CN110778985A - Optical system for increasing irradiation width - Google Patents
Optical system for increasing irradiation width Download PDFInfo
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- CN110778985A CN110778985A CN201911226335.4A CN201911226335A CN110778985A CN 110778985 A CN110778985 A CN 110778985A CN 201911226335 A CN201911226335 A CN 201911226335A CN 110778985 A CN110778985 A CN 110778985A
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- light source
- led light
- collimation
- optical system
- light
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
- F21S43/40—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the combination of reflectors and refractors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
- F21S43/10—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source
- F21S43/13—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source characterised by the type of light source
- F21S43/14—Light emitting diodes [LED]
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
- F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
- F21S43/235—Light guides
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
- F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
- F21S43/235—Light guides
- F21S43/236—Light guides characterised by the shape of the light guide
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
- F21S43/30—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by reflectors
- F21S43/31—Optical layout thereof
- F21S43/315—Optical layout thereof using total internal reflection
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2103/00—Exterior vehicle lighting devices for signalling purposes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2107/00—Use or application of lighting devices on or in particular types of vehicles
- F21W2107/10—Use or application of lighting devices on or in particular types of vehicles for land vehicles
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Optics & Photonics (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Planar Illumination Modules (AREA)
Abstract
The invention provides an optical system for increasing irradiation width, which comprises a light source and a thick-wall light guide, wherein the light source comprises a first LED light source and a second LED light source, the thick-wall light guide consists of a first collimation structure, a second collimation structure, light distribution patterns and a fixing structure, the LED light sources are correspondingly positioned at the focuses of the second collimation structure, the second collimation structure lightens the lower layer of the whole optical system, the LED light sources are correspondingly positioned at the focuses of the first collimation structure, the collimation structure lightens the upper layer of the whole optical system, the light distribution patterns are arranged at the light outlet ends of the first collimation structure and the second collimation structure, the fixing structure is arranged beside the light distribution patterns, and the thick-wall light guide is integrally matched and installed on the whole lamp through the fixing structure. By utilizing the self structural characteristics and the thickness advantages of various collimation structures, the uniformity of lighting can be ensured, and a wider lighting area can be realized.
Description
Technical Field
The invention relates to the field of automobile signal lamps, in particular to an optical system for increasing irradiation width.
Background
The automobile industry is vigorously developed, the shape of the automobile is in pace with the times, the requirement of consumers on the shape of the whole automobile is constantly changed, the automobile lamp is used as a part of the shape of the whole automobile, and an automobile signal lamp such as a daytime running lamp or a position lamp is very important for the whole shape of the automobile. At present, the width of a headlamp signal lamp of a plurality of automobile lamps which can be lightened is expected to be larger, dynamic lightening is realized, and uniformity is guaranteed. Can realize dynamic lighting, often realize through the scheme of thick wall light guide, then through this kind of optical structure of thick wall light guide, the thickness that general thick wall light guide was lighted is about 6mm ~8 mm. If a thicker illumination effect is achieved, either the concentrator structure is made large, illuminating the thicker region, or two layers of direct-lit concentrators are made, then uniformity is sacrificed. Or in order to realize better uniformity, the condenser is made into two layers, but the general condenser in the current market is made into an upper layer and a lower layer, and the structures of the condenser of the upper layer and the condenser of the lower layer are consistent, so that a PCB is required to be respectively placed on the upper layer and the lower layer, and the economic benefit is not good although the uniformity is ensured.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide an optical system for increasing the irradiation width, wherein a thick-wall light guide structure is formed by laminating and combining a plurality of collimation structure structures, a light source is placed at the focus of the light inlet end of each collimation structure of the thick-wall light guide structure, the lighting width is realized through two layers of collimation, and the uniformity is ensured through different collimation structure forms.
The invention provides an optical system for increasing irradiation width, which comprises a light source and a thick-wall light guide, wherein the light source comprises a first LED light source and a second LED light source, the thick-wall light guide consists of a first collimation structure, a second collimation structure, light distribution patterns and a fixed structure, the LED light sources are correspondingly positioned at the focuses of the second collimation structure, the second collimation structure lightens the lower layer of the whole optical system, the LED light sources are correspondingly positioned at the focuses of the first collimation structure, the collimation structure lightens the upper layer of the whole optical system, the light distribution patterns are arranged at the light outlet ends of the first collimation structure and the second collimation structure, the fixed structure is arranged beside the light distribution patterns, the thick-wall light guide is integrally matched and arranged on a whole lamp through the fixed structure, the second LED light source at the light inlet end of the first collimation structure is lightened, light passes through the light distribution patterns on the front surface after passing through the first collimation structure, and the LED light source I at the light inlet end of the second collimating structure is lightened, and light rays are emitted through the light distribution patterns on the front surface after passing through the second collimating structure.
The further improvement lies in that: the LED light source I and the LED light source II are arranged on a PCB.
The further improvement lies in that: the thick-wall light guide structure comprises at least two light sources, and when the thick-wall light guide structure comprises two LED light sources, the two LED light sources are out of focus, or one LED light source is positioned at a focus and the other LED light source is out of focus; multifunctional lighting is realized.
The further improvement lies in that: the thick-wall light guide is made of polymethyl methacrylate or polycarbonate.
The further improvement lies in that: the light source adopts yellow or red or white or adopts a colorful LED light source to realize the function of the welcome lamp, and relevant selection and design are required according to the laws and regulations.
The further improvement lies in that: the number of layers of the collimating structure is not limited to 2.
The number of the light sources of the thick-wall light guide structure is at least 2, the thick-wall light guide is composed of two layers of collimation structures, and each layer of collimation structure is provided with at least one LED. Can satisfy specific actual demand according to the actual molding condition, array thick wall light guide structure.
The number of the LEDs at the light inlet end of the collimating structure can be one; the number of the LED light sources can be two, the two LED light sources can be defocused, one LED light source can be positioned at a focus, and the other LED light source is defocused; multifunctional lighting is realized.
The LED at the light inlet end of the first layer of collimating structure is lightened, light rays are emitted through the patterns on the front surface after passing through the first layer of collimating structure, the LED at the light inlet end of the second layer of collimating structure is lightened, and the light rays are emitted through the patterns on the front surface after passing through the second layer of collimating structure. The two collimation structures have the same optical purpose, and are used for collimating the light emitted by the LED, but the realization modes are different, namely the first layer collimation structure and the second layer collimation structure adopt different types of collimation structures, the characteristics of different modeling structures of the two collimation structures are utilized, through the effective matching and combination of the first layer collimation structure and the second layer collimation structure, the lighting uniformity of the light emitted by the LED light sources at the two collimation structures reaching the light distribution patterns through the first layer collimation structure and the second layer collimation structure is respectively consistent, and the characteristics that the different types of the first layer collimation structure and the second layer collimation structure and the distances reaching the light distribution patterns mutually to realize the same lighting uniformity can be different are realized, so that the invention can avoid the problem that the common condenser in the market at present is made into an upper layer and a lower layer as described in the background technology, and the condenser structures of the upper layer and the lower layer are consistent, the invention can ensure that the LED light sources of two collimation structures can be arranged on the same PCB by arranging two light-gathering structures in the same direction. Therefore, the whole large-width lighting is realized through the lamination matching of the two layers of collimation structures. The number of layers of the collimating structure is not limited to 2.
The shape and the system of the collimation structure are various, and can be changed according to the matching requirement of actual projects, so that the uniformity of the whole optical system is ensured, and the collimation structure is arranged on the same PCB, so that the collimation structure has better economic benefit.
The thick-wall light guide light source adopts a light source of a single color. The thick-walled light guide light source system may include LED light sources of multiple colors, the optical system of which may simultaneously implement multiple signal light functions. For example, a yellow LED light source and a white LED light source are added to the same light source area to realize two functions of steering and daytime running light, and by controlling the current, white can simultaneously realize a position light and a daytime running light. According to actual needs, for example, white LED light sources are added in a light source area of the whole optical system, yellow LED light sources are added in a part of common areas, when all the white LED light sources are turned on, the whole optical system is turned on, the daytime running lamp function is achieved, and the white LED light sources can achieve position lamps at the same time by controlling the current. And the yellow LED light source is lightened, and only part of the condenser of the optical system is lightened by the yellow LED light source, so that the function of the steering lamp is realized.
The invention has the beneficial effects that: through using the range upon range of combination of multiple collimation structure, utilize multiple collimation structure all can to carry out the characteristics of collimation, only use through the collocation of different collimation structures, utilize the structural feature and the thickness advantage of various collimation structure self, can guarantee the homogeneity of lighting, can realize the illumination region of broad again, use through the collocation of different collimation structures and realized that whole optical system's is evenly lighted promptly, guarantee again that all LEDs are on same PCB board, better economic benefits has.
Drawings
Fig. 1 is a schematic top view of the present invention.
Fig. 2 is a schematic axial view of the present invention.
Fig. 3 is a schematic front view of the present invention.
Fig. 4 is a light path diagram of the present invention.
Fig. 5 is a side view schematic of the present invention.
Wherein: the LED light source comprises a first 1-LED light source, a second 2-LED light source, a first 3-collimation structure, a second 4-collimation structure, a light distribution pattern 5, a fixing structure 6, a thick-wall light guide 7 and a PCB 8.
Detailed Description
In order to further understand the present invention, the following detailed description will be made with reference to the following examples, which are only used for explaining the present invention and are not to be construed as limiting the scope of the present invention.
As shown in fig. 1-5, this embodiment provides an optical system for increasing an irradiation width, which includes a light source and a thick-wall light guide 7, where the light source includes a first LED light source 1 and a second LED light source 2, the thick-wall light guide is composed of a first collimating structure 3, a second collimating structure 4, a light distribution pattern 5 and a fixing structure 6, the first LED light source 1 is correspondingly located at a focus of the second collimating structure 4, the second collimating structure 4 illuminates a lower layer of the entire optical system, the second LED light source 2 is correspondingly located at a focus of the first collimating structure 3, the first collimating structure 3 illuminates an upper layer of the entire optical system, the light distribution pattern 5 is disposed at light emitting ends of the first collimating structure 3 and the second collimating structure 4, the fixing structure 6 is disposed beside the light distribution pattern 5, the thick-wall light guide is integrally fitted and mounted on the entire lamp through the fixing structure 6, the second LED light source 2 at a light emitting end of the first collimating structure 3 illuminates, the light rays are emitted through the light distribution patterns 5 on the front surface after passing through the first collimating structure 3, the LED light source 1 at the light inlet end of the second collimating structure 4 is lightened, and the light rays are emitted through the light distribution patterns 5 on the front surface after passing through the second collimating structure 4. The LED light source I1 and the LED light source II 2 are arranged on a PCB 8.
The first LED light source 1 and the second LED light source 2 in this embodiment are both white and are uniform in number of 1. The LED light source I1 is correspondingly located at the focus of the collimation structure II 4, the collimation structure II 4 at which the LED light source I is located lightens the lower layer of the whole optical system, the LED light source II 2 is correspondingly located at the focus of the collimation structure I3, and the collimation structure I3 at which the LED light source I is located lightens the upper layer of the whole optical system.
As shown in fig. 4, light emitted by the LED light source i 1 is collimated and converged by the collimating structure ii 4, and then passes through the light distribution pattern 5 to be emitted. Light rays emitted by the LED light source II 2 are collimated and converged by the collimating structure I3 and then are emitted after passing through the light distribution patterns 5. The two collimation structures have the same optical purpose, and are used for collimating light emitted by the LED, but the realization modes are different, namely the first layer collimation structure and the second layer collimation structure adopt different types of collimation structures, the lighting uniformity of the light emitted by the LED light source at the two collimation structures reaching the light distribution patterns through the first layer collimation structure and the second layer collimation structure is enabled to be consistent by utilizing the characteristic that the modeling structures of the two collimation structures are different, and the different types of the first layer collimation structure and the second layer collimation structure and the distance of the light distribution patterns reaching the same lighting uniformity mutually can be different, so that the LED light sources of the two collimation structures can be ensured to be arranged on the same PCB board in the same direction by enabling the two light condensation structures to be arranged in the same direction. Therefore, the whole large-width lighting is realized through the lamination matching of the two layers of collimation structures. The number of layers of the collimating structure is not limited to 2. The two layers of collimation structures respectively collimate the light from respective light sources, so that the uniformity is ensured, and the increase of the lighting width is realized. The LED light source I1 and the LED light source II 2 are ensured to be positioned on the same PCB 8.
The present embodiment further includes a fixing structure 6, the fixing structure 6 is located at a position, close to the light distribution pattern 5, of the thick-wall light guide 7, and the fixing structure 6 is vertically arranged in the present embodiment, so as to integrally fit and mount the thick-wall light guide on the whole lamp.
As shown in fig. 1, the first collimating structure 3 lights the upper portion of the light distribution pattern 5, and the second collimating structure 4 lights the lower portion of the light distribution pattern 5, and the whole optical system is a light guide structure which realizes optical characteristics together with the light distribution pattern 5 in front and the auxiliary fixing structure 6 after the first collimating structure 3 and the second collimating structure 4 are stacked.
As shown in fig. 1, the LED light source i 1 and the LED light source ii 2 are located on the same PCB 8, and the LED light source i 1 and the LED light source ii 2 are far away from each other, which is more beneficial to heat dissipation. This has a better economic benefit.
After being laminated, the first collimating structure 3 and the second collimating structure 4 are matched with the light distribution pattern 5 in front and the fixing structure 6 to jointly realize that the light guide 7 with thick wall of the optical system is made of polycarbonate.
Claims (5)
1. An optical system for increasing the irradiation width comprises a light source and a thick-wall light guide (7), wherein the light source comprises a first LED light source (1) and a second LED light source (2), and the thick-wall light guide consists of a first collimation structure (3), a second collimation structure (4), a light distribution pattern (5) and a fixing structure (6), and is characterized in that: the LED light source I (1) is correspondingly positioned at the focus of the collimation structure II (4), the collimation structure II (4) at which the LED light source II (2) is positioned correspondingly lightens the lower layer of the whole optical system, the collimation structure I (3) at which the LED light source II (2) is positioned correspondingly lightens the upper layer of the whole optical system, the light distribution patterns (5) are arranged at the light outlet ends of the collimation structure I (3) and the collimation structure II (4), the fixing structure (6) is arranged beside the light distribution patterns (5), the thick-wall light guide is integrally and cooperatively arranged on the whole lamp through the fixing structure (6), the LED light source II (2) at the light inlet end of the collimation structure I (3) is lightened, light is emitted through the light distribution patterns (5) on the front surface after passing through the collimation structure I (3), and the LED light source I (1) at the light inlet end of the collimation structure II (4) is lightened, and the light rays are emitted through the light distribution patterns (5) on the front surface after passing through the second collimating structure (4).
2. An optical system for increasing the illumination width as set forth in claim 1, wherein: the LED light source I (1) and the LED light source II (2) are arranged on a PCB (8).
3. An optical system for increasing the illumination width as set forth in claim 1, wherein: the number of the light sources of the thick-wall light guide structure is at least 2, when the number of the light sources is two, the two LED light sources are out of focus, or one LED light source is positioned at a focus and the other LED light source is out of focus; multifunctional lighting is realized.
4. An optical system for increasing the illumination width as set forth in claim 1, wherein: the thick-wall light guide is made of polymethyl methacrylate or polycarbonate.
5. An optical system for increasing the illumination width as set forth in claim 1, wherein: the light source adopts yellow or red or white or adopts a colorful LED light source to realize the function of a welcome lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911226335.4A CN110778985A (en) | 2019-12-04 | 2019-12-04 | Optical system for increasing irradiation width |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911226335.4A CN110778985A (en) | 2019-12-04 | 2019-12-04 | Optical system for increasing irradiation width |
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| Publication Number | Publication Date |
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| CN110778985A true CN110778985A (en) | 2020-02-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911226335.4A Pending CN110778985A (en) | 2019-12-04 | 2019-12-04 | Optical system for increasing irradiation width |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111536487A (en) * | 2020-04-22 | 2020-08-14 | 东风汽车集团有限公司 | Light distribution device of automobile signal lamp |
-
2019
- 2019-12-04 CN CN201911226335.4A patent/CN110778985A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111536487A (en) * | 2020-04-22 | 2020-08-14 | 东风汽车集团有限公司 | Light distribution device of automobile signal lamp |
| CN111536487B (en) * | 2020-04-22 | 2021-03-19 | 东风汽车集团有限公司 | Light distribution device of automobile signal lamp |
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