CN108826120A - Starry sky projector - Google Patents
Starry sky projector Download PDFInfo
- Publication number
- CN108826120A CN108826120A CN201810877995.8A CN201810877995A CN108826120A CN 108826120 A CN108826120 A CN 108826120A CN 201810877995 A CN201810877995 A CN 201810877995A CN 108826120 A CN108826120 A CN 108826120A
- Authority
- CN
- China
- Prior art keywords
- rotary
- reflection body
- starry sky
- type camber
- camber reflection
- 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.)
- Pending
Links
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
- F21V14/00—Controlling the distribution of the light emitted by adjustment of elements
- F21V14/04—Controlling the distribution of the light emitted by adjustment of elements by movement of reflectors
-
- 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
- F21V7/0025—Combination of two or more reflectors for a single light source
-
- 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, including LED light source, pattern segments, collimation lens and the reflection mirror array being arranged successively along optical path, the reflection mirror array includes several small reflectors, several small reflectors arrange to form a rotary-type camber reflection body, it further include the driving mechanism being connect with the central axes of the rotary-type camber reflection body, the driving mechanism drives the rotary-type camber reflection body to rotate relative to the central axes.By the way that rotary-type camber reflection body is arranged at collimation lens rear, and the driving mechanism connecting with its central axes is set, rotary-type camber reflection body is driven to rotate relative to central axes, dynamic star space projection effect may be implemented, the effect landed or drifted about such as snowflake, appreciation effect is improved, atmosphere activity is increased.In addition, multiple patterns can be set in pattern segments by setting pattern segments, to increase the quantity and projection pattern diversification of star, drop shadow effect is improved.
Description
Technical field
The present invention relates to lighting technical fields, and in particular to a kind of starry sky projector.
Background technique
Starry sky projector is a kind of decoration that the patterns such as billions of stars or snowflake are projected out on wall, ceiling, lawn
Lighting device, with such as KTV box, outdoor is as that can play construction atmosphere, decorate landscape on garden, lawn, plant indoors
Effect has very extensive application in life.
Starry sky projector currently on the market is all using laser diode as light source, but laser diode is nearly all
RGB monochrome, it is not easy to form the pattern of white.In addition, current starry sky projector is typically only capable to realize static projection,
Drop shadow effect is relatively simple, is not able to satisfy requirement of many occasions to atmosphere is enlivened.And existing starry sky projector is projected out
Star limited amount influences star space projection effect.
Summary of the invention
Aiming at the problems existing in the prior art, provide one kind may be implemented dynamic projection effect, improves star the present invention
The starry sky projector of star number amount.
In order to solve the above-mentioned technical problem, the technical scheme is that：
A kind of starry sky projector, including LED light source, pattern segments, collimation lens and the reflecting mirror battle array being arranged successively along optical path
Column, the reflection mirror array includes several small reflectors, and several small reflectors arrange to form a rotary-type camber reflection
Body further includes the driving mechanism connecting with the central axes of the rotary-type camber reflection body, and the driving mechanism drives the rotation
Transition camber reflection body is rotated relative to the central axes.
Further, the pattern segments are equipped with multiple spaced patterns.
Further, the side of the rotary-type camber reflection body is convex surface, and several small reflectors are set to described convex
On face.
Further, the side of the rotary-type camber reflection body is concave surface, and several small reflectors are set to described recessed
On face.
Further, the rotary-type camber reflection body is sphere, and several small reflectors are set to the table of the sphere
On face.
Further, each small reflector in the reflection mirror array is rectangular, and size is not all identical, and side length is 1-
10mm。
Further, the angle between the central axes and optical axis of the rotary-type camber reflection body is less than 90 °.
Further, further include beam splitting unit between the pattern segments and collimation lens.
Further, the beam splitting unit is made of multiple reflecting mirrors, and the reflecting surface of any two reflecting mirror is non-coplanar.
Further, the light beam that the LED light source issues forms several beamlets, Ruo Ganzi after the beam splitting unit
The center side that light beam projects on the collimation lens along collimation lens partially overlaps.
Starry sky projector provided by the invention, including be arranged successively along optical path LED light source, pattern segments, collimation lens and
Reflection mirror array, the reflection mirror array include several small reflectors, several small reflectors arrange to be formed one it is rotary-type
Camber reflection body further includes the driving mechanism connecting with the central axes of the rotary-type camber reflection body, the driving mechanism band
The rotary-type camber reflection body is moved to rotate relative to the central axes.By the way that rotary-type camber reflection is arranged at collimation lens rear
Body, and the driving mechanism connecting with its central axes is set, it drives rotary-type camber reflection body to rotate relative to central axes, may be implemented
Dynamic star space projection effect improves appreciation effect, increases atmosphere activity such as the effect that snowflake lands or drifts about.In addition, logical
Setting pattern segments are crossed, multiple patterns can be set in pattern segments, to increase the quantity and projection pattern multiplicity of star
Change, improves drop shadow effect.
Detailed description of the invention
Fig. 1-3 is the structural schematic diagram of three kinds of specific embodiments of starry sky projector of the present invention respectively.
As shown in the figure：10, LED light source；20, pattern segments；30, collimation lens；40, rotary-type camber reflection body；410, small
Reflecting mirror；50, driving mechanism；60, beam splitting unit；610, reflecting mirror；70, condenser lens.
Specific embodiment
The present invention is described in detail with reference to the accompanying drawing：
As shown in Figure 1-3, the present invention provides a kind of starry sky projector, including be arranged successively along optical path LED light source 10,
Pattern segments 20, collimation lens 30 and reflection mirror array, the reflection mirror array includes several small reflectors 410, described several small
The arrangement of reflecting mirror 410 forms a rotary-type camber reflection body 40, i.e. rotary body, further includes and the rotary-type camber reflection body
The driving mechanism 50 of 40 central axes connection, the driving mechanism 50 drive the rotary-type camber reflection body 40 it is relatively described in
Axis rotation.Specifically, the LED light source 10 includes LED chip 110 and fluorescent powder 120, LED chip 110 issues blue excitation
Light, fluorescent powder 120 are yellow fluorescent powder, and part blue excitation light is converted yellow light by it, final unconverted blue light and fluorescence
The yellow light mixing of powder outgoing can form white light, this is a kind of generic encapsulation structure of white light LEDs, can also be using other envelopes
Dress form, herein with no restrictions.The light beam that LED light source 10 issues forms figuratum hot spot after pattern segments 20, then leads to
It crosses after collimation lens 30 collimates light beam to project and reflects away to form star space projection effect on reflection mirror array, due to rotation
The camber reflection body 40 that makes the transition rotates under the drive of driving mechanism 50 relative to central axes, therefore dynamic star space projection may be implemented
Effect increases atmosphere activity, improves appreciation effect such as the effect that snowflake lands or drifts about.In addition, including in pattern segments 20
The small pattern (not marked in figure) of multiple gap settings, it is preferred that for the quantity of pattern in 2-6, the corresponding region of pattern can be with
Light is allowed to penetrate, the region except pattern is lightproof area, and light can not penetrate, therefore the light beam that LED light source 10 issues is by scheming
It is divided into the light beam of 2-6 kind pattern after case piece 20, to increase the quantity and projection pattern diversification of star, improves projection effect
Fruit.
In order to which the light beam for issuing LED light source 10 preferably focuses in pattern segments 20, in LED light source 10 and pattern segments 20
Between be arranged a condenser lens 70, the condenser lens 70 use biconvex lens, and convex front surface collect light angle less than 90
It spends (referring to full-shape), preferably 60 degree, less than 60 degree of the angle (referring to full-shape) of rear convex surface convergence light, preferably 30 degree, such one
A lens can realize the collection and convergence of light, save cost.
Rotary-type camber reflection body 40 is for realizing dynamic star space projection effect, it is preferred that rotary-type camber reflection body
40 side is convex surface, and several small reflectors 410 are set on the convex surface, as shown in Figure 1, several small reflectors
410 are set on the one week convex surface in side of rotary-type camber reflection body 40；Certainly, the side of rotary-type camber reflection body 40 can also
Think concave surface, several small reflectors 410 are set on the concave surface, as shown in Fig. 2, working as the side of rotary-type camber reflection body 40
When face is concave surface, several small reflectors 410 are set on the one week concave surface in side of rotary-type camber reflection body 40；Work as rotation
When type camber reflection body 40 is sphere, several small reflectors 410 are set on the surface of the sphere, when rotary-type curved surface is anti-
When the side of beam 40 is concave surface, rotary-type camber reflection body 40 face (i.e. projection surface) corresponding with light beam is concave surface, receivable
The hot spot of larger area, therefore the area of star space projection is also corresponding larger.When rotary-type camber reflection body 40 is cylindrical body or ball
When body, face corresponding with light beam is convex surface, and receivable facula area is relatively small, so that projected area is also relatively small.
Multiple parallel beamlets after the collimated collimation of lens 30, are finally incident on rotary-type camber reflection body 40,
Form countless projection patterns, it is preferred that the angle between the central axes and optical axis of the rotary-type camber reflection body 40 is less than
90°.Specifically, if that is, beam orthogonal projects rotation when the central axes of the rotary-type camber reflection body 40 are vertical with optical axis
On type camber reflection body 40, backtracking after light beam is reflected at this time cannot project away and form star space projection effect, therefore revolve
Angle between the central axes and optical axis of transition camber reflection body 40 need to be less than 90 degree, so that the light beam after reflection be made smoothly to project
It goes out, angle herein refers to that two straight line intersections are formed by acute angle.Preferably, each of described reflection mirror array is small anti-
Penetrate mirror 410 be it is rectangular, size is not all identical, and side length be 1-10mm, since each small reflector 410 can be in pattern segments
Pattern projects to form a picture, and in order to obtain projection image as much as possible, the quantity of small reflector 410 is The more the better, therefore
In the case where may be implemented, the size of small reflector 410 is the smaller the better, to minimize the body of rotary-type camber reflection body 40
Product, and in order to realize the different projection pattern of brightness, the size of small reflector 410 is not all identical, the big small reflector 410 of size
The pattern intensity cast out is high, and the pattern intensity that the small small reflector 410 of size is cast out is low, the different small reflection of size
Mirror 410 can arrange according to certain rules, such as be alternatively arranged, naturally it is also possible to which pattern multiplicity so can be improved in random alignment
Property, further increase drop shadow effect.
Preferably, which further includes the beam splitting unit between the pattern segments 20 and collimation lens 30
60.The beam splitting unit is made of multiple reflecting mirrors 610, and the reflecting surface of any two reflecting mirror 610 is non-coplanar.In this way, through
Light beam is divided into the different multiple beamlets of propagation angle, the beam cross section of different beamlets by the reflection for crossing beam splitting unit 60
It may be the same or different, since reflecting mirror 610 will not change the divergent state of light beam, so every beam beamlet is still
Divergent beams.Beam splitting unit 60 can also select other optical elements in addition to selecting reflecting mirror 610, such as prism etc., as long as
It is able to achieve and light beam is divided into the different light of several beam propagation angles.In the present embodiment, the sub-light of the formation of beam splitting unit 60
The quantity of beam is more than 2 beams or 2 beams.
As shown in figure 3, the light beam that the LED light source 10 issues forms several beamlets after the beam splitting unit 60,
The center side that several beamlets project on the collimation lens 30 along collimation lens 30 partially overlaps.Specifically, in order to subtract
Light beam is divided into the different beamlet in the direction of propagation by beam splitting unit 60, and adjusted by the volume of small rotary-type camber reflection body 40
The direction of propagation of the whole beamlet, when projecting it on collimation lens 30, on the basis of the center of collimation lens 30
Dividing and is overlapped, i.e., beamlet is translated along the direction of the center of collimation lens 30, it partially overlaps with adjacent beamlet, so as to
To reduce the facula area projected on rotary-type camber reflection body 40, the volume of rotary-type camber reflection body 40 is so reduced
And the volume of entire starry sky projector, and after the reflection of rotary-type camber reflection body 40, beamlet is thrown in different directions
It is shot out, will not overlap.
In conclusion starry sky projector provided by the invention, including be arranged successively along optical path LED light source 10, pattern segments
20, collimation lens 30 and reflection mirror array, the reflection mirror array include several small reflectors 410, several small reflectors
410 arrangements form a rotary-type camber reflection body 40, further include connecting with the central axes of the rotary-type camber reflection body 40
Driving mechanism 50, the driving mechanism 50 drive the rotary-type camber reflection body 40 relative to the central axes rotate.Pass through
Rotary-type camber reflection body 40 is set at 30 rear of collimation lens, and the driving mechanism 50 connecting with its central axes is set, is driven
Rotary-type camber reflection body 40 is rotated relative to central axes, and dynamic star space projection effect may be implemented, as snowflake lands or drifts about
Effect, increase atmosphere activity, improve appreciation effect.In addition, can be set in pattern segments 20 by setting pattern segments 20
Multiple patterns improve drop shadow effect to increase the quantity and projection pattern diversification of star.
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. a kind of starry sky projector, which is characterized in that including be arranged successively along optical path LED light source, pattern segments, collimation lens and
Reflection mirror array, the reflection mirror array include several small reflectors, several small reflectors arrange to be formed one it is rotary-type
Camber reflection body further includes the driving mechanism connecting with the central axes of the rotary-type camber reflection body, the driving mechanism band
The rotary-type camber reflection body is moved to rotate relative to the central axes.
2. starry sky projector according to claim 1, which is characterized in that the pattern segments are equipped with multiple spaced
Pattern.
3. starry sky projector according to claim 1, which is characterized in that the side of the rotary-type camber reflection body is convex
Face, several small reflectors are set on the convex surface.
4. starry sky projector according to claim 1, which is characterized in that the side of the rotary-type camber reflection body is recessed
Face, several small reflectors are set on the concave surface.
5. starry sky projector according to claim 1, which is characterized in that the rotary-type camber reflection body is sphere, institute
Several small reflectors are stated on the surface of the sphere.
6. starry sky projector according to claim 1, which is characterized in that each small reflector in the reflection mirror array
To be rectangular, size is not all identical, and side length is 1-10mm.
7. starry sky projector according to claim 1, which is characterized in that the central axes of the rotary-type camber reflection body with
Angle between optical axis is less than 90 °.
8. starry sky projector according to claim 1, which is characterized in that further include being located at the pattern segments and collimation lens
Between beam splitting unit.
9. starry sky projector according to claim 8, which is characterized in that the beam splitting unit is made of multiple reflecting mirrors,
And the reflecting surface of any two reflecting mirror is non-coplanar.
10. starry sky projector according to claim 9, which is characterized in that described in the light beam that the LED light source issues passes through
Several beamlets are formed after beam splitting unit, several beamlets project on the collimation lens along one side of the center of collimation lens
Divide and is overlapped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810877995.8A CN108826120A (en) | 2018-08-03 | 2018-08-03 | Starry sky projector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810877995.8A CN108826120A (en) | 2018-08-03 | 2018-08-03 | Starry sky projector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108826120A true CN108826120A (en) | 2018-11-16 |
Family
ID=64153465
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810877995.8A Pending CN108826120A (en) | 2018-08-03 | 2018-08-03 | Starry sky projector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108826120A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112728465A (en) * | 2021-02-04 | 2021-04-30 | 朗唯思科技(深圳)有限公司 | Starry sky projection lamp and method for generating stars and clouds |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1570681A (en) * | 2004-05-11 | 2005-01-26 | 罗筱泠 | Curved reflector |
| CN102645826A (en) * | 2011-11-10 | 2012-08-22 | 深圳市光峰光电技术有限公司 | Light source system, illuminating device and projecting device |
| CN105570735A (en) * | 2015-11-25 | 2016-05-11 | 全普光电科技(上海)有限公司 | Laser lamp and illuminating lamp comprising same |
| CN207122765U (en) * | 2017-06-14 | 2018-03-20 | 杨毅 | Light fixture |
| CN208546843U (en) * | 2018-08-03 | 2019-02-26 | 佛山市南海区协隆电器有限公司 | Starry sky projector |
-
2018
- 2018-08-03 CN CN201810877995.8A patent/CN108826120A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1570681A (en) * | 2004-05-11 | 2005-01-26 | 罗筱泠 | Curved reflector |
| CN102645826A (en) * | 2011-11-10 | 2012-08-22 | 深圳市光峰光电技术有限公司 | Light source system, illuminating device and projecting device |
| CN105570735A (en) * | 2015-11-25 | 2016-05-11 | 全普光电科技(上海)有限公司 | Laser lamp and illuminating lamp comprising same |
| CN207122765U (en) * | 2017-06-14 | 2018-03-20 | 杨毅 | Light fixture |
| CN208546843U (en) * | 2018-08-03 | 2019-02-26 | 佛山市南海区协隆电器有限公司 | Starry sky projector |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112728465A (en) * | 2021-02-04 | 2021-04-30 | 朗唯思科技(深圳)有限公司 | Starry sky projection lamp and method for generating stars and clouds |
| CN112728465B (en) * | 2021-02-04 | 2021-10-08 | 朗唯思科技(深圳)有限公司 | Starry sky projection lamp and method for generating stars and clouds |
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