CN201916850U - Optical design structure of underground traffic signal lamp - Google Patents
Optical design structure of underground traffic signal lamp Download PDFInfo
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- CN201916850U CN201916850U CN2010206767989U CN201020676798U CN201916850U CN 201916850 U CN201916850 U CN 201916850U CN 2010206767989 U CN2010206767989 U CN 2010206767989U CN 201020676798 U CN201020676798 U CN 201020676798U CN 201916850 U CN201916850 U CN 201916850U
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- light source
- wedge
- convex lens
- lens
- optical design
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Abstract
The utility model discloses an optical design structure of an underground traffic signal lamp, which comprises a luminaire casing, wherein a light source is arranged in the luminaire casing; a convex lens is arranged at the front end of the light source; the light source is arranged on the focus of the convex lens; the included angle between the main optical axis of the convex lens and the horizontal plane is 10 degrees; a mirror is arranged at the front end of the convex lens; a wedge-shaped lens is arranged on the mirror; the wedge-shaped lens is provided with a plurality of wedge-shaped angles which are distributed within the range of (0 degree-0.92 degree). According to the underground traffic signal lamp, an underground light source is subjected to light distribution, that is, firstly lights from the light source is changed into parallel lights having a certain angle with the horizontal plane, and secondly lights are reflected through the wedge-shaped lens, therefore light rays can be transmitted to a driver efficiently.
Description
Technical field
The utility model relates to the traffic engineering field, particularly a kind of buried traffic lights.
Background technology
Buried traffic lights are embedded on the pavement of road, show situation in order to the signal of informing vehicle driver road ahead crossing road traffic signal lamp in advance.But in actual use, because the light-emitting area of buried traffic lights is parallel to the ground, its light that sends is perpendicular to the ground, optical signal effectively can not be passed to vehicle driver, the driver has only to very near distance just can notice the signal of buried signal lamp, make the driver lose the opportunity of driving processing in advance like this, might cause traffic safety hidden danger.
The utility model content
The purpose of this utility model provides a kind of optical design configurations of buried traffic lights, and the optical signal that underground lamp can be sent effectively passes to the driver, guarantees the safe and orderly of road traffic.
The technical solution of the utility model: a kind of optical design configurations of buried traffic lights, comprise lamp outer casing, be provided with light source in the described lamp outer casing, the light source front end is provided with convex lens, light source is arranged on the focus of convex lens, and the primary optical axis of convex lens and the angle of horizontal plane are
=10 °, the convex lens front end is provided with speculum, is provided with wedge-shaped lens above the speculum, and wedge-shaped lens has a plurality of key grooves
, a plurality of key grooves
Be evenly distributed on 0≤
In≤0.92 ° of scope.
As preferably, the diameter of described wedge-shaped lens is 150mm, and key groove has 100.
As preferably, described light source is a led light source.
Buried traffic lights of the present utility model carry out luminous intensity distribution to buried light source to be handled, at first the light of light source is become directional light horizontal by certain angle, by wedge-shaped lens light refraction is being gone out then, the light that makes away can effectively pass to the driver.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
The schematic diagram that Fig. 2 passes at wedge-shaped lens for light;
Fig. 3-1 is that visual angle between traffic lights light and the vehicle driver concerns schematic diagram to 3-3;
Fig. 4 is the structural representation of wedge-shaped lens.
The specific embodiment
As Fig. 1, a kind of optical design configurations of buried traffic lights comprises lamp outer casing 1, be provided with light source 2 in the described lamp outer casing 1, light source 2 front ends are provided with convex lens 3, and light source 2 is arranged on the focus of convex lens 3, and the primary optical axis of convex lens 3 and the angle of horizontal plane are
=10 °, convex lens 3 front ends are provided with speculum 4, are provided with wedge-shaped lens 5 above the speculum 4, and wedge-shaped lens 5 is light source 2, and convex lens 3 also have under speculum 4 is sealed in, and wedge-shaped lens 5 has a plurality of key grooves
, a plurality of key grooves
Be evenly distributed on 0≤
In≤0.92 ° of scope.
Underground lamp of the present utility model at first led light source is arranged on the focus of convex lens 3, its light that sends becomes the directional light that is parallel to primary optical axis through convex lens 3, because the angle of primary optical axis and horizontal plane is 10 °, so directional light also becomes 10 ° of angles with horizontal plane, then through speculum 4 reflections, light is mapped on the wedge-shaped lens 5 with the direction that becomes 10 ° of angles with horizontal plane
As shown in Figure 2, the key groove of wedge-shaped lens 5
Form by two faces, horizontal exit facet 6 and oblique incidence face 7, light enters into wedge-shaped lens through oblique incidence face 7, and its incidence angle on oblique incidence face 7 is a1, and the angle of emergence is b1, and the incidence angle on horizontal exit facet 6 is a2, the angle of emergence is b2,
We can obtain sin(a1)/sin(b1)=n,
sin（b2）/?sin（a2）=n，
a1=90°-
-
，
a2=b1+
；
Wherein n is a refractive index, and we select refractive index for use is 1.49 lens,
=10 °,
Because 0≤
≤ 0.92 °, can get through calculating, 79.08 °≤a1≤80 °, 41.22276 °≤b1≤41.37197 °, 41.37197 °≤a2≤42.14276 °, 80 °≤b2≤88.7461 °.
The emission angle of the light that comes out after reflecting by wedge-shaped lens at last
=90 °-b2,
So 1.2539 °≤
≤ 10 °.
As Fig. 3-1 to 3-3, motor vehicle in the process of moving, the distance of itself and buried traffic lights progressively shortens, the visual angle of buried traffic lights optical signal and motor vehicle driving eye then progressively increases.The about 1.5m in eye distance ground of vehicle driver, when the buried traffic lights 100m of vehicle distances, vehicle driver sees that the viewing angle of the optical signal that buried traffic lights send is about 1 °; When the buried traffic lights 50m of vehicle distances, vehicle driver sees that the viewing angle of the optical signal that buried traffic lights send is about 1.7 °; When the buried traffic lights 10m of vehicle distances, vehicle driver sees that the viewing angle of the optical signal that buried traffic lights send is about 8.5 °, and in front of the buried traffic lights of vehicle driver arrival point, its whole viewing angle is no more than 10 °.
So carrying out rational luminous intensity distribution to light source, handles the underground lamp of the utility model optical design, on the exiting surface of light, wedge-shaped lens is set, wedge-shaped lens is provided with abundant key groove, the even angle of key groove be distributed in 0 to 0.92 °, the distribution of light that last wedge-shaped lens emits is becoming 1 ° in the scope at 10 ° of angles with horizontal plane, thereby make the driver distance beginning about 100m just can very effectively receive traffic signals, carry out the processing that vehicle travels in advance, guaranteed the safe and orderly of traffic circulation.
As shown in Figure 4, the vertical length of speculum is 30mm in the time of the utility model design, and the diameter of wedge-shaped lens 5 is 150mm, and key groove has 100, and these 100 key grooves are respectively
=
0.92 °/99,
It is 0 to 99 integer.
Claims (3)
1. the optical design configurations of buried traffic lights, comprise lamp outer casing (1), it is characterized in that, be provided with light source (2) in the described lamp outer casing (1), light source (2) front end is provided with convex lens (3), light source (2) is arranged on the focus of convex lens (3), and the primary optical axis of convex lens (3) and the angle of horizontal plane are
=10 °, convex lens (3) front end is provided with speculum (4), is provided with wedge-shaped lens (5) above the speculum (4), and wedge-shaped lens (5) has a plurality of key grooves
, a plurality of key grooves
Be evenly distributed on 0≤
In≤0.92 ° of scope.
2. the optical design configurations of a kind of buried traffic lights according to claim 1 is characterized in that, the diameter of described wedge-shaped lens (5) is 150mm, and key groove has 100.
3. the optical design configurations of a kind of buried traffic lights according to claim 1 and 2 is characterized in that, described light source (2) is a led light source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206767989U CN201916850U (en) | 2010-12-23 | 2010-12-23 | Optical design structure of underground traffic signal lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206767989U CN201916850U (en) | 2010-12-23 | 2010-12-23 | Optical design structure of underground traffic signal lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201916850U true CN201916850U (en) | 2011-08-03 |
Family
ID=44416645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206767989U Expired - Fee Related CN201916850U (en) | 2010-12-23 | 2010-12-23 | Optical design structure of underground traffic signal lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201916850U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102012002A (en) * | 2010-12-23 | 2011-04-13 | 公安部交通管理科学研究所 | Optical design structure of buried traffic signal lamp |
| WO2013023900A1 (en) * | 2011-08-18 | 2013-02-21 | Siemens Aktiengesellschaft | Illuminated sign system |
| CN109410612A (en) * | 2018-11-06 | 2019-03-01 | 郑佳佳 | A kind of crossing signal lamp |
-
2010
- 2010-12-23 CN CN2010206767989U patent/CN201916850U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102012002A (en) * | 2010-12-23 | 2011-04-13 | 公安部交通管理科学研究所 | Optical design structure of buried traffic signal lamp |
| WO2013023900A1 (en) * | 2011-08-18 | 2013-02-21 | Siemens Aktiengesellschaft | Illuminated sign system |
| CN109410612A (en) * | 2018-11-06 | 2019-03-01 | 郑佳佳 | A kind of crossing signal lamp |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110803 Termination date: 20121223 |