CN1902432A - Eliptical reflector and curved lens system for a portable light - Google Patents
Eliptical reflector and curved lens system for a portable light Download PDFInfo
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- CN1902432A CN1902432A CN 200480039182 CN200480039182A CN1902432A CN 1902432 A CN1902432 A CN 1902432A CN 200480039182 CN200480039182 CN 200480039182 CN 200480039182 A CN200480039182 A CN 200480039182A CN 1902432 A CN1902432 A CN 1902432A
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Abstract
An elliptical reflector is provided that produces a small, circular, concentrated light beam and a less bright, larger outer elliptical flood light. The outer rim of the reflector is curved, and a matching curved lens is provided for covering the outer rim of the reflector. The curved outer rim of the reflector and the curved lens permit the light beam to extend in a broader horizontal pattern of light, potentially providing close to 180 degrees of illumination. If desired, a portion of the light can be directed downward to light a dark path, for instance.
Description
The related application of cross reference
Present patent application requires the priority of U.S. Provisional Patent Application of submitting on March 5th, 2,004 60/550,414 and the U.S. Provisional Patent Application of submitting on December 8th, 2,003 60/527,693, and its full content is quoted at this.
Technical field
The present invention relates to a kind of illumination reflector and lens combination, and relate more specifically to a kind of speculum and lens combination of sending the floodlight pattern from light source.
Background technology
Though the portable lighting equipment such as the little filament light source of having of flashlight is constructed with speculum usually, the shape of this speculum is made the narrower focused beam of generation, be used for illumination, but the flood beam that often needs to use this filament light source to produce broad is with near the bigger zone of scope throwing light on than far object.In June, 1996, the U.S. Pat that licenses to people such as DavidR.Schaller 5,424,927 of communique on the 13rd disclosed a kind of flashlight with parabolic reflector, and this parabolic reflector terminates in the rectangular aperture.This parabolic reflector makes the parallel light that sends from the filament that is positioned at reflector focal point.The rectangular electro-optic device that is driven by electronic circuit covers this rectangular aperture, and operation is passed through to form the some light beam directional light in first state.In order to produce flood beam, the directional light that becomes refraction to produce the state-transition of electro-optical device by parabolic reflector.But the use of electro-optical device and required electronic drive circuit is expensive, and electro-optical device has reduced the light quantity from speculum.
The speculum that is used for rectangular aperture is known, and it has a pair of relative parabola or the elliptical reflecting part that is partly linked to each other by plane reflection.But, often cause inhomogeneous flood beam from the reflection of plane reflection part.June 7 nineteen eighty-three communique the U.S. Pat that licenses to GeoffreyR.Draper 4,386,824 disclose a kind of motor vehicles rectangular lamps speculum, it has parabolic lateral reflecting part and reflecting part, upper and lower, and its shape is made parabola or the elliptic curve that unlimited amount is provided.These parabolas or elliptic curve extend forward from reflector body, and finish in its rectangle open front place.The reflecting part, upper and lower has consistent focus (focus) and focal axis, and focal length increases to horizontal reflecting part gradually from the speculum center.As a result, in order to produce flood beam, the reflecting part, upper and lower needs the arrangement of curves of relative complex.And the use of concave parabolic lateral reflectors causes producing inhomogeneities in the flood beam that is produced.
License to people such as Sedovic, transfer the proprietary U.S. Pat 6,048,084 of the application and relate to a kind of lighting apparatus, such as the speculum of flashlight.This speculum has cup shell, and this cup shell has the relative wall of the first couple and second pair of relative wall that extends to rectangular aperture from a hole of cup shell.
The inner surface of speculum wall is can be catoptrical in the Sedovic patent.In the first pair of wall each is the depression curved surface, and its focus is positioned at the place ahead of cup shell internal filaments formula light source, and in the second pair of wall each is protruding curved surface, and its focus is positioned at the cup shell outside.First pair of relative wall made reflection from the light of filament light source by rectangular aperture with the shape of second pair of relative wall, with by picture that disperses filament and the light that reflection was produced, to form predetermined flood beam.
Disclosed speculum provides a lot of benefits in the Sedovic patent, and the rectangular light pattern that provides horizontal direction to be wider than vertical direction is provided.Though the speculum in the patents such as Sedovic is good for its purpose work, because this speculum comprises four sides, so have the shadow region in this speculum, wherein light is to external reflectance, but reflects to random direction.Though the light pattern that is produced has illuminated bigger square region, it comprises a lot of black lines and bright spot.
Summary of the invention
For basic comprehension of the present invention is provided, provide the brief overview of some embodiments of the invention below.This general introduction is not an extensive overview of the present invention.It is not in order to determine core/key element of the present invention or to describe scope of the present invention.Its unique purpose is to represent some embodiments of the present invention with the form of simplifying, as the preorder that is described in more detail that hereinafter provides.
According to one embodiment of present invention, provide a kind of elliptical reflector, produce less circular convection light and lower brightness, bigger exterior elliptical.According to one embodiment of present invention, the outer rim of this speculum is a curved surface, and provides a cooperation toroidal lens to be used to cover the outer rim of speculum.The curved surface outer rim of this speculum and toroidal lens allow light beam to extend with the horizon light pattern of broad, and the illumination near 180 ° is provided possibly.In addition, elliptical reflector and toroidal lens can be used for constraining light in vertical dimension.
According to an embodiment, elliptical reflector and toroidal lens can be configured to provide and the tight light pattern of coupling of people's visual capacity.That is, the direct viewing area of less circular convection light coupling eyes, and user's indirect vision is more closely mated in lower brightness, bigger elliptical light.Light utilizes in wideer horizontal plane better, rather than above or below unwanted.In addition, if desired, for example, light can be directly downwards to illuminate dark road.In order to accomplish these, according to one embodiment of present invention, the bottom of elliptical reflector can be opened wide, to allow downwards with wideer pattern reflection.As selection, the inwall of speculum can be configured to and/or bulb can be arranged to make some light downward.
With reference to the accompanying drawings, according to following detailed description, further feature of the present invention will become apparent, in the accompanying drawings:
Description of drawings
Fig. 1 is the front-side perspective view in conjunction with the flashlight of one embodiment of the invention;
Fig. 2 is the top view of flashlight among Fig. 1;
Fig. 3 is the vertical cross-section diagram of doing along speculum, and this speculum can be used for Fig. 1 flashlight according to an embodiment of the invention;
Fig. 4 is the horizontal sectional view of doing along speculum, and this speculum can be used for Fig. 1 flashlight according to an embodiment of the invention;
Fig. 5 is the backside perspective view of flashlight among Fig. 1, has shown the light beam of flashlight;
Fig. 6 is the front view of flashlight the place ahead and human eye in the comparison diagram 1;
Fig. 7 is the side view of flashlight among Fig. 1, the light beam that expression is sent from flashlight according to one embodiment of the invention;
Fig. 8 is the front-side perspective view of an alternate embodiment of speculum, and this speculum can be used for flashlight according to an embodiment of the invention;
Fig. 9 is the front view of speculum among Fig. 8;
Figure 10 is the sectional view that the speculum in Fig. 8 and 9 is done along the hatching 10-10 among Fig. 9;
Figure 11 is the sectional view that the speculum in Fig. 8 and 9 is done along the hatching 11-11 among Fig. 9;
Figure 12 is the sectional view of flashlight among Fig. 8, represents an alternate embodiment, and wherein bulb can stretch in speculum.
The specific embodiment
In the following description, different embodiments of the invention will be described.For illustrative purposes, for fully understanding of embodiment is provided, set up specific structure and details.But, obviously there are not these specific detail to those skilled in the art, the present invention also is attainable.And hard to understand in order not make embodiment, well-known features can be omitted or simplify.
With reference now to accompanying drawing,, wherein in several figure, identical Reference numeral is represented identical parts.Fig. 1 represents the flashlight 20 in conjunction with one embodiment of the invention.This flashlight 20 comprises the head 22 that is positioned at battery tray (retainer) 24 ends.Be provided for the switch 26 of opening and closing flashlight 20 in mode well known in the art.
Though flashlight 20 switches 26 with close head 22 shown in the figure, switch 26 also can be arranged in other position on battery tray 24 or the head 22, perhaps otherwise is provided with.In addition, arrange that with battery tray 24 modes of being in line alternatively, head 22 can be angled with battery tray 24 though head 22 is shown in the figure.In addition, battery tray 24 can be constructed in different mode to that indicated in the drawings with head 22.
For example, flashlight 20 can be configured to allow the user flashlight 20 vertically can be stood on the one end.Also can provide a kind of structure, wherein head 22 provides standing of flashlight 20.In order to reach this point, if desired, can provide projection at the outward flange of head 22, be used for storage to allow flashlight 20 to stand vertically.
In brief, according to one embodiment of present invention, on head 22, provide elliptical reflector 28 and toroidal lens 30.Elliptical reflector 28 and toroidal lens 30 allow to provide light with the horizontal plane wideer than typical round flashlight.Though describe with reference to flashlight 20, speculum 28 of the present invention and/or toroidal lens 30 can be used for any light source, comprise but are not restricted to dynamo lighting set, head lamp, auto lamp and floodlight.The present invention especially is applied to portable lamp, but not all embodiment is limited to this application.
Fig. 3 and 4 sectional view are represented big about the cross section (horizontal cross-section) of elliptical reflector 28 vertical centres and the cross section (vertical cross-section) at horizontal center respectively.As following more detailed description, according to one embodiment of present invention, wall 36,38, each in 40 and 42 is all crooked on toroidal lens 30 and the direction in vertical this direction from battery tray 24.Like this, level or the vertical cross-section of doing at diverse location can have different shapes.But,, adopt the view shown in Fig. 3 and 4 for the shape of elliptical reflector 28 is described.
As shown in Figure 3, the shape of upper wall 40 is made with respect to cup shell inside to recessed curved surface, and extend between the circular port 32 of elliptical reflector 28 and outer rim 44 this cup shell inside.Equally, the shape of lower wall 42 is made with respect to the curved surface of cup shell inside to fovea superior, and extend between the circular port 32 of elliptical reflector 28 and outer rim 44 this cup shell inside.
As shown in Figure 4, according to one embodiment of present invention, the shape of left wall 38 is made and is between circular port 32 and the outer rim 44, with respect to the inner cambered outwards curved surface of cup shell.In this embodiment, the shape of right wall 36 is also made and is between circular port 32 and the outer rim 44, with respect to the inner cambered outwards curved surface of cup shell.
With reference to figure 3, in one embodiment of the invention, upper wall 40 and lower wall 42 are with respect to cup shell central shaft symmetry again.The internal reflection surface of upper wall 40 and lower wall 42 forms the curved surface with respect to cup shell central shaft depression.The shape of these internal reflection surfaces is made to make and is come from bulb 34 (Fig. 2) the place ahead focus, penetrates light on these faces towards outer rim 44, thereby forms roughly predetermined vertical range beam pattern uniformly.
By lower wall 42 reflectings surface form curved surface can with form the curved surface symmetry by upper wall 40, but be not must be like this, as further instruction hereinafter.The accurate shape of curved surface of elliptical reflector 28 upper walls 40 and lower wall 42 is light pattern as required, determines by microcomputer modelling method well known in the art.
With reference to figure 4, left wall 38 and right wall 36 are with respect to cup shell central shaft symmetry again.The internal reflection surface of right wall 36 and left wall 38 forms to the outer lug curved surface, these curved surfaces are arranged to make the light of penetrating thereon towards outer rim 44, thereby form predetermined horizontal extent beam pattern, the reflecting surface of a left side wall 38 and right wall 36 is bent to guiding and is radiated at light on these faces from light source, thereby makes the light from rectangular aperture form uniform light beam in the predeterminated level scope.
The focus of this curved surface is positioned at the cup shell outside and is positioned at this cup shell rear.Among the embodiment shown in the figure, by the reflecting surface curved surface that forms and the curved surface symmetry that is formed by left wall 38 of right wall 36, but this layout not necessarily.The accurate shape of curved surface of right wall 36 of speculum and left wall 38 is light pattern as required, determines by microcomputer modelling.
The curved upper 40 of depression and lower wall 42 and limit the scope of light beam in vertical direction and horizontal direction to the right wall 36 of outer lug and left wall 38 are to provide uniform flood beam.In the people's such as Sedovic that this layout also proposes the patent explanation is arranged in this explanation background technology part.
For the embodiment shown in Fig. 4, the convex surfaces of right wall 36 and left wall 38 is preferably located in the perimeter of right wall 36 and left wall 38.Because elliptical reflector 28 is circular, therefore the closing line between right wall 36 and left wall 38 and upper wall 40 and the lower wall 42 is not defined significantly.But preferably, according to an embodiment, at the mid portion of elliptical reflector 28, right wall 36 and left wall 38 have a cross section, and wherein these walls are being convex surface in shape, shown in the embodiment among Fig. 4.In addition, according to an embodiment, upper wall 40 and lower wall 42 have a vertical cross-section of doing along elliptical reflector 28 centers, and wherein these two walls are with respect to the central concave of elliptical reflector 28, shown in the embodiment among Fig. 3.
According to one embodiment of present invention, Tu Qi right wall 36 and left wall 38 and the upper wall 40 of depression and the transition between the lower wall 42 are progressively.Thereby the side of elliptical reflector 28 is a continuous curve surface, thus they from the convex shape of as shown in Figure 4 right wall 36 and left wall 38 carry out the transition to as shown in Figure 3 upper wall 40 and the concave of lower wall 42.Equally, elliptical reflector 28 can be configured to make these gradually the surface of transition to external reflectance, thereby in the light pattern that elliptical reflector 28 provides, have only dim spot seldom or do not have dim spot.These gradually transitional surface suitable surface curvature as required light pattern determine by microcomputer modelling.
In an alternate embodiment of the present invention, right wall 36 and left wall 38 have the concave similar to as shown in Figure 3 upper wall 40 and lower wall 42.Equally, the transition between right wall 36 and left wall 38 and upper wall 40 and the lower wall 42 remains concave surface.In addition, the curvature of these walls can be determined by microcomputer modelling, and can mate to produce the light pattern of needs.
According to one embodiment of present invention, as shown in Fig. 5 and 6, elliptical reflector 28 provides less convection light 50 and the external beam 52 of broad, for example flood beam.Less central light beam 50 can be the shape of any needs, and is for example circular or oval.Similarly, external beam 52 can be the shape of any needs, but according to one embodiment of present invention, it is oval indirect vision with match people.By this way, the light pattern that provides by elliptical reflector 28 vision of match people closely.That is to say the direct viewing area of less convection light 50 coupling eyes, and lower, the bigger elliptical beam 52 tightr indirect visions of mating users of brightness.In order to reach this point, as shown in Figure 6, the shape of elliptical reflector 28 is closely represented human eye E.
The wall 36-42 of elliptical reflector 28 can construct as required, thereby makes light to 50 calibrations (collimate) of brighter central light beam.The residue inner surface of elliptical reflector 28 is used to make light outwards to scatter, so that bigger elliptical beam 52 to be provided.For example, shown in Fig. 4 the projection right wall 36 and left wall 38 can be used to make more light outwards to launch from bulb 34, with illuminate bigger elliptical beam 52 than far ultraviolet portion edge.
According to one embodiment of present invention, most of light that flashlight 20 is designed so that external beam 52 is (that is, from speculum directly outwards and along the axis that extends through flashlight 20) outward, but also make some light towards down, thereby these light can be used to illuminate road, for example on path.For example, the light beam shown in Fig. 7 60 mainly stretches out from flashlight 20 but also extends downwards.
For this function is provided, elliptical reflector 28 can be with respect to upper wall 40 and lower wall 42 symmetries.Thereby, make light pattern 60 produce from bulb 34 (Fig. 2) towards the light of upper wall 40 and lower wall 42 according to the mode shown in Fig. 7, perhaps otherwise produce, make light pattern mainly outward, and to small part towards down.In a kind of alternative that this function is provided, bulb 34 can be placed in the middle in elliptical reflector 28.
Select as another kind, the outer rim 44 of elliptical reflector 28 can be asymmetric.For example, shown in the dotted line among Fig. 3 62, thereby lower wall 42 can extend downwards and makes light towards down.Thereby according to this embodiment, upper wall 40 and lower wall 42 are asymmetric.Alternatively, lower wall comprises an oblong (oblong) part, allows some light patterns towards following.
In such embodiments, from the light pattern of elliptical reflector can be to shown in Fig. 5 similar, difference is that external beam 52 also extends downwards.Equally, more concentrated light beam inside 50 is externally not placed in the middle in the light beam 52.
Thereby according to foregoing, obviously elliptical reflector 28 needs not be " ellipse " that defines on stricti jurise.Alternatively, elliptical reflector 28 is cup-shaped and is configured to produce than the more light of vertical dimensions in horizontal dimensions, preferably has circular edge, and be somewhat ellipse at least in fact at least.Like this, as what adopted here, " ellipse " mean and comprise such shape, though asymmetric, and can be much according to the shapes of designer's needs, be included in and be oblong on one or more dimensions, perhaps asymmetric on one or more planes.But, usually, on horizontal dimensions, be longer than vertical dimensions by the light pattern that elliptical reflector 28 produces.This specific character will cause 28 of elliptical reflectors longer on horizontal dimensions probably, though be not must be like this.And according to an embodiment, elliptical reflector 28 comprises rounded internal surface, thereby has less dim spot or do not have dim spot the light pattern that sends from elliptical reflector 28.
According to one embodiment of present invention, flashlight 20 can be configured to make the relative position of bulb 34 (Fig. 2) to change with respect to elliptical reflector 28.This specific character is being known in the art, and the light that causes light flashlight 20 to send usually becomes narrower and concentrated from broad and diffusion.By bulb 34 is moved with respect to elliptical reflector 28, can provide the beam sizes that needs.
Fig. 2 is illustrated in the mark 70 on the part 71 of battery tray 24.In one embodiment of the invention, the part 71 of battery tray 24 is with respect to sleeve 72 rotation, to provide bulb 34 motion inside and outside with respect to elliptical reflector 28.
According to one embodiment of present invention, the outer rim 44 of elliptical reflector 28 is a curved surface.As shown in Figure 2, from top view, outer rim 44 forms a circular arc, and it has the central axis that vertically extends through flashlight 20.Toroidal lens 30 is contained on the outer rim 44.
In one embodiment, the shape of elliptical reflector 28 is made the aspect ratio that makes lower, the bigger elliptical beam of brightness 52 to be approximately width is 5: 1 than highly.As mentioned above, the shape of the in-profile of elliptical reflector 28 and wall can be configured to provide this function.Among the embodiment shown in the figure, opening 80 also helps this function is provided, though opening is for providing this function portion not necessarily.
As shown in Figure 7, according to one embodiment of present invention, the external margin of upper wall 40 and lower wall 42 can extend beyond the amount that flashlight 20 the place aheads equate, as the straight line X that does along these two walls, 40,42 forward edge.According to an alternative embodiment of the invention, for extra downward illumination is provided, can the get along well external margin of upper wall 40 of the external margin of lower wall 42 stretches out far equally, causes the external margin depression of the external margin of lower wall 42 with respect to upper wall 40.Embodiment although it is so is expression in the drawings not, but the straight line Y among Fig. 7 is the example that runs through the straight line of upper wall 40 and lower wall 42 external margins in such an embodiment.Such embodiment will further improve the ability of elliptical reflector 28 so that light main beyond outer light beam to small part towards down.
Generally speaking, elliptical reflector 28 and toroidal lens 30 provide the advantage that is better than standard circular reflective mirror and lens pattern.Especially, (that is, may be downward outwards and also) provides light in the position that needs most for elliptical reflector 28 and toroidal lens 30, and with the ellipse in the match people visual field more closely, and the pattern that is mainly level provides light.
In one embodiment, the forward edge of speculum, from top view, it forms curvature by X=78*Y
2The parabola that limits.The rear part edge that this speculum is done along same cross-sectional is by X=115.56*Y
2Limit.The vertical cross section of being done has by parabola X=13*Y
2The rear part edge that limits.This is a kind of speculum embodiment that the elliptical light pattern is provided.
The speculum 128 of an alternate embodiment as shown in Figure 8 according to the present invention.Speculum 128 shown in the figure being connected on the flashlight 120, but also can be used for other portable or non-portable illumination device.
Among the embodiment shown in the figure, speculum 128 comprises bottom cup-like portion 150 and top cup-like portion 156.Bottom cup-like portion 150 and top cup-like portion 156 are positioned at the bulb above and below, bulb 148 as shown in Figure 12.The shape of bottom cup-like portion 150 and top cup-like portion 156 is made arc, arcly form by such part, the shape of these parts make make they from the sidepiece of bulb 148 what equably at interval.Bottom cup-like portion 150 and top cup-like portion 156 help refraction, and will be from the light of bulb 148 reflection towards the position of concentrating, for example with reference to shown in the figure 5 than penlight 50.
Left part cup-like portion 152 and right part cup-like portion 154 extend near roof 140 and the lower wall 142 and are positioned at roof 140 and lower wall 142 belows and top.These surperficial foreign ranges culminate at point 160 places.Roof 140 and lower wall 142 are cup-shaped, and left part cup-like portion 152 and right part cup-like portion 154 also cause the outside of speculum 128 to be extended for the cup-shaped fact or exterior section 162 is inclined to the most of light that sends from bulb 148 is not mapped on these surfaces.
In one embodiment, the selective surface of speculum 128 can be a high reflection, or polishing, and other surface is dark, and unpolished, or coarse, so that the effect that needs to be provided.As an example, among the embodiment shown in the figure, bottom cup-like portion 150 and top cup-like portion 156, roof 140, lower wall 142 and exterior section 162 include dark surface (being represented by the surface of getting ready), and left part cup-like portion 152 and right part cup-like portion 154 and base 134 comprise the surface (not getting ready) of high reflection.By this way, light can focus on more rightly, for example, and in order to form the lower external beam 52 (by the reflection of left part cup-like portion 152 and right part cup-like portion 154) of bright gathering central point 50 (by base 134) shown in Fig. 5 and brightness.
If desired, as shown in Figure 12, bulb 148 can be withdrawn in speculum 128, thereby will launch from the light of speculum 128 from broad with disperse to narrower and concentrated adjusting.By moving bulb 148, can provide the beam sizes that needs with respect to speculum 128.
Embodiment shown in Fig. 8 also provides a kind of broad light pattern that is limited vertical direction.In one embodiment, emission is restricted to 71.91 ° of angles from the light of bulb 148 by roof 140 and lower wall 142, and is diffused to 148.68 ° of angles by Zuo Bi and right wall 138,136.Also can provide other angle.
Other distortion is in the spiritual scope of the present invention.Thereby though the present invention is easy to produce different modifications and alternative constructions, certain illustrated embodiment is represented in the drawings and is described in detail hereinbefore.But, should be appreciated that, be not that the present invention is constrained to particular forms disclosed, on the contrary,, the present invention includes the whole modifications, alternative constructions and the equivalent that fall in the spirit and scope of the invention as appended claim.
All the reference papers of here quoting comprise disclosing, and patent application, and patent all with reference to being bonded to same degree, make each reference paper be independence and be expressed as in conjunction with reference particularly, and its full content propose here.
The term " one " of (particularly in claims) and " this " and similar mark all are interpreted as covering single and a plurality of in the context of the invention explanation, point out except as otherwise noted or clearly.Term " comprises ", " having ", and " comprising " and " containing " is interpreted as unconfined term (that is, expression " comprise, but be not constrained to "), unless otherwise indicated.Term " connection " is interpreted as a part or whole part and is included in wherein, and is attached to it, or is connected with each other, even the parts in the middle of having.Here the number range of quoting only is used for as the straightforward method that each independent value is fallen into this scope separately, except as otherwise noted, and each separately value be attached in the explanation, here quote separately as it.Here Shuo Ming all method can be carried out with any suitable order, unless here indicate or by clearly pointing out in full.Any and whole examples, or exemplary language (as, " for example ") employing, only be used for embodiments of the invention are described better, and scope of the present invention do not caused restriction, Unless Otherwise Requested.Language in this explanation should not be interpreted as representing that any element that does not claim is necessary to enforcement of the present invention.
The preferred embodiments of the present invention have been described here, have comprised execution known for inventor optimal mode of the present invention.After having read above-mentioned explanation, the distortion of these preferred embodiments is conspicuous for those of ordinary skills.The inventor wishes that those skilled in the art adopt these distortion rightly, and the inventor plans to implement the present invention in the described mode of certain illustrated that is different from here.Thereby, the present invention includes that relevant law allows, all modifications of the theme that in claims, illustrates and equivalent technique scheme.And any combination of said elements in all possible distortion all contained by the present invention, clearly indicates except as otherwise noted or in context.
Claims (26)
1, a kind of portable lamp comprises:
Elliptical reflector with outer rim, the outer rim of described elliptical reflector are crooked; With
Be contained in the toroidal lens on the described speculum.
2, portable lamp according to claim 1, wherein said speculum structure also is arranged to the convection light and the exterior elliptical flood beam that provide less.
3, portable lamp according to claim 1, wherein said speculum comprises leading edge, described leading edge has the mid portion that further extends outwardly beyond sidepiece.
4, portable lamp according to claim 1, wherein said speculum is constructed and arranged to provide a kind of light pattern, wherein main light beam is outwards led by straight line from speculum, and extra light from speculum by towards the light of following guiding more than the light of guiding upwards.
5, portable lamp according to claim 4, the lower wall of wherein said speculum extends more than upper wall downwards, thereby a part of light is led towards following.
6, portable lamp according to claim 1, wherein said portable lamp are flashlight.
7, portable lamp according to claim 6, wherein said flashlight are configured to vertical support on a surface, flashlight exterior section and described surface engagement near the speculum.
8, portable lamp according to claim 7, wherein the flashlight exterior section comprises the projection that is used to engage described surface.
9, to lower recess, and lower wall is with respect to the inner upwards depression of speculum with respect to speculum inside for portable lamp according to claim 1, the upper wall of wherein said speculum.
10, portable lamp according to claim 9, wherein Zuo Bi and right wall all form towards inside the outwards curved surface of projection.
11, portable lamp according to claim 1, wherein said speculum comprises upper wall, lower wall, You Bi and Zuo Bi, and wherein said upper wall and lower wall are spaced apart, thereby at the light of first dimensional limit from described speculum ejaculation, and described Zuo Bi and right wall are spaced apart and be arranged to make the light that penetrates from described speculum to scatter in second dimension.
12, portable lamp according to claim 11, wherein said flashlight can be arranged to make first dimension for vertical, and second dimension is a level.
13, portable lamp according to claim 11, wherein said Zuo Bi and right wall are spaced apart and be arranged to make light to scatter 140 ° at least.
14, portable lamp according to claim 13, wherein said Zuo Bi and right wall are spaced apart and be arranged to make light to scatter 160 ° at least.
15, portable lamp according to claim 14, wherein said Zuo Bi and right wall are spaced apart and be arranged to make light to scatter 180 ° at least.
16, portable lamp according to claim 11 also comprises:
Be arranged in the light source of elliptical reflector; With
Extend through described elliptical reflector, and along the axis of arranging from the direction of light of light source ejaculation elliptical reflector;
The outside leading edge of wherein said Zuo Bi and right wall in the direction that is parallel to described axis to recovery, and to the recovery of light source greater than the outside leading edge of upper wall and lower wall.
17, portable lamp according to claim 16, wherein said You Bi and Zuo Bi include the cup-shaped inner surface of depression, and described inner surface stretches out from light source, and its part does not extend to the external margin of upper wall and lower wall at least.
18, portable lamp according to claim 17, the cup-shaped inner surface of wherein said depression extends outwardly into the exterior section of You Bi and left wall.
19, the convection light that provides less is arranged and be configured to portable lamp according to claim 17, the cup-shaped inner surface of wherein said depression, and the other parts of described elliptical reflector provide the exterior elliptical flood beam.
20, portable lamp according to claim 19, wherein said cup-shaped inner surface has bigger reflectivity than other parts.
21, portable lamp according to claim 20, wherein said cup-shaped inner surface polishing.
22, portable lamp according to claim 11, wherein said You Bi and Zuo Bi include the cup-shaped inner surface of depression, and described inner surface stretches out from light source, and its part does not extend to the external margin of upper wall and lower wall at least.
23, portable lamp according to claim 22, the cup-shaped inner surface of wherein said depression extends outwardly into the exterior section of You Bi and left wall.
24, the convection light that provides less is arranged and be configured to portable lamp according to claim 22, the cup-shaped inner surface of wherein said depression, and the other parts of described elliptical reflector provide the exterior elliptical flood beam.
25, portable lamp according to claim 24, wherein said cup-shaped inner surface has bigger reflectivity than other parts.
26, portable lamp according to claim 25, wherein said cup-shaped inner surface polishing.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US52769303P | 2003-12-08 | 2003-12-08 | |
| US60/527,693 | 2003-12-08 | ||
| US60/550,414 | 2004-03-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1902432A true CN1902432A (en) | 2007-01-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200480039182 Pending CN1902432A (en) | 2003-12-08 | 2004-12-08 | Eliptical reflector and curved lens system for a portable light |
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| Country | Link |
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| CN (1) | CN1902432A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103946628A (en) * | 2011-11-22 | 2014-07-23 | 皇家飞利浦有限公司 | A lighting device and a road lighting luminaire comprising the lighting device. |
| CN104685289A (en) * | 2012-05-16 | 2015-06-03 | 罗尼·普里奇特 | Multi-directional light assembly |
| US10794550B2 (en) | 2012-05-16 | 2020-10-06 | Triplelite Llc | Multi-directional flashlight |
| US12044369B2 (en) | 2020-10-06 | 2024-07-23 | Triplelite Llc | Multi-directional light assembly |
-
2004
- 2004-12-08 CN CN 200480039182 patent/CN1902432A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103946628A (en) * | 2011-11-22 | 2014-07-23 | 皇家飞利浦有限公司 | A lighting device and a road lighting luminaire comprising the lighting device. |
| CN103946628B (en) * | 2011-11-22 | 2016-05-11 | 皇家飞利浦有限公司 | Lighting apparatus and the road illuminating lamp that comprises lighting apparatus |
| CN104685289A (en) * | 2012-05-16 | 2015-06-03 | 罗尼·普里奇特 | Multi-directional light assembly |
| US10794550B2 (en) | 2012-05-16 | 2020-10-06 | Triplelite Llc | Multi-directional flashlight |
| US10794549B2 (en) | 2012-05-16 | 2020-10-06 | Triplelite Llc | Multi-directional light assembly |
| US12044369B2 (en) | 2020-10-06 | 2024-07-23 | Triplelite Llc | Multi-directional light assembly |
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