal with bottom surface 31, or the exiting surface 21 of light emitting diode 20 is lower than bottom surface 31.
The light source module 100 of the lens 30 of the embodiment of the present invention and this kind of lens 30 of employing, because the optical surface 311 of bottom surface 31 is peripheral in abutting connection with being provided with a holding section 34, the groove 35 that the bottom surface 31 that described holding section 34 encloses with it is combined to form is accommodated and is held described light emitting diode 20.Thereby in the process of assembling, control more accurately the relative position of light emitting diode 20 and lens 30.
Refer to Fig. 3, for the schematic diagram of the light source module 100a of lens 30a in another embodiment of the present invention and light emitting diode 20a composition, the structural similarity of light source module 100a and above-described embodiment in this embodiment, its difference is that 34aZi bottom surface, this holding section 31a tilts to extend towards this substrate 10a, to adapt to the size of light emitting diode 20a.In the present embodiment, the interior 31a of bottom surface without leave of described holding section 34a increases gradually towards substrate 10a, described in when assembling, light emitting diode 20a more easily slips in described groove 35a by the inclined-plane of holding section 34a inner surface, completes holding location in the time that this light emitting diode 20a size equates with this holding section 34a internal diameter.Understandable, the interior 31a of bottom surface without leave of described holding section 34a also can reduce gradually towards substrate 10a, as long as light emitting diode 20a is partly or entirely received and is fastened in this groove 35a.
Understandable, described holding section 34,34a do not limit to and square ring, and in other embodiment, this holding section 34,34a also can be other shapes, as circular, triangle ring-type etc., as long as can match with light emitting diode peripheral shape.
Be understandable that, for the person of ordinary skill of the art, can make change and the distortion that other various pictures are answered 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, it is proofreaied and correct for the light that light emitting diode is sent, these lens comprise the end face that a He Yugai bottom surface, bottom surface joins and upwards protrudes out from bottom surface, it is characterized in that: middle part, described bottom surface is recessed to form an optical surface towards described end face, described bottom surface is positioned at optical surface periphery and is provided with a holding section, forms one for accommodating the groove that holds light emitting diode in described holding section.
2. lens as claimed in claim 1, is characterized in that: in the form of a ring, it protrudes out away from the direction of end face from edge, bottom surface, and the external diameter of this holding section is less than the external diameter of this bottom surface in described holding section.
3. lens as claimed in claim 2, is characterized in that: described groove be positioned at described optical surface bottom margin below.
4. lens as claimed in claim 2, is characterized in that: described lens comprise support portion, and described support zone is in periphery, described holding section, and the height that described support portion protrudes out from bottom surface is greater than the height that described holding section protrudes out from bottom surface.
5. lens as claimed in claim 2, is characterized in that: the internal diameter of described holding section protrudes out direction along it and increases gradually.
6. lens as claimed in claim 1, it is characterized in that: described end face comprises the cambered surface of the concave surface, the concave surface periphery that are positioned at center of top and the side around lens sidepiece, described concave surface is just to optical surface and towards this optical surface depression, and this cambered surface is protruded to the direction away from bottom surface.
7. a light source module, comprises substrate, is located at light emitting diode and lens on substrate, it is characterized in that: described lens are the arbitrary described lens of 1-6 item, the inner surface of holding section described at least part of butt of described light emitting diode.
8. light source module as claimed in claim 7, is characterized in that: described groove is identical with the profile of described light emitting diode, and size equates.
9. light source module as claimed in claim 7, is characterized in that: the bottom surface of exposed portions serve between described holding section and optical surface, and described light emitting diode has exiting surface, and the bottom surface of described exiting surface and this part of exposing offsets, or separately.
10. light source module as claimed in claim 7, is characterized in that: described support portion comprises some even spaced support columns mutually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210563757.2A CN103883977A (en) | 2012-12-24 | 2012-12-24 | Lens and light source module with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210563757.2A CN103883977A (en) | 2012-12-24 | 2012-12-24 | Lens and light source module with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103883977A true CN103883977A (en) | 2014-06-25 |
Family
ID=50953014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210563757.2A Pending CN103883977A (en) | 2012-12-24 | 2012-12-24 | Lens and light source module with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103883977A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105318277A (en) * | 2014-07-30 | 2016-02-10 | 三星电子株式会社 | Lens for light emitter, light source module, lighting device, and lighting system |
| CN105546475A (en) * | 2014-06-28 | 2016-05-04 | 深圳创维－Rgb电子有限公司 | Wavelength mixing optical component |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101750643A (en) * | 2008-12-05 | 2010-06-23 | 鸿富锦精密工业（深圳）有限公司 | Lens and light source module adopting lens |
| CN102141215A (en) * | 2010-01-28 | 2011-08-03 | 奇菱科技股份有限公司 | Light source device and backlight module with same |
| CN102313162A (en) * | 2010-07-09 | 2012-01-11 | 奇菱科技股份有限公司 | Light source device and backlight module with same |
-
2012
- 2012-12-24 CN CN201210563757.2A patent/CN103883977A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101750643A (en) * | 2008-12-05 | 2010-06-23 | 鸿富锦精密工业（深圳）有限公司 | Lens and light source module adopting lens |
| CN102141215A (en) * | 2010-01-28 | 2011-08-03 | 奇菱科技股份有限公司 | Light source device and backlight module with same |
| CN102313162A (en) * | 2010-07-09 | 2012-01-11 | 奇菱科技股份有限公司 | Light source device and backlight module with same |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105546475A (en) * | 2014-06-28 | 2016-05-04 | 深圳创维－Rgb电子有限公司 | Wavelength mixing optical component |
| CN105546475B (en) * | 2014-06-28 | 2018-11-30 | 深圳创维－Rgb电子有限公司 | Wavelength hybrid optical component |
| CN105318277A (en) * | 2014-07-30 | 2016-02-10 | 三星电子株式会社 | Lens for light emitter, light source module, lighting device, and lighting system |
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Application publication date: 20140625 |