DE8406285U1 - REFLECTOR FOR STICK LAMPS WITH A SPECIFICALLY TRAINED REFLECTIVE SURFACE - Google Patents

Description

• It «··· · (ι

" ³ ^ 23/02/1984 / et R 9226

VELAMP S.p.A.

IT - 21040 VENEQONO SUPERlORE (Varese)

Entrance gate for staff members with a specially trained reflective surface

The present innovation relates to a reflector for Flashlights with a specially designed reflective surface.

As is known, a reflector is used for rod lamps 5. water from a base for the generally single light source and a surface clad with reflective material to direct the light rays into the desired direction conduct. The Sanze is connected to the lamp body, which the Battery contains known means,

1CL In the ßeflefcfeör der herkämfliöhen Stablaiperi the reflecting surface is essentially formed from a paraboloid in order to reflect the light rays parallel to the axis of the paraboloid. This makes the light bulb ideal

directed. Sas has the power

15. That a heel that, for example, a poorly lit one Walk away and illuminate part of the day with a flashlight

• · Bt *

must, forced to direct the light source at your feet alternately downwards and forwards, in order to avoid any further Finding distant obstacles on the way came to de es it is not possible to illuminate both zenas at the same time.

5. The present charter has therefore set itself the task of to realize a reflector for establishments, feel the the reflective surface, usually for a single Light source is intended to be designed in such a way that the tenutser has a large view over a concentrated area of light 10. At the same time About one diffused lighting in another different area, for example below within walking distance can.

Another job is to use a reflector to be realized at a modest cost /

15. The object was achieved in that the reflective Surface consists of at least two paraboloid parts, whose Axes themselves in accordance with the corresponding ones Intersecting foci »where the source of Leught in the Arranged intersection of the axes of the two paraboloid parts

20th is.

A special solution provides that the two surfaces Mldeaöen Papa & eööidteile the ^ oak

Another variant provides that the paraboloid parts uaterseMedliGtie focal points tmd sends various itönkawitSten

to have,

Another solution provides that the paraboloid parts dureh Connection surfaces are connected.

The "innovation" is shown below with reference to the attached drawing 5. described. Show it:

Fig. 1 is a side view of the new one

Pig. 2 one front view of the new reflector, 1 ©. Fig. 3 is a sectional view,

Fig. 4 is a shadow representation of the mutual Relationships that the two semi-parabolas that

for example a reflective surface of a

ßef lektoi-s - according to the present innovation Mliten,

15. must have,

Fig. 5 is a visual representation of a variant of a reflective surface consisting of two parabolic oids Mt the focal point is formed.

Me Figures 1, 2 and 3 show a nicer «ngsgeittäßes: Ref lek

20th goal to. it: ste & t for example da & eb eiaea Sdiraiibriag Mt the (not shown) I ^ penf body through an iCcsitaktmittel 12 in VerMiidis ^; inside finted see Lanpenssekel for Me light source 16. BesCTidere attention was paid to the formation of the reflective surface - 14, the inside like this

25. Is designed * that it is a mirror flacte for reflection of the light rays emitted by the light source 16

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having. As can be seen from the figures, the Surface made up of two semi-parabolic lines 14a and 14b, which go through Ansehiussfisehan mutually connected.

As is well known, a parabolic fish is one of a parabola

9 · generated plane of revolution. The parabola is mathematically called

Place the equally distant points from a fixed point,

called the focal point, and a solid line called the guideline, certainly; thereby the focus and guideline determine the

Concavity of the parabola. Another distinguishing parameter

10 · the parabola is the axis that is determined as the perpendicular, the leads from the focus to the guideline and that also leads to the

Forms axis of symmetry. This results in the basic one

optical property, according to which the rays one in the ffcennpunkt arranged light source after the reflection on the parabola for

¹ 5 · axis of the parabola itself emit parallel rays.

These properties are used in order to expediently select the parabolic oil surfaces which, expediently combined, form the reflective surfaces. One solution provides that two semi-parabolic oids are chosen: the first PI (Fig. 4) has one

²⁰ * axis A1 on which the focal point FI is located; the second P2 has the axis A2 which overlaps with the axis A1 of the first parabola P1 in coincidence of its focal point F2, so that Pf Mt F2 also fails. The light source is arranged on this steep slope. With this solution, the

25. Both semi-paraboloids have different focal points.

From the foregoing it is clear that the

the surface PI reflected light rays RI forward directed «and realize a far-reaching, concentrated light beam. The light rays R2 in turn become parallel to the axis A2, i.e. in this case reflected downwards from the expediently arranged 5th surface P2. Of course, a reversed solution can be provided in which the semi-paraboloid has an oblique axis opposite the horizontal is arranged above.

Air? in this way enables the with one of the combination of 10. Two semi-paraboloids formed surface reflector ~ den ». User of the lamp a diffused lighting in Foot height and a far-reaching, concentrated beam of light. the The projection of the light beam has a particular irregular elliptical shape. 15th

FIG. 5 shows a variant according to which the two semi-paraboloids P3 and P4 have the same focal points F3 and F4 to have. In addition, the semi-paraboloid P4 with an inclined axis A4 is at the top with respect to the horizontal axis A3 inclined axis A4 20. angew <Ji »e '.. The light bundles are in any case in two different * Areas directed.

It is also possible that the reflective surface is formed from several paraboloid parts, the axes of which are in 25. Coordination with the corresponding focal points in which the Light source is arranged, overlap. The focal points can be either the same or different.

It is obvious that the above explanations should serve as a teaching * ». '

for the realization 4ir "r reflective surface on any scale is equal to consider depending on the vorbestüimten purpose.

11.t nt, HL * WI-i

Claims (1)

PATENT- BARDEHLE, PAQSNBIlO * ^: Dbff | * MT £ fSÜ $ MFta & PARTNER LAWYERS PATENTANWÄLTE - EUROPEAN 4PCHEH PAQENBERG ο * ju *. u. - hwwhp »HEINZ BARPEHLE wn ma BERNHARD FROHWtTTER pm, * m · WOWFSAN © A. POST ■ *. O*. chc « GONTEB FRHR. v. ORAVENREUTH »« .- · «α-κ, - UDO W. ALTENBURG POSTBOX 60β2Ο. SOOO MONKS «6 TELEPHONE (Οββ) 9βΟ361 TELEX B »7M | Md fJ CABLE: PAPBORO MONKS BORG: QALILEIPLATZ 1. S MÖNCHEN Date 23.2.1984 / st R 5226 Protection claims 1. Ke £ iek * 0T · for rod lamps with at least one Base for the light source, one from the light source emitted light rays reflecting surface and tinem Element for the contact with the lamp body, thus identifiable 5. indicates that the reflective surface (14) from at least two paraboloid parts (14a, 14b), whose axes (A1, A2, A3. A4) in accordance with the corresponding) focal points Overlap, the light source (16) at the intersection of the • Axes CAt ₁ A2, A3, A4) of the paraboloid parts is arranged. . 2. reflector for rods according to claim 1, characterized in that the focal points (F3, FA) of the paraboloid parts are the same. 3. reflector for Stablaipen according to claim 1,! characterized in that the focal points (FI, F2) of the Paraboloid parts are different. 4. reflector for flashlights according to claim 1, 5 · characterized in that the paraboloid parts (14a, 14b) through Connection surfaces are connected. ■ · ■ III fill · <· »I I III! > I) III • “Ulli Il ι ι ι ι t ·. · (I ■ ·. Ι Ii ι M I tr ι itii ti ill