CN105676322A - Thin lens - Google Patents
Thin lens Download PDFInfo
- Publication number
- CN105676322A CN105676322A CN201410677355.4A CN201410677355A CN105676322A CN 105676322 A CN105676322 A CN 105676322A CN 201410677355 A CN201410677355 A CN 201410677355A CN 105676322 A CN105676322 A CN 105676322A
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- China
- Prior art keywords
- slimming
- face part
- eyeglass
- curved face
- curved
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- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The invention relates to a lens, and especially relates to a lens for lighting. The invention discloses a thin lens comprising a curved surface part, an outer periphery and a toothed grain part. The curved part in the center region includes at least one curved surface, and the outer contour of the curved surface part is non-circular. The outer periphery surrounds the curved surface part. The toothed grain part between the curved surface part and the outer periphery includes at least two concave-convex grain areas, and each concave-convex grain area is provided with a concave-convex grain surface which extends outward around a center. The thin lens is used for converging light emitted by an LED lamp to a specific area. Through combination of the curved surface part and the toothed grain part, a uniform light mixing effect is achieved, and wide-angle light can be converged to improve the intensity of illumination in the center.
Description
Technical field
The invention relates to a kind of eyeglass, refer to a kind of eyeglass for throwing light on especially.
Background technology
The Fresnel lens (Fresnellens) of prior art is in the application of the photoflash lamp of photographic film, as US8729571 patent disclose, it is be arranged in two LED with predetermined space in pairs respectively, light to be led pre-determined direction, owing to the thickness of this Fresnel lens is quite thin, it is particularly suitable for portable electronic installation, such as mobile phone terminal or tablet PC.
Due to above-mentioned Fresnel lens be on the whole with the face type of convex lens carry out cutting thinning, therefore the optical property of above-mentioned Fresnel lens is as convex lens, the light that can only merely send for these LED carries out collecting to specific region, cause for these LED through above-mentioned Fresnel lens adjust after light type quite simple, not easily effectively change light angle, and above-mentioned Fresnel lens cannot effectively by these LED even light mixing, in addition, owing to these LED are area source, the spuious light in direction is in by behind Fresnel lens center, it is difficult to be led to predetermined photograph locate, and cause the loss of light, therefore above-mentioned fresnel lens structure is designed with to be modified. .
Summary of the invention
Therefore, the object of the present invention, namely can evenly mix light in offer one, and can promote the slimming eyeglass of center illumination.
So, slimming eyeglass of the present invention, comprises a curved face part, an outer peripheral edge and a tooth shape lines portion.
This curved portion is in centre, and comprises at least one curved surface, and the outline of this curved face part is non-circle. This outer peripheral edge is around this curved face part. This tooth shape lines portion is positioned between this curved face part and this outer peripheral edge, and comprises at least two concave convex texture districts. Each concave convex texture district has one around an outward extending asperities road surface, center, and this concave convex texture district is centrally located at centre.
Effect of the present invention is, arranges in pairs or groups this tooth shape lines portion by this curved face part, except reaching the effect of evenly mixed light, also can restrain the light of wide-angle, and then promotes predetermined by the center illumination according to place. This curved face part can be lifted out optical efficiency, reduces light losing.
Accompanying drawing explanation
Other the feature of the present invention and effect, clearly present in illustrating in detail in the better embodiment with reference to accompanying drawing, wherein:
Fig. 1 is a stereographic map, illustrates that one first embodiment of slimming eyeglass of the present invention is used for a means of illumination of a portable electronic devices, and this means of illumination also comprises the LED that two are arranged at intervals at this slimming eyeglass side;
Fig. 2 is a frontview, illustrates that this slimming eyeglass has a curved face part, an outer peripheral edge and a concave convex texture portion;
Fig. 3 is one by the sectional view acquired by the straight line III-III in Fig. 2;
Fig. 4 is one by the sectional view acquired by the straight line IV-IV in Fig. 2;
Fig. 5 is a part sectioned view, illustrates that the incidence surface of this curved face part has a convex surface district and a concave regions;
Fig. 6 is a part sectioned view, illustrates that the incidence surface of this curved face part has two concave regions;
Fig. 7 is a part sectioned view, illustrates that the incidence surface of this curved face part has a convex surface district;
Fig. 8 is a part sectioned view, illustrates that the incidence surface of this curved face part has a concave regions;
Fig. 9 is a schematic diagram, and one the 2nd embodiment of slimming eyeglass of the present invention is described;
Figure 10 is one by the sectional view acquired by the straight line X-X in Fig. 9;
Figure 11 is one by the sectional view acquired by the straight line XI-XI in Fig. 9;
Figure 12 is a schematic diagram, illustrates that the 2nd embodiment has the state in four concave convex texture districts;
Figure 13 is a schematic diagram, and one the 3rd embodiment of slimming eyeglass of the present invention is described;
Figure 14 is one by the sectional view acquired by the straight line X IV-X IV in Figure 13;
Figure 15 is one by the sectional view acquired by the straight line XV-XV in Figure 13;
Figure 16～Figure 18 is the schematic diagram of the asperities road surface ovalize that the 3rd embodiment is described;
Figure 19 is the schematic diagram illustrating that this asperities road surface of the 3rd embodiment is rectangular;
Figure 20 illustrates that the plural convex surface district of the 3rd embodiment has different curvature and magnitude range;
Figure 21 is a schematic diagram, and one the 4th embodiment of slimming eyeglass of the present invention is described;
Figure 22 is one by the sectional view acquired by the straight line XX II-XX II in Figure 21; And
Figure 23 is one by the sectional view acquired by the straight line XX III-XX III in Figure 21.
Embodiment
Consult Fig. 1, Fig. 2, Fig. 3 and Fig. 4, one first embodiment of slimming eyeglass of the present invention, it is applicable to the means of illumination 3 of the portable electronic devices just like mobile phone or tablet PC etc., this means of illumination 3 has most LED 31 and this slimming eyeglass 4, in the present embodiment, the quantity of the LED 31 of this means of illumination 3 is two and has white and Yellow luminous colour temperature respectively, and these LED 31 are mutually arranged in pairs or groups and reached the illumination effect of variation. Before this slimming eyeglass 4 is arranged at these LED 31, and comprise the outer peripheral edge 6 of curved face part 5, around this curved face part 5 that comprises an outline 51, and the tooth shape lines portion 7 that is positioned between this curved face part 5 and this outer peripheral edge 6.
This curved face part 5 is positioned at the centre of this slimming eyeglass 4, and outline 51 scope of this curved face part 5 contains these LED 31. The outline 51 of this curved face part 5 is non-circle. In the present embodiment, the outline 51 of this curved face part 5 has the two long limits 511 being oppositely arranged, and two two opposite end point connecting these long limits 511 respectively and the short limit 512 being oppositely arranged, and these short limits 512 are positioned on this outer peripheral edge 6.
This curved face part 5 comprises one towards the incidence surface 52 of these LED 31, and one in contrast to the exiting surface 53 of this incidence surface 52. The incidence surface 52 of this curved face part 5 is a curved surface, and comprises the convex surface district 521 of two difference these LED 31 corresponding, and the exiting surface 53 of this curved face part 5 is a plane. It should be noted that the face type change of the incidence surface 52 of this curved face part 5 and exiting surface 53 is not limited with above-mentioned, the incidence surface 52 of this curved face part 5 and exiting surface 53 also can be respectively above-mentioned plane and curved surface, also or both are all curved surface.
This curved face part 5 is all partially folded by the light that these LED 31 major parts are sent by these convex surface districts 521 respectively and restraints the position to demand.In the present embodiment, due to these LED 31 different colors temperature, namely these LED 31 send the light of different wave length respectively, or these LED 31 send different luminous light type respectively, this slimming eyeglass 4 is made to have different refraction angles respectively for the light-emitting line of these LED 31, therefore by not identical for the design of the curved transition in these convex surface districts 521, thus reach approximate and partially fold Shu Xiaoguo. It should be noted that the curved transition of these curved regions 521 is not limited with above-mentioned, it is possible to adjusted change according to different bright dipping light type demand.
It will be further appreciated that, the concavo-convex change of the incidence surface 52 of this curved face part 5 is not limited with above-mentioned, change can be adjusted according to different bright dipping light type demand, the incidence surface 52 of this curved face part 5 is made to have convex surface district 521 and a concave regions 522 (as shown in Figure 5) of these LED 31 corresponding respectively, or there is the concave regions 522 (as shown in Figure 6) of two difference these LED 31 corresponding, also or only there is convex surface district 521 (as shown in Figure 7) or concave regions 522 (as shown in Figure 8) that a scope contains these LED 31.
In the present embodiment, the shape of the outer peripheral edge 6 of this slimming eyeglass 4 is circular, but not as limit, the bright dipping light type of the shape of this outer peripheral edge 6 these LED 31 visual or this means of illumination 3 assembling kenel in this portable electronic devices, and change to some extent, also can be rectangle.
Consulting Fig. 1, Fig. 2, Fig. 3 and Fig. 4, this tooth shape lines portion 7 comprises one towards the incidence surface 71 of these LED 31, and one in contrast to the exiting surface 72 of this incidence surface 71. The incidence surface 71 in this tooth shape lines portion 7 has the concave convex texture district 711 of two difference these LED 31 corresponding, and the exiting surface 72 in this tooth shape lines portion 7 is a plane. Each concave convex texture district 711 has an asperities road surface 712. Each asperities road surface 712 is around the center C of corresponding each LED 31 and extends out to this outer peripheral edge 6 by the incidence surface 52 of this curved face part 5.
In the present embodiment, each asperities road surface 712 is formed by several the circular tapered planes around each center C connect, and the light guide for each all the other larger angle of LED 31, be be totally reflected mode partially fold bundle or partially folding to the position wanted, thus effectively by the light guide focus utilization of wide-angle. It is worth mentioning that, the structure on each asperities road surface 712 is not limited with above-mentioned, also can be most circular tapered plane around each center C and most circular it is formed by connecting around each center C and the curved surface that interts between these tapered planes, and can reflect, be totally reflected or refractive Iy folds bundle partially for the light guide of the larger angle of each LED 31. But each asperities road surface 712 is not limited around texture structure with above-mentioned circular rings, also can change to some extent according to the bright dipping light type design of each LED 31, such as oval (as Suo Shi Figure 16～18) or rectangle (as shown in figure 19) etc. are around texture structure, the hot spot of irradiation can be adjusted by this, and then it is applicable to dissimilar portable electronic devices.
In the present embodiment, the convex surface district 521 of this curved face part 5 is the incidence surface 71 protruding from this tooth shape lines portion 7, and this curved face part 5 is the 44% of this slimming eyeglass 4 shadow area whole along the shadow area in the optical axis I direction of this slimming eyeglass 4, the suggestion of this ratio is better between 20%-60%, most of light guide of these LED 31 so can be made partially to roll over by this curved face part 5, reach the regulation and control of preferably bright dipping light type, the lightening effect of eyeglass simultaneously reaching certain by this tooth shape lines portion 7, this ratio is better between 25%～55%.
Through as shown in the above description, first embodiment of the lightening eyeglass of the present invention 4 passes through this curved face part 5 by most of light guide of these LED 31, when not loss of gloss, inclined folding is to the position wanted, thus reach the regulation and control of preferably bright dipping light type, and reach the lightening effect of eyeglass by this tooth shape lines portion 7, and by the effective focus utilization of light guide of these all the other larger angle of LED 31.
Consult Fig. 9, Figure 10 and Figure 11, one the 2nd embodiment of slimming eyeglass of the present invention, roughly going up similar in appearance to this first embodiment, difference is: the outline 51 of this curved face part 5 is rectangle, and these asperities road surfaces 712 are the incidence surfaces 52 surrounding this curved face part 5. By this, the 2nd embodiment also can reach effect identical with this first embodiment. What deserves to be explained is, what the 2nd embodiment also can have these concave convex texture districts 711 of different quantities arranges kenel, consult Figure 12, the quantity in these disclosed concave convex texture districts 711 is four, and be respectively adjacent to these LED 31 corresponding and arrange, and the tapered plane in each concave convex texture district 712 is also formed around each center C, reach the mixed light effect of different kenel by this, only it is not limited with the quantity of above-mentioned exposure.
Consult Figure 13, Figure 14 and Figure 15, one the 3rd embodiment of slimming eyeglass of the present invention, roughly go up similar in appearance to the 2nd embodiment, difference is: the outline 51 of this curved face part 5 has the two long limits 511 of the straight line being oppositely arranged, and the outer convex arc edge 513 of two opposite end point that two connect these long limits 511 respectively, and these asperities road surfaces 712 are the incidence surfaces 52 surrounding this curved face part 5. By this, the 3rd embodiment also can reach effect identical with the 2nd embodiment, and the design of these outer convex arc edges 513 can provide the light of more concave convex texture district convergence wide-angle, promotes predetermined by the illumination according to place, and outward appearance is comparatively attractive in appearance. This curved face part 5 of this embodiment is the 30% of this slimming eyeglass 4 shadow area whole along the shadow area in the optical axis I direction of this slimming eyeglass 4.
What deserves to be explained is, Figure 16, Figure 17 and Figure 18 are the states disclosing these asperities road surface 712 ovalizes, Figure 19 discloses the rectangular state in these asperities road surfaces 712, wherein, the quantity in these concave convex texture districts 711 disclosed by Figure 18 and Figure 19 is three, and wherein a concave convex texture district 711 be centrally located at centre and the geometry symmetry centre of this curved face part 5 that substantially overlaps, and around being disposed therein the outside in another two concave convex texture districts 711, reach preferably bright dipping light type by this. These convex surface districts 521 that Figure 20 is then the incidence surface 52 disclosing this curved face part 5 have different curvature and magnitude range, reach excellent mixed light effect by this, or the bright dipping light type profile different from the 2nd embodiment.
Consult Figure 21, Figure 22 and Figure 23, one the 4th embodiment of slimming eyeglass of the present invention, roughly go up similar in appearance to the 2nd embodiment, difference is: the outline 51 of this curved face part 5 is formed by convex arc edge 513 all round, and these asperities road surfaces 712 are the incidence surfaces 52 surrounding this curved face part 5. By this, the 4th embodiment also can reach effect identical with the 2nd embodiment, and can adjust the light mixng proportion of these LED 31, and obtains the bright dipping light type profile different from the 2nd embodiment, and then the mixed light effect making these LED 31 is better. In addition, 2nd embodiment also can as shown in Fig. 5 to Fig. 8 to the incidence surface 52 of the 4th embodiment curved face part 5, it is designed to the concave regions 522 with a convex surface district 521 and 522, two, concave regions difference these LED 31 corresponding, also or only there is convex surface district 521 or concave regions 522 that a scope contains these LED 31.
In sum, slimming eyeglass 4 of the present invention, by this curved face part 5, except reaching the effect of evenly mixed light, also can restrain the light of wide-angle, and then promotes predetermined by the center illumination according to place, therefore really can reach the object of the present invention. In addition, the curved face part 5 of this slimming eyeglass 4 centre, can improve the light losing that the light that in prior art, direction is spuious is caused by Fresnel lens, thus be lifted out optical efficiency.
Although specifically showing in conjunction with preferred embodiment and describing the present invention; but the technician of art should be understood that; not departing from the spirit and scope of the present invention that appended claims limits; the present invention can be made a variety of changes in the form and details, be protection scope of the present invention.
Claims (13)
1. a slimming eyeglass, comprises:
One curved face part, is positioned at centre, and comprises at least one curved surface, and the outline of this curved face part is non-circle;
One outer peripheral edge, around this curved face part; And
One tooth shape lines portion, is positioned between this curved face part and this outer peripheral edge, and comprises at least two concave convex texture districts, and each concave convex texture district has one around an outward extending asperities road surface, center.
2. slimming eyeglass as claimed in claim 1, it is characterised in that: this curved face part is whole this slimming eyeglass shadow area 20%-60% along the shadow area of an optical axis direction.
3. slimming eyeglass as claimed in claim 1, it is characterised in that: the part region of this curved face part protrudes from this tooth shape lines portion.
4. slimming eyeglass as claimed in claim 1, it is characterised in that: the outline of this curved face part has two opposite end point that the two long limits and two being oppositely arranged connect these long limits respectively and the short limit being oppositely arranged, and these short limits are positioned on this outer peripheral edge.
5. slimming eyeglass as claimed in claim 1, it is characterised in that: this tooth shape lines portion is around around this curved face part.
6. slimming eyeglass as claimed in claim 5, it is characterised in that: the outline of this curved face part is rectangle.
7. slimming eyeglass as claimed in claim 5, it is characterised in that: the outline of this curved face part has the outer convex arc edge that the two long limits of the straight line being oppositely arranged and two connect two opposite end point on the long limit of these straight lines respectively.
8. slimming eyeglass as claimed in claim 5, it is characterised in that: the outline of this curved face part is formed by convex arc edge all round.
9. slimming eyeglass as claimed in claim 1, it is characterised in that: this curved surface has at least one convex surface district.
10. slimming eyeglass as claimed in claim 1, it is characterised in that: this curved surface has a convex surface district and a concave regions.
11. slimming eyeglasses as claimed in claim 1, it is characterised in that: this curved surface has at least one concave regions.
12. slimming eyeglasses as claimed in claim 1, it is characterised in that: the concave convex texture district quantity in this tooth shape lines portion is four, and the center on these asperities road surfaces lays respectively at two opposition sides of this curved face part between two.
13. slimming eyeglasses as claimed in claim 1, it is characterised in that: this curved surface comprises two convex surface districts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410677355.4A CN105676322A (en) | 2014-11-21 | 2014-11-21 | Thin lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410677355.4A CN105676322A (en) | 2014-11-21 | 2014-11-21 | Thin lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105676322A true CN105676322A (en) | 2016-06-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410677355.4A Pending CN105676322A (en) | 2014-11-21 | 2014-11-21 | Thin lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105676322A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1667436A (en) * | 2004-03-10 | 2005-09-14 | 西铁城电子股份有限公司 | Lens having Fresnel lens surface and lighting device using the same |
| US20050212062A1 (en) * | 2004-03-26 | 2005-09-29 | Shih-Yuan Chang | Light collector for an LED array |
| CN101253362A (en) * | 2005-08-10 | 2008-08-27 | 飞利浦拉米尔德斯照明设备有限责任公司 | Light emitting diode comprising multiple dies and optical system with number of lens elements |
| CN101761847A (en) * | 2008-12-25 | 2010-06-30 | 市光工业株式会社 | Vehicle headlamp |
| CN103187408A (en) * | 2011-12-30 | 2013-07-03 | 展晶科技(深圳)有限公司 | Light-emitting diode packaging structure |
-
2014
- 2014-11-21 CN CN201410677355.4A patent/CN105676322A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1667436A (en) * | 2004-03-10 | 2005-09-14 | 西铁城电子股份有限公司 | Lens having Fresnel lens surface and lighting device using the same |
| US20050212062A1 (en) * | 2004-03-26 | 2005-09-29 | Shih-Yuan Chang | Light collector for an LED array |
| CN101253362A (en) * | 2005-08-10 | 2008-08-27 | 飞利浦拉米尔德斯照明设备有限责任公司 | Light emitting diode comprising multiple dies and optical system with number of lens elements |
| CN101761847A (en) * | 2008-12-25 | 2010-06-30 | 市光工业株式会社 | Vehicle headlamp |
| CN103187408A (en) * | 2011-12-30 | 2013-07-03 | 展晶科技(深圳)有限公司 | Light-emitting diode packaging structure |
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Application publication date: 20160615 |