CN110107827A - A kind of laser flashlight lighting system folding more optical axises and laser flashlight - Google Patents
A kind of laser flashlight lighting system folding more optical axises and laser flashlight Download PDFInfo
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- CN110107827A CN110107827A CN201910511575.2A CN201910511575A CN110107827A CN 110107827 A CN110107827 A CN 110107827A CN 201910511575 A CN201910511575 A CN 201910511575A CN 110107827 A CN110107827 A CN 110107827A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21L—LIGHTING DEVICES OR SYSTEMS THEREOF, BEING PORTABLE OR SPECIALLY ADAPTED FOR TRANSPORTATION
- F21L4/00—Electric lighting devices with self-contained electric batteries or cells
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- 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
- F21V13/02—Combinations of only two kinds of elements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- 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
- F21V13/02—Combinations of only two kinds of elements
- F21V13/08—Combinations of only two kinds of elements the elements being filters or photoluminescent elements and reflectors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- 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
- F21V7/00—Reflectors for light sources
- F21V7/10—Construction
-
- 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
- F21V7/22—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors
- F21V7/28—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors characterised by coatings
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- 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
- F21Y2115/30—Semiconductor lasers
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Semiconductor Lasers (AREA)
Abstract
The present invention relates to a kind of laser flashlight lighting system for folding more optical axises and laser flashlight, lighting system includes incident optical system, Wavelength converter and outgoing optical system；Incident optical system includes laser and an optical reflector, and laser is used to carry out exciting light primary event to form more optical axises with folded light beam and guide folded exciting light to Wavelength converter for issuing exciting light, an optical reflector；Wavelength converter forms stimulated light for absorbing part exciting light；Stimulated light and the exciting light for not being wavelength-converted device absorption form illumination light by outgoing optical system exit；Optical axis where the exciting light that laser issues and the emergent light axis of illumination light are not overlapped.Enter Wavelength converter after the folding that one optical reflector makes exciting light pass through more optical axis optical paths and form illumination light, while realizing high efficiency long distance illumination effect, reduces and use high power laser technical risk, and flashlight is small in size.
Description
Technical field
The present invention relates to flashlight technical fields, more particularly, to a kind of laser flashlight illumination system for folding more optical axises
System and laser flashlight.
Background technique
Handheld lighting unit is also known as flashlight, since it is with extraordinary portable mobility, at many families
Outer and other extraordinary applications are used widely, such as outdoor mountain-climbing, exploration, police search and rescue, small space illumination scene.
The lighting apparatus of this hand-held is usually made of cylinder and cylinder head again, supplying cell built in cylinder, is set on cylinder head
There is specific luminescent device, applied to the luminescent device of flashlight, the most traditional is low power halogen bulb, this kind of light source
It develops the color, but brightness and efficiency do not have advantage, and it is its fatal disadvantage that the service life is short.Half followed by come into vogue in recent years
Conductor illumination LED, LED is as emerging light source, and luminous efficiency is high, the service life is long, stability is good, takes and generation in each application field
Conventional light source trend.But due to being applied to flashlight art, it is required that the high requirement of portability, either traditional halogen
Plain lamp or LED light source are not ideal point light sources, and it is many difficult that this gives the secondary optics applied to flashlight art to increase
Degree, brings unfavorable factor to the volume of flashlight.
So the development and application of the semiconductor laser technique of modern brings new machine to novel flash light again, due to semiconductor
The fabulous directionality of laser, close to point light source as perfect light source, and laser has the characteristic of high brightness, so answering
The advantage of application field for this directive property illumination of flashlight is especially prominent.The two features based on laser, can be with
It greatly reduces the volume of flashlight and keeps light irradiation distance farther.
But another problem existing for laser is exactly the safety problem of laser, also just because of the high brightness characteristic of laser,
Its energy density is high in the extreme, when using such powerful laser, due to using the eye being easy accidentally to related personnel
Eyeball or skin cause serious injury, or even to cause fire, scald etc. serious with injury, especially not to user's eyes
Reversible injury, so needs are especially careful when using high power laser.
Summary of the invention
The present invention is directed to overcome above-mentioned defect in the prior art, a kind of laser flashlight illumination system for folding more optical axises is provided
The characteristics of system, the flashlight including the lighting system makes full use of the fabulous directionality of laser and high brightness, realizes high efficiency long distance
While from illumination, the risk using high power laser technology is greatly reduced, and flashlight is small in size.
In order to achieve the above objectives, the technical solution adopted by the present invention is that: provide it is a kind of fold more optical axises laser flashlight shine
Bright system, including incident optical system, Wavelength converter and outgoing optical system；Incident optical system includes laser and one
A optical reflector, laser are used to carry out primary event to exciting light to roll over for issuing exciting light, an optical reflector
Folded light beam forms more optical axises and guides folded exciting light to Wavelength converter；Wavelength converter swashs for absorbing part
It shines and forms stimulated light；Stimulated light and the exciting light for not being wavelength-converted device absorption form illumination light and are gone out by outgoing optical system
It penetrates；Optical axis where the exciting light that laser issues and the emergent light axis of illumination light are not overlapped.
In above scheme, the reflex of an optical reflector makes exciting light laggard by the folding of more optical axis optical paths
Enter Wavelength converter, the illumination light formed after Wavelength converter realizes high efficiency long distance by outgoing optical system exit
From illuminating effect, the emergent light axis of optical axis and illumination light is not overlapped where the exciting light issued due to laser, is greatly dropped
The low risk using high power laser technology, and laser makes flashlight small in size close to point light source；In addition, using a light
It learns reflector to reflect with folded light beam compared to multiple optical reflectors are used light beam, be dropped while improving optical efficiency
Low flashlight design complexity.
Preferably, the optical reflector is equipped with for the inclined-plane of right-angle prism and right-angle prism and excites for reflection blue
The high inverse medium film of light.For right-angle prism compared to ordinary optical reflecting optics, installation is more convenient, and the fixation after installation is more steady
Gu；High inverse medium film reflects convenient for the high efficiency of light, and high inverse medium film is the optics that nonmetallic chemical combination Coating Materials makes
Film, corresponding with deielectric-coating to have metal film, the two is compared, and it is low that there is deielectric-coating high adhesion force, not easily to fall off, absorption to absorb
The advantages that；High inverse medium film is the prior art, and this will not be detailed here.
Preferably, the lighting system further includes optical glass plain film or the diffusion sheet with scattering light function, optics
On diffusion sheet of the reflector set on optical glass plain film or with scattering light function.Optical glass plain film has scattering light
The diffusion sheet of function is fixed convenient for the installation of optical reflector, and will not stop light, convenient for the outgoing of illumination light.
Preferably, the incident optical system further includes the first lenslet being set between laser and optical reflector,
First lenslet is for the diverging blue excitation light that laser issues to be focused.It is arranged in this way so that laser is in transmission process
In, the sectional area in the blue excitation light beam of optical reflector position can be reduced, and then reduce the area of optical reflector.
It is further preferred that being equipped with the second lenslet, incident optical system between optical reflector and Wavelength converter
And outgoing optical system includes second lenslet.Setting is convenient for blue excitation light focusing on Wavelength converter in this way
On, in order to which Wavelength converter absorbs the stimulated light and unabsorbed exciting light high-energy synthetic metric density that part exciting light is formed
Illumination light.
It is further preferred that outgoing optical system further includes being set to the outermost luminous lens of light exit direction；Wavelength
Conversion equipment is located in the combined focal of luminous lens and the second lenslet；Stimulated light and be not wavelength-converted device absorption swash
It shines and forms subparallel illumination light outgoing after collimating via the second lenslet and luminous lens.It can be selected not according to use demand
Same luminous lens size and parameter is arranged in pairs or groups, and to convert the irradiating angle of the lighting system, realizes far and near distance variation
Demand.
Preferably, laser is set on primary optic axis, and the emergent light axis of illumination light is the second optical axis, Wavelength converter position
In on the second optical axis；The vertical second optical axis setting of primary optic axis, and the light is arranged in primary optic axis and the second optical axis intersection location
Learn reflector.Blue excitation light optical axis after optical reflector deflects is overlapped with the emergent light axis of illumination light, but the direction of propagation
On the contrary；Setting in this way, can be to prevent so that optical axis where the blue excitation light that laser issues is vertical with the emergent light axis of illumination light
The only application risk that blue excitation light directly projects, and then the contingency for preventing laser flashlight from using.
It is further preferred that optical reflector mirror-reflection area is greater than the sectional area of incident blue excitation light beam, and light
It learns projected area of the reflector mirror surface reflective surface area on vertical second optical axis and is less than the illumination light being emitted after the second lenslet
Beam on the second optical reflector position sectional area 1/3, and less than the 1/2 of the second lenslet diameter maximum sectional area.Light
It learns reflector and is arranged on the second optical axis and the illumination light of outgoing can be blocked, so needing meeting incident blue excitation light
Premise on reduce the area of optical reflector as far as possible, to increase the outgoing efficiency of illumination light.
Preferably, Wavelength converter is yellow phosphorus phosphor sheet.Yellow phosphorus fluorescent powder is excited by the formation of part excitation
Light.
The present invention also provides another laser flashlight lighting systems for folding more optical axises, including above-mentioned beam incident optical system
System, Wavelength converter and outgoing optical system；Incident optical system is multiple and is arranged around Wavelength converter；And it is all
It is equipped with the second lenslet between the overall structure and Wavelength converter of optical reflector formation in incident optical system, it is incident
Optical system and outgoing optical system include second lenslet.
Above scheme can or overlength distance remote for realizing high efficiency illumination, while reducing using high power laser skill
The risk of art, and flashlight is small in size.
In the prior art in order to realize overlength distance illuminate, need to be coupled to using multiple lasers single beam outgoing,
Illumination light is obtained as Multiplexing apparatus usually using dichroscope at this time, design swashs for blue on the plated film of dichroscope
Luminous reflectance coating, and the reflectance coating is high to yellow light thoroughly, when blue excitation light is incident on dichroscope, first part is blue
Color exciting light, which is reflected, to be directed on Wavelength converter, and second part blue excitation light is directed to lambert by dichroscope transmission
Lambertian secondary light source is formed on type scatterer.The Lambertian of stimulated radiation goes out in this way on Wavelength converter yellow light and formation
Secondary light source light combination again on dichroscope, illumination light required for being formed, this scheme is due to needing dichroscope to be divided
Photosynthetic light action is equivalent to two optical systems, will increase the corresponding design volume of product, it has not been convenient to carry, lose portable
Property most important significance, and above scheme have use dichroscope as Multiplexing apparatus and couple the light of multiple lasers it is super to realize
While long distance illumination effect, caused small product size big problem when can solve dichroscope just as Multiplexing apparatus.
The laser is that can launch the semiconductor laser device of blue excitation light and be set on primary optic axis, laser
The exciting light given off is focused along primary optic axis through the first lenslet, then primary optic axis and the second optical axis intersection location
The optical reflector of setting come make focus after blue excitation light deflect, the blue excitation light optical axis after deflecting and illumination
The emergent light optical axis coincidence of light, and the direction of propagation is opposite.In this way, by the deflection optical path of optical reflector, blue excitation light
Be directed on Wavelength converter (yellow phosphorus phosphor sheet), Wavelength converter by part blue excitation light excite after formed by
Laser, stimulated light and the exciting light for not being wavelength-converted device absorption are close via being formed after the second lenslet and luminous lens collimation
Parallel illumination light outgoing, to achieve the effect that white laser flashlight realizes high efficiency long distance illumination.
Another object of the present invention is to provide a kind of laser flashlight for folding more optical axises, including cylinder and cylinder head,
Said lighting system is equipped in cylinder head；It is equipped in cylinder and provides the battery of electric energy for laser, cylinder is equipped with sharp for controlling
The switch that light device opens and closes.
Compared with prior art, the invention has the benefit that
Enter Wavelength converter after the folding that the reflex of one optical reflector makes exciting light pass through more optical axis optical paths,
The illumination light formed after Wavelength converter realizes the remote illuminating effect of high efficiency by outgoing optical system exit, by
Optical axis and the emergent light axis of illumination light are not overlapped where the exciting light that laser issues, and are greatly reduced and are swashed using high-power
The risk of light technology, and laser makes flashlight small in size close to point light source；In addition, using an optical reflector to light beam into
Row reflection, compared to multiple optical reflectors are used, reduces flashlight design complexity with folded light beam while improving optical efficiency
Degree.
Detailed description of the invention
Fig. 1 is a kind of schematic diagram for the laser flashlight lighting system for folding more optical axises of embodiment 1.
Fig. 2 is a kind of schematic diagram for the laser flashlight lighting system for folding more optical axises of embodiment 2.
Fig. 3 be in embodiment 2 multiple lasers are issued using dichroscope in the prior art blue excitation light into
Row light combination obtains the schematic diagram of the optical system of illumination light.
Attached drawing mark: 201 lasers；301 first lenslets；403 optical reflectors；501 second lenslets；601 go out light
Lens；701 primary optic axis；702 second optical axises；901 Wavelength converters；1001 optical glass plain films；2001 dichroscopes.
Specific embodiment
Attached drawing of the present invention only for illustration, is not considered as limiting the invention.It is following in order to more preferably illustrate
Embodiment, the certain components of attached drawing have omission, zoom in or out, and do not represent the size of actual product；For art technology
For personnel, the omission of the possibility of certain known features and its explanation be will be understood by attached drawing.
Embodiment 1
As shown in Figure 1, present embodiments providing a kind of laser flashlight lighting system for folding more optical axises, including beam incident optical
System, Wavelength converter 901 and outgoing optical system；Incident optical system includes laser 201 and an optical reflector,
Laser 201 is used to carry out primary event to blue excitation light to fold for issuing blue excitation light, an optical reflector
Light beam forms more optical axises and guides folded blue excitation light to Wavelength converter 901；Wavelength converter 901 is for inhaling
Receiving portions exciting light forms stimulated light；Stimulated light and the exciting light for not being wavelength-converted the absorption of device 901 form illumination light by going out
Penetrate optical system exit；Optical axis where the blue excitation light that laser 201 issues and the emergent light axis of illumination light are not overlapped.
In the present invention, after the reflex of an optical reflector makes folding of the blue excitation light by more optical axis optical paths
Into Wavelength converter 901, the illumination light formed after Wavelength converter 901 is realized high by outgoing optical system exit
The remote illuminating effect of efficiency, the emergent light axis of optical axis and illumination light where the blue excitation light issued due to laser 201
It is not overlapped, greatly reduces the risk using high power laser technology, and laser makes flashlight small in size close to point light source；
In addition, being reflected with folded light beam light beam compared to multiple optical reflectors are used using an optical reflector 403, mention
Flashlight design complexity is reduced while high optical efficiency.
Wherein, the optical reflector 403 is equipped with for the inclined-plane of right-angle prism and right-angle prism and swashs for reflection blue
Luminous high inverse medium film.For right-angle prism compared to ordinary optical reflecting optics, installation is more convenient, and the fixation after installation is more steady
Gu；High inverse medium film reflects convenient for the high efficiency of light, and high inverse medium film is the optics that nonmetallic chemical combination Coating Materials makes
Film, corresponding with deielectric-coating to have metal film, the two is compared, and it is low that there is deielectric-coating high adhesion force, not easily to fall off, absorption to absorb
The advantages that；High inverse medium film is the prior art, and this will not be detailed here.
In addition, the lighting system further includes optical glass plain film 1001 or the diffusion sheet with scattering light function, light
Reflector 403 is learned set on optical glass plain film 1001 or on the diffusion sheet with scattering light function.Optical glass plain film 1001
Or the diffusion sheet with scattering light function is fixed convenient for the installation of optical reflector 403, and will not stop light, convenient for illumination
The outgoing of light.
Wherein, the incident optical system further includes small set on first between laser 201 and optical reflector 403
Mirror 301, the first lenslet 301 is for the diverging blue excitation light that laser 201 issues to be focused.Setting makes to excite in this way
Light focuses on Wavelength converter 901 via incident optical system, and laser can reduce in transmission process in optical reflection
The sectional area of the blue excitation light beam of 403 position of device, and then reduce the area of optical reflector 403.
In addition, being equipped with the second lenslet 501, incident optical system between optical reflector 403 and Wavelength converter 901
And outgoing optical system includes second lenslet 501.Setting is convenient for blue excitation light focusing on wavelength convert in this way
On device 901, in order to which Wavelength converter 901 absorbs the stimulated light and unabsorbed excitation photosynthesis that part exciting light is formed
The illumination light of high-energy density.
Wherein, outgoing optical system further includes being set to the outermost luminous lens 601 of light exit direction；Wavelength converter
901 are located in the combined focal of luminous lens 601 and the second lenslet 501；Stimulated light and be not wavelength-converted device 901 absorption
Exciting light collimated via the second lenslet 501 and luminous lens 601 after form subparallel illumination light and be emitted.It can be according to using
Demand selects different 601 size of luminous lens and parameter to arrange in pairs or groups, and to convert the irradiating angle of the optical system, realizes remote
The closely demand of variation.
In addition, laser 201 is set on primary optic axis 701, the emergent light axis of illumination light is the second optical axis 702, and wavelength turns
Changing device 901 is located on the second optical axis 702；The setting of vertical second optical axis 702 of primary optic axis 701, and primary optic axis 701 and second
The optical reflector 403 is arranged in 702 intersection location of optical axis.Through optical reflector 403 deflection after blue excitation light optical axis with
The emergent light axis of illumination light is overlapped, but the direction of propagation is opposite；Setting is so where the blue excitation light that laser 201 issues in this way
Optical axis is vertical with the emergent light axis of illumination light, the application risk that can prevent blue excitation light from directly projecting, and then prevents laser
The contingency that flashlight uses.
Wherein, 403 mirror-reflection area of optical reflector is greater than the sectional area of incident blue excitation light beam, and optical reflection
403 mirror-reflection area of device is less than the illumination being emitted after the second lenslet 501 in the projected area on vertical second optical axis 702
Light beam on 402 position sectional area of the second optical reflector 1/3, and less than 501 diameter maximum sectional area of the second lenslet
1/2.Optical reflector 403, which is arranged on the second optical axis 702, to block the illumination light of outgoing, so needing meeting
The area of optical reflector 403 is reduced in the premise of incident blue excitation light, as far as possible to increase the outgoing efficiency of illumination light.
In the present embodiment, Wavelength converter 901 is yellow phosphorus phosphor sheet.Yellow phosphorus fluorescent powder is by part excitation shape
At stimulated light.
In the present embodiment, the laser 201 is that can launch the semiconductor laser device of blue excitation light and be set to the
On one optical axis 701, the exciting light that laser 201 is given off is focused along primary optic axis 701 through the first lenslet 301, so
Afterwards primary optic axis 701 and 702 intersection location of the second optical axis setting optical reflector 403 come make focus after blue excitation light send out
Raw deflection, the emergent light optical axis coincidence of the blue excitation light optical axis after deflecting and illumination light, and the direction of propagation is opposite.This
Sample, by the deflection optical path of optical reflector 403, blue excitation light is directed into (the yellow phosphorus fluorescent powder of Wavelength converter 901
Piece) on, Wavelength converter 901 forms stimulated light after being excited by part blue excitation light, stimulated light and is not wavelength-converted dress
It sets and forms subparallel illumination light after the exciting lights of 901 absorptions is collimated via the second lenslet 501 and luminous lens 601 and be emitted,
To achieve the effect that white laser flashlight 100 realizes high efficiency long distance illumination.
The present embodiment additionally provides a kind of laser flashlight for folding more optical axises, including cylinder and cylinder head, is equipped in cylinder head
Said lighting system；Be equipped in cylinder and provide the battery of electric energy for laser, cylinder be equipped with for control laser open with
The switch of closing.The setting of switch is convenient for the opening and closing flashlight.
Embodiment 2
Another laser flashlight lighting system for folding more optical axises is present embodiments provided, as shown in Fig. 2, including embodiment
Incident optical system described in 1, Wavelength converter 901 and outgoing optical system；Itself the difference from embodiment 1 is that: it is incident
Optical system is multiple and is arranged around Wavelength converter 901；And 403 shape of optical reflector in all incident optical systems
At overall structure and Wavelength converter 901 between be equipped with the second lenslet 501, incident optical system and outgoing optical system
It include second lenslet 501.
The present embodiment can or overlength distance remote for realizing high efficiency illumination, while reducing using high power laser skill
The risk of art, and flashlight is small in size.
In the prior art in order to realize overlength distance illuminate, need to be coupled to using multiple lasers single beam outgoing,
As shown in figure 3, illumination light is obtained as Multiplexing apparatus usually using dichroscope 2001 at this time, in the plating of dichroscope 2001
Design is directed to the reflectance coating of blue excitation light on film, and the reflectance coating is high to yellow light thoroughly, blue excitation light be incident to two to
When in Look mirror 2001, first part's blue excitation light, which is reflected, to be directed on Wavelength converter 901, second part blue excitation
Light is directed to formation Lambertian secondary light source on Lambertian scatterer by the transmission of dichroscope 2001.In this way in Wavelength converter apparatus
The Lambertian secondary light source of stimulated radiation goes out on 901 yellow light and formation light combination again on dichroscope 2001, required for formation
Illumination light, this scheme due to need dichroscope 2001 carry out light splitting light combination effect, be equivalent to two optical systems, can increase
The corresponding design volume of big product, it has not been convenient to carry, lose the most important significance of portability, and the present embodiment have using two to
While Look mirror couples the light of multiple lasers as Multiplexing apparatus to realize overlength distance illuminating effect, can solve just two to
Caused small product size big problem when Look mirror is as Multiplexing apparatus.
Obviously, the above embodiment of the present invention is only intended to clearly illustrate technical solution of the present invention example, and
It is not the restriction to a specific embodiment of the invention.It is all made within the spirit and principle of claims of the present invention
Any modifications, equivalent replacements, and improvements etc. should all be comprised within the scope of protection of the claims of the present invention.
Claims (10)
1. a kind of laser flashlight lighting system for folding more optical axises, which is characterized in that filled including incident optical system, wavelength convert
Set (901) and outgoing optical system；Incident optical system includes laser (201) and an optical reflector (403), laser
(201) for issuing exciting light, an optical reflector (403) is used to carry out primary event to exciting light with folded light beam and to draw
Folded exciting light is led to Wavelength converter (901)；Wavelength converter (901) for absorb part exciting light formed by
Laser；Stimulated light and the exciting light for not being wavelength-converted device (901) absorption form illumination light by outgoing optical system exit；Swash
Optical axis where the exciting light that light device (201) issues and the emergent light axis of illumination light are not overlapped.
2. a kind of laser flashlight lighting system for folding more optical axises according to claim 1, which is characterized in that the optics
Reflector (403) is equipped with the high inverse medium film for reflection blue exciting light for the inclined-plane of right-angle prism and right-angle prism.
3. a kind of laser flashlight lighting system for folding more optical axises according to claim 1, which is characterized in that the illumination
System further includes optical glass plain film (1001) or the diffusion sheet with scattering light function, and optical reflector (403) is set to light
It learns on glass planar sheets (1001) or diffusion sheet with scattering light function.
4. a kind of laser flashlight lighting system for folding more optical axises according to claim 1, which is characterized in that the incidence
Optical system further includes set on the first lenslet (301) between laser (201) and optical reflector (403), and first is small
Mirror (301) is for the diverging blue excitation light that laser (201) issue to be focused.
5. a kind of laser flashlight lighting system for folding more optical axises according to claim 4, which is characterized in that optical reflection
The second lenslet (501) are equipped between device (403) and Wavelength converter (901), incident optical system and outgoing optical system
It include second lenslet (501).
6. a kind of laser flashlight lighting system for folding more optical axises according to claim 5, which is characterized in that outgoing optics
System further includes being set to the outermost luminous lens of light exit direction (601)；Wavelength converter (901) is located at luminous lens
(601) and in the combined focal of the second lenslet (501)；Stimulated light and the exciting light for not being wavelength-converted device (901) absorption
It is emitted via subparallel illumination light is formed after the second lenslet (501) and luminous lens (601) collimation.
7. a kind of laser flashlight lighting system for folding more optical axises according to claim 5, which is characterized in that laser
(201) it is set on primary optic axis (701), the emergent light axis of illumination light is the second optical axis (702), Wavelength converter (901) position
In on the second optical axis (702)；Vertical second optical axis (702) setting of primary optic axis (701), and primary optic axis (701) and the second light
The optical reflector (403) is arranged in axis (702) intersection location.
8. a kind of laser flashlight lighting system for folding more optical axises according to claim 6, which is characterized in that optical reflection
Device (403) mirror-reflection area is greater than the sectional area of incident blue excitation light beam, and optical reflector (403) mirror-reflection area
It is anti-in optics that projected area on vertical second optical axis (702) is less than the illuminating bundle being emitted after the second lenslet (501)
1/3 on the sectional area of emitter (403) position, and less than the 1/2 of the second lenslet (501) diameter maximum sectional area.
9. a kind of laser flashlight lighting system for folding more optical axises, which is characterized in that including described in any one of claim 1 to 8
Incident optical system, Wavelength converter (901) and outgoing optical system；Incident optical system is multiple and turns around wavelength
Changing device (901) setting；And the overall structure and wavelength convert of optical reflector (403) formation in all incident optical systems
The second lenslet (501) are equipped between device (901), incident optical system and outgoing optical system include described second small
Mirror (501).
10. a kind of laser flashlight for folding more optical axises, including cylinder and cylinder head, which is characterized in that wanted in cylinder head equipped with right
Seek 1 to 9 described in any item lighting systems；It is equipped in cylinder and provides the battery of electric energy for laser, cylinder is equipped with for controlling
The switch that laser processed opens and closes.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910511575.2A CN110107827A (en) | 2019-06-13 | 2019-06-13 | A kind of laser flashlight lighting system folding more optical axises and laser flashlight |
| PCT/CN2019/125980 WO2020248561A1 (en) | 2019-06-13 | 2019-12-17 | Laser flashlight lighting system and laser flashlight having folded multi-optical axes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910511575.2A CN110107827A (en) | 2019-06-13 | 2019-06-13 | A kind of laser flashlight lighting system folding more optical axises and laser flashlight |
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| CN110107827A true CN110107827A (en) | 2019-08-09 |
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| CN201910511575.2A Pending CN110107827A (en) | 2019-06-13 | 2019-06-13 | A kind of laser flashlight lighting system folding more optical axises and laser flashlight |
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| WO (1) | WO2020248561A1 (en) |
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| CN110715192A (en) * | 2019-11-27 | 2020-01-21 | 广州市超亮电子科技有限公司 | Device for converting blue laser into white light point light source |
| WO2020248561A1 (en) * | 2019-06-13 | 2020-12-17 | 广州光联电子科技有限公司 | Laser flashlight lighting system and laser flashlight having folded multi-optical axes |
| WO2021115238A1 (en) * | 2019-12-09 | 2021-06-17 | 深圳市中光工业技术研究院 | Flashlight |
| CN114761856A (en) * | 2019-11-29 | 2022-07-15 | 株式会社理光 | Light source optical system, light source device and image display device |
| US12130544B2 (en) | 2019-11-29 | 2024-10-29 | Ricoh Company, Ltd. | Light-source optical system, light-source device, and image display apparatus |
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Also Published As
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| WO2020248561A1 (en) | 2020-12-17 |
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