CN108870319A - A kind of illuminating lens and corresponding lighting unit - Google Patents
A kind of illuminating lens and corresponding lighting unit Download PDFInfo
- Publication number
- CN108870319A CN108870319A CN201810684595.5A CN201810684595A CN108870319A CN 108870319 A CN108870319 A CN 108870319A CN 201810684595 A CN201810684595 A CN 201810684595A CN 108870319 A CN108870319 A CN 108870319A
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- Prior art keywords
- incidence
- internal reflection
- total internal
- illuminating lens
- plane
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- 238000005286 illumination Methods 0.000 claims abstract description 11
- 230000000694 effects Effects 0.000 description 6
- 241001465382 Physalis alkekengi Species 0.000 description 5
- 230000004313 glare Effects 0.000 description 4
- 230000001678 irradiating effect Effects 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 4
- 230000006872 improvement Effects 0.000 description 3
- 238000009738 saturating Methods 0.000 description 3
- 230000004438 eyesight Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 241001416181 Axis axis Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000006854 communication Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001795 light effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000638 stimulation Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Classifications
-
- 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
- F21V5/04—Refractors for light sources of lens shape
-
- 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
- F21V7/0091—Reflectors for light sources using total internal reflection
-
- 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
Abstract
The present invention relates to a kind of illuminating lens and corresponding lighting units, the illumination is transparent to make light by plane of incidence incidence, projected after total internal reflection surface reflects by exit facet, so that light is projected along the opposite direction of incident ray, to realize the indirect lighting at top, dazzle is greatly reduced.
Description
Technical field
The present invention relates to optical field more particularly to a kind of illuminating lens for effectively reducing dazzle and corresponding illumination are single
Member.
Background technique
LED lamp in daily life and work using more and more common, especially in the heavy dependences lamp such as market, sales counter
The place of light effect.In order to provide good illuminating effect, user would generally place on the corresponding surface of sales counter or installation object
Multiple lamps and lanterns, but this also brings many problems, especially glare problem and protrudes, when lamp brightness is excessively high, when quantity is excessive,
It can be to the artificial feeling too strong at dim eyesight, light.
In order to solve this problem, researcher mostly uses replacement lamps and lanterns and combines the mode of cloth position to attempt to provide reasonable angle
Degree avoids the eyes of light direct irradiation people, weakens the direct stimulation to eyes；Or by doing non-glare treated to lamps and lanterns, with
The brightness for weakening emergent light makes it become soft and realizes purpose；When also or using lamps and lanterns, make lamps and lanterns according to highest luminance
The percentage of degree is illuminated, namely there are surplus, solves glare problem by adjusting illuminance, but effect is often paid no attention to
Think.
Thus, there are the needs improved to lamp lighting in the art, which can effectively subtract
Weak dazzle provides comfortable illumination.
Summary of the invention
In view of the above problems, indirect lighting can be provided the purpose of the present invention is to provide a kind of, by the general illumination in top
Angle controlled, reduce the illuminating lens and corresponding lighting unit of dazzle.
Generally, on the one hand, the illuminating lens of the application includes the plane of incidence, the total internal reflection surface positioned at plane of incidence side
And the exit facet being connected with the plane of incidence and total internal reflection surface；
The illuminating lens is configured to, and light is injected by the plane of incidence and after total internal reflection surface reflects, and is directed to along light
The opposite direction of line incident direction is projected by exit facet, to provide secondary illumination.
The another aspect of the application, provides a kind of lighting unit, and the lighting unit includes that light source and above-mentioned illumination are saturating
Mirror, the light source are located at the plane of incidence side of illuminating lens.
Compared with the prior art, the advantages of the present invention are as follows：The light that previous light source issues directly is projected to irradiation object, existing
It is acted on by total internal reflection and the opticpath direction after incidence is modified, control its irradiating angle, make it by a series of
It is finally projected along the opposite direction of light incident direction after reflection, refraction action, and irradiation is projected to the light of the injection
Object can be reduced the strong dazzle that the direct once irradiating of light generates, and the light ray energy after multiple reflections or refraction can decay,
Comfortable irradiation sense can be provided when the secondary illumination of light after decaying, reduces dazzle, the vision pressure for avoiding head-on direct projection from being formed
Power.
Detailed description of the invention
Fig. 1 is the illumination lens structure chart of an embodiment of the present invention.
Fig. 2 is another angled arrangement figure of Fig. 1.
Fig. 3 is the corresponding optical path effect diagram of Fig. 1.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to
The embodiment of attached drawing description is exemplary, and for explaining only the invention, and is not considered as limiting the invention.
This application involves illuminating lens with there is the plane of incidence 1, exit facet 2 ordinary lens as, but the difference is that,
The illuminating lens of the application further includes the total internal reflection surface 3 positioned at plane of incidence side, exit facet 2 and the plane of incidence 1 and total internal reflection
Face 3 is connected, therefore the lens can modify opticpath, controls light angle to cause light along the opposite of incident direction
Direction is projected, to realize the indirect lighting at the top of lighting apparatus, greatly reduces dazzle.
A kind of embodiment as shown in Figure 1,1 opposite side of the plane of incidence of lens are equipped with total internal reflection surface 3, and total internal reflection surface 3 is logical
It crosses exit facet 2 to be connected with the plane of incidence 1, fully reflecting surface 3 from the light of the plane of incidence 1 for that will be totally reflected and make it from exit facet 2
It projects again, refers to Fig. 2.In order to ensure light through the plane of incidence 1, total internal reflection surface 3 and when being projected by exit facet 2, light is projected
Line direction and incident ray direction are substantially opposite, and total internal reflection surface 3 and the angle setting of the plane of incidence 1 need to defer to, and make light by entering
The entrance of face 1 is penetrated, and when directive total internal reflection surface 3, the incidence angle into total internal reflection surface 3 is greater than critical angle, exit facet 2 and complete
Interior reflective surface 3 need to be deferred to, and light is reflected through total internal reflection surface 3, and by exit facet 2 project when, the angle of emergence of light will make light
Substantially direction is opposite with incident ray after line projects.
Light will appear energy attenuation in communication process, therefore, its when light beam initially enters the plane of incidence 1
Energy it is maximum, after undergoing a total internal reflection, energy will do it primary decaying, then when being projected by exit facet, and can be again
Decaying, so far, for incident light, significantly decaying occurs emergent light in energy, in other words, when incident light is direct
When being projected to irradiation object, corresponding energy is maximum at this time, namely brightness at this time is most bright, this will necessarily generate dazzle, cause to regard
Feel pressure, and after using the optical design guidance of the application illuminating lens, light conduct angle is controlled and changes, light
Then become agile soft when light projects again by " taming ", substantially reduced dazzle.
The illuminating lens of the application makes angle of incidence of light, the angle of emergence controllable, when exit facet and total internal reflection surface and enters
When penetrating the angle design difference between face, the light intensity and direction finally derived be will be different, so, actual use
The dazzle of the middle illuminance for needing to reach which kind of grade and which kind of grade is specifically designing moment unrestricted choice as needed,
And this is generally known for a person skilled in the art, and it is not emphasis of the invention, so it is no longer superfluous herein
It states.
With continued reference to Fig. 1 and Fig. 2, in the present embodiment, the illuminating lens uses symmetric design, even with Descartes
Coordinate system is reference, and the illuminating lens has using Z axis as the left pellicle mirror of symmetry axis and right pellicle mirror.A kind of embodiment feelings
The plane of incidence of condition, left pellicle mirror and right pellicle mirror is integrated design, as shown in Figure 1, the plane of incidence 1 of illuminating lens is pair with Z axis
Axis is claimed to be divided into the left plane of incidence 11, the right plane of incidence 12, which is plane.It is envisioned that the plane of incidence can also be with
It is non-planar, such as can be with level off to zero positive camber formed surface.Light source is located on the extended line of Z axis, since left and right is saturating
Mirror structure is the same, so it is able to achieve identical optical effect.
The total internal reflection surface 3 includes being separately connected the positioned at the first total internal reflection surface 31 of 11 top surface of the plane of incidence and both ends
Second total internal reflection surface 32 of one total internal reflection surface 31 and exit facet 2 and inclined design, the second total internal reflection surface 32 can be to first
Total internal reflection surface 31 reflect light reflected again, while also to the first total internal reflection surface 31 reflection light angle into
Row adjustment, in order to light as required preferably from exit facet 2 project, as second total internal reflection surface 32 with first entirely in
The slanted angle that reflecting surface is formed on cross section as shown in Figure 1 can be obtuse angle, at this time exit facet 2 and second it is complete in it is anti-
Penetrating the angle that face is formed on cross section as shown in Figure 1 then needs correspondence to be adjusted, to guarantee that light can be through secondary reflection
It is projected afterwards by exit facet 2.
In the present embodiment, the surface of first total internal reflection surface 31 is in the cambered design of positive camber variation, and second is complete
The surface of interior reflective surface 32 is slightly recessed, and when light is injected, the first total internal reflection surface 31 can also play aggregation to light and make
With causing some light that can not cause fiber-loss by reflection to avoid light excessively mixed and disorderly；And the second total internal reflection surface
32 are played disperse function simultaneously, with wider range of exposures when such light projects.Preferably, the plane of incidence 2
In slightly concave design.Illuminating lens be in above-mentioned symmetric design so that light from light source back surface project when, light source back surface not
Light is formed, while the light-emitting surface face of light source being avoided to irradiate object, can further overcome glare problem.
Referring to Fig. 2, a kind of lighting unit is present embodiments provided, the lighting unit includes that light source and illumination above-mentioned are saturating
Mirror, light source are located at the symmetry axis Z-direction of illuminating lens.The light source can be incandescent lamp, LED light source, be also possible to other
Lighting source.It should be noted that the light source can be equivalent at point light source, in order to guarantee the effect, while meeting system bloom
The size optimal proportion of the requirement of effect, light source and lens fully reflecting surface is 1: 20 or so, naturally it is also possible to it is suitably less than 1: 20,
However, how size selects, as long as can be equivalent at point light source, because can send out point light source when lens sizes are sufficiently large
Light out more comprehensively receives, for example, the lens combination under the present embodiment can to light of the light source in 150 degree of angles into
Line focusing, to reduce loss.
Certainly, which can also be located in illuminating lens namely illuminating lens is arranged at the symmetrical centre of the plane of incidence
There is the groove of accommodating light source, the light of light source is injected by the top surface of groove and the remainder of the plane of incidence.It is envisioned that
The lighting unit further includes other components, such as the lamp bracket, lampshade and the power lights to light source power supply of light source to be arranged,
And suchlike component and not this Applicant's Abstract graph emphasis, so no longer speak frankly in detail herein.
For the lighting unit using being designed in this way, can issue previous light source is directly projected to the light of irradiation object, is led to
Total internal reflection effect modification conduct direction is crossed, irradiating angle is controlled, along the phase of light incident direction after exit facet projects
Opposite direction projects, and reduces the strong dazzle that the direct once irradiating of light generates, the light ray energy meeting after multiple reflections or refraction
Decaying, when light after decaying secondary illumination, can provide comfortable irradiation sense, the visual pressure for avoiding head-on direct projection from being formed.
Other than above-mentioned improvement, other similar improvement are also contained in improvement threshold of the invention, herein just no longer
It repeats.Although an embodiment of the present invention has been shown and described, it will be appreciated by those skilled in the art that：This hair is not being departed from
These embodiments can be carried out with a variety of variations, modification, replacement and deformation in the case where bright principle and objective.
Claims (10)
1. a kind of illuminating lens, the exit facet (2) being connected including the plane of incidence (1), one end with the plane of incidence (1)；
It is characterized in that：
It further include the total internal reflection surface (3) positioned at the plane of incidence (1) side, the total internal reflection surface (3) and the plane of incidence (1) and outgoing
Face (2) is respectively connected with；
The illuminating lens is configured to, light by the plane of incidence (1) inject and through total internal reflection surface (3) reflect after, be directed to along
The opposite direction of light incident direction is projected by exit facet (2), to provide secondary illumination.
2. illuminating lens according to claim 1, it is characterised in that：
The total internal reflection surface (3) include the first total internal reflection surface (31), be connected with the first total internal reflection surface (31) second entirely
Interior reflective surface (32)；
First total internal reflection surface (31) is located at the top of the plane of incidence (1), the second total internal reflection surface (32) respectively with the first total internal reflection
Face (31) is connected with exit facet (2), to provide secondary total reflection and light is guided to be projected by exit facet (2).
3. illuminating lens according to claim 1, it is characterised in that：
The illuminating lens includes left pellicle mirror, right pellicle mirror, the left pellicle mirror and right pellicle mirror symmetric design.
4. illuminating lens according to claim 3, it is characterised in that：
The plane of incidence (1) of the illuminating lens is plane, is formed centered on symmetry axis corresponding with left pellicle mirror and right pellicle mirror
Two planes of incidence.
5. illuminating lens according to claim 2, it is characterised in that：
First total internal reflection surface (31) is the arcwall face that surface is changed with positive camber.
6. illuminating lens according to claim 2, it is characterised in that：
Second total internal reflection surface (32) is the arcwall face that surface is changed with negative cruvature.
7. illuminating lens according to claim 2, it is characterised in that：
The exit facet (2) is the arcwall face that surface is changed with negative cruvature.
8. a kind of lighting unit including the illuminating lens as described in any one of claim 1-2,5-7 and is located at the plane of incidence (1)
The light source of the other side, it is characterised in that：
The light source can be equivalent at point light source.
9. a kind of lighting unit, including illuminating lens as described in claim 3 or 4 and positioned at the light of the plane of incidence (1) other side
Source, it is characterised in that：
The light source can be equivalent at point light source, and the light source is located on the extended line of symmetry axis.
10. lighting unit according to claim 8 or claim 9, it is characterised in that：
The dimension scale of the light source and illuminating lens fully reflecting surface is 1: 20.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810684595.5A CN108870319A (en) | 2018-06-27 | 2018-06-27 | A kind of illuminating lens and corresponding lighting unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810684595.5A CN108870319A (en) | 2018-06-27 | 2018-06-27 | A kind of illuminating lens and corresponding lighting unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108870319A true CN108870319A (en) | 2018-11-23 |
Family
ID=64295403
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810684595.5A Pending CN108870319A (en) | 2018-06-27 | 2018-06-27 | A kind of illuminating lens and corresponding lighting unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108870319A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008053660A (en) * | 2006-08-28 | 2008-03-06 | Matsushita Electric Works Ltd | Light emitting module |
| CN201177211Y (en) * | 2008-05-07 | 2009-01-07 | 肖成钢 | Lens for LED energy conserving lamp |
| JP2010092956A (en) * | 2008-10-06 | 2010-04-22 | Mitsubishi Electric Corp | Led light source and luminary using it |
| JP2011095327A (en) * | 2009-10-27 | 2011-05-12 | Panasonic Electric Works Co Ltd | Illuminator and illuminator for signboard |
| CN103925496A (en) * | 2014-04-21 | 2014-07-16 | 立达信绿色照明股份有限公司 | Reflection lens type led lamp |
| CN104075240A (en) * | 2013-03-28 | 2014-10-01 | 林万炯 | Lens and illumination system using the same |
| TW201539047A (en) * | 2014-04-02 | 2015-10-16 | E Pin Optical Industry Co Ltd | Lens and direct type light source module |
| CN208804630U (en) * | 2018-06-27 | 2019-04-30 | 赛尔富电子有限公司 | A kind of illuminating lens and corresponding lighting unit |
-
2018
- 2018-06-27 CN CN201810684595.5A patent/CN108870319A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008053660A (en) * | 2006-08-28 | 2008-03-06 | Matsushita Electric Works Ltd | Light emitting module |
| CN201177211Y (en) * | 2008-05-07 | 2009-01-07 | 肖成钢 | Lens for LED energy conserving lamp |
| JP2010092956A (en) * | 2008-10-06 | 2010-04-22 | Mitsubishi Electric Corp | Led light source and luminary using it |
| JP2011095327A (en) * | 2009-10-27 | 2011-05-12 | Panasonic Electric Works Co Ltd | Illuminator and illuminator for signboard |
| CN104075240A (en) * | 2013-03-28 | 2014-10-01 | 林万炯 | Lens and illumination system using the same |
| TW201539047A (en) * | 2014-04-02 | 2015-10-16 | E Pin Optical Industry Co Ltd | Lens and direct type light source module |
| CN103925496A (en) * | 2014-04-21 | 2014-07-16 | 立达信绿色照明股份有限公司 | Reflection lens type led lamp |
| CN208804630U (en) * | 2018-06-27 | 2019-04-30 | 赛尔富电子有限公司 | A kind of illuminating lens and corresponding lighting unit |
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