CN209130777U - Realize that large area uniformly lights the optical system of effect - Google Patents
Realize that large area uniformly lights the optical system of effect Download PDFInfo
- Publication number
- CN209130777U CN209130777U CN201822209338.4U CN201822209338U CN209130777U CN 209130777 U CN209130777 U CN 209130777U CN 201822209338 U CN201822209338 U CN 201822209338U CN 209130777 U CN209130777 U CN 209130777U
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- Prior art keywords
- light
- light source
- large area
- effect
- light guide
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Abstract
The purpose of the utility model is to provide a kind of optical systems realized large area and uniformly light effect, a beam collimation device is at least arranged in light guide incidence end, light source is arranged in the focal position of each beam collimation device, may be implemented large area, uniformly, high brightness light effect, compared to conventional light guides, there is higher efficiency, exports the light in light conducting structure to required direction by optical patterns, complete the light distribution requirements of different function lamps and lanterns.There is a certain distance between each light source, can excessively be concentrated to avoid distribution of light sources and cause heat build-up；Reduce the difficulty of optical system heat dissipation design.
Description
Technical field
The utility model relates to car lighting field more particularly to a kind of optical systems realized large area and uniformly light effect
System.
Background technique
With the development that electronic technology is maked rapid progress, on a large scale using LED as ideal light source in car headlamp
Apply on vehicle.Meanwhile with now aesthetic development, client is not only satisfied with conventional light guide stick conduct more and more
The implementation of signal lamp.Large area uniformly lights effect and has become one of the fields such as vehicle signal advance
Direction.But existing light guide techniques cannot achieve increasingly since the limitation of Shooting Technique, the diameter of light guide are usually 8 ~ 10mm
The effect that more large area is lighted.And the light source angle of divergence is larger, and light is very easy to escape from light guide.
In the utility model in the technology of conventional light guides, several collimating structures are added in its light source inlet, are allowed to
Can be used among the design of daytime running lamps, realize large area, uniformly, high brightness light effect.
Utility model content
To solve the above problems, the utility model provides a kind of optical system realized large area and uniformly light effect, light
It leads incidence end and one beam collimation device is at least set, the focal position of each beam collimation device is arranged light source, may be implemented
Large area, uniformly, high brightness light effect, compared to conventional light guides, have higher efficiency, made by optical patterns in light
Light in conducting structure is exported to required direction, completes the light distribution requirements of different function lamps and lanterns.
The purpose of the utility model is to provide a kind of optical system realized large area and uniformly light effect, including light source and
There is beam exit structure at light guide, the light guide back side, and the incidence end of light guide is provided with beam collimation device, and light source is set to light beam
The focal position of collimator apparatus is incident in the beam collimation device of light guide, inside light guide by the light that light source is launched
It is totally reflected, is projected after being incident to beam exit structure；The number of the light source and beam collimation device is at least one,
And it corresponds each other.
Further improvement lies in that: the light source includes at least one LED.
Further improvement lies in that: the light source is red light source to realize taillight position lamp or taillight Brake lamp, or
The light source of person's white realizes that perhaps headlight position lamp or car-backing function or the light source of yellow turn to realize daytime running lamps
Lamp.
Further improvement lies in that: the material of the light guide is polymethyl methacrylate or polycarbonate.
Further improvement lies in that: beam exit structure is optical patterns structure.
Further improvement lies in that: the quantity of the light source and the quantity of the beam collimation device can be according to lighting area
Requirement increased or decrease quantity.
Further improvement lies in that: the beam collimation device of different number is used in light guide input terminal, any width may be implemented
Degree lights effect.
The utility model has the beneficial effects that a beam collimation device is at least arranged in the utility model light guide incidence end, often
Light source is arranged in the focal position of a beam collimation device, may be implemented large area, uniformly, high brightness light effect, compared to
Conventional light guides have higher efficiency, export the light in light conducting structure to required direction by optical patterns, complete
At the light distribution requirements of different function lamps and lanterns.There is a certain distance between each light source, can excessively be concentrated to avoid distribution of light sources
Cause heat build-up；Reduce the difficulty of optical system heat dissipation design.
Detailed description of the invention
Fig. 1 is Tthe utility model system structure chart.
Fig. 2 is the enlarged structure schematic diagram of the incidence end of the utility model in region I in Fig. 1.
Fig. 3 is transmission locus schematic diagram of the light in beam collimation device 2.
Fig. 4 is the optical patterns structure chart of beam exit structure.
Fig. 5 is that effect diagram is lighted in simulation.
Fig. 6 is that beam exit structure is emitted schematic diagram.
Wherein: 1- light source, 2- beam collimation device, 3- light guide, 4- beam exit structure.
Specific embodiment
In order to deepen the understanding to the utility model, below in conjunction with embodiment, the utility model is described in further detail,
The embodiment is only used for explaining the utility model, does not constitute the restriction to scope of protection of the utility model.
As shown in figures 1 to 6, the present embodiment provides a kind of optical systems realized large area and uniformly light effect, including light source
1 and light guide 3,3 back side of light guide have beam exit structure 4, the incidence end of light guide 3 is provided with beam collimation device 2, light source 1
It is set to the focal position of beam collimation device 2, the beam collimation device 2 of light guide 3 is incident on by the light that light source 1 is launched
In, by being totally reflected inside light guide 3, projected after being incident to beam exit structure 4；The light source 1 and beam collimation device 2
Number be three, and correspond each other.The light source 1 includes a LED.The light source 1 is that red light source comes
Realize taillight position lamp perhaps taillight Brake lamp or white light source come realize daytime running lamps or headlight position lamp or fall
The light source of vehicle function or yellow realizes turn signal.The material of the light guide 3 is polycarbonate.Beam exit structure 4 is light
Learn pattern structure.The quantity of the light source and the quantity of the beam collimation device can be increased according to the requirement for lighting area or
Reduce quantity.The beam collimation device of different number is used in light guide input terminal, any width may be implemented lights effect.
Since the LED of light source 1 has 120 ° of the outgoing angle of divergence, in order to which that improves whole light guide lights uniformity,
Consider the use of beam collimation device 2 to be specially the device for collecting light beam, acts on the incidence end of light guide 3, light source 1 is placed in light beam
The focal position of collimator apparatus 2, it can play to pool the LED emergent light with 120 ° of angles of divergence a branch of collimating substantially
It is coupled into light guide after directional light, improves the light utilization efficiency of system.
If collimator apparatus is not added in the incidence end of light guide 3, after light beam is incident to light guide 3 from light source 1, due to the angle of divergence
It is larger, it is very easy to escape from light guide 3, by designing several beam collimation devices 2 in 3 incidence end of light guide, can mention significantly
High beam realizes the effect that long range, high brightness, large area are uniformly lighted in the coupling efficiency of incidence end.
Light from light source 1 by light guide 3 beam collimation device 2 when light transmission locus it is as shown in Figure 3.
The light being emitted from light source 1 after beam collimation device 2, lead in 3 by the light beam coupling entering light for becoming substantially parallel.
Light guide 3 is transparent material with a high refractive index composition, and light can be by being repeatedly all-trans in medium with a high refractive index
It penetrates, will not be escaped along the moulding onwards transmission of light guide 3.
It, can be controllably by the light in light guide 3 by the beam exit structure 4 needed for the addition of the back side of light guide 3
Direction needed for exposing to optical system.
The structure lights effect as shown in figure 5, for conventional light guides 3, may be implemented within the scope of wider width
The effect uniformly lighted.And it can be by increasing or decreasing the LED quantity of arrival end light source 1 and the standard of beam collimation device 2
The quantity of straight device is to realize that the uniform of any width lights effect.
A beam collimation device 2, the focal position setting of each beam collimation device 2 is at least arranged in 3 incidence end of light guide
Light source 1, may be implemented large area, uniformly, high brightness light effect, compared to conventional light guides, have higher efficiency, pass through
The optical patterns of beam exit structure 4 export the light in light conducting structure to required direction, complete different function lamp
The light distribution requirements of tool.There is a certain distance between each light source, can excessively be concentrated to avoid distribution of light sources and cause heat build-up；
Reduce the difficulty of optical system heat dissipation design.
Claims (4)
1. a kind of optical system realized large area and uniformly light effect, including light source (1) and light guide (3), it is characterised in that: institute
Stating light guide (3) back side has beam exit structure (4), and the incidence end of light guide (3) is provided with beam collimation device (2), and light source (1) is set
It is placed in the focal position of beam collimation device (2), is filled by the beam collimation that the light that light source (1) is launched is incident on light guide (3)
It sets in (2), by being totally reflected inside light guide (3), is incident to beam exit structure (4) and projects afterwards；The light source (1) and light
The number of beam collimator apparatus (2) is at least one, and corresponds each other.
2. realizing that large area uniformly lights the optical system of effect as described in claim 1, it is characterised in that: the light source (1)
It include at least one LED.
3. realizing that large area uniformly lights the optical system of effect as described in claim 1, it is characterised in that: the light source (1)
It is the light source of red light source or white or the light source of yellow.
4. realizing that large area uniformly lights the optical system of effect as described in claim 1, it is characterised in that: the light guide (3)
Material be polymethyl methacrylate or polycarbonate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822209338.4U CN209130777U (en) | 2018-12-27 | 2018-12-27 | Realize that large area uniformly lights the optical system of effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822209338.4U CN209130777U (en) | 2018-12-27 | 2018-12-27 | Realize that large area uniformly lights the optical system of effect |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209130777U true CN209130777U (en) | 2019-07-19 |
Family
ID=67249460
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822209338.4U Active CN209130777U (en) | 2018-12-27 | 2018-12-27 | Realize that large area uniformly lights the optical system of effect |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209130777U (en) |
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2018
- 2018-12-27 CN CN201822209338.4U patent/CN209130777U/en active Active
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