CN109723981A - A kind of device and method for generating annular halation - Google Patents
A kind of device and method for generating annular halation Download PDFInfo
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- CN109723981A CN109723981A CN201711042667.8A CN201711042667A CN109723981A CN 109723981 A CN109723981 A CN 109723981A CN 201711042667 A CN201711042667 A CN 201711042667A CN 109723981 A CN109723981 A CN 109723981A
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- light beam
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- total reflection
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Abstract
A kind of device and method for generating annular halation.Described device includes: the light source positioned at described device back side, for generating the light beam of propagated forward at back side center；The first reflector positioned at front, for the light beam of the propagated forward to be carried out the first total reflection towards periphery；The second reflector with annular surface positioned at the first reflector periphery, for carrying out the second total reflection to the light beam through the first total reflection, and the light beam through the second total reflection leaves the light-emitting area of described device.The described method includes: generating the light beam of propagated forward by light source；First total reflection is carried out by light beam of first reflector to the propagated forward, so that the light beam through the first total reflection is propagated towards periphery；The second total reflection is carried out to the light beam through the first total reflection by the second reflector with annular surface of the first reflector periphery.The apparatus according to the invention and method have many advantages, such as to improve brightness uniformity, light utilization efficiency height, save cost.
Description
Technical field
This application involves a kind of for generating the technology of halation, and relates more specifically to a kind of for generating annular halation
Device and method.
Background technique
In electronic product, annular halation is common and is increasingly liked by people, because it has beauty
Effect and comfortable feeling can be brought.Therefore, the various articles or ornaments with annular halation are very suitable to
It is used in the fields such as household, tourism, amusement.
In the prior art, annular halation is usually generated by following two methods.The first is such as Fig. 1 a and figure
Shown in 1b like that, the bottom surface PCB of white is furnished with to the LED array of annular, and PCB is down placed in reflection by emission side
On device, annular halation result is generated from there through the annular light transmission part of reflector periphery.However, the method needs many
LED, and thus bring heat dissipation and power problems.Second is as shown in Fig. 1 c-1e, by annular luminous body
(such as luminous tube shown in Fig. 1 e) is placed on reflector to realize.As shown, in annular luminous body (or such as Fig. 1 c
With two semi-circular illuminators of docking shown in Fig. 1 d) both ends place light source, generated from there through annular luminous body
Annular halation result.However, the utilization efficiency of the LED in the method be it is low-down, uniformity of luminance is poor, and also have heat
The problems such as point and shade.Therefore, expectation obtains a kind of device and method to people always for a long time, can generate ring light
The above problem is avoided while dizzy.
The present invention provides a kind of device and method for generating annular halation, only need single source (usually
One LED), reflector is not needed, and the brightness uniformity of annular halation existing in the prior art can be efficiently solved
Difference, light utilization efficiency be low and heat dissipation and the problems such as power consumption.
Summary of the invention
To solve the above-mentioned problems, present invention employs following technical solutions.
According to an aspect of the invention, there is provided a kind of for generating the device of annular halation, described device includes: position
In the light source of described device back side, for generating the light beam of propagated forward at back side center；The first reflector positioned at front,
For the light beam of the propagated forward to be carried out the first total reflection towards periphery；There is ring positioned at the first reflector periphery
Second reflector on shape surface, for carrying out the second total reflection to the light beam through the first total reflection, and through the second total reflection
Light beam leaves the light-emitting area of described device, to generate annular halation.
According to another aspect of the present invention, a kind of method for generating annular halation is provided, which comprises by
The light beam of light source generation propagated forward；First total reflection is carried out by light beam of first reflector to the propagated forward, to make
The light beam through the first total reflection is obtained to propagate towards periphery；By the second reflector pair with annular surface of the first reflector periphery
Light beam through the first total reflection carries out the second total reflection, to generate annular halation.
Detailed description of the invention
Fig. 1 a-1e is illustrated according to prior art for generating the device of annular halation, wherein passing through in figures ia-ib
Annular halation is formed using ring-shaped LED array direct irradiation, and the annular hair with end LED is used in Fig. 1 c-1e
Body of light generates annular halation；
Fig. 2 a and Fig. 2 b illustrate the pictorial diagram of the device according to an embodiment of the invention for being used to generate annular halation,
Middle Fig. 2 a shows the outside drawing of the device, and Fig. 2 b shows the internal structure chart of the device；
It is former that Fig. 3 a-3c respectively illustrates the work according to an embodiment of the invention for generating the device of annular halation
Reason, analog result and illumination effect, wherein Fig. 3 a illustrates the working principle of the device, and Fig. 3 b illustrates the simulation knot of the device
Fruit, and Fig. 3 c illustrates the illumination effect of the device；
Fig. 4 illustrates an extension embodiment of the device according to the present invention for being used to generate annular halation, wherein to light source portion
Divide and has carried out some changes.
Specific embodiment
In order to keep the above objects, features and advantages of the present invention more obvious and easy to understand, come with reference to the accompanying drawing to the present invention
Specific embodiment be described in detail.
In the following description, numerous specific details are set forth in order to facilitate a full understanding of the present invention.But the present invention can be with
Much it is different from other way described herein to implement, and those skilled in the art can be without prejudice to intension of the present invention
In the case of make similar popularization, therefore the present invention is not limited by the specific embodiments disclosed below.
Fig. 2 a and Fig. 2 b show according to an embodiment of the invention for generating the device of annular halation respectively
Outside drawing and internal structure chart.As shown in Figure 2 a, which is substantially disc-shape, but the device can also use example
Such as rectangular other suitable shapes are only used as example here but are not limitation.In fig. 2 a, the lower surface of the device is hair
Optical surface can produce annular halation in the edge of lower surface.The upper surface of the device is the back side, and outer rim inclination, center has
Protrusion, and the protrusion is approximate cylindrical body.As will be described below, the inclined outer rim can be used to carry out light beam
Total reflection, and the protrusion can form the space for light beam propagated forward.
As shown in figure 2b, light source is placed in the top of the umbo of device back side.The light beam that the light source issues passes through
The protrusion simultaneously continues to propagate forward, and the first reflector total reflection for being then located at the cone cell in front (in order to avoid obscuring, is incited somebody to action
Total reflection herein is known as the first total reflection).Hereafter, the light beam through the first total reflection is equably propagated from center towards surrounding,
And it is totally reflected and (is known as total reflection herein again by the second reflector with annular surface of the first reflector periphery
Second total reflection).Light beam through the second total reflection leaves from the light-emitting area of the device, so that the periphery in light-emitting area is formed
One annular halation.
It limits as example but not, the total reflection twice of light beam is used in Fig. 2 a and Fig. 2 b, but can be according to this
The principle of invention is used and is totally reflected more times.
Preferably, first reflector is the cone or approximate cone at the lower surface center of the device.
Preferably, second reflector is the outer circular edge of the upper surface of described device.Preferably, it is complete to can be realization for reflecting surface
The mirror surface of reflection.Preferably, the light source is a LED on pcb board.
Fig. 3 a shows according to an embodiment of the invention for generating the working principle of the device of annular halation.
Firstly, being located at the LED hair in the protrusion (using approximate cylindrical shape in this example) at device upper surface (or back side) center
The light beam of propagated forward out, the light beam are divergent beams, and by protrusion to continue to travel to lower surface (luminous for this divergent beams
Face) on the first reflector.It is worth noting that the shape of protrusion should make the divergent beams of LED all be incident on described first
On the reflecting surface of reflector.First reflector has the surface in the approximately conical shape face of concave curved, and the light beam that will be dissipated is complete
It is reflected into non-diverging light beam (be convergent beam in this example, but be also possible to collimated light beam), and the convergence through being totally reflected
Light beam is equably propagated towards surrounding in the apparatus.
As shown in Fig. 3 a.The upper surface of the device can realize nonplanar grading profile by added material etc.,
To ensure light beam in a device towards the accessible propagation of surrounding.When at the outer ledge of beam propagation to device, light beam quilt
It is totally reflected again, and the light beam through being totally reflected for the second time leaves the device from light-emitting area, to form annular halation.The dress
The outer ledge set is inclined surface, and preferably with level at 30 ° of angles.
Fig. 3 b shows the analog result of the device of Fig. 3 a.From the analog result of Fig. 3 b as can be seen that by the device
The brightness of the annular halation of generation is highly uniform, and due to having used total reflection, so that the efficiency of light source has reached 80.5%,
This is that the prior art is difficult to realize.
Fig. 3 c shows the illumination effect of the annular halation as caused by the device, wherein the emission side of the device is put
On desktop, an ideal annular halation is produced.The color of halation may include red, green, yellow etc., and institute
Stating halation can also be the halation of flashing.
Fig. 4 illustrates an extension embodiment of the device according to the present invention for being used to generate annular halation, wherein light source
Be changed to be laterally emitted collimated light beam in the back side of device, the lateral parallel beam incident to be located at device back side center with 45 °
On the reflecting mirror that angle is placed, so that changed course is at the collimated light beam propagated downwards.Because having used collimated light beam in the device of Fig. 4,
So the first reflector in this embodiment can be using centrum reflecting surface (not having converging action), and because it is all-trans through first
The light beam penetrated still is collimated light beam, so the upper surface of the device uses plane.Through first total reflection light beam laterally to
Surrounding travels to the second reflector, and leaves the device from light-emitting area.Because in this embodiment, used can for the device
Isolated light source, so that the replacement and selection of light source are more convenient.
Although specific embodiment and general associated method has been described in the disclosure, to those skilled in the art
For member, the change and displacement of these embodiments and methods be will be apparent.Therefore, the foregoing description of example embodiment does not limit
Or the constraint disclosure.It is other in the case where not departing from the spirit and scope of the present disclosure as being determined by the claims that follow to change
Become, replacement and change are also possible.
Claims (13)
1. a kind of for generating the device of annular halation, described device includes:
Positioned at the light source of described device back side, for generating the light beam of propagated forward at back side center；
The first reflector positioned at front, for the light beam of the propagated forward to be carried out the first total reflection towards periphery；
The second reflector with annular surface positioned at the first reflector periphery, for the light beam through the first total reflection
The second total reflection is carried out, and the light beam through the second total reflection leaves the light-emitting area of described device, to generate annular halation.
2. the apparatus according to claim 1, wherein the light beam of the propagated forward is divergent beams, and the first reflector
For the approximately conical shape body with concave curved reflecting surface, so that the light beam through the first total reflection is non-diverging light beam.
3. the apparatus according to claim 1, wherein the light beam of the propagated forward is collimated light beam, and the first reflector
For the bullet with conical reflecting surface, so that the light beam through the first total reflection is collimated light beam.
4. device according to claim 1 or 2, wherein the back surface of described device is non-planar, so that it is guaranteed that through first
The accessible propagation of the light beam of total reflection.
5. the apparatus according to claim 1, wherein second reflector is the outer rim of described device.
6. device according to claim 1 or 2, wherein the light beam of the propagated forward is directly from the light of the light source
Beam.
7. device according to claim 1 or 3, wherein the light beam of the propagated forward is from the light source through reflecting
Light beam.
8. the apparatus according to claim 1, wherein the light source is a LED.
9. the apparatus according to claim 1, wherein the ring light is swooned for round or square ring.
10. a kind of method for generating annular halation, which comprises
The light beam of propagated forward is generated by light source；
First total reflection is carried out by light beam of first reflector to the propagated forward, so that the light beam through the first total reflection
It is propagated towards periphery；
It is complete that second is carried out to the light beam through the first total reflection by the second reflector with annular surface of the first reflector periphery
Reflection, to generate annular halation.
11. according to the method described in claim 10, wherein the light beam of the propagated forward is divergent beams, and described first
Reflector has the conical reflecting surface of concave curved.
12. according to the method described in claim 10, wherein the light beam of the propagated forward is collimated light beam, and described first
Reflector has conical reflecting surface.
13. according to the method described in claim 10, wherein the light source is a LED and/or the annular halation is circle
Or square ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711042667.8A CN109723981A (en) | 2017-10-31 | 2017-10-31 | A kind of device and method for generating annular halation |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711042667.8A CN109723981A (en) | 2017-10-31 | 2017-10-31 | A kind of device and method for generating annular halation |
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| CN109723981A true CN109723981A (en) | 2019-05-07 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1193773A2 (en) * | 2000-09-29 | 2002-04-03 | Omron Corporation | Optical device for an optical element and apparatus employing the device |
| CN102792197A (en) * | 2010-03-18 | 2012-11-21 | 皇家飞利浦电子股份有限公司 | A light mixing module, and a luminaire comprising such a light mixing module |
| CN204554511U (en) * | 2015-02-13 | 2015-08-12 | 飞利浦(中国)投资有限公司 | Optics and lighting apparatus |
| CN205782444U (en) * | 2016-05-23 | 2016-12-07 | 法雷奥照明湖北技术中心有限公司 | Photo-patterning device and illumination and/or signal designation equipment |
| CN205807297U (en) * | 2016-05-27 | 2016-12-14 | 飞利浦照明（中国）投资有限公司 | Collimating optic and spotlight |
-
2017
- 2017-10-31 CN CN201711042667.8A patent/CN109723981A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1193773A2 (en) * | 2000-09-29 | 2002-04-03 | Omron Corporation | Optical device for an optical element and apparatus employing the device |
| CN102792197A (en) * | 2010-03-18 | 2012-11-21 | 皇家飞利浦电子股份有限公司 | A light mixing module, and a luminaire comprising such a light mixing module |
| CN204554511U (en) * | 2015-02-13 | 2015-08-12 | 飞利浦(中国)投资有限公司 | Optics and lighting apparatus |
| CN205782444U (en) * | 2016-05-23 | 2016-12-07 | 法雷奥照明湖北技术中心有限公司 | Photo-patterning device and illumination and/or signal designation equipment |
| CN205807297U (en) * | 2016-05-27 | 2016-12-14 | 飞利浦照明（中国）投资有限公司 | Collimating optic and spotlight |
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Effective date of registration: 20210127 Address after: American Minnesota Applicant after: Andingbao Address before: New jersey, USA Applicant before: HONEYWELL INTERNATIONAL Inc. |
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Application publication date: 20190507 |