CN102003677A - Optical lens - Google Patents
Optical lens Download PDFInfo
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- CN102003677A CN102003677A CN201010527658XA CN201010527658A CN102003677A CN 102003677 A CN102003677 A CN 102003677A CN 201010527658X A CN201010527658X A CN 201010527658XA CN 201010527658 A CN201010527658 A CN 201010527658A CN 102003677 A CN102003677 A CN 102003677A
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- 230000003287 optical effect Effects 0.000 title claims abstract description 62
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 18
- 238000005286 illumination Methods 0.000 description 7
- 230000005855 radiation Effects 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- NHDHVHZZCFYRSB-UHFFFAOYSA-N pyriproxyfen Chemical compound C=1C=CC=NC=1OC(C)COC(C=C1)=CC=C1OC1=CC=CC=C1 NHDHVHZZCFYRSB-UHFFFAOYSA-N 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The invention provides an optical lens comprising a first lens part and a second lens part, wherein the first lens part comprises a first lens incidence surface and a first lens reflection surface so that optical lines emitted by an optical source reaches the first lens reflection surface through the first lens incidence surface so as to enable the optical lines to advance towards the first direction of the ground; the second lens part comprises a second lens incidence surface and a second lens reflection surface so that the optical lines emitted by the optical source reaches the second lens reflection surface through the second lens incidence surface so as to enable the optical lines to advance towards the second direction of the ground.
Description
Technical field
The present invention relates to a kind of optical lens, and particularly a kind of optical lens that is applicable to automobile front lamp is used to produce the car light optical lens of the light type with dead line.
Background technology
In the car light relevant laws and regulations, stipulated that car headlamp does not allow the light greater than particular light intensity beyond special angle above the horizon, therefore formed so-called dead line (cut off line), this is for fear of dazzling the vehicle that travels in the influence of light opposite.
Fig. 1 is a kind of schematic diagram of structure of car headlamp 150.As shown in Figure 1, generally speaking, the catch 102 that is provided with in light source 100 the place aheads of car headlamp 150 stops the light 110 towards the place ahead that light source 100 produces, and light 108 direct projection forward by cambered surface 106 reflections towards the below that light source 100 is produced, to form the light type of tool dead line.Yet this car headlamp 150 has many shortcomings, and catch 102 can block the part light that light source 100 produces, and makes light utilization reduce and the generation waste; In addition, catch 102 can make in the part light reflected back Vehicle lamp structure, causes the temperature of car light itself to improve, and reduces its life-span.
Summary of the invention
The object of the present invention is to provide a kind of optical lens, when it is applied to car headlamp, can produce the light type that meets the dead line relevant regulations, and promote the light source utilization ratio.
The invention provides a kind of optical lens, comprise first lens part and second lens partly.First lens partly comprise the first lens plane of incidence, the first reflection from lens face, and the light that light source is sent arrives the described first reflection from lens face through the described first lens plane of incidence and described light is advanced along the first direction towards ground; Second lens partly comprise the second lens plane of incidence, the second reflection from lens face, and the described light that described light source is sent arrives the described second reflection from lens face through the described second lens plane of incidence and described light is advanced along the second direction parallel with described ground.
[description of drawings]
Fig. 1 is the schematic diagram of the vehicle head lamp of tool dead line in the prior art.
Fig. 2 a-2b is the schematic perspective view of the optical lens of embodiment of the present invention.
Fig. 3 a-3d is respectively front perspective view, rear perspective schematic diagram, side perspective schematic diagram and the top perspective schematic diagram of the optical lens of embodiment of the present invention.
Fig. 4 is this schematic diagram for the section of the optical lens of invention embodiment.
Fig. 5 a-5b is for showing that light is at the travel path of first lens part of the optical lens of embodiment of the present invention and the schematic diagram of radiation direction.
Fig. 6 a-6c is for showing that light is at the travel path of second lens part of the optical lens of embodiment of the present invention and the schematic diagram of radiation direction.
[main element symbol description]
100-light source 102-catch
108,110-light 106-cambered surface
150-car headlamp 200-light source
202-first lens are 204-second lens part partly
The 204a-first subdivision 204b-second subdivision
The 206-first reflection from lens face 208-first lens plane of incidence
The 210-first lens exit facet 212-second lens plane of incidence
The 214-first plane 220-second plane
The 215-first sub-plane of incidence 216-second sub-plane of incidence
The 218-second reflection from lens face 222-second lens exit facet
230a, 230a1,230a2,230b, 230b1,230b2,230c, 230c1,230c2,230c3-light
240-optical coating 242-recess
250-ground 500-optical lens
600-vehicle θ 1, θ 2-angle.
[specific embodiment]
Below in conjunction with accompanying drawing the specific embodiment of the present invention is described, as reference frame of the present invention.In accompanying drawing or specification description, similar or identical part is all used identical symbol.And in each accompanying drawing, the shape of each element or thickness can enlarge, and only simplify indicating herein for simplicity.Each element will be described explanation respectively in each accompanying drawing.It should be noted that the element that does not illustrate among the figure or describe, be the form known to the those skilled in the art in the affiliated technical field.In addition, only for disclosing ad hoc fashion used in the present invention, it is not in order to limit the present invention to specific embodiment.
Fig. 2 a-2b is the schematic perspective view of optical lens 500 specific embodiment of the present invention.Fig. 3 a-3d is respectively front perspective view, rear perspective schematic diagram, side perspective schematic diagram and the top perspective schematic diagram of optical lens 500 embodiments of the present invention.Fig. 2 a-2b, 3a-3d are respectively with the auxiliary direction that indicates of x axle, y axle and z axle.The optical lens 500 that embodiment of the present invention provided, under the situation that does not need baffle plate, the light that light source is penetrated has dead line through the light type that above-mentioned optical lens produces, to meet the vehicle relevant laws and regulations.Described dead line is meant the light that does not allow greater than particular light intensity beyond special angle above the horizon.Shown in Fig. 2 a-2b, the optical lens 500 of present embodiment can be made of first lens part, 202 and second lens part 204, and wherein first lens partly 202 are responsible for the illumination on road surfaces, and the light type in the responsible the place aheads of second lens part, 204 parts.Shown in Fig. 2 a-2b, in the present embodiment, first lens of optical lens 500 part 202 comprises the first lens plane of incidence 208, the first reflection from lens face 206 and the first lens exit facet 210.Described second lens part 204 comprises the second lens plane of incidence 212, the second reflection from lens face 218 and the second lens exit facet 222.The plane of incidence of optical lens, exit facet and reflecting surface are the light going directions that penetrates with respect to light source and defining herein, wherein the plane of incidence be defined as light from then on face inject optical lens, exit facet is defined as light face ejaculation from then on optical lens, and reflecting surface is defined as light in this face generation reflection.In the present embodiment, the first lens plane of incidence 208 is the convex surface with respect to the irradiant optical axis of described light source (center line of light), and the second lens plane of incidence 212 is the convex surface with respect to described optical axis.In the present embodiment, the first lens exit facet 210 and the second lens exit facet 222 are the plane with respect to described optical axis.The first reflection from lens face 206 and the second reflection from lens face 218 are plane or the concave surface with respect to described optical axis.
In the present embodiment, first lens of optical lens 500 are 202 similar semiellipse columns partly, and second lens of optical lens 500 partly 204 can be half gyroscope-like.Shown in Fig. 3 a-3b, first lens part, 202 and second lens partly 204 are connected to each other, so that the second reflection from lens face 218 of first reflection from lens face 206 of first lens of semiellipse column part 202 and half top-shaped second lens part 204 outwardly.First lens partly 202 and second lens part 204 have equal widths d substantially, and the length of second lens part 204 is less than the length of first lens part 202, so that the first lens exit facet 210 of first lens part 202 partly 204 comes out from second lens.The first lens plane of incidence 208 of first lens part 202 and second lens are 204 the second lens plane of incidence, the 212 common recesses (recess 242 as shown in Figure 4) that form partly, providing light source to be positioned over wherein, and make first lens partly 202 the first lens plane of incidence 208 and second lens partly 204 the second lens plane of incidence 212 towards light source.
Below utilize comparatively detailed generalized section that the structure of the optical lens 500 of present embodiment is described.Fig. 4 be the optical lens 500 of present embodiment with the y axle of Fig. 2 a generalized section as tangent line, and show the optical lens 500 of present embodiment and the relative position schematic diagram of ground and light source 200 simultaneously.In the present embodiment, light source 200 is light emitting diode (LED).As shown in Figure 4, when using the optical lens 500 of present embodiment, make first lens part 202 be positioned at partly 204 top of second lens.Described first lens partly 202 and second lens partly 204 are all positive lens, thus can design make first lens partly 202 and second lens partly 204 focus be positioned at same point, described focus is also as light source 200 placements.Described first lens partly 202 the first lens exit facet 210 are positioned opposite to each other with the first lens plane of incidence 208 and be connected with the first reflection from lens face 206 respectively, and the first reflection from lens face 206 can be roughly parallel with ground 250.Wherein the first lens plane of incidence 208 of first lens part 202 is provided with towards light source 200, and an angle theta 1 that forms between the first lens exit facet 210 and the first reflection from lens face 206 is less than 90 °.Second lens part 204 of described optical lens 500 can be made of the first subdivision 204a and the second subdivision 204b that link to each other.Wherein the first subdivision 204a of second lens part 204 comprises first plane 214 and the first sub-plane of incidence 215 that is oppositely arranged, wherein the first sub-plane of incidence 215 is provided with towards light source 200, when the first sub-plane of incidence 215 was convex surface, the first subdivision 204a can be considered convex lens.In addition, the second subdivision 204b of second lens part 204 is positioned at the below of the first subdivision 204a, and the second subdivision 204b uses so that the light that is incident in wherein produces total reflection, thereby can be considered total reflection lens.The second subdivision 204b comprises one the second sub-plane of incidence 216, and second plane 220 that is oppositely arranged and the second reflection from lens face 218, and wherein the second lens plane of incidence 216 is provided with towards light source 200.First lens partly 202 the first lens plane of incidence 208 link to each other with the second lens plane of incidence 212 of second lens part 204, and the first sub-plane of incidence 215 of second lens part 204 links to each other with the second sub-plane of incidence 216.First lens partly 202 the first lens exit facet 210 partly link to each other on 204 first plane 214 with second lens, and an angle theta 2 that forms between the first lens exit facet 210 and the plane 214 is greater than 90 ° and less than 180 °.Second lens partly 204 first plane 214 and second plane 220 are connected with each other, and constitute the second lens exit facet 222 jointly.
Fig. 5 a-5b is for showing that light is at the travel path of first lens part 202 of the optical lens 500 of present embodiment and the schematic diagram of radiation direction.Shown in Fig. 5 a, in the present embodiment, can suitably design the first lens plane of incidence 208 of first lens part 202 of optical lens 500, so that light source 200 is arranged at partly 202 focus place of first lens.Therefore, the light 230a that sends of light source 200 injects first lens through the first lens plane of incidence 208 and partly 202 can form parallel rays 230a1.In addition, first lens partly can cover optical coating 240 on the 202 first reflection from lens faces 206, to increase the ability of the first reflection from lens face, 206 reflection rays.Therefore can make parallel rays 230a1 produce reflection by the first reflection from lens face 206, form emergent ray 230a2 from 210 outgoing of the first lens exit facet at last, and wherein the direction of emergent ray 230a2 (direction of arrow) and ground not parallel (towards ground 250).Fig. 5 b is for showing the schematic diagram of light through the emergent ray direction of first lens part 202 of present embodiment, shown in Fig. 5 b, if when optical lens 500 is used for the headlamp of vehicle 600, light is through first lens of optical lens 500 partly direction (direction of arrow) and the ground of the 202 emergent ray 230a2 that form not parallel (towards ground 250).
Fig. 6 a-6c is for showing that light is at the travel path of second lens part 204 of the optical lens 500 of present embodiment and the schematic diagram of radiation direction.Fig. 6 a is for showing that light is at the travel path of the first subdivision 204a of second lens part 204 of present embodiment and the schematic diagram of radiation direction, in the present embodiment, can suitably design the first sub-plane of incidence 215 of the first subdivision 204a, so that light source 200 is arranged at its focus place.Therefore, the light 230b that sends of light source 200 can form parallel light 230b1 after the first sub-plane of incidence 215 incidents of the first subdivision 204a.At last, parallel light 23,0b1 214 outgoing and form emergent ray 230b2 from the plane.Therefore, the direction (direction of arrow) of the light 230b2 of outgoing is parallel with ground 250.In addition, Fig. 6 b is for showing that light is at the travel path of the second subdivision 204b of second lens part 204 of present embodiment and the schematic diagram of radiation direction.In the present embodiment, the light 230c that light source 200 sends injects the second subdivision 204b from the second sub-plane of incidence 216, can form light 230c1 behind the light 230c incident second subdivision 204b.The second reflection from lens face 218 can make light 230c1 form light 230c2 with ground 250 parallel (the light 230c2 directions of arrow) by the second reflection from lens face 218 produces total reflections via suitable design, 220 outgoing and form emergent ray 230c3 from the plane at last, and wherein the direction (direction of arrow) of the light 230c3 of outgoing is parallel with ground 250.By Fig. 6 a and Fig. 6 b as can be known, the light that light source 200 sends partly can form the light (230b2/230c3) parallel with ground 250 after 204 through second lens.Fig. 6 c is for showing the schematic diagram of light through the emergent ray direction of second lens part 204 of present embodiment.Shown in Fig. 6 c, if when optical lens 500 is used for the vehicle head lamp of vehicle 600, partly the direction (direction of arrow) of the light 230b2/230c3 of 204 outgoing that form can be parallel with ground 250 through second lens of optical lens 500 for light.
In sum, embodiment of the present invention provides optical lens 500, mainly comprises partly 204 formations of first lens part, 202 and second lens, and wherein first lens partly 202 are responsible for the illumination on road surfaces, and the light type in second lens part, 204 partly responsible the place aheads.The optical lens 500 of this embodiment under the situation that does not need the File plate, can make light source have dead line, light utilization height, and the requirement of the rules that can be in conformity with law through the light type that above-mentioned optical lens 500 produces by second lens part 204.And in the application of vehicle light illumination, optical lens 500 can not make the car light heating, and the car light life-span is prolonged.In addition, the optical lens 500 of embodiment of the present invention makes light source can form extra field of illumination on the ground through first lens part 202 by first lens part 202.In the application of vehicle light illumination, above-mentioned extra field of illumination can form the illumination on road surface, the place ahead, makes that driving is safer.
Though the present invention discloses as above with embodiment; right its is not in order to limiting the present invention, anyly has the knack of this skill person, without departing from the spirit and scope of the present invention; can change a little and retouch, so protection scope of the present invention should be as the criterion with claim.
Claims (10)
1.
A kind of optical lens is characterized in that, comprising: one first lens component and one second lens component; Wherein said first lens component comprises the one first lens plane of incidence and one first reflection from lens face, and the light that the described first reflection from lens face sends a light source arrives the described first reflection from lens face through the described first lens plane of incidence and described light is advanced along the first direction towards ground; Described second lens component comprises a plurality of second lens planes of incidence and one second reflection from lens face, and the described light that the described second reflection from lens face sends described light source arrives the described second reflection from lens face through the described second lens plane of incidence and described light is advanced along the second direction parallel with described ground.
2.
Optical lens according to claim 1, wherein said first lens partly are roughly the semiellipse column, and wherein said second lens partly are roughly half gyroscope-like, and the width of described first lens part and described second lens part is about equally.
3.
Optical lens according to claim 1, the wherein said first lens plane of incidence is a convex surface, the described first reflection from lens face is a plane or a concave surface.
4.
Optical lens according to claim 1, the described first reflection from lens face further is coated with an optical coating.
5.
Optical lens according to claim 1, wherein said first lens partly further comprise one first lens exit facet, it is positioned opposite to each other with the described first lens plane of incidence and be connected with the described first reflection from lens face respectively, and one first angle that forms between described first lens exit facet and the described first reflection from lens face is less than 90 °.
6.
According to the lens of the described optics of claim 1, wherein said second lens partly further comprise: one first subdivision, and it comprises and is oppositely arranged the described second sub-plane of incidence and first plane; And one second subdivision, it comprises the second sub-plane of incidence, the described second reflection from lens face and second plane.
7.
Optical lens according to claim 6, the first sub-plane of incidence of described second lens part and the second sub-plane of incidence are connected with each other and constitute the second lens plane of incidence, and link to each other with the first lens plane of incidence, described first plane and described second plane are connected with each other and constitute the second lens exit facet.
8.
Optical lens according to claim 6, wherein these second lens partly are positive lens.
9.
Optical lens according to claim 7, the wherein said first lens exit facet links to each other with described first plane, and second angle that forms between described first lens exit facet and described first plane is greater than 90 ° and less than 180 °.
10. optical lens according to claim 1, wherein said light produces total reflection in the second reflection from lens face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010527658XA CN102003677A (en) | 2010-11-02 | 2010-11-02 | Optical lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010527658XA CN102003677A (en) | 2010-11-02 | 2010-11-02 | Optical lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102003677A true CN102003677A (en) | 2011-04-06 |
Family
ID=43811257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010527658XA Pending CN102003677A (en) | 2010-11-02 | 2010-11-02 | Optical lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102003677A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB415617A (en) * | 1932-12-24 | 1934-08-30 | Bosch Robert | Improvements in or relating to vehicle lamps |
| GB702106A (en) * | 1951-03-30 | 1954-01-06 | Erwin Kasemann | Improvements in motor vehicle lighting, with use of polarized light |
| CN1311566C (en) * | 1999-11-30 | 2007-04-18 | 欧姆龙株式会社 | Optical device and apparatus comprising said optical device |
| CN101105272A (en) * | 2007-02-12 | 2008-01-16 | 吴娟 | LED road lamp and its lens |
| CN100494771C (en) * | 2004-09-13 | 2009-06-03 | 斯坦雷电气株式会社 | Vehicle Lamps |
-
2010
- 2010-11-02 CN CN201010527658XA patent/CN102003677A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB415617A (en) * | 1932-12-24 | 1934-08-30 | Bosch Robert | Improvements in or relating to vehicle lamps |
| GB702106A (en) * | 1951-03-30 | 1954-01-06 | Erwin Kasemann | Improvements in motor vehicle lighting, with use of polarized light |
| CN1311566C (en) * | 1999-11-30 | 2007-04-18 | 欧姆龙株式会社 | Optical device and apparatus comprising said optical device |
| CN100494771C (en) * | 2004-09-13 | 2009-06-03 | 斯坦雷电气株式会社 | Vehicle Lamps |
| CN101105272A (en) * | 2007-02-12 | 2008-01-16 | 吴娟 | LED road lamp and its lens |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| AD01 | Patent right deemed abandoned |
Effective date of abandoning: 20110406 |
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| C20 | Patent right or utility model deemed to be abandoned or is abandoned |