CN108613047A - Starry sky projector - Google Patents
Starry sky projector Download PDFInfo
- Publication number
- CN108613047A CN108613047A CN201810283316.4A CN201810283316A CN108613047A CN 108613047 A CN108613047 A CN 108613047A CN 201810283316 A CN201810283316 A CN 201810283316A CN 108613047 A CN108613047 A CN 108613047A
- Authority
- CN
- China
- Prior art keywords
- light source
- starry sky
- pattern
- light
- reflection mirror
- 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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Links
- 239000000843 powder Substances 0.000 claims description 16
- 230000007246 mechanism Effects 0.000 claims description 10
- 239000003086 colorant Substances 0.000 claims description 6
- 230000005284 excitation Effects 0.000 claims description 6
- 230000003287 optical effect Effects 0.000 claims description 6
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 5
- 239000004065 semiconductor Substances 0.000 claims description 4
- 230000000694 effects Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 230000008859 change Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 241001316290 Gypsophila Species 0.000 description 1
- 241000533950 Leucojum Species 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 229910002114 biscuit porcelain Inorganic materials 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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
- F21S8/00—Lighting devices intended for fixed installation
-
- 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
- F21V13/12—Combinations of only three kinds of elements
- F21V13/14—Combinations of only three kinds of elements the elements being filters or photoluminescent elements, reflectors and refractors
-
- 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
- F21V33/00—Structural combinations of lighting devices with other articles, not otherwise provided for
- F21V33/0004—Personal or domestic articles
- F21V33/0024—Household or table equipment
- F21V33/0028—Decorative household equipment, e.g. plant holders or food dummies
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
Abstract
The invention discloses a kind of starry sky projectors, include light source, condenser lens, pattern segments, collimation lens and reflection mirror array successively along light path, pattern segments are equipped with the small pattern of multiple gap settings, reflection mirror array includes multiple small reflectors simultaneously, it in this way can be in the case of the small reflector limited amount that reflection mirror array is included, increase the quantity of projection pattern, expands lighting area.The brightness of LED light-emitting surfaces is improved using hemispherical reflector, can solve the inadequate disadvantage of LED luminance as light source by using LED simultaneously.
Description
Technical field
The present invention relates to lighting technical fields, and in particular to a kind of starry sky projector.
Background technology
Starry sky projector is a kind of decoration being projected out the patterns such as billions of stars or snowflake on wall, ceiling, lawn
Lighting device, it is outdoor as that on garden, lawn, plant, construction atmosphere can be played, decorate landscape with such as KTV boxes indoors
Effect has very extensive application in life.
Starry sky projector currently on the market is all to use laser diode as light source, but laser diode is nearly all
RGB monochrome, it can not be effectively synthesized white, thus be difficult to form the pattern of white.And LED light source is used since brightness is inadequate
The pattern being projected out when starry sky projector is dim, and effect is excessively poor.In addition, current starry sky projector, the pattern being projected out
Quantity is determined by the quantity of small reflector in reflection mirror array, due to cost considerations, the quantity of small reflector at present
Also it is not especially more, thus the number of patterns being projected out is limited.
Invention content
The present invention provides a kind of starry sky projector, to solve, light-source brightness existing in the prior art is insufficient, perspective view
The shortcomings that case limited amount.
In order to solve the above technical problem, the present invention provides a kind of starry sky projectors, include light source successively along light path, poly-
Focus lens, pattern segments, collimation lens and reflection mirror array, the pattern segments are equipped with the pattern of multiple gap settings, described anti-
It includes multiple small reflectors to penetrate lens array, and the multiple small reflector forms a curved-surface reflection side.
Further, the light source is LED light source, is provided with hemispherical reflector on the outside of light source, the hemispherical is reflective
Bowl is equipped with light-transmitting opening, and the LED light source is located at the centre of sphere of hemispherical reflector.
Further, the corresponding centre of sphere angle of the light-transmitting opening is less than 90 degree.
Further, the condenser lens is biconvex lens, and is less than 60 degree to the convergence angle of light.
Further, each small reflector in the reflection mirror array is rectangular, and the length of side is 1-10mm, the reflection
Lens array is pasted onto on a curved-surface structure and forms curved-surface reflection side.
Further, the light source is laser remote excitation phosphor source, including semiconductor laser diode and fluorescence
Bisque.
Further, further include having hemispherical reflector, the hemispherical reflector is equipped with light-transmitting opening, the fluorescent powder
Layer is located at the centre of sphere of hemispherical reflector.
Further, further include the first driving mechanism being connect with the reflection mirror array, drive the reflection mirror array
Rotation.
Further, the pattern segments are loop configuration, and the outer ring of the pattern segments is equipped with multiple and different patterns, pattern segments
It is connect with the second driving mechanism, the rotation of the second driving mechanisms control pattern segments.
Further, it is additionally provided with the optical filter of different colours in the pattern segments, the position of the optical filter and pattern
Position corresponds to.
Starry sky projector provided by the invention, starry sky projector provided by the invention include light source, focusing successively along light path
Lens, pattern segments, collimation lens and reflection mirror array, the pattern segments are equipped with the pattern of multiple gap settings, reflect simultaneously
Lens array includes multiple small reflectors, and multiple small reflectors form curved-surface reflection side, in this way can be in reflection mirror array institute
Including small reflector limited amount in the case of, increase the quantity of projection pattern；Simultaneously by using LED as light source, profit
The brightness of LED light-emitting surfaces is improved with hemispherical reflector, can solve the inadequate disadvantage of LED luminance.
Description of the drawings
Fig. 1 is the structural schematic diagram of one specific embodiment of starry sky projector of the present invention；
Fig. 2 is the structural schematic diagram of starry sky projector another specific embodiment of the present invention；
Fig. 3 is the structural schematic diagram of starry sky projector another specific embodiment of the present invention.
As shown in the figure：10, light source；110, LED chip；120, phosphor sheet；130, semiconductor laser；20, it focuses saturating
Mirror；30, pattern segments；40, collimation lens；50, reflection mirror array；510, small reflector；60, hemispherical reflector；610, light transmission
Mouthful；70, the first driving mechanism；80, the second driving mechanism.
Specific implementation mode
The present invention is described in detail below in conjunction with the accompanying drawings：
Fig. 1 is the structural schematic diagram of the starry sky projector first embodiment of the present invention.As shown in Figure 1, in the present embodiment,
Include light source 10, condenser lens 20, pattern segments 30, collimation lens 40 and reflection mirror array 50 successively along light path.The light source 10
For LED light source, including LED chip 110 and fluorescent powder 120, LED chip 110 sends out blue excitation light, and fluorescent powder 120 is yellow
Fluorescent powder, it converts the LED part blue excitation lights being emitted to yellow light, the Huang of final unconverted blue light and fluorescent powder outgoing
Light is mixed to form white light, this is a kind of encapsulating structure of white light LEDs, and the present invention is not limited thereto, to those skilled in the art,
More different packing forms can be found.
In the present embodiment, 10 outside of light source is equipped with a hemispherical reflector 60, the inner wall of the hemispherical reflector 60
For spherical reflective surface, light source 10 is located at the centre of sphere of spherical reflective surface.The top center of hemispherical reflector 60 is equipped with light-transmitting opening
610, the light-transmitting opening 610 can be open region, can also be the region for not plating reflectance coating.The light sent out from light source 10, one
Dividing and is directly emitted from light-transmitting opening 610, another part projects on the spheric reflection wall of reflector 60 and then is reflected back toward fluorescent powder,
Since there is fluorescent powder 120 scattering process, the light for being reflected back fluorescent powder will be scattered again, a part for light is scattered again from light transmission
Mouth 610 is directly emitted, and another part project on the spheric reflection wall of hemispherical reflector 60 and are reflected back fluorescence again again
On powder 120, repeatedly, the light being finally emitted from light source 10 is most of other than being partly absorbed all can be from light-transmitting opening 610
Outgoing, can improve the brightness of 10 light-emitting surface of light source, solve the problems, such as LED light source luminance shortage in this way.
In the present embodiment, although light source 10 is illustrated by taking White LED light source as an example, to the technology of this field
Personnel completely can be substituted for light source 10 LED of the various different colours such as red, green, to obtain the throwing of different colours
Shadow pattern, this simple replacement should also be included within protection scope of the present invention.
In the present embodiment, 610 corresponding region of light-transmitting opening can be arbitrary shape, such as round, ellipse, rectangle etc.,
It is preferably circular.The straight of the smallest circular in region corresponding to light-transmitting opening 610 can be completely included by defining a diameter of of light-transmitting opening 610
Diameter, the diameter relative to hemispherical reflector 60 centre of sphere shape in an angle, define the centre of sphere that the angle is light-transmitting opening 610
Angle.Preferably, the centre of sphere angle of light-transmitting opening 610 is less than 90 degree, more preferably 60 degree.The light exported from light source 10, first passes through hemisphere
The light-transmitting opening 610 of shape reflector 60, then line focus lens 20 focus in pattern segments 30.By the ball for controlling light-transmitting opening 610
Heart angle can utilize a lens to realize the focusing of emergent ray, if the centre of sphere angle corresponding to light-transmitting opening 610 is too big, so that it may
It can need multiple condenser lenses that could realize the focusing of light.
In the present embodiment, condenser lens 20 is preferably biconvex lens, and convex front surface collects the angle and light-transmitting opening 610 of light
Corresponding centre of sphere angle corresponds to, and the angle of rear convex surface convergence light is less than 60 degree (referring to full-shape), preferably 30 degree, such a
Mirror can realize the collection and convergence of light, save cost.The present embodiment merely provides an optimal implementation, certainly
Multiple condenser lenses can also be utilized, to make collection and converge the angle bigger of light.Preferably, light source 10 and condenser lens
The distance between 20 L1Relationship between the focal length f of condenser lens 20 is：F ＜ L1＜ 2f, condenser lens 20 and pattern segments 30 it
Between distance L2Relationship between the focal length f of condenser lens 20 is：L2＞ 2f, in this way, the light line focus lens that light source 10 is sent out
Picture after 20 in pattern segments 30 at amplification.
In the present embodiment, include the small pattern (not marked in figure) of multiple gap settings in pattern segments 30, it is preferred that
For the quantity of pattern at 2-6, the corresponding region of pattern can allow light to penetrate, and the region except pattern is lightproof area, and light can not
Through.The reflection mirror array 50 includes multiple small reflectors, it is preferred that each small reflector 510 is rectangular, and the length of side is in 1-
Between 10mm, the quantity of small reflector 510 is at 50 or more, since each small reflector 510 can be to the figure in pattern segments 30
Case projects to form a picture, and in order to obtain projection image as much as possible, the quantity of small reflector 510 is The more the better.It is the multiple
Small reflector 510 can be regularly arranged, can also be disorderly arranged, but the reflecting surface of all small reflectors 510 forms one jointly
Reflecting surface, which is preferably curved surface, and the curved surface can be concave surface, can also be convex surface, by by small reflector battle array
Row are arranged into the pattern that curved surface can be such that all small reflectors 510 project away and scatter, and the curvature of Control curve can control
The size of pattern dispersion range.It is a kind of Preferable scheme is that, by a large stretch of speculum, be cut into the small reflector array of 4mm, so
After paste on a curved-surface structure part, can so form camber reflection lens array.If gap setting has M in pattern segments 30
A small pattern, while reflection mirror array 50 includes N number of small reflector 510, can finally be projected out M*N pattern in this way,
And pattern scatter each other on the projection surface, forms the illuminating effect of babysbreath.It in this way, can be in reflection mirror array
Including small reflector limited amount in the case of, greatly increase projection pattern quantity.
Preferably, starry sky projector of the present invention further includes the first driving machine being connect with the reflection mirror array 50
Structure 70, first driving mechanism 70 drives the reflection mirror array 50 to rotate, to change the exit direction of light, to be formed
Dynamic projection effect.
Fig. 2 is the structural schematic diagram of another embodiment of starry sky projector of the present invention, the difference relative to first embodiment
Light source 10 is being replaced with into laser light source in this present embodiment, the light source 10 includes semiconductor laser 130 and phosphor powder layer
120.There is energy density more to concentrate the higher advantage of brightness, pass through remote excitation fluorescent powder relative to LED light source for laser light source
Form, can make fluorescent powder generate heat with laser diode generate thermal release, heat dissipation is more advantageous to, to keep light source bright
Degree further increases.Using laser light source as in the case of light source, if light-source brightness is sufficiently high, also may be used in the system
Not need hemispherical reflector 60, to save cost.To those skilled in the art, swashing in the embodiment of the present invention
Light emitting source can also change LED light source into, and the same form for using remote excitation fluorescent powder can include or not comprising reflector
60, above various situations should be all included within protection scope of the present invention.
Fig. 3 is the structural schematic diagram of another embodiment of starry sky projector of the present invention, relative to first embodiment, this implementation
Pattern segments 30 are arranged in the second driving mechanism 80 example, are such as arranged on the motor rotated at one, are cut by the rotation of motor
The image for changing projection can also make the image of projection have dynamic effect so as to constantly change the pattern of projection.It is preferred that
, an annular pattern segments 30 can be made, in the outer multiple and different pattern of setting that makes a circle of circular pattern piece, difference figure
Gap appropriate is kept between case.Then the pattern segments 30 of annular are fixed on a motor, are cut by the rotation of motor
Different patterns is changed, is inserted it into light path, different drop shadow effects is formed.It to those skilled in the art, can be with
The optical filter (not marked in figure) of different colours is set in pattern segments 30, the position of optical filter is corresponding with the position of pattern, from
And the projection pattern of different colours is obtained, this simple process similarly should also be included within protection scope of the present invention.
In conclusion starry sky projector provided by the invention, includes light source 10, condenser lens 20, pattern successively along light path
Piece 30, collimation lens 40 and reflection mirror array 50, the pattern segments 30 are equipped with the pattern of multiple gap settings, while speculum
Array 50 includes multiple small reflectors 510, and 510 quantity of small reflector that can included in reflection mirror array 50 in this way has
In the case of limit, increase the quantity of projection pattern, expands lighting area, it is simple in structure, small, easy to use, effect is steady
It is fixed reliable.The brightness of LED light-emitting surfaces is improved using hemispherical reflector 60, can be solved as light source by using LED simultaneously
The certainly inadequate disadvantage of LED luminance.
Although embodiments of the present invention are illustrated in specification, these embodiments are intended only as prompting,
It should not limit protection scope of the present invention.It is equal that various omission, substitution, and alteration are carried out without departing from the spirit and scope of the present invention
It should be included within the scope of the present invention.
Claims (10)
1. starry sky projector, which is characterized in that include light source, condenser lens, pattern segments, collimation lens and reflection successively along light path
Lens array, the pattern segments are equipped with the pattern of multiple gap settings, and the reflection mirror array includes multiple small reflectors, institute
It states multiple small reflectors and forms a curved-surface reflection side.
2. starry sky projector according to claim 1, which is characterized in that the light source is LED light source, is arranged on the outside of light source
There are hemispherical reflector, hemispherical reflector to be equipped with light-transmitting opening, the LED light source is located at the centre of sphere of hemispherical reflector.
3. starry sky projector according to claim 2, which is characterized in that the corresponding centre of sphere angle of the light-transmitting opening is less than 90
Degree.
4. starry sky projector according to claim 1, which is characterized in that the condenser lens is biconvex lens, and to light
The convergence angle of line is less than 60 degree.
5. starry sky projector according to claim 1, which is characterized in that each small reflector in the reflection mirror array
To be rectangular, and the length of side is 1-10mm, and the reflection mirror array is pasted onto on a curved surface member and forms curved-surface reflection side.
6. starry sky projector according to claim 1, which is characterized in that the light source is laser remote excitation fluorescent powder light
Source, including semiconductor laser diode and phosphor powder layer.
7. starry sky projector according to claim 6, which is characterized in that further include having hemispherical reflector, the hemisphere
Shape reflector is equipped with light-transmitting opening, and the phosphor powder layer is located at the centre of sphere of hemispherical reflector.
8. starry sky projector according to claim 1, which is characterized in that further include connect with the reflection mirror array
One driving mechanism drives the reflection mirror array to rotate.
9. starry sky projector according to claim 1, which is characterized in that the pattern segments are loop configuration, circular pattern
The outer ring of piece is equipped with multiple and different patterns, and pattern segments are connect with the second driving mechanism, the rotation of the second driving mechanisms control pattern segments.
10. starry sky projector according to claim 1, which is characterized in that be additionally provided with different colours in the pattern segments
Optical filter, the position of the optical filter are corresponding with the position of pattern.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810283316.4A CN108613047A (en) | 2018-04-02 | 2018-04-02 | Starry sky projector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810283316.4A CN108613047A (en) | 2018-04-02 | 2018-04-02 | Starry sky projector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108613047A true CN108613047A (en) | 2018-10-02 |
Family
ID=63659415
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810283316.4A Withdrawn CN108613047A (en) | 2018-04-02 | 2018-04-02 | Starry sky projector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108613047A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112034620A (en) * | 2019-06-04 | 2020-12-04 | 怡利电子工业股份有限公司 | Target reflection type diffusion sheet head-up display device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001133884A (en) * | 1999-11-09 | 2001-05-18 | Fujitsu Ltd | Illumination optical device |
| JP2003262915A (en) * | 2002-03-11 | 2003-09-19 | Takayuki Ohira | Fixed star projector |
| CN1570681A (en) * | 2004-05-11 | 2005-01-26 | 罗筱泠 | Curved reflector |
| CN101988630A (en) * | 2009-07-31 | 2011-03-23 | 深圳市光峰光电技术有限公司 | Stage lighting system and method thereof for proving high-brightness white light |
| CN104154490A (en) * | 2014-07-15 | 2014-11-19 | 无锡启晖光电科技有限公司 | Secondary reflection device of stage lamp/projection lamp |
| CN207122765U (en) * | 2017-06-14 | 2018-03-20 | 杨毅 | Light fixture |
| CN208222183U (en) * | 2018-04-02 | 2018-12-11 | 佛山市南海区协隆电器有限公司 | Starry sky projector |
-
2018
- 2018-04-02 CN CN201810283316.4A patent/CN108613047A/en not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001133884A (en) * | 1999-11-09 | 2001-05-18 | Fujitsu Ltd | Illumination optical device |
| JP2003262915A (en) * | 2002-03-11 | 2003-09-19 | Takayuki Ohira | Fixed star projector |
| CN1570681A (en) * | 2004-05-11 | 2005-01-26 | 罗筱泠 | Curved reflector |
| CN101988630A (en) * | 2009-07-31 | 2011-03-23 | 深圳市光峰光电技术有限公司 | Stage lighting system and method thereof for proving high-brightness white light |
| CN104154490A (en) * | 2014-07-15 | 2014-11-19 | 无锡启晖光电科技有限公司 | Secondary reflection device of stage lamp/projection lamp |
| CN207122765U (en) * | 2017-06-14 | 2018-03-20 | 杨毅 | Light fixture |
| CN208222183U (en) * | 2018-04-02 | 2018-12-11 | 佛山市南海区协隆电器有限公司 | Starry sky projector |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112034620A (en) * | 2019-06-04 | 2020-12-04 | 怡利电子工业股份有限公司 | Target reflection type diffusion sheet head-up display device |
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20181002 |
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| WW01 | Invention patent application withdrawn after publication |