CN1601173A - Portble illuminator - Google Patents

Abstract

This invention is a kind of portable lighting device. It includes a battery case, a optical source that burdening the battery case and a can that the first end out extend, circle enclose the said optical source self battery case. The can is made from translucent material, and has a inside surface that with part reflection in order to forward reflect part of the incident light from the optical source, and can make part of incident light scatter around through the can at the same time. The can also has a diffusion external surface that used to diffuse the light penetranced the can. The can has a neck strap, it is used to fix the one-piece head part to the battery case. Besides, a protective cap that includes a collimating lens is one-piece style forming in the head part. So comparing to traditional flashlight, this invention can use little components.

Description

Portable illumination device

The application is that Chinese application number is 98814320.96, the applying date is on November 18th, 1998, be entitled as the dividing an application of application of " portable illumination device ".

Background of the present invention

The present invention relates generally to a kind of lighting device.Specifically, the present invention relates to a kind of lighting device of portable, battery powered.

As everyone knows, the portable illumination device such as flashlight and hand lamp can produce a directed light beam.Fig. 1 shows at present on market by assignee of the present invention's structure that sell, lower-cost flashlight 10.Tradition flashlight 10 comprises a battery accommodating housing 12 of being made by molded plastics, and it can also be as the handle that grips flashlight.As shown in Figure 1, the cylindrical substantially shape of battery container 12, and an end has an integrally molded end wall 13.Battery can be inserted in it or comprise from the opening end of the battery container 12 that wherein takes out and to be used for the external screw thread 14 that is meshed with the internal thread 16 of a case 18.Battery container 12 comprises that also one is formed on the slit 20 in the one side, so that the lug boss 22 of slip electric contact point 24 can be fixed on the switch 26 that is arranged on the outer surface of battery container 12.

Flashlight 10 comprises that also one is plugged in the spring 28 of the inside, battery chamber that is surrounded by battery container 12.Spring 28 is arranged to contact with end wall 13, pushes forward and contacts with the positive terminal 30 of bulb 32 with the battery that will be inserted.Spring 28 can also provide for the negative terminal that inserts the final section battery in the battery container 12 and electrically contact.Also have one fixedly electric contact point 34 be arranged on the inside, battery chamber of battery container 12, be electrically connected to move at spring 28 and to provide between the electric contact point 24.

Flashlight 10 also comprises a bulb keeper 36, and it has the internal thread that is meshed with the external screw thread of the negative electricity contact 40 that is used as bulb 32.Bulb keeper 36 preferably also comprises an external screw thread 42 or a face of weld, is used for that bulb keeper 36 is fixed on one and is arranged within the hole 44 that electrically contacts in the frame 46.Adopt a kind of like this setting, the negative pole contact terminal 40 of bulb 32 just can electrically connect with contact 46 by keeper 36.Meanwhile, if bulb 32 is screwed in the bulb keepers 36, positive terminal 30 will extend stretch out keeper 36 outside after-opening, thereby contact with the positive terminal of the most last batteries of inserting.In order to make bulb 32 energising or outage, a switch 26 can endwisely slip along battery container 12, slip contact 24 is contacted with contact bar 46 with moving backward forward contact with removing.

Flashlight 10 also comprises a reflector 48, and it has a centre bore that is used for holding bulb 32, and the light that emits from bulb 32 is forwards reflected substantially.One lens 50 are arranged in the flashlight open front that is surrounded by case 18 and reflector 48, and are impaired to prevent bulb.Lens 50, reflector 48, contact bar 46, bulb 32 and the bulb keeper 36 that has constituted the head construction of flashlight 10 jointly covers on the opening end of battery container 12 with case 18 and is fixed, described case comprises that one is positioned at the lip of its front end, drops out to prevent lens 50 and the front end of each member that is arranged in its back from case 18.

Though flashlight 10 has constituted the relatively low flashlight of a kind of cost,, it comprises and is no less than 11 members.And, thereby owing to have some member interfaces may allow water infiltrate the inside that arrives battery container 12, therefore, can not be with flashlight 10 as a waterproof flashlight.

Though can be used for preferably a relative less area bright ground is illuminated such as traditional hand lamp as described above and flashlight, but, they can not resemble the lighting device that is used for area illumination, are used to provide broad area illumination like that such as desk lamp or gas lamp., these area lights not too are suitable for forming a light beam again so that directional lighting is carried out in a distance zone at a distance.Because those both can be used as the lighting device that the directional lighting device also can be used as the area illumination device market demand, therefore, construct all devices to realize this two functions.In this lighting device, some is provided with some light source that separates and the lens that can be excited respectively.In the common U.S. Patent No. of transferring the possession of 08/690,287, disclosed an example of this class luminaire.Owing to need two independent switches or a multiposition switches so that be light source power supply separately selectively, and because luminaire chamber that those must be separated and lens are arranged on described device inside integratedly, therefore, these install often complex structure and heaviness, and cost is higher.

In order to provide a kind of directional lighting device that both can be used as also can be used as area illumination device, simple in structure and lower-cost lighting device, assignee of the present invention has developed a kind of two-in-one portable illumination device that adopts single source and single power on/off switch previously.These lighting devices comprise one two element type housing, and the first of described housing can accommodate battery, switch and light source within it, and second outside of described housing comprises two chambers that separate.First and the most previous chamber be a directed illuminating chamber, second chamber is formed by a cylindrical shape diffusing lens of cylinder body inside that is arranged on the second portion of described housing integratedly.Like this, the second portion of described housing just can endwisely slip along first housing, light source is repositioned at the inside of one of two luminaire chambers.Therefore, fully slip into the first that makes described housing within the second portion of described housing, thereby promote light source and make its little opening that passes the reflector inside of directional lighting device chamber, the user can be with a kind of like this lighting device as a directed luminaire.Then, for this device is used as an area illumination device, the user can make the second portion of described housing fully extend, thereby makes described light source from directional lighting device chamber receiving area luminaire chamber, makes there from the light that wherein emits and passes each cylindrical shape diffusing lens.Though these portable illumination devices are with to adopt two portable illumination devices that separate light source to compare cost lower and volume is less,, to compare with traditional flashlight, they remain complexity of structure, and cost is higher.And because single source all can only be positioned at a chamber each time, therefore, this portable illumination device can not be used as a directed illuminating lamp and an area lights simultaneously.Therefore, need a kind ofly can be used as an area illumination device and a directed luminaire and easily manufactured, lower-cost portable illumination device simultaneously.

The present invention's general introduction

One aspect of the present invention aims to provide a kind of portable illumination device that can be used as a directional light sources and an area illumination device.Another aspect of the present invention aims to provide a kind of need and utilizes single source can be used as the portable illumination device of a directional light sources and an area illumination device simultaneously.

In order to realize these and other aspect and advantage, portable illumination device of the present invention comprises that a battery container, is bearing in the light source of first end of described battery container; And one described first end from described battery container stretch out, circumferentially around the case of described light source, described case is made by a kind of trnaslucent materials, and the inner surface with part reflection can make a part of incident light transmission pass described case and circumferentially scattering of edge simultaneously reflecting towards the place ahead from a part of incident light of described light source.

Another aspect of the present invention aims to provide the portable illumination device that a kind of cost is lower and be convenient to assemble.Another aspect of the present invention aims to provide a kind of portable illumination device that can significantly reduce number of components of comparing with other portable illumination device.Another aspect of the present invention aims to provide the portable illumination device of the less and waterproof of a kind of number of components.

In order to realize these and other aspect and advantage, portable illumination device of the present invention comprises: one have an opening end and a blind end, be used for accommodating the battery container of at least one battery; One first electric contact piece, it extends to described opening end from the described blind end of described battery container, and being used for provides an electrical connection for first contact of at least one battery; One light source, it has first and second contact terminals, be used for accepting and come from the electric power that is contained at least one battery in the described battery container, described light source is bearing in the described opening end of described battery container, so that one second contact of described second contact and at least one battery electrically connects; One head construction that forms as one, it is rotatably mounted on the described battery container and extends outward from the described opening end of described battery container, be positioned at described light source around, described head construction comprises that one is used for the integral type over cap of described light source, and has a reflective inner surface that is used for making the light from described light source to reflect away; One be arranged in the middle of described head construction and the described battery container, be used for anti-sealing and flow into seal in the described flashlight by the interface between described battery container and the described head construction; And one second electric contact piece, it is arranged in the described head construction, be used for when described head construction rotates to a primary importance with respect to described battery container and described first electric contact piece electrically contacts selectively, and can contact with described first contact of described light source.

These and other feature of the present invention, advantage and purpose will obtain further understanding and cognition after will having consulted the following description book, claims and accompanying drawing those skilled persons in present technique field.

Brief Description Of Drawings

In the accompanying drawings:

Fig. 1 is the three-dimensional exploded view of a traditional flashlight;

Fig. 2 is the stereogram of a flashlight of constructing according to first embodiment of the invention;

Fig. 3 is a light schematic diagram, and it shows the operation principle of a flashlight of constructing according to one aspect of the invention;

Fig. 4 A-Fig. 4 C is a side view, and they show all structures that is used for a flashlight of being constructed according to the present invention;

Fig. 5 is the three-dimensional exploded view of a flashlight of constructing according to first embodiment of the invention;

Fig. 6 A and Fig. 6 B are the cutaway views of the head construction of a flashlight of being constructed according to the present invention, and they show and are used for supporting with respect to head construction two kinds of different institutions of a bulb;

Fig. 7 is the stereogram of a flashlight of constructing according to second embodiment of the invention;

Fig. 8 is the stereogram of a hand lamp of being constructed according to the present invention; And

Fig. 9 A and Fig. 9 B are the front view and the side view of an operating illumination device of being constructed according to the present invention.

The specific descriptions of preferred embodiment

The term that uses and describe in this article " forward " is meant when the basic sensing of portable illumination device of the present invention as a directed light source time.Should be understood that, that term that this term and other are used for describing the relative orientation of each parts of the present invention only is for the correlation between each parts is described, and should not come the present invention is limited according to the orientation in a certain concrete environment.

Fig. 2 shows a flashlight 100 of constructing according to first embodiment of the invention.Flashlight 100 comprises a battery container 102, and this battery container preferably is formed into a hollow cylindrical body, to accommodate one or more batteries that are used for providing for its light source power supply.Because molded plastics has and do not corrode and performance of watertightness, and cost is lower, therefore, battery container 102 is preferably made by molded plastics.Flashlight 100 also comprises a head construction 110, and this head construction comprises a collar 112 and a light guide section 114.Such just as will be described hereinafter, the opening end of battery container 102 and a uncovered backward chamber that is surrounded by collar 112 preferably include some screw threads, so just can make head construction 110 with respect to battery container 102 rotations and connection.As also will be described below, some electric contact points are arranged on the inside of battery container 102 and head construction 110, and like this, head construction 110 rotatablely moving between ad-hoc location just can be cut off light source and connect.As shown in Figure 2, this particular configuration comprises a tab 116 that extends back from collar 112.Tab 116 also has can make the user make groove or the hole 118 of head construction 110 with respect to battery container 102 rotations more easily.Tab 116 is set can also make the user determine that promptly head construction 110 has forwarded the still position of energising of outage to.

As shown in Figure 3, the head construction 110 best trnaslucent materials that pass the wall of head construction 110 by a kind of a part of light transmission that can allow light source 122 send are made.The light guide section of head construction 110 can be considered a case (shroud), and it comprises a forward-facing square open chamber 124, and it is surrounded and defined by the inner surface 120 of case 114.Inner surface 120 is part reflector segment printing opacity preferably, so just can make from light source 122 and emit that incident a part of light thereon reflects in a kind of mode of collimation and as a directed light beam, and remaining incident light then transmission passes the wall of case 114.Preferably, the outer surface 126 of case 114 has certain histological structure, and it can pass transmission the light diffusion of case wall and come.The reflectivity of inner surface 120 can change selectively by its polishing degree.And the diffusion of light amount that case 114 is passed in transmission can change in the different piece of case 114, and can be more widely and change amount of diffusion with the incident light that influences transmission equably.Therefore, see also Fig. 4 A, the inner surface 120 of high polishing will make bigger percentile light be reflected and form a directed collimated light beam, will make the such edge circumferential transmission of higher percentile light shown in Fig. 4 B pass the wall of case 114 and the polishing degree of inner surface is low.In addition, shown in Fig. 4 C, can be controlled, thereby the percentage of light that passes the wall of case 114 to external reflectance and transmission is along the circumferential direction equated with being directed the reflectivity of the inner surface of case 114.Therefore, can be clear that described flashlight can be according to the main application of lighting device, such as an area illumination device or directional lighting device and carry out different manufacturings from the example shown in Fig. 4 A to Fig. 4 C.Shown in Fig. 4 C, can one an outside axially extended shank 104 be set at the blind end place of battery container 102, so that additional supporting role is provided, thereby flashlight 100 is stood by its end 103, so that as an area lights.

By a kind of translucent case of mode as indicated above is provided, only need to adopt a light source just a lighting device can be used as a directed luminaire and an area illumination device simultaneously.Adopt this structure, and also can be simultaneously compare with the conventional illuminator of area illumination device as a directed luminaire, the cost of making lighting device of the present invention is with much lower.

One lighting device is as the major advantage of a directed luminaire and an area illumination device simultaneously: it can not only make the user with oriented approach one zone be illuminated, and can also make others also can see the user.Therefore, lighting device also can play the effect of a location luminaire.In addition, except a collimation directional beam can be provided, by with light along circumferentially outwards guiding, walk a certain distance that user on a dark aisle can be guided in described directional beam user the place ahead, can illuminate their foot simultaneously again.No matter around the position of rotation of its central axis how flashlight can provide this circumferential illumination.

Now see also Fig. 3 again, what should be noted that is, head construction 110 can also comprise an over cap that forms as one 130, and it also is transparent substantially, and is the shape of a gas dome.Over cap 130 can be protected bulb 122.Be made for one by the other parts with over cap 130 and head construction 110, water just can not enter flashlight assembly by the opening end of chamber 124.Preferably with over cap 130 be made for collimation lens 132 foremost, thereby can make the optical alignment that passes from from light source 122 and from transmission wherein.As shown in the figure, the not transmission light that passes collimation lens 132 leaves over cap 130 with an enough big angle outgoing and incides on the part of inner surface 120 of case 114.Because inner surface 120 has the partial reflection characteristic, and because inner surface 120 has parabolic shape substantially, therefore, reverberation will form a light beam that collimates substantially towards the place ahead guiding.

Because head construction 110 is one to plant the integrally formed structure that materials such as plastics is made by single, and because described material is translucent, therefore, be incident on the rear wall 134 of case 114 light partly transmission pass wall 134 and enter one then by in neck ring 112 chambers 136 that surrounded, backward-facing.Because transmission enters the light of this backward-facing chamber 136 and can not arrive the outside of battery chamber thereby any useful illumination can not be provided, and therefore, a reflector 138 is arranged on the opposite face of the inner surface 120 of wall 134.Preferably, reflector 138 is aluminium or chrome coatings of an energy high reflection, and it can place on the rear wall 134 after molded good head construction 110.In case reflector 138 is arranged on the appropriate location, just not having any light transmission from light source 122 enters the battery chamber.Therefore, from all light of light source 122 or directionally reflected or pass the wall of case 114 forward to the circumferential diffusion in outer.

Fig. 5 is the detail drawing of the preferable total structure of flashlight 100.As shown in Figure 5, the opening end forward of battery container 102 comprises and is positioned on its outer surface, is used for the screw thread 106 that screw thread 140 on the inner surface with the collar 112 that is arranged on head construction 110 is meshed.The electrical connection of 102 opening end is provided by an electric connector 142 from rear wall 103 to battery container, and described electric connector comprises the wire that at one end forms a spring 144, and it contacts with the inner surface of end wall 103.The end of the other end of electric connector 142 is hooks 146, this hook the opening end of battery container 102 be wrapped in the battery container edge around.The hook 146 of electric connector 142 is positioned to and can contacts with the contact ring 152 of a combined type bulb clamping/contact bar 150.

Contact bar 150 is metal structures that form as one, it have one with the contacted discoid component 154 of leading edge of contact ring 152.Preferably, the front face of discoid component 154 is through high polish or plating, to be used as a reflector, all reflectors 138 as shown in Figure 3.Match with the profile of the rear wall 134 of case 114, discoid component 154 can be made identical profile, be resisted against to closely cooperate on the wall 134.The plate-like portion 154 of contact bar 150 comprises a centre bore 158, and its diameter is greater than the diameter of the negative contact 162 of bulb 122, but less than the diameter that radially extends convex ridge 164 that extends at the front end place of negative contact 162.Adopt this structure, just can support, thereby the illuminating part that makes bulb extends in that open chamber is inner forward, and positive and negative contact 160 and 162 is protruded into respectively in the backward-facing chamber and battery chamber that is surrounded by collar 112 backward bulb 122.In addition, a plurality of breach 156 stretch out from centre bore 158, be used for one from the corresponding pin 166 that rear wall 134 extends back out hold be in the collar 112 to form, backward within the open chamber.By a kind of like this structure is provided, contact bar 150 just can be installed in the inside of open chamber backward of collar 112 closely, so that bulb 122 is held in place.

And, except playing this bulb maintenance effect, contact bar 150 can also provide the electrical connection effect between the negative terminal 162 of bulb 122 and electric connector 142, described electric connector contacts with the negative terminal of the final section battery that is arranged on battery container 102 inside.With head construction 110 is tightened on the battery container 102, the positive terminal 160 that can make bulb 122 all the time be arranged on housing 102 in the positive terminal of the most last batteries contact.In addition,, the hook 146 of electric connector 142 is contacted with the inner surface formation of contact ring 152, complete electrical connection effect is provided between each battery and bulb 122 thus with head construction 110 being rotated to 102 final positions that can arrive of housing.To make flashlight outage thus in order cutting off to provide to the power supply of bulb 122, can to rotate head construction 110, contact ring 152 is outwards moved from hook 146, thereby the electrical connection between the negative contact of the negative terminal of each battery and bulb 122 is disconnected.

Adopt this structure, no longer need those parts that are used to provide a switching mechanism, can significantly reduce the cost and the complexity of flashlight thus.And, by electric connector and spring are made one, also can no longer need other member.But, the maximum advantage of saving parts gives the credit to and has adopted monoblock type head construction 110, described monoblock type head construction becomes single moulded parts with all features and the effect merging of a case, lens, reflector and bulb supporting member, therefore, can save a large amount of members.In addition, because it is by the interface between battery container 102 and the head construction 110 that water can arrive the unique channel of inside battery, therefore, provide an optional O shape circle, packing ring or other seal 170 by end, can easily flashlight be manufactured and have water proofing property at battery container 102.So, 11 members of traditional flashlight shown in Figure 1 can be reduced to five members altogether, another optional the 6th member is used for making the flashlight waterproof.Just as noted above, the water proofing property that strengthen 11 traditional element type flashlights will be very complicated.

In addition, Fig. 1 is compared and can see with flashlight shown in Figure 5, flashlight 100 of the present invention can also provide supplementary features that can be used as area lights except a directed flashlight can be provided.Therefore, consider that cost is lower, the consumer just may buy a kind of have those traditional flashlights the flashlight of the additional function that can not give.

Now see also Fig. 6 A and Fig. 6 B, there is shown and be used for two kinds of not isostructures bulb 122 being held in place with respect to head construction 110.In Fig. 6 A, be provided with one with the similar bulb keeper 174 of bulb keeper/contact bar shown in Figure 5 150, just removed contact ring 152, reduced its overall diameter.Therefore, bulb keeper 174 can similar mode a kind of and shown in Figure 5 be held in place bulb.Electrically contact in order between the hook 146 of the negative terminal of bulb 122 part and electric connector 142, to provide, but the coating 172 of a conduction and high reflection is formed on the rear surface of rear wall 134 and on the inner surface area of neck ring 112.

Now see also Fig. 6 B, there is shown the sub-assembly of contact bar/bulb keeper 176, its profile conforms to the profile of the inner surface of the backward-facing chamber that is surrounded by neck ring 112, thereby as a reflector and an electric contact point.Keeper/bulb keeper 176 comprises that also two or more are inwardly setovered to such an extent that be tight against the elastic fin 178 of bulb.Be understandable that each elastic fin 178 can have different structures, and is made by plastic material, thereby can form one with the other parts of head construction 110.

Though the present invention is described as the head construction 110 that has adopted a kind of fully integrated formula; this head construction comprises an over cap 130 that forms as one with the remainder of head construction 110; but; those skilled persons in present technique field as can be seen; over cap 130 can be individually formed, and utilizes supersonic welding to be connected on the chamber interior of face forward.By being individually formed over cap 130; just can utilize a kind of less opaque material; perhaps utilize a kind of coloured material to form the remainder of head construction 110, over cap 130 then can be made with the material of a kind of complete material transparent or another kind of color.

Fig. 7 shows the flashlight 200 according to the second embodiment of the invention structure.As shown in the figure, flashlight 200 comprises that one has the battery container/handle 202 of certain profile and/or certain institutional framework, and it can be made by plastics or metal, and has a rubber external coating.The difference of the flashlight 200 and the first embodiment flashlight 100 is that also a button toggle-switch 204 is arranged on the head construction 210.By a switch 204 is set, just need not make flashlight energising and outage with respect to battery container 202 rotation head constructions 210.

The head construction 210 of flashlight 200 is preferably constructed in the head construction 110 identical modes of a kind of and above-mentioned flashlight 100, so just can be with flashlight 200 simultaneously as an area illumination device and a directed luminaire.One end guard member 206 can randomly be arranged on around the leading edge of case 214.End keeper 206 can be made or can be made by a kind of harder elastomeric material by a kind of plastic opaque material, so that damping when flashlight drops.

Fig. 8 shows hand lamp constructed according to the invention 300.Hand lamp 300 preferably includes a battery container 302 with a handle that forms as one 304.At one end, battery container 302 comprises the screw thread that is used for and is arranged on the threaded engagement on the head construction 310.Head construction 310 is preferably constructed in the similar mode of a kind of and above-mentioned flashlight, promptly, it is preferably had the trnaslucent materials that high polishing degree, inner surface be parabolic shape and is made by a kind of, so that can go out and can make the part light transmission that is incident on the inner surface pass the wall of head construction 310, along circumferential outward diffusion from the light partial reflection of bulb (not shown).Because the bulb in this hand lamp normally is oriented to make its bulb partly to be positioned at battery container 302 inside, therefore, preferably a kind of material of high reflection is coated on the back of the head assemblies 310 that extend in battery container 302 inside, like this, the transmission light that passes head construction 310 just can not enter the battery chamber of housing 301 inside.Light source in the hand lamp 300 can be by being provided with a switch or with head construction 310 being rotated switch on and cut off the power supply in a kind of and above described similar mode of first embodiment of the invention flashlight that combines near handle 304.For the ease of head construction 310 is rotated, a tab 308 that comes out from head construction 310 outside projections can be set between on-position and de-energized.

Shown in Fig. 9 A and Fig. 9 B, creation notion of the present invention can be applied to the operating illumination device.Similar with traditional operating illumination device, operating illumination device 400 comprises a cage structure 404, and it can be used for protecting when this operating illumination device falls down bulb in order to avoid impaired.Operating illumination device 400 also comprises a suspender 406, so that described operating illumination device is suspended on light is incident upon position on the working region.The difference of operating illumination device 400 and conventional operation luminaire is that it comprises a diffusing lens 408 that is used for making the light diffusion of passing from transmission wherein from light source to come.Preferably, the inner surface of diffusing lens 408 is through high polish, and like this, the part light that is incident on the inner surface just can pass a lens section 410 and becomes necessarily to light beam to external reflectance.On that end relative that lens section 410 is arranged on diffusing lens 408 with battery container 412.Preferably will make parabolic shape from battery container 412 nearest that part of diffusing lens 408, and a bulb is bearing in paraboloidal focus place, like this, the most of light that comes from light source just can be guided and pass lens 410.

For the ease of operating illumination device 400 is used as a directed light source, preferably suspension assembly 406 is installed on the cage type part 404 pivotly around a pair of pivotal point 414.In this way, just can be with the such downward bending of suspension assembly 406 shown in Fig. 9 B, thus can not shelter from the light that casts out from lens 410.Suspension assembly 406 preferably includes a hook, and it is pivotably mounted on the suspender mounting support spare 406, be positioned on the one radius or be positioned on the pivotal pin 418 that is arranged on the supporting member 406.

Battery container 412 preferably includes the screw thread that is used for and is formed on the threaded engagement in the collar 422, and described collar is formed on the lower end backward of diffusing lens 408.Operating illumination device 400 can be provided with one and be used for connecting light source and the switch that cuts off light source, perhaps can be provided with one with similar electric connector structure shown in Figure 5, like this, just can rotate to connect and to cut off light source with the head that makes battery container 412 with respect to operating illumination device 400.Though the operating illumination device 400 shown in the figure is powered by some batteries, but, those skilled persons in present technique field are cognoscible to be, also notion of the present invention can be applied to an AC power operating illumination device that does not comprise a kind of like this battery container.By area illumination device and directional lighting device are combined in the operating illumination device, use the user of operating illumination device 400 just can for example use described operating illumination device so that working face is illuminated by its suspender, then can be with this operating illumination device as a directed luminaire, to make it brighter to throwing light in the big working region than the zonule.In addition, by lens 410, diffusing lens 408 and neck ring 422 are formed a monolithic construction, and by in the battery chamber 412 and neck ring 422 an O shape circle, packing ring or seal be set at the interface, people can be changed operating illumination device 400 into a waterproof work luminaire easily.

Though above the present invention is being described as substantially a low-cost lighting device; but; those skilled persons for the present technique field; cognoscible is that each notion described herein can be used in all other forms, complicated and expensive but not deviate from the lighting device of spirit of the present invention and protection domain.For example, adopt the notion of the case of part reflection and part transmission can be used in all lighting devices, and regardless of they expense or complexity how.Equally, what can be familiar with is, all low-cost flashlights as shown in Figure 5 can be made with a kind of opaque relatively case, and such as a white plastic, it can be basically with all light reflection the becoming directional beams from light source.A kind of although it is so flashlight does not have and can still, compare with traditional low-cost flashlight simultaneously as every advantage of an area illumination device, and it still has the advantage that number of components is less relatively and manufacturing cost is lower.

Above description only is considered as the description for several preferred embodiments.For those skilled persons and the manufacturing in present technique field or adopt those personnel of the present invention, can make all changes to the present invention.Therefore; should be understood that; shown in the accompanying drawing and hereinbefore each embodiment that describes only is the purpose that illustrates for example; rather than restriction protection scope of the present invention, protection scope of the present invention should comprise that the appended claims that the Patent Law rule of equivalence principle makes an explanation determines by employing.

Claims (20)

1. integral type head construction that is used to have the portable illumination device of a battery container, described head construction comprises:

One installation portion that is used for described integral type head construction is installed on battery container;

One is formed on the place ahead of described installation portion and surrounds the light guide section of uncovered forward first chamber, and described light guide section has a polishing reflecting surface on the inner surface of described first chamber, be used for and will guide forward from the light of a bulb; And

One is positioned at the bulb support in the middle of described installation portion and the described light guide section, be used for supporting a bulb, and an electric contact piece of bulb is exposed in the battery container, is used for accepting the electric power that comes from dress battery within it, and can makes the luminous end of bulb extend into described first chamber.

2. integral type head construction as claimed in claim 1, it is characterized in that, the described polishing reflecting surface of described light guide section can will come from the incident light partial reflection of bulb, and can make incident light partly be transmitted through an outer surface of described light guide section, with along the circumferential scattering except that the place ahead.

3. integral type head construction as claimed in claim 2 is characterized in that, the described outer surface of described light guide section has certain institutional framework, comes with the incident light diffusion of transmission being passed described light guide section.

4. integral type head construction as claimed in claim 1, it is characterized in that, described installation portion comprises that one surrounds the neck ring of uncovered backward second chamber, in described neck ring, be provided be used for described battery container on the screw thread of threaded engagement, so that described head construction is rotatably mounted in battery container.

5. integral type head construction as claimed in claim 1 is characterized in that, described first chamber that is surrounded by described light guide section is parabolic shape.

6. integral type head construction as claimed in claim 1 is characterized in that described each several part is made by plastic material.

7. integral type head construction as claimed in claim 1 is characterized in that, described each several part is molded forming.

8. integral type head construction as claimed in claim 1 is characterized in that, described light guide section comprises that also one is used for covering transparent dome lid described bulb, that form as one.

9. integral type head construction as claimed in claim 8 is characterized in that, described transparent dome lid comprises a collimation lens that forms as one.

10. integral type head construction as claimed in claim 8 is characterized in that, described transparent dome lid is from the projection forward to the back-end of described first chamber.

11. integral type head construction as claimed in claim 8 is characterized in that, the described transparent dome lid that forms as one provides a water and the contacted waterproof cover of bulb that is used for preventing to flow into described first chamber.

12. a flashlight, it comprises:

One have an opening end and a blind end, be used for packing into and receive the battery container of at least one battery;

One first electric contact piece, it extends to described opening end from the described blind end of described battery container, and being used for provides an electrical connection for first contact of at least one battery;

One light source, it has first and second contact terminals, be used for accepting and come from the electric power that is contained at least one battery in the described battery container, described light source is bearing in the described opening end of described battery container, so that one second contact of described second contact and at least one battery electrically connects;

One head construction that forms as one, it is rotatably mounted on the described battery container and extends outward from the described opening end of described battery container, be positioned at described light source around, described head construction comprises that one is used for the over cap of described light source, and has a reflective inner surface that is used for making the light from described light source to reflect away; And

One second electric contact piece, it is arranged in the described head construction, be used for when described head construction rotates to a primary importance with respect to described battery container and described first electric contact piece electrically contacts selectively, and can contact with described first contact of described light source.

13. flashlight as claimed in claim 12 is characterized in that, described first electric contact piece comprises that one is used for described at least one battery bias is become to be tight against the spring described second contact, that form as one that light source is stated in the residence.

14. flashlight as claimed in claim 12 is characterized in that, described head construction is translucent, and therefore, the described inner surface of described head construction can partial reflection and can the part transmission.

15. flashlight as claimed in claim 14 is characterized in that, described head construction also comprises the diffusion outer surface that an incident light diffusion that is used for making transmission pass described inner surface is come.

16. flashlight as claimed in claim 12 is characterized in that, described over cap comprises that one is used for making the lens from the optical alignment of described light source.

17. flashlight as claimed in claim 12 is characterized in that, described head construction and described second electric contact piece are cooperated jointly so that described light source is removably installed in described head construction.

18. flashlight as claimed in claim 12 is characterized in that, the described inner surface of described head construction is parabolic shape.

19. flashlight as claimed in claim 12 is characterized in that, described head construction is made by plastic material.

20. a waterproof flashlight, it comprises:

One have an opening end and a blind end, be used for accommodating the battery container of at least one battery;

One first electric contact piece, it extends to described opening end from the described blind end of described battery container, and being used for provides an electrical connection for first contact of at least one battery;

One light source, it has first and second contact terminals, be used for accepting and come from the electric power that is contained at least one battery in the described battery container, described light source is bearing in the described opening end of described battery container, so that one second contact of described second contact and at least one battery electrically connects;

One head construction that forms as one, it is rotatably mounted on the described battery container and extends outward from the described opening end of described battery container, and be positioned at described light source around, described head construction comprises that one is used for the integral type over cap of described light source, and has a reflective inner surface that is used for making the light from described light source to reflect away;

One be arranged in the middle of described head construction and the described battery container, be used for anti-sealing and flow into seal in the described flashlight by the interface between described battery container and the described head construction; And

One second electric contact piece, it is arranged in the described head construction, be used for when described head construction rotates to a primary importance with respect to described battery container and described first electric contact piece electrically contacts selectively, and can contact with described first contact of described light source.

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