CN104949068B - Possesses the light guide of light conductor - Google Patents
Possesses the light guide of light conductor Download PDFInfo
- Publication number
- CN104949068B CN104949068B CN201510138293.4A CN201510138293A CN104949068B CN 104949068 B CN104949068 B CN 104949068B CN 201510138293 A CN201510138293 A CN 201510138293A CN 104949068 B CN104949068 B CN 104949068B
- Authority
- CN
- China
- Prior art keywords
- light
- conductor
- light conductor
- installation sheet
- extending direction
- Prior art date
- 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
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
- G02B6/0086—Positioning aspects
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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
-
- 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
- F21V5/00—Refractors for light sources
- F21V5/08—Refractors for light sources producing an asymmetric light distribution
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Planar Illumination Modules (AREA)
Abstract
The present invention provides a kind of light guide (11), and light into the installation sheet of light conductor can be made to improve the utilization ratio of light, and the point for weakening the root portion of installation sheet shines, and improves the appearance of light conductor in the diffusion inside of light conductor.Light guide (11) possesses：The light conductor (12) of light of the extending direction guiding from LED light source to itself and the installation sheet (15) for light conductor (12) to be installed on to lamp main body.In the root of installation sheet (15), strengthening portion (18) and diffusion part (19) are formed in a manner of the extending direction to light conductor (12) is curved.Diffusion part (19), which includes, makes light (L3) into installation sheet (15) to the astigmatism face of the diffusion inside of light conductor (12).Astigmatism face is formed as the barrel surface received into light (L3) and generation scattering light (L4), is showed on the contour line in the section that the extending direction with light conductor (12) intersects as curve.
Description
Technical field
The present invention relates to a kind of light guide for the light conductor for possessing light of the guiding from light source.
Background technology
As shown in figure 5, this light guide is widely used in steering indicating light 4 of the auxiliary lamp 2 of headlight 1, rearview mirror 3 etc. respectively
Kind lamps apparatus for vehicle.As shown in fig. 6, the light conductor 12 of light guide 11 is slenderly formed by transparent resin material, by one end
Injection portion 13 injects the light from LED light source 5, and guides incident light L1 to the extending direction of light conductor 12, also, through rear side
The reflection of 14 inner face of ladder, reflected light L2 is projected in front of lamps and lanterns.
At present, for elongated light conductor 12 is installed on lamp main body, it is known on light conductor 12 to light conductor 12
The direction that intersects of extending direction be equipped with the light guides of one or more installation sheets 15.Such as recorded in patent document 1,
The inclined back taper portion of opposite direction (with reference to Fig. 5 with document) of the extending direction to light conductor is formed in the root of installation sheet,
By make into installation sheet light a part back taper portion plane carry out inner face reflection and to lamps and lanterns rear leak, suppress root
The technology that partial point shines (with reference to 0016 section).
Prior art literature
Patent document
Patent document 1：Special open 2012-48845 publications
Problems to be solved by the invention
But according to existing light guide, due to making the light into installation sheet carry out inner face reflection in plane,
As shown in fig. 7, there is the root 16 into light L3 self installations piece 15 to External leakage, or inner face reflected light a part towards lamp
Tool front etc., root 16 include point and shine and form estimated outer illumination mode the problem of point.In addition, according to patent document 1
The prior art, due to back taper portion will enter installation sheet light rear reflection from a part to light conductor, although point shine
Reduce, still, there are waste of the reflected light to the External leakage of light conductor, moreover, ladder of the light through the light conductor back side leaked,
The speculum of light conductor behind reflects again, and the periphery of installation sheet forms the bad feelings such as the illumination mode different from other positions
Condition.
The content of the invention
Therefore, it is an object of the present invention to provide a kind of light guide, the light into installation sheet can be made in light conductor
Diffusion inside, improves the utilization ratio of light, further, it is possible to which the point for weakening root portion shines, improves the appearance of light conductor.
A technical solution to solve project
To solve the above subject, the present invention provides following this light guide and lamps apparatus for vehicle.
(1) a kind of light guide, it is characterised in that in the leaded light for guiding the light from light source to the extending direction of itself
On body, the direction intersected to the extending direction with light conductor is equipped with the installation sheet for installing the light conductor, in installation sheet
Diffusion part of the root formed with the light made into the installation sheet to the diffusion inside of light conductor.Here, it is preferable that diffusion part bag
It is contained in the astigmatism face showed from the contour line in the section that the extending direction with light conductor intersects as curve.
(2) light guide as described in above-mentioned (1), it is characterised in that diffusion part is bent to the extending direction of light conductor, with
Extend the root of installation sheet.
(3) light guide as described in above-mentioned (1) or (2), it is characterised in that diffusion part is included as oneself and light conductor
Curve that the contour line in the section that extending direction intersects protrudes and the astigmatism face that shows.
(4) light guide as described in above-mentioned (1) or (2), it is characterised in that diffusion part is included as oneself and light conductor
The concave curve of contour line in the section that extending direction intersects and the astigmatism face that shows.
(5) a kind of lamps apparatus for vehicle, it is characterised in that possess the light guide dress as any one of above-mentioned (1)~(4)
Put.
Invention effect
Light guide according to the present invention, diffusion part is equipped with the root of installation sheet, makes the light into installation sheet in light conductor
Diffusion inside, therefore, the utilization ratio of light can be improved by having, and the point for relaxing root portion shines, and improves light conductor
The excellent effect such as appearance.
Brief description of the drawings
Fig. 1 is the stereogram for the light guide for representing an embodiment of the present invention；
Fig. 2 is the Zhou Biantu of the installation sheet of the guide-lighting effect of the light guide of explanatory drawin 1；
Fig. 3 (a), (b) are the sectional views along the a-a lines of Fig. 2 and the light conductor of b-b lines；
Fig. 4 is the sectional view represented with the light conductor in Fig. 3 astigmatism faces of different shapes；
Fig. 5 is the front view of the lamps apparatus for vehicle for the application examples for representing light guide；
Fig. 6 is the top view for the light conductor for representing existing light guide；
Fig. 7 (a), (b) are the Zhou Biantu of the installation sheet of problem points caused by illustrating existing light conductor.
Description of symbols
5LED light sources
11 light guides
12 light conductors
14 ladders
15 installation sheets
18 strengthening portions
19 diffusion parts
20 astigmatism faces
21 astigmatism faces
Embodiment
In the following, based on brief description of the drawings one embodiment of the present invention.Light guide 11 shown in Fig. 1 is equipped on such as Fig. 5
Shown headlight 1, steering indicating light 4, other various lamps apparatus for vehicle.It is as in the past, the light conductor of light guide 11 12 it is overall by
Transparent resin material draws the light from LED light source 5 to the extending direction (dash-dot arrows direction) of itself in slenderly being formed
Lead.
As shown in Figure 1 and Figure 2, at the back side of light conductor 12, multiple ladders are equipped with along the extending direction arrangement of light conductor 12
14, inner face reflection is carried out to incident light L1, makes reflected light L2 to injection in front of lamps and lanterns.With 14 adjoining position of ladder, leading
The outside of body of light 12, installation sheet 15 is equipped with to the direction that extending direction intersects.In the left and right sides of installation sheet 15, in light
The root of 5 side of source is formed with strengthening portion 18, in the root of the opposite side of strengthening portion 18 formed with diffusion part 19.
Strengthening portion 18 and diffusion part 19 symmetrically to be formed to the curved shape of the extending direction of light conductor 12 so that
The root extension of installation sheet 15.Moreover, the root of strengthening portion 18 and this two side reinforcement installation sheet 15 of diffusion part 19, diffusion part 19 is sent out
Wave the function of making light L3 into installation sheet 15 in the diffusion inside of light conductor 12.In addition, the strengthening portion 18 of 5 side of light source is due to penetrating
Enter light L1 to be introduced into, so as to formed open R shapes.
On the other hand, diffusion part 19 is different from simple R shapes, the side of installation sheet 15 with root portion to light conductor 12
The shape piled up of extending direction formed, the light L3 into installation sheet 15 is received by barrel surface.As shown in figure 3, the barrel surface is made
Play a role to make to enter light L3 in the astigmatism face 20 that the inside of light conductor 12 dissipates, as shown in Fig. 3 (a), as oneself and leaded light
Curve that the contour line in the orthogonal section of the extending direction of body 12 protrudes and show, as shown in Fig. 3 (b), incline with extending direction
On the section of oblique difference, also serve as showing from the curve that the contour line protrudes.
Therefore, according to the light guide 11 of the embodiment, into installation sheet 15 light L3 through astigmatism face 20 to multiple sides
To diverging, the scattering light L4 as de minimis energy can be in the diffusion inside of light conductor 12.As a result, it can reduce from root
The light leakage divided, improves the utilization ratio of light, and it is possible to which the point for relaxing root portion shines, improves the appearance of light conductor 12.Separately
Outside, since scattering light L4 is enclosed the inside of light conductor 12, it is impossible to influenced be subject to reflecting again for External leakage light, can
So that the entirety of light conductor 12 is aesthetically shone with substantially homogeneous lightness.
Fig. 4 represents the variation of diffusion part 19.In the diffusion part 19, the astigmatism face 21 of generation scattering light L4 with light conductor
On the section that 12 extending direction intersects, showed as from the concave curve of its contour line.Alternatively, it is also possible to make astigmatism face shape
As section waveform.In addition, the present invention is not only defined in the above embodiment, in the range of the objective without departing from invention,
The shape of light conductor 12 and installation sheet 15 can suitably be changed and implemented.
Claims (5)
- A kind of 1. light guide, it is characterised in thatOn the light conductor for guiding the light from light source to the extending direction of itself, intersect to the extending direction with light conductor Direction is equipped with the installation sheet for installing the light conductor, in the root of installation sheet formed with the light guide made into the installation sheet The diffusion part of the diffusion inside of body of light.
- 2. light guide as claimed in claim 1, wherein,The diffusion part is bent to the extending direction of light conductor, so that the root extension of the installation sheet.
- 3. light guide as claimed in claim 1 or 2, wherein,The diffusion part is included as the curve of the contour line protrusion from the section that the extending direction with light conductor intersects and showed Astigmatism face.
- 4. light guide as claimed in claim 1 or 2, wherein,The diffusion part is included and showed as the concave curve of contour line from the section that the extending direction with light conductor intersects Astigmatism face.
- A kind of 5. lamps apparatus for vehicle, it is characterised in thatPossess such as light guide according to any one of claims 1 to 4.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014071334A JP2015195086A (en) | 2014-03-31 | 2014-03-31 | Light guide device having light guide body |
| JP2014-071334 | 2014-03-31 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104949068A CN104949068A (en) | 2015-09-30 |
| CN104949068B true CN104949068B (en) | 2018-05-04 |
Family
ID=54163954
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510138293.4A Active CN104949068B (en) | 2014-03-31 | 2015-03-27 | Possesses the light guide of light conductor |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2015195086A (en) |
| CN (1) | CN104949068B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6589598B2 (en) * | 2015-11-25 | 2019-10-16 | 市光工業株式会社 | Mounting structure |
| KR102575163B1 (en) * | 2018-03-05 | 2023-09-06 | 현대자동차주식회사 | Light guide for vehicle |
| JP2019197643A (en) * | 2018-05-09 | 2019-11-14 | 株式会社小糸製作所 | Light guide body |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4642012B2 (en) * | 2006-12-27 | 2011-03-02 | 豊田合成株式会社 | Vehicle lighting |
| JP4979565B2 (en) * | 2007-12-14 | 2012-07-18 | 株式会社小糸製作所 | Vehicle lighting |
| JP5238411B2 (en) * | 2008-08-28 | 2013-07-17 | 株式会社小糸製作所 | Vehicle lighting |
| JP5721367B2 (en) * | 2010-08-24 | 2015-05-20 | 株式会社小糸製作所 | Vehicle lighting |
-
2014
- 2014-03-31 JP JP2014071334A patent/JP2015195086A/en active Pending
-
2015
- 2015-03-27 CN CN201510138293.4A patent/CN104949068B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104949068A (en) | 2015-09-30 |
| JP2015195086A (en) | 2015-11-05 |
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