CN205880481U - Illuminator and relevant projecting system and lighting system - Google Patents
Illuminator and relevant projecting system and lighting system Download PDFInfo
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- CN205880481U CN205880481U CN201620281296.3U CN201620281296U CN205880481U CN 205880481 U CN205880481 U CN 205880481U CN 201620281296 U CN201620281296 U CN 201620281296U CN 205880481 U CN205880481 U CN 205880481U
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Abstract
The embodiment of the utility model discloses illuminator and relevant projecting system and lighting system, this illuminator include first laser instrument, light guide part, first lens, scatter device and focusing device, first laser instrument is used for outgoing laser extremely light guide part, light guide part is used for laser along first light path guide to the first lens with coming from first laser instrument, first lens are used for coming from light guide part's laser assemble to scatter device, scatter device be used for with laser scattering is the scattered light to with its emergent light reflection to first lens, first lens still be used for with scatter device's emergent light is collected extremely light guide part, the partial of light that light guide part still is used for collecting first lens guides the outgoing along the second light path, a lens fixation in on the focusing device for the regulation from first lens to scatter device's distance. The embodiment of the utility model provides an advantage that the angle of divergence that has an emergent light was adjusted more easily.
Description
Technical field
This utility model relates to illumination and Display Technique field, particularly relates to a kind of light-emitting device and relevant projecting system
With illuminator.
Background technology
At present, LASER Excited Fluorescence powder is widely used to illumination and Display Technique with the technology of outgoing colourama or white light
Field.
Fig. 1 is the structural representation of a kind of light-emitting device in prior art.As it is shown in figure 1, light-emitting device includes laser instrument
11, collimating lens 12, yellow fluorescent powder sheet 13, lens 14.The blue laser of laser instrument 11 outgoing collimates through collimating lens 12
After, incident fluorescence powder sheet 13(light is as shown in band arrow dotted line).Yellow fluorescent powder sheet 13 absorb at least part of blue laser and
Producing gold-tinted, this gold-tinted and unabsorbed blue light are collected outgoing (light such as band arrow shown in solid) by lens 14.
But, prior art has following defects that the structure of once light-emitting device determines, dissipating of light-emitting device emergent light
Angle determines that, it is impossible to meet the demand of different range of exposures.
Utility model content
This utility model is mainly solving the technical problems that provide a kind of adjustable light-emitting device of the angle of divergence and relevant throwing
Shadow system and illuminator.
This utility model embodiment provides a kind of light-emitting device, including the first laser instrument, light guiding piece, the first lens, dissipates
Injection device and focussing mechanism；First laser instrument is for shoot laser to described smooth guiding piece；Described smooth guiding piece is for will be from
The laser of the first laser instrument guides to the first lens along the first light path；First lens are for by the laser from described smooth guiding piece
Converge to described scattering device；It is scattered light that described scattering device is used for described laser light scattering, and is reflexed to by its emergent light
First lens；First lens are additionally operable to collect to described smooth guiding piece, described smooth guiding piece the emergent light of described scattering device
The part being additionally operable to the light by the first lens collection guides outgoing along the second light path；First lens are fixed on described focussing mechanism
On, for regulation from the first lens to the distance of described scattering device.
Alternatively, described smooth guiding piece includes the light transmission medium of reflecting mirror and this mirror environment, and this reflecting mirror is first
Projected area in plane is less than the 1/2 of the first lens projected area on the first plane, and the first plane is for being perpendicular to first
The plane of lens axis；This reflecting mirror, should for the laser from the first laser instrument is reflexed to the first lens along the first light path
Light transmission medium is used for the major part of the emergent light of the described scattering device by the first lens collection along the second light path transmission outgoing.
Alternatively, described smooth guiding piece includes the reflecting mirror around loophole and this loophole, and this loophole is flat first
Projected area on face is less than the 1/2 of the first lens projected area on the first plane, and the first plane is saturating for being perpendicular to first
The plane of mirror axis；This loophole is for being transmitted through the first lens by the laser from the first laser instrument along the first light path, and this is anti-
Penetrate mirror and reflect outgoing for the major part of the emergent light of the described scattering device collected by the first lens along the second light path.
Alternatively, described smooth guiding piece is light splitting optical filter, has the attribute to the reflection of described laser part transmissive portion,
For the part light of the laser from the first laser instrument is guided to the first lens, the institute collected by the first lens along the first light path
The part light of the emergent light stating scattering device guides outgoing along the second light path.
Alternatively, described focussing mechanism includes that fixed frame from the inside to the outside, limitting casing and rotating frame, the first lens are fixed on
On this fixed frame, this fixed frame sidewall grows two poles, and this limitting casing sidewall has two stopper slots, and this rotating frame sidewall has two
Individual skewed slot, said two pole is respectively embedded into a described stopper slot and skewed slot；Described stopper slot is used for limiting this pole level
Motion on direction, described skewed slot for making described pole in the vertical direction move when described rotating frame rotates.
Alternatively, this light-emitting device also includes that second laser, the laser of the first laser emitting go out with second laser
The laser penetrated is combined into beam of laser and is incident to described smooth guiding piece.
Alternatively, second laser is red laser, green laser or infrared laser.
Alternatively, this light-emitting device also includes the second lens, and described smooth guiding piece is for by described in the first lens collection
The part of the emergent light of scattering device is guided out along the second light path and is incident upon the second lens, and the second lens are for by the portion of this emergent light
Divide collimation outgoing.
This utility model embodiment also provides for a kind of optical projection system, including any of the above-described kind of light-emitting device.
This utility model embodiment also provides for a kind of illuminator, including any of the above-described kind of light-emitting device.
Compared with prior art, this utility model embodiment includes following beneficial effect:
This utility model embodiment regulates the distance from the first lens to scattering device by arranging focussing mechanism so that
The angle of divergence of light-emitting device emergent light is adjustable；Further, this utility model embodiment utilizes light guiding piece by laser aiming extremely
First lens, laser is converged to scattering device by the first lens；And the emergent light of scattering device is through the first lens, light guiding piece
Outgoing, the position therefore moving the first lens can produce the effect of twice out of focus, so that the dissipating of light-emitting device emergent light
Angle is easier regulation, therefore, it is possible to effectively meet the demand of different range of exposures.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of light-emitting device in prior art；
Fig. 2 a is the structural representation of an embodiment of light-emitting device in this utility model embodiment；
Fig. 2 b is the structural representation of focussing mechanism in Fig. 2 a illustrated embodiment；
Fig. 3 is the structural representation of another embodiment of light-emitting device in this utility model embodiment；
Fig. 4 is the structural representation of another embodiment of light-emitting device in this utility model embodiment；
Fig. 5 is the structural representation of another embodiment of light-emitting device in this utility model embodiment.
Detailed description of the invention
For the sake of quoting and understanding, being described as follows of the technical term hereafter and used in accompanying drawing:
Material for transformation of wave length: material for transformation of wave length can use phosphorescent material, such as phosphor, it would however also be possible to employ nanometer
Material, such as quantum dot, it is also possible to use fluorescent material.
Exciting light: can excitation wavelength transition material so that material for transformation of wave length produces the light of different wavelengths of light.
Stimulated Light: the light that material for transformation of wave length stimulated luminescence excites and produces.
Exciting light, material for transformation of wave length, Stimulated Light are relative concepts.Such as, blue light excites yellow fluorescent powder to produce Huang
Light, now blue light is exciting light, and gold-tinted is Stimulated Light.And gold-tinted excitated red fluorescent powder produces HONGGUANG, now gold-tinted is to excite
Light, HONGGUANG is Stimulated Light.
With embodiment, this utility model embodiment is described in detail below in conjunction with the accompanying drawings.
Embodiment one
Refer to the structural representation that Fig. 2 a, Fig. 2 a is an embodiment of light-emitting device in this utility model embodiment；
Fig. 2 b is the structural representation of focussing mechanism in Fig. 2 a illustrated embodiment.As illustrated in figures 2a and 2b, light-emitting device 100 includes first
Laser instrument 110, collimating lens 120, light guiding piece the 130, first lens 140, Wavelength converter 150 are schemed with focussing mechanism 170(
Shown in 2b)；
First laser instrument 110 is for shoot laser to collimating lens 120, and after the collimated collimated of this laser, outgoing is to light
Guiding piece 130.In the present embodiment, the first laser emitting blue laser.Light guiding piece 130 is used for will be from the first laser instrument
The laser of 110 guides to the first lens 140 along the first light path (as shown in band arrow dotted line).In the present embodiment, light guiding piece 130
Including the air of reflecting mirror He this mirror environment, this reflecting mirror projected area on the first plane is less than the first lens 140
The 1/2 of projected area on the first plane, the first plane is the plane of the axis being perpendicular to the first lens；This reflecting mirror is used for
The first lens 140 will be reflexed to along the first light path from the laser of the first laser instrument 110.Herein it should be noted that herein
Reflecting mirror be for the laser from the first laser instrument be reflection, be not offered as any light is all reflected.
First lens 140 are for converging to Wavelength converter 150 by the laser from light guiding piece 130.Wavelength convert
Device 150 is used for the laser part wavelength convert from the first lens 140 being Stimulated Light, and by its emergent light, i.e. this is excited
Light and the laser-bounce do not changed are to the first lens 140.In the present embodiment, Wavelength converter includes yellow fluorescent powder, should
The part light wavelength conversion of blue laser is yellow Stimulated Light by yellow fluorescent powder, and the emergent light of Wavelength converter is that yellow is subject to
The white light that laser and the blue laser do not changed mix.In other embodiments, material for transformation of wave length can also be by institute
Excitation wavelength is had to be converted to Stimulated Light.
First lens 140 are additionally operable to collect and collimate to light guiding piece 130, i.e. the emergent light of Wavelength converter 150
Reflecting mirror and air about, this air is for the big portion by the emergent light of the Wavelength converter 150 of the first lens collection
Divide along the second light path (as shown in solid in band arrow) transmission outgoing.It is understood that the air of mirror environment can also replace
Change other light transmission medium into.
Further, as shown in Figure 2 b, the first lens 140 are fixed on focussing mechanism 170, for regulation from the first lens 140
Distance to Wavelength converter 150.In the present embodiment, focussing mechanism 170 specifically includes fixed frame 171 from the inside to the outside, limit
Position frame 172 and rotating frame 173, fixed frame 171, limitting casing 172 are preferably three concentric cylinders with rotating frame 173.First is saturating
Mirror 140 is fixed on fixed frame 171.Fixed frame 171 sidewall grows two poles 1711, limitting casing 172 sidewall have two spacing
Groove 1721, rotating frame 173 sidewall has two skewed slots 1731, two poles 1711 to be respectively embedded into a stopper slot 1721 and skewed slot
1731.Stopper slot 1721 is for limiting the motion in pole 1711 horizontal direction, and specific implementation can be rotating frame 173
Outside also have a housing, and the bottom of limitting casing is fixing with the bottom of this housing to be connected, and therefore limitting casing is immovable relative to this housing,
And rotating frame is rotatable relative to this housing.Promoting rotating frame 173 to make it rotate, the skewed slot 1731 of rotating frame also and then rotates, by
Limiting the motion in horizontal direction in the limited groove of pole 1,711 1721, therefore pole 1711 can be along with the rotation of skewed slot 1731
And in the vertical direction is raised and lowered, and then the first lens 140 in the vertical direction is driven to be raised and lowered, so that first
Lens 140 away from or near Wavelength converter.Such as, when rotating frame 173 turns clockwise, skewed slot 1731 turns clockwise
Dynamic, and pole 1711 is the most active, thus pole 1711 along with the rotation of skewed slot 1731 in the vertical direction
Raise, and then drive the first lens also to raise.
Usually, making light source is conventional technology from lens focus out of focus, but have in this utility model the best
Effect.Such as, when reducing because skewed slot rotates when the first lens, the first lens are close to Wavelength converter, and laser is entering
Penetrate the effect just having for the first time out of focus when material for transformation of wave length, i.e. hot spot on material for transformation of wave length and become big, then first
Lens collect this become big after hot spot time be also the collection of out of focus, so the angle of divergence of light-emitting device emergent light just becomes more
Greatly.It is to say, the position of mobile first lens creates the effect of twice out of focus, the angle of divergence of such emergent light is for first
The displacement of lens is more sensitive so that the angle of divergence of light-emitting device emergent light is easier regulation.Such as, in order to make luminescence
The angle of divergence of device emergent light is become 40 degree from 1 degree, originally needs the first lens are moved tens millimeters, and this utility model only needs
Move several millimeters the most much of that.
The present embodiment regulates the distance from the first lens to Wavelength converter by arranging focussing mechanism so that luminous
The angle of divergence of device emergent light is adjustable.Further, the present embodiment utilize light guiding piece by laser aiming to the first lens, first
Laser is converged to Wavelength converter by lens；And the emergent light of Wavelength converter is through the first lens, light guiding piece outgoing,
Therefore the position moving the first lens can produce the effect of twice out of focus, so that the angle of divergence of light-emitting device emergent light compares
Easily dimmable, therefore, it is possible to effectively meet the demand of different range of exposures.Further, the present embodiment utilizes the optics of incident laser
Propagation, much smaller than the feature of the etendue amount of the emergent light of Wavelength converter, is arranged on the emitting light path of the first lens
The reflecting mirror that area is less, can come at the most of emergent light ensureing Wavelength converter while mirror environment outgoing
Introduce laser, the advantage with compact conformation, small volume.
It is understood that the focussing mechanism of the distance from the first lens to Wavelength converter can be regulated in existing skill
There is other implementations many in art, the implementation of the focussing mechanism 170 in the present embodiment is a citing, does not make
For restriction of the present utility model.
In the present embodiment, owing to light path is reversible, the fraction emergent light of Wavelength converter 150, including Stimulated Light with not
The laser changed, can be through the first lens 140 outgoing to reflecting mirror, if reflecting mirror also reflects Stimulated Light, then Stimulated Light can quilt
Reflecting mirror reflects and escapes.This part light energy ratio owing to escaping is smaller, so being to connect in some occasion
It is subject to, such as hypermetropia occasion.In order to reduce light loss, it is preferable that reflecting mirror is preferably the reflection laser from the first laser instrument
And transmission is from the optical filter of the Stimulated Light of Wavelength converter, such as reflection blue exciting light transmission yellow Stimulated Light, this filter
Mating plate is additionally operable to this Stimulated Light along the second light path transmission outgoing.But, no matter how, not turned of Wavelength converter outgoing
The laser changed all can be reflected by a reflector and escape, and therefore the area of reflecting mirror is the smaller the better, it is sufficient to receives and swashs from first
Whole laser of light device.Preferably, reflecting mirror projected area on the first plane is flat first less than the first lens 140
1/4 of projected area on face.
In the present embodiment, reflecting mirror is arranged on the over top of the first lens, and incident laser is bent 90 degree by reflecting mirror
Reflex to the first lens.In other embodiments, reflecting mirror can also be by incident laser-bounce in other position of the first lens
Putting, incident laser can also be bent other angle by reflecting mirror.Additionally, the first laser instrument 110 can also with collimating lens 120
Place other position, such as, be placed on Wavelength converter 150 institute in the plane, then by increasing other reflecting mirror, laser is anti-
It is incident upon the reflecting mirror of light guiding piece 130.
In other embodiments, light-emitting device can also include dispersing element, to enter the laser from the first laser instrument
Row scattering so that focus on the laser facula homogenization on material for transformation of wave length, improves the efficiency of material for transformation of wave length.Scattering unit
Part can be arranged on the collimating lens any position to the light path of Wavelength converter, is preferably provided at collimating lens and first
In light path between lens.
Additionally, in other embodiments, Wavelength converter can use LED as substrate, and material for transformation of wave length is (as glimmering
Light powder) it is arranged in the light-emitting area of LED in modes such as coating or pad pastings.Such as, when using blue led as Wavelength converter
Substrate time, the one side of material for transformation of wave length is by the exciting of laser from the first lens, and another side is swashed by this blue led
Sending out, i.e. material for transformation of wave length is two-sided is excited simultaneously, thus can improve the emergent light brightness of light-emitting device.For another example, use is worked as
When red LED is as the substrate of Wavelength converter, although material for transformation of wave length will not be excited by this red LED, but red
Outgoing together with the Stimulated Light that the HONGGUANG of LED outgoing can produce with material for transformation of wave length, thus increase HONGGUANG light for light-emitting device
The energy of spectrum, compensate for the defect that the red energy of Stimulated Light is not enough；Now reflecting mirror is preferably reflected excitation light and transmission is subject to
Laser and the light splitting optical filter of HONGGUANG.
Complicated, therefore to make up the redness energy of Stimulated Light owing to arranging the technics comparing of material for transformation of wave length on LED
The defect that amount is not enough, light-emitting device can also include that second laser, the laser of the first laser emitting go out with second laser
The laser penetrated is combined into beam of laser and is incident to light guiding piece；Second laser is preferably red laser or green laser,
Make outside Wavelength converter outgoing exciting light and Stimulated Light, red laser that also outgoing has been scattered by material for transformation of wave length or
Green laser, thus increase red-light spectrum or the energy of green spectrum for light-emitting device.Second laser can also be infrared sharp
Light device, can be so the energy of light-emitting device increase infrared spectrum, in order to user can pass through infrared light detecting at night
Device finds this light-emitting device.
Embodiment two
Owing to the luminescence of material for transformation of wave length is lambertian distribution, the light of this wide-angle distribution wants to collect, past
Toward needing to realize high efficiency collection and collimation through at least two lens.Referring to Fig. 3, Fig. 3 is that this utility model is real
Execute the structural representation of another embodiment of light-emitting device in example.As it is shown on figure 3, light-emitting device 200 includes the first laser instrument
210, collimating lens 220, light guiding piece the 230, first lens 240, Wavelength converter 250 (do not show in figure with focussing mechanism
Go out).
The present embodiment is in place of the difference of embodiment one:
Light-emitting device 200 also includes the second lens 260, and light guiding piece 230 is arranged on the first lens 240 and the second lens
Between 260.The emergent light of Wavelength converter 250 is collected into by the first lens 240 has relatively small divergence angle, and outgoing is drawn to light
Guiding element 130, i.e. reflecting mirror and air about, this air is for going out the Wavelength converter 250 of the first lens collection
Penetrating the major part of light to transmit along the second light path (as shown in solid in band arrow) and be incident upon the second lens 260, the second lens will be for will
The major part collimation outgoing of this emergent light becomes directional light.
Embodiment three
Referring to Fig. 4, Fig. 4 is the structural representation of another embodiment of light-emitting device in this utility model embodiment.As
Shown in Fig. 4, light-emitting device 300 includes the first laser instrument 310, collimating lens 320, light guiding piece the 330, first lens 340, wavelength
Conversion equipment the 350, second lens 360 and focussing mechanism (not shown).
The present embodiment is in place of the difference of embodiment two:
Light guiding piece 330 is the reflecting mirror of band loophole, including the reflecting mirror 332 around loophole 331 and this loophole,
This loophole projected area on the first plane is less than the 1/2 of the first lens projected area on the first plane；This printing opacity
Hole 331 is used for be transmitted through the first lens 340 from the laser of the first laser instrument along the first light path (shown in the dotted line of band arrow),
This reflecting mirror 332 is used for the major part of the emergent light of the Wavelength converter 350 by the first lens collection along the second light path (band arrow
Head shown in solid) reflex to the second lens 360.Herein it should be noted that loophole herein is to swash for from first
The laser of light device is transmission, is not offered as all transmissions of any light.
In the present embodiment, owing to light path is reversible, the fraction emergent light of Wavelength converter 350, including Stimulated Light with not
The laser changed, understands through the first lens 340 outgoing to loophole 331, if loophole also transmission Stimulated Light, then Stimulated Light meeting
Escaped by loophole transmission.This part light energy ratio owing to escaping is smaller, so being permissible in some occasion
Accept, such as hypermetropia occasion.In order to reduce light loss, it is preferable that loophole is preferably transmission swashing from the first laser instrument
Light and reflection from the optical filter of Stimulated Light of Wavelength converter, such as transmitting blue exciting light reflection yellow Stimulated Light, should
Optical filter is additionally operable to along the second light path, this Stimulated Light is reflexed to the second lens 360.But, no matter how, Wavelength converter
The laser do not changed of outgoing all can be escaped by loophole transmission, and therefore the area of loophole is the smaller the better, it is sufficient to connect
Receive the whole laser from the first laser instrument 310.Preferably, loophole projected area on the first plane is less than first
The 1/4 of lens 340 projected area on the first plane.
Additionally, the present embodiment also includes diffusion sheet 380, it is arranged between collimating lens 320 and light guiding piece 330.Scattering
Sheet 380 is to make laser form a little angle of divergence, so so that the laser light focused on material for transformation of wave length
Speckle homogenization, improves the efficiency of material for transformation of wave length, and therefore diffusion sheet 380 can be arranged on collimating lens to Wavelength converter
Light path on any position, be preferably provided in the light path between collimating lens and the first lens.
The present embodiment regulates the distance from the first lens to Wavelength converter by arranging focussing mechanism so that luminous
The angle of divergence of device emergent light is adjustable；Further, the present embodiment utilizes the etendue amount of incident laser to turn much smaller than wavelength
The feature of the etendue amount of the emergent light of changing device, arranges the reflecting mirror of band loophole on the emitting light path of the first lens,
Introduced sharp while the most of emergent light ensureing Wavelength converter can be reflected by a reflector outgoing by loophole
Light so that the position of mobile first lens can produce the effect of twice out of focus, so that the angle of divergence of light-emitting device emergent light
It is easier regulation, therefore, it is possible to effectively meet the demand of different range of exposures.
Embodiment four
Referring to Fig. 5, Fig. 5 is the structural representation of another embodiment of light-emitting device in this utility model embodiment.As
Shown in Fig. 5, light-emitting device 400 includes the first laser instrument 410, collimating lens 420, light guiding piece the 430, first lens 440, wavelength
Conversion equipment the 450, second lens 460 and focussing mechanism (not shown).
The present embodiment is in place of the difference of embodiment two:
(1), in the present embodiment, Wavelength converter 450 is used for the whole wavelength convert of laser from the first lens as being subject to
Laser, therefore the emergent light of Wavelength converter only has this Stimulated Light.
(2), in the present embodiment, light guiding piece 430 is to reflect from the laser of the first laser instrument 410 and transmission from wavelength
The light splitting optical filter of the Stimulated Light of conversion equipment 450, now whole emergent lights of Wavelength converter 450, i.e. Stimulated Light are through
One lens 440 outgoing, to after light guiding piece 430, is transmitted through the second lens 460 through light guiding piece.If additionally, light-emitting device 400 is also
Including the second laser (such as red laser) described in embodiment one, then light splitting optical filter 430 also should have this laser (red
Color laser) the partially reflective attribute of fractional transmission, so that this laser has the part light can be through after being scattered by Wavelength converter
Light splitting filter transmission is to the second lens.It is understood that in other embodiments, light guiding piece 430 can also be for transmission
From the laser of the first laser instrument 410 and reflection from the light splitting optical filter of Stimulated Light of Wavelength converter 450.
It is enumerated above several implementations of light guiding piece, in fact prior art also has many to plant implementation,
As long as the light path of the laser from the first laser instrument with the most of emergent light from Wavelength converter can be distinguished i.e.
Can.
In addition it should be noted that when yellow fluorescent powder sheet of the prior art replaces to scattering device, light-emitting device
Equally exist the defect of the demand that cannot meet different range of exposures.And the Wavelength converter in the various embodiments described above replaces to
After scattering device, can solve the problem that defect of the prior art equally.Except that, laser needs not be exciting light, and scattering
Device is for being scattered light by the laser light scattering from the first lens, and by its emergent light, i.e. to reflex to first saturating for this scattered light
Mirror.
Wavelength converter is replaced to the light-emitting device of scattering device and includes the first laser instrument, light guiding piece, first saturating
Mirror, scattering device and focussing mechanism；First laser instrument is used for shoot laser to light guiding piece；Light guiding piece is used for will be from first
The laser of laser instrument guides to the first lens along the first light path；First lens are for converging to dissipate by the laser from light guiding piece
Injection device；It is scattered light that scattering device is used for the laser light scattering from the first lens, and by its emergent light, i.e. this scattered light is anti-
It is incident upon the first lens；First lens are additionally operable to collect to light guiding piece the emergent light of scattering device；Light guiding piece be additionally operable to by
The part of the emergent light of the scattering device that the first lens are collected guides outgoing along the second light path；First lens are fixed on focussing mechanism
On, for regulation from the distance of the first lens to scattering device.
This utility model embodiment regulates the distance from the first lens to scattering device by arranging focussing mechanism so that
The angle of divergence of light-emitting device emergent light is adjustable；Further, this utility model embodiment utilizes light guiding piece by laser aiming extremely
First lens, laser is converged to scattering device by the first lens；And the emergent light of scattering device is through the first lens, light guiding piece
Outgoing, the position therefore moving the first lens can produce the effect of twice out of focus, so that the dissipating of light-emitting device emergent light
Angle is easier regulation, therefore, it is possible to effectively meet the demand of different range of exposures.
The structure that the light-emitting device that Wavelength converter replaces to scattering device can possess in the various embodiments described above with
Function.It should be noted that in Fig. 2 to Fig. 4 embodiment, Wavelength converter replaces to scattering device；And Fig. 5 embodiment
In, in addition to Wavelength converter replaces to scattering device, light splitting optical filter 430 can not be that the laser to the first laser instrument is complete
Portion is reflected, and should have the attribute of the reflection of the laser part transmissive portion to the first laser instrument, so that this laser is scattered dress
There is part light can be transmitted through the second lens through light splitting optical filter 430 after putting scattering.Detailed description refer to the various embodiments described above,
Only simply enumerate some herein:
Alternatively, light guiding piece includes the light transmission medium of reflecting mirror and this mirror environment, and this reflecting mirror is in the first plane
On projected area less than the first lens projected area on the first plane 1/2, the first plane is for being perpendicular to the first lens
The plane of axis；This reflecting mirror is used for along the first light path, the laser from the first laser instrument is reflexed to the first lens, this printing opacity
Medium is used for the major part of the emergent light of the scattering device by the first lens collection along the second light path transmission outgoing.
Alternatively, light guiding piece includes the reflecting mirror around loophole and this loophole, and this loophole is on the first plane
Projected area less than the first lens projected area on the first plane 1/2, the first plane is for being perpendicular to the first lens axle
The plane of line；This loophole is used for along the first light path, the laser from the first laser instrument is transmitted through the first lens, this reflecting mirror
Major part for the emergent light of the scattering device collected by the first lens reflects outgoing along the second light path.
Alternatively, light guiding piece is light splitting optical filter, has the attribute to the reflection of laser part transmissive portion, in the future
Guide to the first lens along the first light path from the part light of the laser of the first laser instrument, the scattering device that the first lens are collected
The part light of emergent light guides outgoing along the second light path.
In this specification, what each embodiment stressed is the difference with other embodiments, each embodiment
Between identical similar portion see mutually.
This utility model embodiment also provides for a kind of optical projection system, including light-emitting device, on this light-emitting device can have
State the structure in each embodiment and function.This optical projection system can use various shadow casting technique, such as liquid crystal display (LCD,
Liquid Crystal Display) shadow casting technique, digital light path processor (DLP, Digital Light Processor) throw
Shadow technology.Such as, the light-emitting device of above-mentioned ejecting white light can be as the white light source of optical projection system.
This utility model embodiment also provides for a kind of illuminator, including light-emitting device, on this light-emitting device can have
State the structure in each embodiment and function.Illuminator such as has torch for illumination system, auto lamp illuminator, stage lighting to illuminate
System etc..
The foregoing is only embodiment of the present utility model, not thereby limit the scope of the claims of the present utility model, all
It is the equivalent structure utilizing this utility model description and accompanying drawing content to be made or equivalence flow process conversion, or directly or indirectly uses
In the technical field that other are relevant, the most in like manner it is included in scope of patent protection of the present utility model.
Claims (10)
1. a light-emitting device, it is characterised in that include the first laser instrument, light guiding piece, the first lens, scattering device and focusing
Device；
First laser instrument is for shoot laser to described smooth guiding piece；
Described smooth guiding piece is for guiding the laser from the first laser instrument to the first lens along the first light path；
First lens are for converging to described scattering device from the laser of described smooth guiding piece；
It is scattered light that described scattering device is used for described laser light scattering, and its emergent light is reflexed to the first lens；
First lens are additionally operable to collect to described smooth guiding piece the emergent light of described scattering device, and described smooth guiding piece is additionally operable to
The part of the light collected by the first lens guides outgoing along the second light path；
First lens are fixed on described focussing mechanism, for regulation from the first lens to the distance of described scattering device.
Light-emitting device the most according to claim 1, it is characterised in that described smooth guiding piece includes reflecting mirror and this reflecting mirror
Light transmission medium around, this reflecting mirror projected area on the first plane is less than the first lens perspective plane on the first plane
Long-pending 1/2, the first plane is the plane being perpendicular to the first lens axis；This reflecting mirror is for by the laser from the first laser instrument
Reflexing to the first lens along the first light path, this light transmission medium is for by the emergent light of the described scattering device of the first lens collection
Major part is along the second light path transmission outgoing.
Light-emitting device the most according to claim 1, it is characterised in that described smooth guiding piece includes loophole and this loophole
Reflecting mirror around, this loophole projected area on the first plane is less than the first lens projected area on the first plane
1/2, the first plane is the plane being perpendicular to the first lens axis；This loophole is for by the laser edge from the first laser instrument
First light path is transmitted through the first lens, and this reflecting mirror is for the big portion by the emergent light of the described scattering device of the first lens collection
Divide along the second light path reflection outgoing.
Light-emitting device the most according to claim 1, it is characterised in that described smooth guiding piece is light splitting optical filter, and it is right to have
The attribute of described laser part transmissive portion reflection, is used for the part light of the laser from the first laser instrument along the first smooth pass
Being directed at the first lens, the part light of the emergent light of the described scattering device collected by the first lens guides outgoing along the second light path.
Light-emitting device the most according to claim 1, it is characterised in that it is fixing that described focussing mechanism includes from the inside to the outside
Frame, limitting casing and rotating frame, the first lens are fixed on this fixed frame, and this fixed frame sidewall grows two poles, this limitting casing
Sidewall has two stopper slots, and this rotating frame sidewall has two skewed slots, said two pole be respectively embedded into a described stopper slot with
Skewed slot；Described stopper slot is for limiting the motion in this pole horizontal direction, and described skewed slot is for when described rotating frame rotates
Described pole in the vertical direction is made to move.
Light-emitting device the most according to claim 1, it is characterised in that this light-emitting device also includes second laser, first
The laser of laser emitting is combined into beam of laser with the laser of second laser outgoing and is incident to described smooth guiding piece.
Light-emitting device the most according to claim 6, it is characterised in that: second laser is red laser, green laser
Device or infrared laser.
Light-emitting device the most according to any one of claim 1 to 7, it is characterised in that this light-emitting device also includes second
Lens, described smooth guiding piece guides along the second light path for the part of the emergent light of the described scattering device collected by the first lens
Outgoing is to the second lens, and the second lens are for collimating outgoing by the part of this emergent light.
9. an optical projection system, it is characterised in that include the light-emitting device as according to any one of claim 1 to 8.
10. an illuminator, it is characterised in that include the light-emitting device as according to any one of claim 1 to 8.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620281296.3U CN205880481U (en) | 2016-04-06 | 2016-04-06 | Illuminator and relevant projecting system and lighting system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620281296.3U CN205880481U (en) | 2016-04-06 | 2016-04-06 | Illuminator and relevant projecting system and lighting system |
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| Publication Number | Publication Date |
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| CN205880481U true CN205880481U (en) | 2017-01-11 |
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| CN201620281296.3U Active CN205880481U (en) | 2016-04-06 | 2016-04-06 | Illuminator and relevant projecting system and lighting system |
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| CN (1) | CN205880481U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021017375A1 (en) * | 2019-07-31 | 2021-02-04 | 广州光联电子科技有限公司 | Multi-functional and multi-purpose portable laser illumination system and laser flashlight |
-
2016
- 2016-04-06 CN CN201620281296.3U patent/CN205880481U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021017375A1 (en) * | 2019-07-31 | 2021-02-04 | 广州光联电子科技有限公司 | Multi-functional and multi-purpose portable laser illumination system and laser flashlight |
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