CN109099330A - A kind of very-long-range LED flashlight - Google Patents
A kind of very-long-range LED flashlight Download PDFInfo
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- CN109099330A CN109099330A CN201810942023.2A CN201810942023A CN109099330A CN 109099330 A CN109099330 A CN 109099330A CN 201810942023 A CN201810942023 A CN 201810942023A CN 109099330 A CN109099330 A CN 109099330A
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- light source
- long
- reflector
- light
- range
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Classifications
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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
-
- 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
- F21V13/04—Combinations of only two kinds of elements the elements being 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
- F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
- F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
- F21V17/12—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by screwing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
- F21V23/003—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array
-
- 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
- F21V31/00—Gas-tight or water-tight arrangements
-
- 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]
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The present invention relates to a kind of very-long-range LED flashlights.The lens on lamps and lanterns generally only consider the homogeneity question of the case where center optically focused and hot spot at present, and the loss of light is increased due to material and thickness, and light intensity decreasing is difficult to realize remote illumination.The present invention relates to a kind of very-long-range LED flashlights, compound lens includes fixed edge and light-emitting surface, and light-emitting surface includes transparent surface and caustic surface, and caustic surface uses the form of Fresnel Lenses, sideline be located at light source and light rim of a cup along on, compound lens is using the preparation of PMMA material；Reflector is paraboloid, with lens sizes and light source unique match, is inside coated with one layer of reflective membrane.Center focusing light effect is not only increased using integrated optical system provided by the present invention, realize collimated illumination, and help to reduce light loss, realize very-long-range irradiation, power supply deficiency forewarning function may be implemented using low pressure alarming module, prompt user is facilitated to charge as early as possible or with good backup power source.
Description
Technical field
The present invention relates to lighting area more particularly to a kind of very-long-range LED flashlights.
Background technique
LED possesses the title of " green illumination light source ", as light source, with small in size, power consumption as forth generation electric light source
It is small, fever it is small, the service life is long the advantages that.Since the preparation of large power white light LED light source is restricted on heat dissipation, cost problem,
Therefore large power white light LED is applied only to special lighting field, what it is in general illumination field application is mostly small-power white light LEDs,
But in order to which the illuminating effect that has reached mostly is realized in combination, it is complicated, at high cost etc. that this has resulted in Optical System Design
Problem.
In current lighting area, the seldom of remote illumination system is realized using LED light source, and irradiation distance is not remote enough,
Optical system structure is complicated.Collimated illumination can be realized using reflector or lens, but general reflector cannot achieve preferably
Spotlight effect increases the case where although lens that lens are solved this problem in that, but are used on lamps and lanterns generally only consider center optically focused
With the homogeneity question of hot spot, and the loss of light is increased due to material and thickness, light intensity decreasing is difficult to realize long-range
Illumination；LASER Excited Fluorescence powder can realize remote illumination, and have good directionality, but due to being shone directly into laser
A large amount of heat can be generated when phosphor surface rapidly, fluorescent powder is caused to be decayed rapidly, greatly shortens the service life of fluorescent powder,
To reduce the transformation efficiency of white light.
Most of flashlights do not have water-proof function, and be easy to cause and forget since electric quantity of power supply is unknown in use process
Band backup power source, causes unnecessary trouble.
Summary of the invention
(1) the technical issues of solving
The purpose of the present invention is overcome the deficiencies in the prior art, and the present invention provides a kind of very-long-range LED flashlights, wherein
Compound lens not only increases center focusing light effect by cooperation reflector after calculating in integrated optical system, uniform light spots,
And help to reduce light loss, realize very-long-range irradiation, compound lens uses the thin lens of PMMA material, and it is non-breakable, at
This is low；For light source of the same race by adjusting the expection brightness and the range that can be obtained in range, there is fixation for different light sources
Optical system it is matched, reach optimal illumination effect.Power supply deficiency early warning may be implemented using low pressure alarming module
Effect facilitates prompt user to charge as early as possible or with good backup power source.
(2) technical solution
Technical solution of the present invention: a kind of very-long-range LED flashlight, including lamp cap, stack shell and tailstock；Wherein: the cylinder
Body both ends are threadedly coupled with lamp cap and tailstock respectively, and secondary solid by the first card slot band and the progress of the second card slot band respectively
Fixed, lamp cap side is equipped with eyeglass, and reflector is equipped with inside lamp cap, and reflector inwall surface is equipped with reflective membrane, and compound lens passes through
Card slot is fixedly mounted in reflector, and power supply is equipped in stack shell, LED light source is equipped at stack shell variable diameter, sets against LED light source side
There is radiating module, stack shell outer wall is equipped with switch, and switch outer sheath is equipped with water proof rubber film, is equipped with fixed disc in tailstock, Gu
Determine plectane and be equipped with fire prevention vibration damping cotton close to stack shell side, the other side is fixedly installed with low pressure alarming module, in low pressure alarming module
Equipped with low pressure indicator light, tailstock is threadedly coupled far from stack shell one end with hood, and hood and tailstock junction are equipped with waterproof washer, electricity
Source and LED light source and switch are electrically connected, while being also electrically connected with low pressure alarming module.
Preferably, LED light source is the high-power vertical structure white light LEDs of ceramic package, makes light by primary optical design
Source reaches the expected angle of divergence.
Preferably, LED light source, reflector and compound lens being integrally formed optical system, wherein compound lens includes solid
Deckle and light-emitting surface, light-emitting surface include transparent surface and caustic surface, and caustic surface uses the form of Fresnel Lenses, and sideline is located at light source
On along light rim of a cup, compound lens is prepared using PMMA material；Reflector is paraboloid, with lens sizes and light source
Unique match, is inside coated with one layer of reflective membrane, and reflector and compound lens are fixed by card slot.
Preferably, light cup curvature formulations are (x in integrated optical system2+y2)=4pz, the optically focused radius surface r ' on lens
=(x+m) * r/ (x+h), wherein r is reflector port radius, and m is the distance between LED light source and compound lens, and h is LED light
Source is to reflective rim of a cup distance.In conjunction with the angle of divergence of light source after primary optical design, design principle optimization meets through the invention
The optical system of expected results.
Preferably, fixed edge with a thickness of 0.5mm, light-emitting surface includes transparent surface and caustic surface, the ring of caustic surface away from for
1mm。
Preferably, low pressure alarming module includes voltage-stabiliser tube, pressure limiting resistance, current-limiting resistance, triode, voltage-stabiliser tube, pressure limiting electricity
Resistance and electric power generating composition circuit, triode and current-limiting resistance are connected and pressure limiting resistor coupled in parallel.
Preferably, voltage-stabiliser tube is using 1N4739a, and triode is using S8050.
Preferably, stack shell surface is provided with antiskid thread.
(3) beneficial effect
The present invention has the advantages that
1, light source uses the high-power vertical structure white light LEDs of ceramic package, there is good thermal diffusivity, and resistance to high current is driven
Dynamic, high reliablity not only extends the service life of light source, and solve traditional low-power LED combination it is more as quantity in light source,
The problems such as Optical System Design is complicated.After primary optical design, its angle of divergence can be reduced.
2, integrated optical system and light source unique match, reach collimated illumination, beam divergence angle 1.5 degree with
It is interior, and realize optimal illuminating effect, compound lens cooperation reflector not only increases center focusing light effect, and helps to subtract
Few light loss realizes very-long-range irradiation, non-breakable using the thin lens of PMMA material, at low cost.
3, power supply deficiency forewarning function may be implemented using low pressure alarming module, prompt user is facilitated to charge as early as possible or band
Good backup power source.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is that source light of the invention emits figure.
Fig. 3 is low pressure alarming modular unit circuit diagram of the invention.
Fig. 4 is compound lens front view of the invention.
Fig. 5 is compound lens side view of the invention.
Appended drawing reference: eyeglass 1, reflector 2, compound lens 3, fixed edge 31, transparent surface 32, caustic surface 33, card slot 4, lamp
First 51, stack shell 52, tailstock 53, reflective membrane 6, radiating module 7, LED light source 8, power supply 9, water proof rubber film 10, switch 11, fire prevention
Vibration damping cotton 12, low pressure alarming module 13, voltage-stabiliser tube 131, pressure limiting resistance 132, current-limiting resistance 133, triode 134, low pressure instruction
Lamp 14, hood 15, waterproof washer 16, fixed disc 17, the first card slot band 18, the second card slot band 19.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
In order to reach the purpose of the present invention, as shown in Figure 1, a kind of very-long-range LED flashlight, including lamp cap 51, stack shell 52
With tailstock 53；Wherein: 52 both ends of stack shell are threadedly coupled with lamp cap 51 and tailstock 53 respectively, and pass through the first card slot item respectively
Band 18 and the second card slot band 19 carry out secondary fixation, and 51 side of lamp cap is equipped with eyeglass 1, is equipped with reflector 2 inside lamp cap 51, instead
2 inner wall surface of light cup is equipped with reflective membrane 6, and compound lens 3 is fixedly mounted in reflector 2 by card slot 4, and electricity is equipped in stack shell 52
Source 9 is equipped with LED light source 8 at 52 variable diameter of stack shell, is equipped with radiating module 7 against 8 side of LED light source, 52 outer wall of stack shell is equipped with and opens
11 are closed, 11 outer sheath of switch is equipped with water proof rubber film 10, is equipped with fixed disc 17 in tailstock 53, fixed disc 17 is close to stack shell 52
Side is equipped with fire prevention vibration damping cotton 12, and the other side is fixedly installed with low pressure alarming module 13, and low pressure alarming module 13 is equipped with low pressure
Indicator light 14, tailstock 53 are threadedly coupled far from 52 one end of stack shell with hood 15, and hood 15 and 53 junction of tailstock are equipped with collision mat
Circle 16, power supply 9 and LED light source 8 and switch 11 are electrically connected, while being also electrically connected with low pressure alarming module 13.
Wherein, low pressure alarming module 13 is as shown in figure 3, a kind of very-long-range LED flashlight, in which: low pressure alarming module 13
Including voltage-stabiliser tube 131, pressure limiting resistance 132, current-limiting resistance 133, triode 134, voltage-stabiliser tube 131, pressure limiting resistance 132 and power supply structure
At circuit, triode 134 and current-limiting resistance 133 are connected in parallel with pressure limiting resistance 132, and low pressure warning function, pressure stabilizing may be implemented
Pipe 131 is using 1N4739a, and convenient for replacement, triode 134 helps to provide working performance, reduce using S8050
Production cost.
As shown in Figure 4 and Figure 5, in which: compound lens 3 include fixed edge 31 and light-emitting surface, fixed edge 31 with a thickness of
0.5mm, light-emitting surface include transparent surface 32 and caustic surface 33, and the interannular of caustic surface 33 can effectively improve the polymerization of light away from for 1mm
Very-long-range irradiation is realized in effect.
In the above-described embodiment, when experiment, the length of lamp cap is 0-70mm, LED light source 8 and compound lens 3 apart from for
0-70mm is unfolded in the above range comprising the result data in following table.
Table 1:
| The light source angle of divergence (°) | Light cup focal length (mm) | The focal length of lens (mm) | Range (m) |
| 60 | 5 | 67 | 769 |
| 70 | 5 | 67 | 694 |
| 80 | 5 | 67 | 620 |
| 90 | 5 | 67 | 564 |
| 100 | 5 | 67 | 520 |
| 110 | 5 | 67 | 482 |
| 120 | 5 | 67 | 456 |
As it can be seen from table 1 light source need to be mutually matched with component part each in optical system could improve beam utilization
And collimation efficiency, obtain best very-long-range radiation response.
By embodiments above as can be seen that the optical system that the present invention designs, compared to existing lighting system, more
Collimated illumination can be reached, light angle is smaller, and illumination distances are farther.
Optimize optical system for different light emitting angle light sources according to the design principle in above embodiments, can obtain
Optimized remote radiation response.
Table 2:
Table 2 gives some embodiments, in the embodiment, for different light sources and corresponding optical system, Yong Huke
According to the difference of light source and demand, chooses and make corresponding optical system.
Using the above preferred scheme, as shown in Figure 1,3 being integrally formed light of LED light source 8, reflector 2 and compound lens
System, three center is conllinear, and LED light source 8 is also the focus i.e. integration of reflector 2 in the focus of compound lens 3
The focus of optical system.
In order to advanced optimize implementation result of the invention, LED light source 8 is the high-power vertical structure white light of ceramic package
LED, small in size, little power consumption improve the working time, so that light source is reached the expected angle of divergence by primary optical design.
Using the above preferred scheme, compound lens 3 includes fixed edge 31 and light-emitting surface, and light-emitting surface includes 32 He of transparent surface
Caustic surface 33, caustic surface (33) radius r '=(x+m) * r/ (x+h), wherein r be 2 port radius of reflector, m be LED light source 8 with
The distance between compound lens 3, h are that LED light source 8 arrives 2 mouthfuls of distances of reflector, and caustic surface 33 uses the form of Fresnel Lenses,
Sideline be located at LED light source 8 with 2 mouthfuls of reflector along on.
In order to advanced optimize implementation result of the invention, compound lens 3 is prepared using PMMA material, non-breakable, at
This is low.
Using the above preferred scheme, reflector 2 is paraboloid, is inside coated with one layer of reflective membrane.
In order to advanced optimize implementation result of the invention, reflector 2 and 8 phase of 3 size of compound lens and LED light source
Match, reflector 2 and compound lens 3 are fixed by card slot 4, help to improve center focusing light effect, reduce light loss.
Using the above preferred scheme, the light that LED light source 8 issues can all be received, to improve the optical system
The beam utilization of system.8 beam divergence angle of LED light source can pass through primary light according to the diameter value of caustic surface 33 in compound lens 3
Design is learned to obtain.LED light source 8, reflector 2 and 3 three center of compound lens are collinearly placed.The most of light of LED light source 8 can lead to
33 Fresnel Lenses part of the caustic surface collimation for crossing compound lens 3 projects, remaining light is by 3 transparent surface 32 of compound lens and instead
Light cup 2 reflexes to collimation and projects, which realizes light all reception and collimated illumination, greatly improves long-range irradiation
Effect.
In order to advanced optimize implementation result of the invention, the fixed edge 31 of compound lens 3 with a thickness of 0.5mm, light out
Face includes transparent surface 32 and caustic surface 33, and the interannular of caustic surface 33 can effectively improve the polymerization of light, realize away from for 1mm
Very-long-range irradiation.
Large power white light LED light source has certain requirement to power supply, is that flashlight is kept in order to which people's night trip is convenient
Optimal illumination effect increases low battery alarm system, can prompt user, it is ensured that the supply of power supply.
The working principle of mesolow alarm of the present invention: in use, by 53 3 lamp cap 51, stack shell 52, tail-hood part spiral shells
Rotation connects, and compound lens 3 is fixed in reflector 2 by card slot 4, installs the first card slot band 18, the second card slot item
Band 19 is used for secondary fixation, presses switch 11,53 internal low-voltage indicator light 14 of observation tailstock whether light yellow, if do not worked, explanation
Power supply is sufficient, if lighted, illustrates power supply deficiency, need to charge in time and supplement power supply or with good backup power source, structure of the invention
Simply, strong applicability.
In order to advanced optimize implementation result of the invention, zoom can also be passed through between LED light source 8 and reflector 2
Mode adjusts LED light source 8 at a distance from compound lens 3 in the case where optical system is constant, realizes corresponding in best range
Adjusting.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (9)
1. a kind of very-long-range LED flashlight, comprising: lamp cap (51), stack shell (52) and tailstock (53), it is characterised in that: the cylinder
Body (52) both ends are threadedly coupled with lamp cap (51) and tailstock (53) respectively, and pass through the first card slot band (18) and the second card respectively
Groove bar band (19) carries out secondary fixation, and lamp cap (51) side is equipped with eyeglass (1), is equipped with reflector (2) inside lamp cap (51), reflective
Cup (2) inner wall surface is equipped with reflective membrane (6), and compound lens (3) is fixedly mounted in reflector (2) by card slot (4), stack shell
(52) power supply (9) are equipped in, are equipped with LED light source (8) at stack shell (52) variable diameter, LED light source (8) and reflector (2) and are combined
Mirror (3) size matches, and is equipped with radiating module (7) against LED light source (8) side, and stack shell (52) outer wall is equipped with switch (11),
It switchs (11) outer sheath and is equipped with water proof rubber film (10), be equipped with fixed disc (17) in tailstock (53), fixed disc (17) is close
Stack shell (52) side is equipped with fire prevention vibration damping cotton (12), and the other side is fixedly installed with low pressure alarming module (13), low pressure alarming module
(13) low pressure indicator light (14) are equipped with, tailstock (53) is threadedly coupled far from stack shell (52) one end with hood (15), hood (15)
Waterproof washer (16) are equipped with tailstock (53) junction, power supply (9) and LED light source (8) and switch (11) are electrically connected, simultaneously also
It is electrically connected with low pressure alarming module (13).
2. a kind of very-long-range LED flashlight according to claim 1, it is characterised in that: the LED light source (8) is ceramics
The high-power vertical structure white light LEDs of encapsulation.
3. a kind of very-long-range LED flashlight according to claim 1, it is characterised in that: LED light source (8), reflector (2)
With compound lens (3) being integrally formed optical system, compound lens (3) includes fixed edge (31) and light-emitting surface, light-emitting surface include
Transparent surface (32) and caustic surface (33), caustic surface (33) radius r '=(x+m) * r/ (x+h), wherein r is reflector (2) mouth half
Diameter, m are the distance between LED light source (8) and compound lens (3), and h is that LED light source (8) arrive reflector (2) mouth distance, caustic surface
(33) use the form of Fresnel Lenses, sideline be located at LED light source (8) and reflector (2) mouth along the line on.
4. a kind of very-long-range LED flashlight according to claim 1, it is characterised in that: compound lens (3) uses PMMA material
Material preparation.
5. a kind of very-long-range LED flashlight according to claim 1, it is characterised in that: reflector (2) is oval parabolic
Face.
6. a kind of very-long-range LED flashlight according to claim 1, it is characterised in that: LED light source (8) and compound lens
(3) distance range is 0-70mm.
7. a kind of very-long-range LED flashlight according to claim 3, it is characterised in that: the thickness of the fixed edge (31)
For 0.5mm, the ring of caustic surface (33) is away from for 1mm on light-emitting surface.
8. a kind of very-long-range LED flashlight according to claim 1, it is characterised in that: the low pressure alarming module (13)
Including voltage-stabiliser tube (131), pressure limiting resistance (132), current-limiting resistance (133), triode (134), voltage-stabiliser tube (131), pressure limiting resistance
(132) and electric power generating composition circuit, triode (134) and current-limiting resistance (133) are connected in parallel with pressure limiting resistance (132).
9. a kind of very-long-range LED flashlight according to claim 8, it is characterised in that: what the voltage-stabiliser tube (131) used
It is 1N4739a, triode (134) is using S8050.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810942023.2A CN109099330B (en) | 2018-08-17 | 2018-08-17 | Ultra-remote LED flashlight |
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|---|---|---|---|
| CN201810942023.2A CN109099330B (en) | 2018-08-17 | 2018-08-17 | Ultra-remote LED flashlight |
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| CN109099330B CN109099330B (en) | 2023-08-18 |
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| CN109099330B (en) | 2023-08-18 |
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