CN202252884U

CN202252884U - Automatic dimming flashlight

Info

Publication number: CN202252884U
Application number: CN 201120293725
Authority: CN
Inventors: 杨文浩
Original assignee: Dongguan Kam Tong Metal & Electric Co Ltd
Current assignee: Dongguan Kam Tong Metal & Electric Co Ltd
Priority date: 2011-08-12
Filing date: 2011-08-12
Publication date: 2012-05-30
Anticipated expiration: 2021-08-12
Also published as: WO2013023495A1

Abstract

The utility model discloses an automatic dimming flashlight, which is provided with a light-controlled dimming device. The light-controlled dimming device comprises a circuit board, a light sensitive element and an annular installing body, and the installing body is connected on a flashlight body. The circuit board is arranged in the flashlight body and is electrically connected with a light emitting assembly and a power supply, and the light sensitive element is inlaid on the installing body and is electrically connected with the circuit board. Thus, in the using process of the flashlight, after the light-controlled dimming device is started, the light sensitive element can automatically control the change of brightness and darkness of the light emitting assembly of the flashlight according to the change of strength and weakness of ambient light. Namely, when the ambient light is strong, the light of the flashlight can be controlled to be weak. When the ambient light is weak, the light of the flashlight can be controlled to be bright. Thus, the purpose that the brightness of light of the flashlight is regulated in real time is achieved. The flashlight has good using precision and saves energy.

Description

Formula flashlight with an automatic light meter

Technical field

The utility model relates to a kind of removable lighting, relate in particular to a kind of can be according to the flashlight strong and weak with an automatic light meter of ambient light.

Background technology

Flashlight is a kind of typical hand-held mobile electron illuminations; A typical flashlight has one via battery powered bulb and focusing mirror; And there is confession to hand the handle type shell of usefulness; Flashlight quite simply designs because of it, and is easy to use and carry performance, become one of requisite portable lighting equipment in people's daily life.

The most basic assembly of flashlight mainly comprises luminescence component, switch module, power supply and shell; Luminescence component is fixed in the shell of flashlight and is positioned at front end; Switch module and power supply are arranged in the shell and are positioned at the rear end; The luminescence component that is fixed in the shell of flashlight electrically connects with the flashlight power supply, and the switch module that is built in the cylindrical shell of flashlight is controlled being switched on or switched off of luminescence component and flashlight power supply; Original flashlight in use, its light that sends can not be regulated, like this; No matter under any lightness environment; Open flashlight and all have only a kind of light intensity, the light intensity of flashlight can't be regulated according to the variation of surrounding environment, has caused the waste of resource like this; The continuous enhancing of Along with people's energy-conserving and environment-protective consciousness; A kind of can arising at the historic moment, the flashlight of this tunable optical according to the energy-saving flashlight that environment bright is carried out brightness regulation be according to required brightness artificial pre-set a plurality of different brightness threshold values, during adjusting only between the brightness that sets, to switch; And can not carry out brightness regulation according to the brightness real-time and precise ground of environment of living in; Therefore, in use energy-conservation inadequately, and the precision of using is also not high enough.

Therefore, but be necessary to provide a kind of flashlight of follow-on automatically adjust light strength to solve the deficiency of above-mentioned prior art.

The utility model content

But the purpose of the utility model is to provide a kind of flashlight of automatically adjust light strength, and it is in use more energy-conservation.

For realizing above-mentioned purpose; The technical scheme of the utility model is: a kind of formula flashlight with an automatic light meter is provided, and it comprises tube head, cylindrical shell, tail-hood, power supply and luminescence component, and said luminescence component is arranged at the front end of said cylindrical shell; Said tube head is connected in the front end of said cylindrical shell and covers at the outside of said luminescence component; Said on-chip power electrically connects in said cylindrical shell and with said luminescence component, and said bonnet is connected in the rear end of said cylindrical shell, and it also comprises light-operated light modulating device; Said light-operated light modulating device comprises the fixing body of circuit board, light-sensitive element and ring-type; Said fixing body is connected on the said cylindrical shell, and said circuit board is built in the said cylindrical shell and with said luminescence component and said power supply and electrically connects, and said light-sensitive element is embedded on the said fixing body; And said light-sensitive element and said circuit board electrically connect, and said light-sensitive element is controlled the light and shade of said luminescence component according to the power of the light that receives.

Preferably; Said light-sensitive element comprises a plurality of, and said light-sensitive element is radially evenly installed along said fixing body, and the footpath that a plurality of light-sensitive elements evenly are installed on fixing body makes progress; All light-sensitive elements are from all angles sensitization; And when the summation of the resulting light intensity of all light-sensitive elements reached pre-set threshold value, the luminescence component light and shade that light-sensitive element can be controlled flashlight changed, and makes flashlight have good service precision.

Preferably, said light-sensitive element is photo resistance, adopt the photo resistance design principle simple, and production cost is low.

Preferably, said light-operated light modulating device also comprises transparent outer cover, and said transparent outer cover covers at outside the said light-sensitive element, and do not influence light-sensitive element receives extraneous light intensity to transparent outer cover on the one hand, on the other hand light-sensitive element is played a very good protection.

Preferably; Said formula flashlight with an automatic light meter also comprises a bracing frame, and support frame as described above comprises support body and connector, and said support body comprises holder, supporting seat and at least three feets; Said feet is installed on the lower end of said supporting seat, and said holder is fixed in the upper end of said supporting seat; Said connector comprises Connection Block and obvolvent mechanism; Said obvolvent mechanism comprises sleeve and the fastening tube that all is hollow structure; One week of the right-hand member of said sleeve axially offers some grooves along said sleeve; Form stay between the adjacent two said grooves, the left end of said fastening tube is outside the right-hand member that is placed in said sleeve of screw-threaded engagement, and the right-hand member barrel dliameter of said fastening tube progressively reduces to form conical inboard wall along the direction that said sleeve penetrates said fastening tube; Said conical inboard wall pushes contraction to the stay that progressively penetrates in it; The left end of said sleeve protrudes out brace, and said brace is articulated on the said Connection Block, and said Connection Block is plugged in the said holder versatilely.

Preferably; Said Connection Block comprises base and two contiguous blocks; Two said contiguous blocks are oppositely arranged and the lower end all is installed on the said base, form the swivelling chute that supplies said brace to be inserted and rotated between the two said contiguous blocks, are provided with connecting axle in the said swivelling chute; Said brace inserts in the said swivelling chute and is articulated on the said connecting axle; Therefore, thereby brace rotates around connecting axle and makes the relative Connection Block of sleeve rotate, and then adjustment is installed on flashlight on the sleeve with respect to the angle of Connection Block.

Preferably; Offer the connecting hole that supplies said connecting axle to pass on the said brace, along said connecting hole radially also be provided with some locating slots, be provided with in the said swivelling chute that corresponding to be flexible location protruding with said locating slot; Said connecting axle passes said connecting hole; Contact in the said locating slot and said location is protruding, brace is around the connecting axle rotation and after making the sleeve adjusting position, thereby protruding the contacting in the different locating slots in location located sleeve.

Preferably; Said location convex closure is drawn together projection and spring; Offer the accepting groove of accommodating said spring on the said Connection Block, said accepting groove is communicated with said swivelling chute, and said spring is contained in the said accepting groove; One end of said projection stretches in the said accepting groove and with said spring and conflicts, and the other end of said projection stretches in the said accepting groove and contacts in the said locating slot.

Preferably; Said supporting seat comprise loam cake, pedestal and with the corresponding rotating shaft of said feet, offer in the said pedestal and the corresponding rotation slot of said rotating shaft, said pedestal runs through and offers the rotation hole that is communicated with said rotation slot; Said rotating shaft is articulated in the said rotation slot; Said rotating shaft has the connecting portion that extends in the said rotation hole, the passing said rotation hole and be connected of said connecting portion swing with said feet, and said loam cake is installed on the said pedestal and contacts with rotating shaft in the rotation slot; Said holder is hollow structure and is fixed in and covers on said, and said Connection Block is plugged in the hollow structure of said holder.

Preferably; Said holder and supporting seat all run through and offer the osculum that is connected, and said osculum is communicated with the hollow structure of said holder, when meeting water; Ponding in the holder is got rid of through osculum, thereby prevents in the device on the ponding entering holder device to be caused damage.

Compared with prior art, because the formula flashlight with an automatic light meter of the utility model, it has light-operated light modulating device; Said light-operated light modulating device comprises the fixing body of circuit board, light-sensitive element and ring-type, and said fixing body is connected on the said cylindrical shell, and said circuit board is built in the said cylindrical shell and with said luminescence component and said power supply and electrically connects; Said light-sensitive element is embedded on the said fixing body, and said light-sensitive element and said circuit board electrically connect, and said light-sensitive element is embedded at and makes said light-sensitive element be highlighted in outside the said fixing body on the said fixing body; Be highlighted in the outer light-sensitive element of said fixing body and just can directly contact, thereby can directly receive the external environment light intensity, therefore with extraneous; In the flashlight use, start light-operated light modulating device after, said light-sensitive element changes according to the power of surround lighting; The luminescence component light and shade that can control flashlight automatically changes; Promptly when environmental light intensity, can control the light deepening of flashlight, the light that can control flashlight when time a little less than the surround lighting brightens, and regulates the bright dark purpose of flashlight in real time to reach; Make flashlight have good service precision, and more energy-conservation.

Description of drawings

Fig. 1 is the structural representation of the utility model formula flashlight with an automatic light meter.

Fig. 2 is the structural representation of the bracing frame of the utility model formula flashlight with an automatic light meter.

Fig. 3 is the structural representation of connector among Fig. 2.

Fig. 4 is the decomposing schematic representation of Fig. 3.

Fig. 5 is the further decomposing schematic representation of Fig. 4.

Fig. 6 is the decomposing schematic representation of support body among Fig. 2.

Fig. 7 is the enlarged drawing of A part among Fig. 6.

Fig. 8 is another decomposing schematic representation of support body among Fig. 2.

Fig. 9 is the user mode sketch map of the utility model formula flashlight with an automatic light meter.

Figure 10 is another view of the utility model formula flashlight with an automatic light meter.

The specific embodiment

With reference now to accompanying drawing, describe the embodiment of the utility model, the similar elements label is represented similar elements in the accompanying drawing.

As shown in Figure 1; The utility model formula flashlight 1 with an automatic light meter comprises tube 11, cylindrical shell 12 and tail-hood 13; Front end at tube 11 is equipped with luminescence component, and said tube 11 is connected in the front end of said cylindrical shell 12 and covers at the outside of said luminescence component, in cylindrical shell 12, is provided with battery; Said battery and said luminescence component electrically connect; Said bonnet 13 is movably connected on the rear end of said cylindrical shell 12, on cylindrical shell 12, also is provided with switch 121, and switch 121 is used to control the break-make of said battery and said luminescence component; Link position place at the tube 11 of said flashlight 1 and cylindrical shell 12 also is provided with light-operated light modulating device 2; Said light-operated light modulating device 2 comprises circuit board (figure does not show), transparent outer cover 21, fixing body 22 and a plurality of light-sensitive element 23; Said fixing body 22 tapered circuluses; Offer on the fixing body 22 and said light-sensitive element 23 corresponding installing hole 22a; Said light-sensitive element 23 correspondences are embedded in the said installing hole 22a and are highlighted in outside the said fixing body 22, and said light-sensitive element 23 electrically connects with said circuit board, and said light-sensitive element 23 is embedded at through said installing hole 22a and makes said light-sensitive element 23 be highlighted in outside the said fixing body 22 on the said fixing body 22; Be highlighted in said fixing body 22 outer light-sensitive elements 23 and just can directly contact, thereby can directly receive the external environment light intensity with extraneous; Preferably; The utility model formula flashlight 1 with an automatic light meter also comprises transparent outer cover 21; The shape of said transparent outer cover 21 is corresponding with the shape of fixing body 22; It is outer and said light-sensitive element 23 covered in it that it is installed on fixing body 22, and transparent outer cover 21 and tube 11 and cylindrical shell 12 all form and be tightly connected, and transparent outer cover 21 does not influence the extraneous light intensity of light-sensitive element 23 receptions on the one hand; Also light-sensitive element 23 is played a very good protection on the other hand, and pyramidal structure makes light-sensitive element 23 sensitization more easily; In addition, said battery and luminescence component also electrically connect with said circuit board respectively, and like this, said light-sensitive element 23 can be controlled the light and shade of said luminescence component automatically according to the power of the light that receives; In the present embodiment; Light-sensitive element 23 is preferably photo resistance, adopt photo resistance to make design principle simple, and production cost is low; And the footpath that a plurality of photo resistance are installed on fixing body 22 equably upwards; All photo resistance are from all angles sensitization, and when the summation of the resulting light intensity value of all photo resistance reaches pre-set threshold value, just start light-operated light modulating device 2, make flashlight 1 have good service precision.

Be appreciated that ground; Light-sensitive element 23 is not limited to a plurality of designs in the present embodiment; Also can only design one; Can also can reach the power of the emergent light of automatic adjusting flashlight 1 in the use according to the direction of the variation of environment of living in adjustment light-sensitive element 23, the technology that this is well known to those skilled in the art.

As shown in Figure 2; Among the preferential embodiment of the utility model formula flashlight 1 with an automatic light meter, it also comprises a bracing frame, and support frame as described above comprises connector 3 and support body 4; Said connector 3 comprises Connection Block 31 and obvolvent mechanism, and said obvolvent mechanism comprises the sleeve 32 and the fastening tube 33 of equal hollow structure; Said support body 4 comprises holder 41, supporting seat 42, three feets 43 and non-slip feet 44, and said holder 41 is hollow structure and is fixed on the said supporting seat 42, and the upper end of said feet 44 is connected with said supporting seat 42; Non-slip feet 44 sockets also are fixed in the lower end of said feet 44, skid with supporting surface to prevent said feet 44, make bracing frame more stable; In the use; Connection Block 31 is plugged on the support body 4, and said obvolvent mechanism is used for fixing flashlight 1, like this; Can flashlight 1 be fixed on the support frame as described above, thereby one fixing light source be provided for people.

Preferably, said flashlight 1 is hermetically-sealed construction, uses the flashlight 1 that is hermetically-sealed construction to make and when wet weathers such as sleet, still can use out of doors, has strengthened practicality and the reliability of the utility model flashlight with precaution device; And in flashlight 1, controller can also be set, the light source that said controller is used to control flashlight 1 sends passage of scintillation light, and passage of scintillation light more can cause people's attention, thereby makes flashlight 1 can be used for sending early warning signal to the external world.

Like Fig. 3, shown in Figure 4; One week of the right-hand member of said sleeve 32 sleeves axially offers some grooves along it; Form stay 321 between the two adjacent said grooves; The position of contiguous stay 321 also is provided with screw thread 322 on sleeve 32; Offer on the inwall of the left end of fastening tube 33 with said sleeve 32 on the internal thread 331 that cooperates of screw thread 322, the left end of said fastening tube 33 is placed in outside the right-hand member of said sleeve 32, and is the screw-threaded engagement connection between the two; The right-hand member barrel dliameter of fastening tube 33 progressively reduces and forms conical inboard wall along the direction that said sleeve 32 penetrates in the fastening tube 33, and fastening 33 conical inboard wall pushes contraction to the stay 321 that progressively penetrates in it; Left end at sleeve 32 also protrudes out brace 323; Brace 323 is axially perpendicular with sleeve 32; Offer circular connecting hole 324 in the end of brace 323; On the two sides of brace 323, also offer and be equipped with some locating slots 325, said locating slot 325 is along the radially setting of connecting hole 324.

Like Fig. 4, shown in Figure 5; Said Connection Block 31 comprises base 311 and two contiguous blocks 312,313; Contiguous block 312 is oppositely arranged with contiguous block 313 and the lower end all is installed on the said base 311, and in the present embodiment, the lower end of two contiguous blocks 312,313 all is screw-threaded engagement with said base 311 and is connected; And in base 311, be provided with magnet 311a; Connector 3 just can directly be adsorbed on the metal object (for example automobile) and flashlight is fixed like this, need not use more convenient by other support member; Form the swivelling chute 316 that supplies said brace 323 to be inserted and rotated between contiguous block 312 and the contiguous block 313; In swivelling chute 316, also be provided with connecting axle 314, be provided with also in the swivelling chute 316 that corresponding to be flexible location protruding 314 with above-mentioned locating slot 325, said location protruding 315 is arranged on the said contiguous block 312,313 and protrudes out in the swivelling chute 316; In the present embodiment; Locate protruding 315 be arranged at connecting axle 314 respectively upper/lower terminal, and the location protruding 315 on two contiguous blocks 312,313 is symmetrical set, certainly; Locating protruding 315 can also be other set-up mode, the technology that this is well known to those skilled in the art; Said location protruding 315 comprises projection 315a and spring 315b; On contiguous block 312, offer the accepting groove 312a that accommodates said spring 315b; Accepting groove 312a is communicated with swivelling chute 316; Spring 315b is contained in the said accepting groove 312a, and it is interior and inconsistent with spring 312a that the end of projection 315a stretches into accepting groove 312a, and the projection 315a other end stretches in the accepting groove 316; Correspondingly, also offer the accepting groove 313a that accommodates said spring 315b on the contiguous block 313, accepting groove 313a is communicated with swivelling chute 316; Spring 315b is contained in the said accepting groove 313a; It is interior and inconsistent with spring 312a that the end of projection 315a stretches into accepting groove 313a, and the projection 315a other end stretches in the accepting groove 316, after the installation; Thereby the connecting hole 324 on the brace 323 is arranged on the connecting axle 314 both is articulated; And locate in protruding 315 locating slots 325 that contact at versatilely on the brace 323, thereby fastening tube 32 is positioned, therefore; Brace 323 is around connecting axle 314 rotations and sleeve 32 relative Connection Blocks 31 are rotated, thereby the position that is installed on the flashlight on the sleeve 32 is adjusted.

Like Fig. 6-shown in Figure 8; Said supporting seat 42 comprises loam cake 421, pedestal 422 and three and the corresponding rotating shaft 423 of said feet; Offer three and said rotating shaft 423 corresponding rotation slot 422a in the pedestal 422; Three rotation slot 422a form triangle, also penetratingly offer the rotation hole 422b that is connected with said rotation slot 422a on the pedestal 422; Said rotating shaft 423 T-shaped structures; And have the rotation section 423a that is horizontal and be connecting portion 423b longitudinally, offer screw thread on the said connecting portion 423b, said rotation section 423a is placed among the said rotation slot 422a; And connecting portion 423b extends in the said rotation hole 422b; Said connecting portion 423b can swing passes said rotation hole 422b and is threaded with said feet 44, makes simple in structure that said feet 44 connects through being threaded, and installs and removes very convenient.

Preferably; Rotation hole 422b is the mounting hole structure and the aperture enlarges from top to bottom gradually; A side edge that is said rotation hole 422b is vertical, and another side edge tilts, because the connecting portion 423b of rotating shaft 423 passes said rotation hole 422b and is connected with feet 43; Therefore when feet 43 rotates with said rotating shaft 423; The mounting hole structure of said rotation hole 422b just adapts to the expansion or the folding angle of said feet 43, makes said feet 43 cooperate compactlyer with said supporting seat 42, thereby makes whole bracing frame support more stablely.

In conjunction with Fig. 7, shown in Figure 8, said loam cake 421 is installed on the top of said pedestal 422, offers three fixing hole 421a on the loam cake 421; Said fixing hole 421a evenly distributes, and the bottom surface of said holder 41 extends the fixed leg 411 corresponding with said fixing hole 421a, and said fixed leg 411 is pegged graft and is fixed in the said fixing hole 421a; Utilize this socket connection mode of fixing hole 421a and fixed leg 411; Not only simple in structure, and make installation and dismounting fast, easy to use.

Preferably, offer osculum 421b on the loam cake 421 of supporting seat 42, offer the osculum 422c that connects with said osculum 421b on the pedestal 422; Offer osculum and also run through on the holder 41, said osculum is communicated with the hollow structure of said holder 41; When running into rainy day, the ponding in the holder 41 can be timely successively osculum, the osculum 421b of supporting seat 42, the 422c through holder 41 be discharged from, thereby prevent ponding from getting in the device on the holder 41 and device caused damage.

In conjunction with Fig. 1, Fig. 9, shown in Figure 10, to the operation principle of the utility model formula flashlight 1 with an automatic light meter and use embodiment to describe.

When using flashlight 1 separately, open flashlight 1 through switch 121 and can use, in use; When surrounding environment light changed, photo resistance 23 can be according to changing a little less than the different light intensity of controlling flashlight 1 of the light intensity that receives, for example; When ambient light when dying down by force, can cause that the resistance of photo resistance 23 increases, the voltage that causes being added in the illuminating lamp two ends of luminescence component increases; Thereby the electric current that is added in luminescence component illuminating lamp two ends is increased, make light brighten; Otherwise; When ambient light changes from weak to strong, can cause that the resistance of photo resistance 23 descends, the voltage that causes being added in the illuminating lamp two ends of luminescence component reduces; Thereby the electric current that is added in luminescence component illuminating lamp two ends is reduced; Make and the light deepening realize the automatic control of contrast bright lamp brightness, make flashlight 1 more energy-conservation.

In addition, the utility model formula flashlight 1 with an automatic light meter also can cooperate bracing frame to use, and promptly when needs carry out priming illumination with flashlight 1, can select to be used with bracing frame; During use, at first flashlight 1 is installed on the connector 3, is about to flashlight 1 and is arranged on the sleeve 32, make it compress stay 321 on the sleeve 32 in that fastening tube 33 is tightened to, thereby flashlight 1 is fixed on the connector 3; Then; Promote said feet 44; Said feet 44 drives the connecting portion 423b swing of said rotating shaft 423, and said connecting portion 423b swing drives rotation section 423a and in said rotation slot 422a, rotates, and last said feet 44 swings to an end of sidewall slope from the vertical end of said rotation hole 422b sidewall; The angled side walls restriction of said rotation hole 422b and the said feet 44 of conflicting, this moment, said feet 44 was opened; Fixed leg 411 with said holder 41 bottom surfaces is plugged among the said fixing hole 421a again, thereby said holder 41 and said supporting seat 42 are fixed; Then, the Connection Block 31 of connector 3 is plugged in the hollow structure of holder 41, can be with flashlight 1 fixing and be used to provide a fixing light source; In addition, because the brace 323 on the sleeve 32 is articulated on the Connection Block 31, therefore, pivotable sleeve 32 can adjust the emergent light of flashlight 1 with the angle of adjustment flashlight 1 relative support body 4 according to actual needs flexibly, and convenient illumination or warning strengthen usability.

And in some bursts in emergency circumstances; Can also a lampshade 5 be installed to reach the effect of caution at the head of flashlight 1, for example snugly cover a red lampshade 5 at the head of flashlight 1, open the switch of said flashlight 1 after; The irradiate light that said flashlight 1 sends is on said lampshade 5; Said lampshade 5 can be redness, thereby sends alarm signal to the external world, and is convenient and practical.

During the folding support frame as described above; Said connector 3 is disassembled from support body 4; Again lampshade 5 is removed from the head of flashlight 1, and flashlight 1 is disassembled from connector 3, more said feet 44 is swung to the vertical end of sidewall from an end of said rotation hole 422b sidewall slope; Make feet 44 foldings, like this so that deposit or carry.

Because the utility model formula flashlight 1 with an automatic light meter, it has light-operated light modulating device 2, and said light-operated light modulating device 2 comprises circuit board, fixing body 22 and light-sensitive element 23; Said fixing body 22 is connected on the said cylindrical shell 12, and said circuit board is built in the said cylindrical shell 12 and with said luminescence component and said power supply and electrically connects, and said light-sensitive element 23 is embedded on the said fixing body 22; And said light-sensitive element 23 electrically connects with said circuit board; Said light-sensitive element 23 is embedded at through said installing hole 22a and makes on the said fixing body 22 that said light-sensitive element 23 is highlighted in outside the said fixing body 22, is highlighted in said fixing body 22 outer light-sensitive elements 23 and just can directly contacts with extraneous, thereby can directly receive the external environment light intensity; Therefore; In the flashlight use, start light-operated light modulating device 2 after, said light-sensitive element 23 changes according to the power of surround lighting; The luminescence component light and shade that can control flashlight 1 automatically changes; Promptly when environmental light intensity, can control the light deepening of flashlight 1, the light that can control flashlight 1 when time a little less than the surround lighting brightens, to reach the bright dark purpose that changes of real-time regulated flashlight 1; Make flashlight 1 have good service precision, and more energy-conservation.

The structure of the utility model flashlight 1 and operation principle etc. are well known to those of ordinary skill in the art, no longer do detailed explanation at this.

The above disclosed preferred embodiment that is merely the utility model can not limit the interest field of the utility model certainly with this, so according to the equivalent variations that the utility model claim is done, still belong to the scope that the utility model is contained.

Claims

1. formula flashlight with an automatic light meter; Comprise tube head, cylindrical shell, tail-hood, power supply and luminescence component; Said luminescence component is arranged at the front end of said cylindrical shell, and said tube head is connected in the front end of said cylindrical shell and covers at the outside of said luminescence component, and said on-chip power electrically connects in said cylindrical shell and with said luminescence component; Said bonnet is connected in the rear end of said cylindrical shell; It is characterized in that: also comprise light-operated light modulating device, said light-operated light modulating device comprises the fixing body of circuit board, light-sensitive element and ring-type, and said fixing body is connected on the said cylindrical shell; Said circuit board is built in the said cylindrical shell and with said luminescence component and said power supply and electrically connects; Said light-sensitive element is embedded on the said fixing body, and said light-sensitive element and the electric connection of said circuit board, and said light-sensitive element is controlled the light and shade of said luminescence component according to the power of the light that receives.

2. formula flashlight with an automatic light meter as claimed in claim 1, it is characterized in that: said light-sensitive element comprises a plurality of, said light-sensitive element is radially evenly installed along said fixing body.

3. formula flashlight with an automatic light meter as claimed in claim 2 is characterized in that: said light-sensitive element is photo resistance.

4. formula flashlight with an automatic light meter as claimed in claim 3 is characterized in that: said light-operated light modulating device also comprises transparent outer cover, and said transparent outer cover covers at outside the said light-sensitive element.

5. formula flashlight with an automatic light meter as claimed in claim 1; It is characterized in that: also comprise a bracing frame; Support frame as described above comprises support body and connector; Said support body comprises holder, supporting seat and at least three feets, and said feet is installed on the lower end of said supporting seat, and said holder is fixed in the upper end of said supporting seat; Said connector comprises Connection Block and obvolvent mechanism; Said obvolvent mechanism comprises sleeve and the fastening tube that all is hollow structure; One week of the right-hand member of said sleeve axially offers some grooves along said sleeve; Form stay between the adjacent two said grooves, the left end of said fastening tube is outside the right-hand member that is placed in said sleeve of screw-threaded engagement, and the right-hand member barrel dliameter of said fastening tube progressively reduces to form conical inboard wall along the direction that said sleeve penetrates said fastening tube; Said conical inboard wall pushes contraction to the stay that progressively penetrates in it; The left end of said sleeve protrudes out brace, and said brace is articulated on the said Connection Block, and said Connection Block is plugged in the said holder versatilely.

6. formula flashlight with an automatic light meter as claimed in claim 5; It is characterized in that: said Connection Block comprises base and two contiguous blocks; Two said contiguous blocks are oppositely arranged and the lower end all is installed on the said base; Form the swivelling chute that supplies said brace to be inserted and rotated between the two said contiguous blocks, be provided with connecting axle in the said swivelling chute, said brace inserts in the said swivelling chute and is articulated on the said connecting axle.

7. formula flashlight with an automatic light meter as claimed in claim 6; It is characterized in that: offer the connecting hole that supplies said connecting axle to pass on the said brace; Radially also be provided with some locating slots along said connecting hole; Be provided with in the said swivelling chute that corresponding to be flexible location protruding with said locating slot, said connecting axle passes said connecting hole, contacts in the said locating slot and said location is protruding.

8. formula flashlight with an automatic light meter as claimed in claim 7; It is characterized in that: said location convex closure is drawn together projection and spring; Offer the accepting groove of accommodating said spring on the said Connection Block, said accepting groove is communicated with said swivelling chute, and said spring is contained in the said accepting groove; One end of said projection stretches in the said accepting groove and with said spring and conflicts, and the other end of said projection stretches in the said accepting groove and contacts in the said locating slot.

9. formula flashlight with an automatic light meter as claimed in claim 5; It is characterized in that: said supporting seat comprises that loam cake, pedestal reach and the corresponding rotating shaft of said feet; Offer in the said pedestal and the corresponding rotation slot of said rotating shaft; Said pedestal runs through and offers the rotation hole that is communicated with said rotation slot, and said rotating shaft is articulated in the said rotation slot, and said rotating shaft has the connecting portion that extends in the said rotation hole; The passing said rotation hole and be connected of said connecting portion swing with said feet; Said loam cake is installed on the said pedestal and contacts with rotating shaft in the rotation slot, and said holder is hollow structure and is fixed in and covers on said, and said Connection Block is plugged in the hollow structure of said holder.

10. formula flashlight with an automatic light meter as claimed in claim 9 is characterized in that: said holder and supporting seat all run through and offer the osculum that is connected, and said osculum is communicated with the hollow structure of said holder.