CN106051508A - Directional light-emitting device - Google Patents
Directional light-emitting device Download PDFInfo
- Publication number
- CN106051508A CN106051508A CN201610623079.2A CN201610623079A CN106051508A CN 106051508 A CN106051508 A CN 106051508A CN 201610623079 A CN201610623079 A CN 201610623079A CN 106051508 A CN106051508 A CN 106051508A
- Authority
- CN
- China
- Prior art keywords
- lighting device
- back cover
- directional lighting
- lens
- sphere lens
- 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.)
- Granted
Links
Classifications
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- 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
- F21V5/041—Ball lenses
-
- 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
- F21V14/00—Controlling the distribution of the light emitted by adjustment 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
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
- F21V23/04—Arrangement of electric circuit elements in or on lighting devices the elements being switches
-
- 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
- F21V5/045—Refractors for light sources of lens shape the lens having discontinuous faces, e.g. Fresnel lenses
-
- 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 invention relates to the field of LED light reflection, in particular to a directional light-emitting device. The directional light-emitting device is characterized by comprising a spherical lens and a hemispherical back cover, wherein an LED array is evenly arranged on the concave surface of the hemispherical back cover, the focal length of the spherical lens is f, the radius of the concave surface of the hemispherical back cover is r2, and r2 is equal to f. The radius of the spherical lens is r1, the refractive index of the spherical lens is n, and r2 is equal to nr1/2(n-1). The directional light-emitting device has the beneficial effect of being capable of achieving directional lighting at the microsecond level.
Description
Technical field
The present invention relates to the reflective field of LED, particularly relate to a kind of directional lighting device.
Background technology
Existing directional lighting device typically uses mechanical rotation directional illumination, and such as light of stage, its shortcoming is in response to speed
Degree is slow.
Summary of the invention
It is an object of the invention to provide the directional lighting device that can realize directional illumination at Microsecond grade.
The technical solution used in the present invention is:
A kind of directional lighting device, is characterized in that: device includes sphere lens, hemispherical back cover, described hemispherical back cover concave surface
Being evenly arranged LED dot matrix, the focal length of sphere lens is f, and the concave of hemispherical back cover is r2, meets r2=f.
Described a kind of directional lighting device, is characterized in that: the radius of sphere lens is r1, and the refractive index of sphere lens is
N, meets r2=nr1/2 (n-1).
Further, described a kind of directional lighting device, it is characterized in that: sphere lens is non-Neil lens.
Described a kind of directional lighting device, is characterized in that: non-Neil reflective surface made by described hemispherical back cover.
Described a kind of directional lighting device, is characterized in that: LED dot matrix is driven by array switch.
Described a kind of directional lighting device, is characterized in that: array switch connects antenna array control unit.
Described a kind of directional lighting device, is characterized in that: have photosensitive device to be connected with antenna array control unit.
Described a kind of directional lighting device, is characterized in that: photosensitive device includes sphere lens, and hemispherical back cover is described
Hemispherical back cover concave surface is evenly arranged photosensitive unit array, and the focal length of sphere lens is f, and the concave of hemispherical back cover is
R2, meets r2=f.
Described a kind of directional lighting device, is characterized in that: the radius of the sphere lens of photosensitive device is r1, sphere lens
Refractive index be n, meet r2=nr1/2 (n-1).
Described a kind of directional lighting device, is characterized in that: the sphere lens of photosensitive device is non-Neil lens.
The invention has the beneficial effects as follows: a kind of directional lighting device that can realize directional illumination at Microsecond grade is provided.
Accompanying drawing explanation
Fig. 1 is directional lighting apparatus structure and schematic diagram.
Fig. 2 is the scheme that directional lighting device uses non-Neil lens.
Fig. 3 is this directional lighting device application case.
Wherein, 101 sphere lenses, 102LED chip, 103 hemispherical back covers, 104 array switch, 105 antenna array control lists
Unit, 201 non-Neil lens, 202 non-Neil reflective surfaces, 3000 photosensitive devices, 301 sphere lenses, 302 photosensitive units, 303 hemisphere
Shape back cover, 304 computers, 305 camera heads, 306 light sources.
Detailed description of the invention
The present invention is further described with embodiment below in conjunction with the accompanying drawings.
Fig. 1 is directional lighting apparatus structure and schematic diagram.The centre of sphere of sphere lens 101 and hemispherical back cover 103 overlaps,
The concave surface of hemispherical back cover 103 has been evenly arranged LED chip dot matrix, and 102 is one of them LED chip, and LED chip dot matrix connects
Become array circuit and driven control, array switch 104 to be connected on antenna array control unit 105 by array switch 104, antenna array control
Unit is by computer export control.
The focal length of sphere lens is f, and the concave of hemispherical back cover is r2, meets r2=f, on such LED chip dot matrix
Arbitrary LED chip be in position (the i.e. focusing surface of sphere lens and the concave surface of hemispherical back cover of focal distance f of sphere lens
Overlap), the light that the LED chip of such any point is launched forms exiting parallel light after sphere lens.
Sphere lens 101 is made up of transparency material, such as glass, lucite etc..If by glass ball, being equivalent to convex lens
Mirror, but be not common thin lens, ordinary lens formula can not directly be applied mechanically, and can solve with calculus by the law of refraction. ask
Solving, processing method is: the extended line of incident parallel light is defined as principal plane, meeting with the set of the reverse extending line intersection point of emergent light
The distance of accumulation and principal plane is equivalent focal length, calculus solve equivalent focal length be f=nr1/2 (n-1), n be transparency material
Refractive index (relative to the relative index of refraction of air), the refractive index of general glass is between 1.5～1.85, for example, it is assumed that n=1.5
, focal distance f=nr1/2 (n-1)=1.5r1, n=1.85, focal distance f=nr1/2 (n-1)=1.85r1/1.7=1.09r1, so,
The focus of general glass bead is in the range of distance centre of sphere 1.09r1 ~ 1.5r1, if n=2, focal distance f=nr1/2 (n-1)=r1
.Thus draw and meet condition: r2=nr1/2 (n-1), n are the refractive index of sphere lens.
Fig. 2 is the scheme that directional lighting device uses non-Neil lens, it is contemplated that saves material, uses non-Neil lens side
Case, is replaced by non-Neil lens 201 by sphere lens in Fig. 2, hemispherical back cover is replaced by non-Neil reflective surface 202, non-
Arranging LED chip dot matrix on Neil reflective surface 202,102 is one of them LED chip.
Fig. 3 is this directional lighting device application case: (1) is obtained scene image by camera head 305, and scene image is by counting
Calculation machine 304 processes, and such as video triggering, target following etc., computer 304 is by result input array control unit 105, by battle array
Row control unit 105 controls array switch 104 and drives certain LED chip or several LED chip luminous, and light passes through sphere lens
Form directional light after 101 convergences and irradiate assigned direction.(2) arranging photosensitive device 3000, photosensitive device 3000 includes sphere lens
301, hemispherical back cover 303, has been evenly arranged photosensitive cell array on hemispherical back cover 303, and 302 is one of them photosensitive list
Element, photosensitive unit such as CCD, CMOS etc..Light source 306 irradiates photosensitive device 3000, and photosensitive device 3000 can be with positioned light source 306
Locus, location information is sent to antenna array control unit 105 by such photosensitive device 3000, and its effect is that the present invention orients
It is luminous that light-emitting device can realize assigned direction according to photosensitive device 3000 to the location of light source, as surely penetrated, reflection etc..
Photosensitive device 3000 physical dimension meets r2=nr1/2 (n-1).
The sphere lens 301 of photosensitive device 3000 can be substituted by non-Neil lens.
The hemispherical back cover 303 of photosensitive device 3000 can be substituted by non-Neil reflective surface.
Claims (10)
1. a directional lighting device, is characterized in that: device includes sphere lens, hemispherical back cover, and described hemispherical back cover is recessed
Face is evenly arranged LED dot matrix, and the focal length of sphere lens is f, and the concave of hemispherical back cover is r2, meets r2=f.
A kind of directional lighting device the most according to claim 1, is characterized in that: the radius of sphere lens is r1, spherical
The refractive index of mirror is n, meets r2=nr1/2 (n-1).
A kind of directional lighting device the most according to claim 1 and 2, is characterized in that: sphere lens is non-Neil lens.
A kind of directional lighting device the most according to claim 1 and 2, is characterized in that: non-Buddhist nun made by described hemispherical back cover
That reflective surface.
A kind of directional lighting device the most according to claim 1 and 2, is characterized in that: LED dot matrix is driven by array switch.
A kind of directional lighting device the most according to claim 1 and 2, is characterized in that: array switch connects antenna array control list
Unit.
A kind of directional lighting device the most according to claim 1 and 2, is characterized in that: have photosensitive device and antenna array control list
Unit is connected.
A kind of directional lighting device the most according to claim 7, is characterized in that: photosensitive device includes sphere lens, hemisphere
Shape back cover, described hemispherical back cover concave surface is evenly arranged photosensitive unit array, and the focal length of sphere lens is f, hemispherical back cover
Concave is r2, meets r2=f.
A kind of directional lighting device the most according to claim 8, is characterized in that: the radius of sphere lens is r1, spherical
The refractive index of mirror is n, meets r2=nr1/2 (n-1).
A kind of directional lighting device the most according to claim 9, is characterized in that: sphere lens is non-Neil lens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610623079.2A CN106051508B (en) | 2016-08-02 | 2016-08-02 | Directional light-emitting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610623079.2A CN106051508B (en) | 2016-08-02 | 2016-08-02 | Directional light-emitting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106051508A true CN106051508A (en) | 2016-10-26 |
| CN106051508B CN106051508B (en) | 2022-12-09 |
Family
ID=57195959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610623079.2A Active CN106051508B (en) | 2016-08-02 | 2016-08-02 | Directional light-emitting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106051508B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111022967A (en) * | 2019-11-25 | 2020-04-17 | 中国科学院苏州纳米技术与纳米仿生研究所 | Regional light source dodging structure applied to fluorescence imaging system and fluorescence imaging system |
| WO2020244979A1 (en) * | 2019-06-03 | 2020-12-10 | Signify Holding B.V. | A light emitting device |
| US11965625B2 (en) | 2019-06-03 | 2024-04-23 | Signify Holding, B.V. | Light emitting device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6115168A (en) * | 1998-10-29 | 2000-09-05 | Advanced Optical Technologies, Inc. | Integrated optical retroreflecting modulator |
| US6204955B1 (en) * | 1999-07-09 | 2001-03-20 | Advanced Optical Technologies, Inc. | Apparatus for dynamic control of light direction in a broad field of view |
| US20050231803A1 (en) * | 2003-10-17 | 2005-10-20 | Handerek Vincent A | Retroreflective devices and systems |
| CN105204157A (en) * | 2015-10-30 | 2015-12-30 | 吴东辉 | Flickering directional reflective device |
| CN205919146U (en) * | 2016-08-02 | 2017-02-01 | 江苏特力威信息系统有限公司 | Directional illuminator |
-
2016
- 2016-08-02 CN CN201610623079.2A patent/CN106051508B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6115168A (en) * | 1998-10-29 | 2000-09-05 | Advanced Optical Technologies, Inc. | Integrated optical retroreflecting modulator |
| US6204955B1 (en) * | 1999-07-09 | 2001-03-20 | Advanced Optical Technologies, Inc. | Apparatus for dynamic control of light direction in a broad field of view |
| US20050231803A1 (en) * | 2003-10-17 | 2005-10-20 | Handerek Vincent A | Retroreflective devices and systems |
| CN105204157A (en) * | 2015-10-30 | 2015-12-30 | 吴东辉 | Flickering directional reflective device |
| CN205919146U (en) * | 2016-08-02 | 2017-02-01 | 江苏特力威信息系统有限公司 | Directional illuminator |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020244979A1 (en) * | 2019-06-03 | 2020-12-10 | Signify Holding B.V. | A light emitting device |
| US11965625B2 (en) | 2019-06-03 | 2024-04-23 | Signify Holding, B.V. | Light emitting device |
| CN111022967A (en) * | 2019-11-25 | 2020-04-17 | 中国科学院苏州纳米技术与纳米仿生研究所 | Regional light source dodging structure applied to fluorescence imaging system and fluorescence imaging system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106051508B (en) | 2022-12-09 |
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