CN109506147B - Optical module and lamp - Google Patents
Optical module and lamp Download PDFInfo
- Publication number
- CN109506147B CN109506147B CN201910005193.2A CN201910005193A CN109506147B CN 109506147 B CN109506147 B CN 109506147B CN 201910005193 A CN201910005193 A CN 201910005193A CN 109506147 B CN109506147 B CN 109506147B
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- China
- Prior art keywords
- light
- emitting unit
- reflecting plate
- guide element
- light guide
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S2/00—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V13/00—Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V1/00 - F21V11/00
- F21V13/02—Combinations of only two kinds of elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V7/00—Reflectors for light sources
- F21V7/04—Optical design
- F21V7/05—Optical design plane
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V2200/00—Use of light guides, e.g. fibre optic devices, in lighting devices or systems
- F21V2200/10—Use of light guides, e.g. fibre optic devices, in lighting devices or systems of light guides of the optical fibres type
- F21V2200/15—Use of light guides, e.g. fibre optic devices, in lighting devices or systems of light guides of the optical fibres type the light being emitted along at least a portion of the outer surface of the guide
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Planar Illumination Modules (AREA)
Abstract
The invention relates to the technical field of illumination and discloses an optical module and a lamp, wherein the optical module comprises a reflecting plate, and one side of the reflecting plate is a reflecting surface; the light guide element is positioned at the edge of the reflecting surface; the light emitting unit is positioned outside the light reflecting surface, and light emitted by the light emitting unit is incident into the light guiding element and is radiated to the light reflecting surface by part of the light guiding element positioned at the edge of the light reflecting surface. Compared with the prior art, the invention has the advantages that the hole is not required to be dug in the reflecting plate, the integrity of the reflecting plate is reserved, the light-emitting unit is used as the original light-emitting unit of the optical module, the light-emitting unit is converted into the linear light-emitting unit through the light guide element, and the light led out by the part of the light guide element positioned at the edge of the reflecting surface is used as the original light-emitting unit of the reflecting plate, so that the light of the whole reflecting plate is ensured to be uniform, and the light of the linear light-emitting unit can irradiate a larger area, so that the irradiation area of the optical module disclosed by the invention is larger.
Description
Technical Field
The present disclosure relates to lighting technology, and particularly to an optical module and a lamp.
Background
The large reflecting plate can not make the lamp layer complicated, so the large reflecting plate has been widely used. However, for lamps with large reflector plates, this is generally achieved by means of a bulb as a light-emitting unit in order to allow the light to reach a large area. The reason why the bulb is used as the light emitting means in the large reflection plate is that the LED is used as the light emitting means, and the area where the light emitted from the LED is directly irradiated is limited, and the light exceeding the range of 25mm×25mm is generally weak, and is not uniform. However, the bulb is used as a light-emitting unit, a hole for installing the bulb is required to be formed in the large reflecting plate, the integrity of the whole large reflecting plate is damaged in terms of modeling effect, a dark area exists around the hole of the bulb in terms of lighting effect, and the uniformity of the whole is damaged, and especially the dark area is more obvious when the bulb is lighted.
Disclosure of Invention
The invention aims to provide an optical module which solves the problems that the light can irradiate a larger area only by opening holes in a reflecting plate, the uniformity of the whole is destroyed after the holes are opened, and a dark area exists at the positions of the holes.
In order to achieve the above purpose, the invention adopts the following technical scheme:
provided is an optical module including:
the reflecting plate is formed by sequentially and smoothly connecting a plurality of planes and/or curved surfaces, and one side of the reflecting plate is a reflecting surface;
the light guide element is positioned at the edge of the reflecting surface; and
the light emitting unit is positioned outside the reflecting surface, and light emitted by the light emitting unit is incident into the light guide element and is radiated to the reflecting surface by part of the light guide element positioned at the edge of the reflecting surface.
As a preferable scheme of the optical module, the light guide element includes a first light guide element and a second light guide element which are sequentially connected, the first light guide element is located outside the coverage area of the reflecting plate and is arranged adjacent to the reflecting plate, one end of the second light guide element is located on the backlight surface of the reflecting plate, and the other end of the second light guide element is connected to the first light guide element; light emitted by the light emitting unit is incident into the second light guide element.
As a preferable mode of the optical module, the light emitting unit is arranged opposite to the end part of the second light guiding element.
As a preferable mode of the optical module, the distance between the light emitting unit and the light guide element is 0.15mm-1mm.
As a preferable mode of the optical module, the distance between the first light guide element and the reflecting plate is 0.5mm-3mm.
As a preferable mode of the optical module, the extending direction of the connecting line of the front end and the rear end of the first light guiding element is a set direction, and the projection length of the first light guiding element in the set direction is greater than or equal to the projection length of the reflecting plate in the set direction.
As a preferable mode of the optical module, the shape of the first light guide element is the same as the edge shape of the reflection plate of the portion corresponding to the first light guide element.
As a preferable scheme of the optical module, the light emitting unit is an LED light emitting unit.
The invention also provides a lamp, which comprises the optical module set in any scheme.
As an optimal scheme of the lamp, the lamp further comprises a light shielding plate, wherein the light shielding plate is positioned in front of the light guide element, and can block part of light rays emitted by the light guide element, so that the light emitted by the light guide element is reflected from the reflecting surface.
The beneficial effects of the invention are as follows: compared with the prior art, the invention has the advantages that the hole is not required to be dug in the reflecting plate, the integrity of the reflecting plate is reserved, the light-emitting unit positioned outside the reflecting surface is used as the original light-emitting unit of the optical module, the light-emitting unit is converted into the linear light-emitting unit through the light guide element, and the light led out by the part of the light guide element positioned at the edge of the reflecting surface is used as the original light-emitting unit of the reflecting plate, so that the light of the whole reflecting plate is ensured to be uniform, and the light of the linear light-emitting unit can irradiate a larger area, so that the irradiation area of the optical module disclosed by the invention is larger.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following description will briefly explain the drawings needed in the description of the embodiments of the present invention, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the contents of the embodiments of the present invention and these drawings without inventive effort for those skilled in the art.
FIG. 1 is a rear view of an optical module according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a light guiding element according to an embodiment of the present invention;
fig. 3 is a front view of an optical module according to an embodiment of the present invention.
In the figure:
1-reflecting plate, 2-light guiding element, 21-first light guiding element, 22-second light guiding element, 3-LED light emitting unit.
Detailed Description
In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved more clear, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to fall within the scope of the invention.
As shown in fig. 1, the present embodiment provides an optical module, which includes a reflective plate 1, a light guiding element 2 and a light emitting unit, wherein one side of the reflective plate 1 is a reflective surface, the other side is a backlight surface, and at least part of the light guiding element 2 is located at an edge of the reflective surface. The light emitting unit is positioned outside the light emitting surface, so that holes are not required to be formed in the reflecting plate 1, and the problems that the whole light uniformity of the reflecting plate 1 is damaged due to the holes and dark areas exist at the positions of the holes are solved. And the light emitted by the light emitting unit is incident into the light guiding element 2 and is radiated to the light reflecting surface by the part of the light guiding element 2 positioned at the edge of the light reflecting surface, so that the added light guiding element does not form a new dark area on the light reflecting surface, and the uniformity of the light radiated to the light emitting surface is improved through the light guiding element.
The light guiding element 2 includes a first light guiding element 21 and a second light guiding element 22 connected in sequence, where the first light guiding element 21 is located outside the coverage area of the reflecting plate 1, that is, the first light guiding element 21 is located outside the visible area, and the first light guiding element 21 and the second light guiding element 22 in this embodiment are integrally formed. One end of the second light guiding element 22 is located on the backlight surface of the reflecting plate 1, the other end is connected to the first light guiding element 21, light emitted by the light emitting unit enters the second light guiding element 22, enters the first light guiding element 21 from the second light guiding element 22, and is radiated onto the reflecting surface of the reflecting plate 1 from the first light guiding element 21.
The extending direction of the line connecting the front and rear ends of the first light guide element 21 is defined as a set direction, and in order to increase the light emission range and improve the uniformity of the light emission, the projection length of the first light guide element 21 in the set direction is required to be greater than or equal to the projection length of the reflection plate 1 in the set direction. The shape of the first light guide element 21 is the same as the edge shape of the reflection plate 1 at the portion corresponding to the first light guide element 21, so that the light reflected by the reflection plate 1 is more uniform. Preferably, the distance between the first light guiding element 21 and the reflective plate 1 is within a safety gap of 0.5mm-3mm.
As shown in fig. 2 and 3, the reflecting plate 1 of the present embodiment is a triangular reflecting plate, the reflecting plate is a free curved surface formed by smoothly connecting a plurality of curved surfaces, the maximum length of the reflecting plate 1 along the length direction of the light guiding element 2 at the edge of the reflecting surface is defined as the longest side of the reflecting plate 1, the length of the first light guiding element 21 is equal to or greater than the length of the longest side, and the shape of the first light guiding element 21 is the same as the shape of the longest side. Of course, the reflecting plate 1 of the present invention is not limited to the triangular reflecting plate of the present embodiment, but may be a half-parabolic reflecting plate, a rectangular reflecting plate, a circular reflecting plate, etc., and specifically, the shape and the size of the reflecting plate 1 are defined according to actual needs, and the modeling is more free.
In order to inject the light emitted by the light emitting unit into the light guiding element 2, the distance of the light emitting unit from the light guiding element 2 is 0.15mm-1mm, preferably the distance of the light emitting unit from the light guiding element 2 is 0.5mm. The light emitting unit in this embodiment is an LED light emitting unit 3, specifically an LED point light source or an LED bulb, which is specifically set according to actual needs. The LED light-emitting unit 3 is adopted in this embodiment because it has the characteristics of concentrated energy and strong directivity, that is, compared with the conventional light-emitting unit, the LED light-emitting unit 3 emits light in a directional manner, and most of the light emitted from the LED light-emitting unit 3 can be directly emitted into the light-guiding element 2, so that the utilization rate is far higher than that of the conventional light-emitting unit. The conventional light emitting unit is a light emitting unit similar to a bulb, and its light is relatively dispersed, and is generally not used as a light emitting unit. The length of the light guiding element 2 can be set according to actual needs, on the premise of ensuring that the light guiding element 2 emits light uniformly, the length of the light guiding element 2 can be 350mm-500mm at maximum, and the longer the light guiding element 2 is, the larger the irradiation range is after the light guided out of the light guiding element is reflected by the triangular reflecting plate 1, and the more uniform the light guided out of the light guiding element is after the light guided out of the light guiding element is reflected by the triangular reflecting plate 1 because the light guiding element 2 emits light uniformly.
Compared with the prior art, the embodiment does not need to dig holes in the reflecting plate 1, keeps the integrity of the reflecting plate 1, uses the LED light-emitting unit 3 positioned outside the reflecting surface as an original light-emitting unit of the optical module through the concept of 'point-line-plane', converts the LED light-emitting unit into a line light-emitting unit through the light guide element 2, and further uses the light guide element 2 as the original light-emitting unit of the reflecting plate 1, so that the light-emitting uniformity of the whole reflecting plate 1 is ensured, and the irradiation area of the optical module provided by the embodiment is larger because the light of the line light-emitting unit can irradiate a larger area.
The embodiment also provides a lamp, which comprises the optical module set according to any one of the schemes. Still include the light screen, the light screen is located light guide component 2 the place ahead, and the light screen can block the partial light that light guide component 2 sent, makes the light that light guide component 2 sent reflect off from the reflection of light face, can not directly see light guide component 2 in the visual district, and the light that LED lighting unit 3 sent is not directly through visual district emission, and makes the light that lamps and lanterns sent more even.
Note that the above is only a preferred embodiment of the present invention and the technical principle applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, while the invention has been described in connection with the above embodiments, the invention is not limited to the embodiments, but may be embodied in many other equivalent forms without departing from the spirit or scope of the invention, which is set forth in the following claims.
Claims (7)
1. An optical module, comprising:
the reflecting plate (1) is formed by sequentially and smoothly connecting a plurality of planes and/or curved surfaces, and one side of the reflecting plate (1) is a reflecting surface;
a light guide element (2), at least part of which is positioned at the edge of the reflecting surface; and
the light emitting unit is positioned outside the reflecting surface, and light emitted by the light emitting unit is incident into the light guide element (2) and is radiated to the reflecting surface by part of the light guide element (2) positioned at the edge of the reflecting surface;
the light guide element (2) comprises a first light guide element (21) and a second light guide element (22) which are sequentially connected, the first light guide element (21) is positioned outside the coverage area of the reflecting plate (1) and is arranged adjacent to the reflecting plate (1), one end of the second light guide element (22) is positioned on the backlight surface of the reflecting plate (1), and the other end of the second light guide element is connected with the first light guide element (21); light emitted by the light emitting unit is incident into the second light guide element (22);
the light emitting unit is arranged opposite to the end part of the second light guide element (22);
the distance between the first light guide element (21) and the reflecting plate (1) is 0.5mm-3mm.
2. An optical module according to claim 1, characterized in that the distance of the light emitting unit from the light guiding element (2) is 0.15mm-1mm.
3. The optical module according to claim 1, wherein the extending direction of the connection line of the front and rear ends of the first light guiding element (21) is a set direction, and the projection length of the first light guiding element (21) in the set direction is greater than or equal to the projection length of the reflecting plate (1) in the set direction.
4. An optical module according to claim 1, characterized in that the shape of the first light guiding element (21) is the same as the edge shape of the reflecting plate (1) of the portion corresponding to the first light guiding element (21).
5. An optical module according to any one of claims 1 to 3, characterized in that the light emitting unit is an LED light emitting unit (3).
6. A luminaire comprising an optical module as claimed in any one of claims 1 to 5.
7. A luminaire as claimed in claim 6, characterized in that it further comprises a light-shielding plate capable of blocking part of the light emitted by the light-guiding element (2) such that the light emitted by the light-guiding element (2) is reflected from the light-reflecting surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910005193.2A CN109506147B (en) | 2019-01-03 | 2019-01-03 | Optical module and lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910005193.2A CN109506147B (en) | 2019-01-03 | 2019-01-03 | Optical module and lamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109506147A CN109506147A (en) | 2019-03-22 |
| CN109506147B true CN109506147B (en) | 2024-02-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910005193.2A Active CN109506147B (en) | 2019-01-03 | 2019-01-03 | Optical module and lamp |
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| Country | Link |
|---|---|
| CN (1) | CN109506147B (en) |
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| CN107091445A (en) * | 2016-02-17 | 2017-08-25 | Zkw集团有限责任公司 | Optical conductor for automobile front lamp |
| KR20180061928A (en) * | 2016-11-30 | 2018-06-08 | 에스엘 주식회사 | Lamp for vehicle |
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| CN108980773A (en) * | 2018-10-19 | 2018-12-11 | 华域视觉科技(上海)有限公司 | Multi-angle light guide and be used for car light lamps and lanterns |
| CN209084471U (en) * | 2019-01-03 | 2019-07-09 | 华域视觉科技(上海)有限公司 | A kind of optics module and lamps and lanterns |
| CN111750326A (en) * | 2020-07-29 | 2020-10-09 | 华域视觉科技(上海)有限公司 | A vehicle light guide tail structure and vehicle light guide |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6714379B2 (en) * | 2016-02-17 | 2020-06-24 | 株式会社小糸製作所 | Vehicle lighting |
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2019
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| DE10359182A1 (en) * | 2003-12-17 | 2005-07-21 | Hella Kgaa Hueck & Co. | Rear light for motor vehicles has an elongated light-conducting element with first and second front faces on first and second ends opposite each other |
| TWM302667U (en) * | 2006-07-04 | 2006-12-11 | Lite On Semiconductor Corp | Linear lighting apparatus for white light generation |
| KR20110023054A (en) * | 2009-08-28 | 2011-03-08 | 엘지디스플레이 주식회사 | Backlight device and liquid crystal display device having same |
| DE102012100816A1 (en) * | 2012-02-01 | 2013-08-01 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Vehicle lamp e.g. front lamp, for car, has light functional element serving as light guide and reflector, where light exit surface of portion of element acting as light guide is arranged above portion of element acting as reflector |
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| CN103234167A (en) * | 2013-04-18 | 2013-08-07 | 常州中隆车辆配件有限公司 | Car light with novel light guide structure |
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| KR20180061928A (en) * | 2016-11-30 | 2018-06-08 | 에스엘 주식회사 | Lamp for vehicle |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN109506147A (en) | 2019-03-22 |
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