CN2457439Y - Flashlight capable of focusing light - Google Patents
Flashlight capable of focusing light Download PDFInfo
- Publication number
- CN2457439Y CN2457439Y CN 00263368 CN00263368U CN2457439Y CN 2457439 Y CN2457439 Y CN 2457439Y CN 00263368 CN00263368 CN 00263368 CN 00263368 U CN00263368 U CN 00263368U CN 2457439 Y CN2457439 Y CN 2457439Y
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- CN
- China
- Prior art keywords
- utility
- model
- light
- flashlight
- reflective mirror
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Optical Elements Other Than Lenses (AREA)
Abstract
The utility model relates to a flashlight capable of focusing and diffusing light. The utility model comprises a flashlight body (1), a reflector (3) and a lamp bead (2), wherein the reflector (3) and the lamp bead (2) are arranged at the head part of the flashlight body. The utility model is characterized in that the reflector (3) forms a concave surface shape, the central position approximately forms a paraboloid (31) and can form a shape embedded and jointed by a plurality of fan strips, and the external edge part does not form a paraboloid (32) and can form a shape embedded and jointed by a plurality of fan grid shape small flat mirrors. The reflector (3) of the utility model has two functions of focusing light and diffusing light simultaneously, the paraboloid (31) in the central position has the function of focusing the light as the prior art, and the non-paraboloid (32) at the external edge part has the function of uniformly diffusing the light. Compared with the prior art, the utility model has the advantages of simple structure and easy manufacture, and no switching is needed when the utility model is used.
Description
The utility model relates to a kind of flashlight, the flashlight that particularly a kind of optically focused, astigmatism are taken into account.
Flashlight is one of indispensable instrument in the family, generally comprise stack shell and be positioned at the battery of stack shell and be positioned at lamp pearl, the reflective mirror of stack shell head, usually, do not disperse for the light beam that makes ejaculation is concentrated, according to optical principle, reflective mirror adopts parabolic, and the filament position of lamp pearl is arranged on paraboloidal focus place, and the light that sends of filament is shown the directional light ejaculation greatly after the reflective mirror reflection like this.Yet in actual use, illuminating effect for flashlight, people not only have the requirement of optically focused, and have the astigmatism requirement, the former weighs brightness of illumination, light illumination zone, the latter is then just in time opposite, for this reason, many such designs are also arranged, as adopt two lamp pearls that are positioned at diverse location, and light one of two lamp pearls respectively by switch control, promptly reach the difference illumination purpose of optically focused or astigmatism, and for example adopt adjustable scheme in lamp pearl position or the like, the characteristics of this class scheme all are the changes that is conceived to the lamp pearl, and its shortcoming is that its structure must be than original complexity, and when using or optically focused, astigmatism, and can not take into account simultaneously.
The flashlight of the purpose of this utility model with regard to being to provide a kind of optically focused, astigmatism to take into account at above-mentioned prior art present situation.
Design of the present utility model is: do not change stack shell, the lamp pearl structure of existing flashlight, and from changing the reflective mirror staff, it is characterized in that reflective mirror is concave shape, and its centre roughly is parabolic, its position, outer then is non-parabola.
The position, outer of described reflective mirror can be to be by the facet mirror edge of a plurality of fan trellis to piece together the shape that forms; The centre of described reflective mirror can be to be by a plurality of fan bar edges to piece together the shape that forms.
Reflective mirror of the present utility model has played optically focused and two effects of astigmatism simultaneously: the parabola in its centre is the same with prior art to play the optically focused effect, and the non-parabola at position, outer then plays the effect of even astigmatism; Compared with prior art, the utility model is simple in structure, makes easily, and need not to switch when using.
Description of drawings:
Fig. 1 is a perspective view of the present utility model.
Fig. 2 is a structure cross-sectional schematic of the present utility model.
Fig. 3 is the partial enlarged drawing of Fig. 2.
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
As shown in Figure 1 and Figure 2, poly-astigmatic flashlight is provided with reflective mirror 3, lamp pearl 2, lamina of septum pellucidum 4 at the head of stack shell 1, wherein the centre 31 of reflective mirror 3 roughly is parabolic, in the present embodiment for piecing together the shape that forms by a plurality of fan bar edges, and it is parabolic that its general curvature is, the position, outer 31 of reflective mirror 3 then is by the facet mirror edge of a plurality of fan trellis and pieces together the shape that forms, and its general curvature is non-parabola, the curvature that is its general curvature is greater than or less than paraboloidal curvature, referring to Fig. 3; Described lamp pearl 2 (or its filament) is then the same with prior art to be arranged on the parabolic focus in reflective mirror centre 31.
Like this, when lamp pearl 2 was lighted, the light part that it sends was shown the directional light ejaculation greatly after being 31 reflections of paraboloidal reflective mirror centre, and another part then penetrates with diverging light by the 32 reflection backs, position, outer of reflective mirror.So when actual illumination, the formed aperture of torch emergent light has one lessly than the highlights position for middle, a bigger dark position is arranged around simultaneously again, therefore has the effect of optically focused and astigmatism concurrently.
Claims (3)
1. poly-astigmatic flashlight comprises stack shell and is arranged on reflective mirror, the lamp pearl of its head, it is characterized in that described reflective mirror is concave shape, and its centre roughly is parabolic, and its position, outer then is non-parabola.
2. poly-astigmatic flashlight as claimed in claim 1, the position, outer that it is characterized in that described reflective mirror are by the facet mirror edge of a plurality of fan trellis and piece together the shape that forms.
3. poly-astigmatic flashlight as claimed in claim 1 or 2 is characterized in that the centre of described reflective mirror is the shape that is formed by the assembly of a plurality of fan bar edge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00263368 CN2457439Y (en) | 2000-12-18 | 2000-12-18 | Flashlight capable of focusing light |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00263368 CN2457439Y (en) | 2000-12-18 | 2000-12-18 | Flashlight capable of focusing light |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2457439Y true CN2457439Y (en) | 2001-10-31 |
Family
ID=33618378
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00263368 Expired - Fee Related CN2457439Y (en) | 2000-12-18 | 2000-12-18 | Flashlight capable of focusing light |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2457439Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101676597B (en) * | 2004-08-20 | 2012-07-04 | 美光工具公司 | Improved led lighting device |
-
2000
- 2000-12-18 CN CN 00263368 patent/CN2457439Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101676597B (en) * | 2004-08-20 | 2012-07-04 | 美光工具公司 | Improved led lighting device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |