DK168266B1

DK168266B1 - Illuminated umbrella or parasol

Info

Publication number: DK168266B1
Application number: DK106591A
Authority: DK
Inventors: Ib Raegaard Andreasen
Original assignee: Ib Raegaard Andreasen
Priority date: 1988-12-05
Filing date: 1991-06-04
Publication date: 1994-03-07
Also published as: DK106591D0; DK106591A

Description

i DK 168266 B1in DK 168266 B1

Opfindelsen angår en paraply eller parasol af den art, der er angivet i krav l's indledning.The invention relates to an umbrella or parasol of the kind set forth in the preamble of claim 1.

US-A-3.275.815 omhandler paraplyer eller parasoller af 5 denne art, hvori betrækkets inderside belyses ved hjælp af en enkelt lysspredende indretning, der forsynes med lys gennem en lysleder, som fører fra lyskilden, i reglen en batteridreven elektrisk lyspære, der er anbragt i eller i nærheden af paraplyens eller parasollens håndtag. Anven-10 delsen af en enkelt lysspredende indretning har imidlertid vist sig utilstrækkelig til at tilvejebringe en rimeligt ensartet belysning af det hele af betrækkets inderside.US-A-3,275,815 discloses umbrellas or umbrellas of this kind in which the interior of the cover is illuminated by a single light-scattering device provided with light through a light conductor leading from the light source, usually a battery-powered electric light bulb which is placed in or near the umbrella or umbrella handle. However, the use of a single light scattering device has proved insufficient to provide a reasonably uniform illumination of the entire interior of the cover.

Det er opfindelsens formål at anvise en paraply eller 15 parasol af den indledningsvis nævnte art, hvormed det er muligt at opnå en mere ensartet belysning af betrækkets inderside end hvad der tidligere har været muligt, og dette formål opnås med en paraply eller parasol, som ifølge opfindelsen yderligere udviser de træk, der er 20 angivet i krav l's kendetegnende del. Med denne anordning opnås, at betrækkets inderside belyses af to indbyrdes uafhængige lysspredende indretninger, der gør det betydeligt nemmere at tilvejebringe en ensartet belysning af betrækkets inderside.It is an object of the invention to provide an umbrella or umbrella of the kind mentioned above, by which it is possible to obtain a more uniform illumination of the inside of the cover than has previously been possible, and this object is achieved with an umbrella or umbrella, which according to the invention further exhibits the features set forth in the characterizing portion of claim 1. With this arrangement, the inside of the cover is illuminated by two mutually independent light scattering devices, which makes it much easier to provide uniform illumination of the inside of the cover.

25 Hensigtsmæssige udførelsesformer for paraplyen eller parasollen ifølge opfindelsen, hvis virkninger er forklaret i den efterfølgende specielle del af nærværende beskrivelse, er angivet i krav 2-10.Suitable embodiments of the umbrella or umbrella according to the invention, the effects of which are explained in the following special part of this specification, are set out in claims 2-10.

Opfindelsen skal i det følgende forklares nærmere under 30 henvisning til tegningen, på hvilken fig. 1 er et oversigtsbillede af et udførelseseksempel på en belyst paraply ifølge opfindelsen, set fra siden og delvis i snit, DK 168266 B1 2 fig. 2 er et lodret snit, der viser overgangsområdet mellem den ydre lysleder og de tilknyttede spejlflader, 5 fig. 3 viser de i fig. 2 viste spejlflader, set nedefra, fig. 4 er et lodret snit, der viser overgangsområdet mellem den indre lysleder, de hertil knyttede spejlflader og yderligere organer, der forsynes med lys fra disse spejlflader, 10 fig. 4a viser det i fig. 4 viste organ, der bærer de lysreflekterende overflader, set nedefra, og fig. 5 og 6 er skematiske lodrette snit, der viser lysledernes nederste ender og lyskilden med sidstnævntes elektriske lyspære i to forskellige stil-15 linger.The invention will be explained in more detail below with reference to the drawing, in which 1 is a side view of an embodiment of an illuminated umbrella according to the invention, viewed from the side and partly in section, FIG. 2 is a vertical section showing the transition area between the outer light guide and the associated mirror surfaces; FIG. 3 shows those in FIG. 2 is a bottom view shown in FIG. 4 is a vertical sectional view showing the transition area between the inner light guide, the associated mirror surfaces and additional means provided with light from these mirror surfaces; FIG. 4a shows that in FIG. 4 is a bottom view of the carrier carrying the light reflecting surfaces; and FIG. 5 and 6 are schematic vertical sections showing the lower ends of the light guides and the light source with the latter's electric light bulb in two different positions.

Den i fig. 1 viste paraply 1 omfatter på sædvanlig måde et paraplyskaft 2 og et betræk 3, idet sidstnævnte holdes i den viste åbne stilling af et antal ribber 4 understøttet af stivere 5 på en glider 6, hvormed betrækket 13 kan 20 klappes sammen på sædvanlig måde ved at bevæge glideren 6 hen imod håndtaget 7.The FIG. 1, the umbrella 1 shown in the usual manner comprises an umbrella shaft 2 and a cover 3, the latter being held in the open position shown by a plurality of ribs 4 supported by struts 5 on a slider 6, whereby the cover 13 can be folded in the usual manner by move the slider 6 toward the handle 7.

I det i fig. 1 viste udførelseseksempel på en paraply ifølge opfindelsen omfatter håndtaget 7 et ikke vist batteri, en elektrisk lyspære 8, en reflektor 9 og en 25 linse 10, idet sidstnævnte tre genstande er vist i fig. 5 og 6.In the embodiment of FIG. 1 shows an embodiment of an umbrella according to the invention, the handle 7 comprises a battery not shown, an electric light bulb 8, a reflector 9 and a lens 10, the latter three objects being shown in FIG. 5 and 6.

Det i fig. 1 viste udførelseseksempel omfatter også forskellige optiske organer, der skal beskrives i det følgende, hvormed 30 - lys kan rettes mod indersiden af betrækket 3 i dettes centrale og perifere område, lys kan ledes gennem ribberne 4 til et antal lysspredende ribbehætter 11, og lys kan ledes til en lysspredende skaftspids 12.The FIG. 1 embodiment also comprises various optical means to be described hereinafter by which 30 light can be directed to the inside of the cover 3 in its central and peripheral region, light can be passed through the ribs 4 to a plurality of light scattering rib caps 11, and light can lead to a light-scattering shaft tip 12.

DK 168266 Bl 3DK 168266 Pg 3

Som det navnligt kan ses fra fig. 2, 5 og 6 omfatter paraplyen ifølge opfindelsen en indre lysleder 13, og koaksialt med denne en ydre lysleder 14.As can be seen in particular from FIG. 2, 5 and 6, the umbrella according to the invention comprises an inner light guide 13, and coaxially with it an outer light guide 14.

5 Udgangsenden 15 på den ydre lysleder 14 er indrettet til at udstråle lys hen imod et antal konkave spejlflader 16, der er indrettet til at reflektere lyset fra udgangsenden 15 hen imod de ikke-centrale områder på paraplybetrækket 3. For at gøre den vinkel 17, over hvilken lyset fordeles 10 i lodret retning (dvs. parallelt med skaftet 2), mindre end den vinkel 18, over hvilken lyset fordeles i omkredsretningen, for derved at sikre en rimeligt ensartet belysning af betrækket 3 med mindst muligt lys tabt under dets kant, er de konkave spejlflader formet med dobbelt krum-15 ning, så de bliver "astigmatiske”. Ved sammenligning af fig. 2 og 3 vil det kunne ses, at denne astigmatisme frembringer to brændpunkter, dvs. et "lodret" brændpunkt 19 og et "vandret" brændpunkt 20, idet sidstnævnte befinder sig mærkbart nærmere den fælles optiske akse 21 end 20 førstnævnte.The output end 15 of the outer light guide 14 is arranged to radiate light towards a plurality of concave mirror surfaces 16 arranged to reflect the light from the output end 15 towards the non-central areas of the umbrella cover 3. To make it angle 17, over which light 10 is distributed vertically (i.e., parallel to shaft 2), less than the angle 18 over which light is distributed in the circumferential direction, thereby ensuring a reasonably uniform illumination of cover 3 with as little light as possible lost below its edge, the concave mirror surfaces are shaped with double curvature so that they become "astigmatic". By comparing Figures 2 and 3 it can be seen that this astigmatism produces two focal points, i.e. a "vertical" focal point 19 and a "focal point". "focal point 20, the latter being noticeably closer to the common optical axis 21 than the former 20.

Mens den ydre lysleder 14 ender ved sin udgangsende 15 stort set ved samme niveau som den øverste ende af glideren 6 i dennes øverste stilling som vist i fig. 1, fortsætter den indre lysleder 13 opad til et punkt 25 betydeligt nærmere den øverste del af betrækket 3, hvor den ender i en udgangsende 22, som i det viste udførelseseksempel er sammensat af et centralt plant område 23 og et perifert keglestubformet område 24 (venligst bemærk, at målestokken i fig. 4 er det dobbelte af målestokken i fig.Whereas the outer light guide 14 ends at its output end 15 at substantially the same level as the upper end of the slider 6 in its upper position as shown in FIG. 1, the inner light guide 13 proceeds upward to a point 25 substantially closer to the upper portion of cover 3, where it terminates at an output end 22, which in the illustrated embodiment is composed of a central flat region 23 and a peripheral cone-shaped region 24 (please Note that the scale of Fig. 4 is twice the scale of Fig.

30 2 og 3, hvis målestok igen er det dobbelte af den i fig. 5 og 6). Det lys, der udstråler fra det perifere område 24, reflekteres af et antal konkave spejlflader 25 og spredes således udad og opad fordelt gennem en "lodret" vinkel 26 for derved at belyse det centrale område i det i fig. 1 35 viste betræk 3.30 2 and 3, the scale of which is twice that of FIG. 5 and 6). The light radiating from the peripheral region 24 is reflected by a plurality of concave mirror surfaces 25 and thus diffuses outwardly and upwardly distributed through a "vertical" angle 26, thereby illuminating the central region of the FIG. 1 35 shown.

DK 168266 B1 4 På dette sted bør det bemærkes, at det hule organ 27, hvorpå de konkave spejlflader 25 er udformet, i fig. 4 er vist med sine øvre og nedre dele beliggende over henholds-5 vis under et vandret plan 28 indbyrdes drejet gennem en lille vinkel om den optiske akse 21 af grunde, der vil fremgå af det følgende.In this place it should be noted that the hollow member 27 on which the concave mirror surfaces 25 are formed, in FIG. 4 is shown with its upper and lower portions located respectively above a horizontal plane 28 rotated mutually through a small angle about the optical axis 21 for reasons which will be apparent from the following.

De konkave spejlflader 25 er udformet på et antal "tænder" 29. Som det vil kunne ses ved samtidig betragt- ning af 10 fig. 4a og fig. 4, tillader mellemrummene mellem nabo-tænder 29 noget af lyset fra udgangsenden 22 at nå et yderligere sæt konkave spejlflader 30, der er udformet på den øverste ende af det nævnte hule organ 27 og er indrettet til at reflektere dette lys ind i indgangsenderne 31 15 på et antal lysledere 32, hvis udgangsender er omgivet af endehætter 11 af gennemsigtigt eller gennemskinneligt materiale, der er i stand til at sprede det lys, som de modtager fra udgangsenderne 33. Lyslederne 32 er fortrinsvis indrettet til at strække sig langs med eller inden i 20 de i fig. 1 viste paraplyribber 4, idet endehætten 11 i sidstnævnte tilfælde også udgør de ribbehætter, som på sædvanlig, ikke vist måde, er indrettet til at fastgøre betrækket 3 til de enkelte ribber 4.The concave mirror surfaces 25 are formed on a plurality of "teeth" 29. As can be seen in the simultaneous consideration of FIG. 4a and fig. 4, the spaces between neighboring teeth 29 allow some of the light from the output end 22 to reach a further set of concave mirror faces 30 formed on the upper end of said hollow member 27 and arranged to reflect this light into the input ends 31 on a plurality of light conductors 32 whose output ends are surrounded by end caps 11 of transparent or translucent material capable of dissipating the light they receive from the output transmitters 33. The light conductors 32 are preferably arranged to extend along or within 20 which is illustrated in FIG. 1, the end cap 11, in the latter case also constituting the rib caps, which in the usual manner, not shown, are arranged to attach the cover 3 to the individual ribs 4.

De konkave spejlflader 25 og/eller 30, der er vist i fig.The concave mirror faces 25 and / or 30 shown in FIG.

25 4, kan have en dobbelt krumning, dvs. være "astigmatiske", på samme måde som beskrevet ovenfor under henvisning til de konkave spejlflader 16, der er vist i fig. 2 og 3.25 4 may have a double curvature, i.e. be "astigmatic" in the same manner as described above with reference to the concave mirror surfaces 16 shown in FIG. 2 and 3.

Som vist i fig. 4 kan lys fra det centrale plane område 23 på udgangsenden 22 på den indre lysleder 30 strømme gennem 30 det centrale hulrum 35 i det hule organ 27 til den neder-ste ende af skaftspidsen 12, idet sidstnævnte er fremstillet af gennemsigtigt eller gennemskinneligt materiale og på passende måde indrettet til at udstråle det lys, som den på denne måde modtager fra den indre lysleder 13.As shown in FIG. 4, light from the central plane region 23 at the output end 22 of the inner light guide 30 can flow through the central cavity 35 of the hollow member 27 to the lower end of the shaft tip 12, the latter being made of transparent or translucent material and appropriately arranged to radiate the light it receives in this way from the inner light guide 13.

DK 168266 B1 5 I fig. 4 er både skaftspidsen 12 og endehætterne 11 vist som bestående af gennemskinneligt materiale, som vides at fordele modtaget lys på en diffus måde. Det bør imidler-5 tid bemærkes, at disse legemer kan bestå af gennemsigtigt materiale med matte overflader, idet dette giver tilnærmelsesvis den samme virkning. For god ordens skyld bør det også nævnes, at betegnelsen "lysleder" i nærværende beskrivelse anvendes til at betegne et legeme af gennem-10 sigtigt materiale med en indgangsende og en udgangsende og med en sådan udformning mellem disse ender, at der ved de ydre overflader mellem de nævnte ender indtræder i alt væsentligt total indvendig refleksion.DK 168266 B1 5 In fig. 4, both the shaft tip 12 and the end caps 11 are shown as consisting of translucent material which is known to diffuse received light in a diffuse manner. However, it should be noted that these bodies may consist of transparent material with matte surfaces, giving this approximately the same effect. For the sake of good order, it should also be mentioned that the term "light conductor" in this specification is used to denote a body of transparent material having an entrance end and an outlet end and having such a design between these ends that at the outer surfaces between the said ends, substantially total internal reflection occurs.

Fig. 5 og 6 viser, hvorledes lyset fra den elektriske 15 lyspære 8 kan rettes hovedsageligt mod den ydre lysleder 14, jf. fig. 5, eller mod den indre lysleder 13, jf. fig.FIG. 5 and 6 show how the light from the electric light bulb 8 can be directed mainly towards the outer light conductor 14, cf. 5, or towards the inner light guide 13, cf.

6. Ændringen udføres ved at bevæge lyspæren aksialt fra den stilling, der er vist i fig. 5, til den stilling, der er vist i fig. 6, idet lyspæren 8 fortrinsvis er mekanisk 20 forbundet på en ikke vist måde til en fokuseringsknap 36 på det i fig. 1 viste håndtag 7. Det er således ved at forskyde lyspæren 8 fra den i fig. 5 til den i fig. 6 viste stilling muligt at forskyde den maksimale belysningsintensitet fra det ikke-centrale område af betrækket 25 3 til dettes centrale område tillige med ribbehætterne 11 og skaftspidsen 12. I stedet for den ene bevægelige lyspære 8, der er vist i fig. 5 og 6, er det også muligt at anvende to særskilte lyspærer, der er indrettet til at aktiveres skiftevis eller samtidigt.6. The change is effected by moving the light bulb axially from the position shown in FIG. 5 to the position shown in FIG. 6, the light bulb 8 being preferably mechanically 20 connected in a manner not shown to a focusing button 36 in the embodiment shown in FIG. 1 is thus displaced by the light bulb 8 from the one shown in FIG. 5 to that of FIG. 6, the maximum illumination intensity can be shifted from the non-central region of cover 25 3 to its central region together with the rib caps 11 and the shaft tip 12. Instead of the one movable light bulb 8 shown in FIG. 5 and 6, it is also possible to use two separate light bulbs arranged to be operated alternately or simultaneously.

30 Fig. 2-6 foregiver ikke på nogen måde at vise geometrisk eksakt udformningerne af de forskellige optisk aktive overflader, såsom overfladerne på de konkave spejlflader 16, 24 og 30, de forskellige lyslederes indgangs- og udgangsender, samt overfladerne på reflektoren 9 og linsen 35 10. En person med grundkundskaber i optik vil imidlertid være i stand til at vælge den rigtige udformning af de DK 168266 B1 6 pågældende overflader og/eller det materiale, der skal anvendes.FIG. 2-6 do not in any way pretend to exhibit geometrically exact designs of the various optically active surfaces, such as the surfaces of the concave mirror surfaces 16, 24 and 30, the input and output ends of the various light guides, as well as the surfaces of the reflector 9 and the lens 35 10. However, a person with basic knowledge of optics will be able to choose the right design for the surfaces in question and / or the material to be used.

Ud over skaftet 2, betrækket 3, ribberne 4, stiverne 5 og 5 glideren 6 viser tegningen ingen af de mekaniske dele af paraplyen 1 ifølge opfindelsen. En person med fornøden fagkundskab vil imidlertid på grundlag af nærværende beskrivelse være i stand til at konstruere og opbygge disse mekaniske dele på passende måde for at gøre dem i 10 stand til at opfylde sine funktioner, men det kan nævnes, at et metalrør 37 i mellemrummet mellem de indre og ydre lysledere 13 henholdsvis 14 kan anvendes til at give paraplyskaftet 2 en tilstrækkelig stivhed. Ved samling af paraplyen bør der drages omsorg for, at de konkave spejl-15 flader 16, der er vist i fig. 2 og 3, orienteres i forhold til aksen 21 på en sådan måde, at det lys, der reflekteres fra disse overflader, ikke blokeres af stiverne 5.In addition to the shaft 2, the cover 3, the ribs 4, the struts 5 and 5 the slide 6, the drawing shows none of the mechanical parts of the umbrella 1 according to the invention. However, a person skilled in the art will, on the basis of this specification, be able to construct and construct these mechanical parts appropriately to enable them to perform their functions, but it may be mentioned that a metal tube 37 in the gap between the inner and outer light guides 13 and 14, respectively, can be used to give the umbrella shaft 2 a sufficient rigidity. When assembling the umbrella care should be taken to ensure that the concave mirror surfaces 16 shown in FIG. 2 and 3 are oriented relative to axis 21 in such a way that the light reflected from these surfaces is not blocked by the struts 5.

Håndtaget 7 kan omfatte en gennemskinnelig eller gennem-20 sigtig zone 38, der tillader noget af lyset fra pæren 8 til at udstråle gennem denne zone.The handle 7 may comprise a translucent or translucent zone 38 which allows some of the light from the bulb 8 to radiate through this zone.

Dersom det ønskes, kan ribbehætteme 11, skaftspidsen 12 og/eller zonen 38 på håndtaget 7 omfatte fluorescerende materiale, f.eks. at den art, der fortsætter at udstråle 25 lys i nogen tid efter at det selv ikke længere bestrå les.If desired, the rib caps 11, the shaft tip 12 and / or the zone 38 of the handle 7 may comprise fluorescent material, e.g. that the species that continues to emit 25 lights for some time after it is no longer irradiated.

I stedet for skaftspidsen 12 er det muligt at anvende et organ, der omfatter spejlflader, som er indrettet til at reflektere lys, der er modtaget gennem det centrale hulrum 30 35, i nedadgående retning på en sådan måde, at oversiden af betrækket 3 belyses. En kombination af de to principper kunne også anvendes.Instead of the shaft tip 12, it is possible to use a means comprising mirror surfaces arranged to reflect light received through the central cavity 30 35 in a downward direction in such a way that the upper surface of the cover 3 is illuminated. A combination of the two principles could also be used.

DK 168266 Bl 7DK 168266 Pg 7

Genstandsfortegnelse 1 paraply 35 centralt hulrum 2 skaft 36 fokuseringsknap 3 betræk 37 metalrør 4 ribbe 38 genneskinnelig/- 5 stiver gennemsigtig zone 6 glider 7 håndtag 8 (lys-)pære 9 reflektor 10 linse 11 endehætte/ribbehætte 12 skaftspids/lysspredende organ 13 indre lysleder 14 ydre lysleder 15 udgangsende (på 14) 16 konkav spejlflade 17 vinkel (lodret) 18 vinkel (vandret) 19 "lodret" brændpunkt 20 "vandret" brændpunkt 21 akse 22 udgangsende (på 13) 23 centralt plant område 24 perifert keglestubformet område 25 konkav spejlflade 26 "lodret" vinkel 27 hult organ 28 plan 29 tænder 30 (25) 31 indgangsende 32 lysledere 33 udgangsendeList of objects 1 umbrella 35 central cavity 2 shaft 36 focus button 3 cover 37 metal tube 4 rib 38 transparent / - 5 stiff transparent zone 6 slide 7 handle 8 (light) bulb 9 reflector 10 lens 11 end cap / rib cap 12 shaft tip / light scattering device 13 inner light guide 14 external light guide 15 exit end (on 14) 16 concave mirror surface 17 angle (vertical) 18 angle (horizontal) 19 "vertical" focal point 20 "horizontal" focal point 21 axis 22 exit end (on 13) 23 central flat region 24 peripheral cone stub shaped region 25 concave mirror surface 26 "vertical" angle 27 hollow member 28 plane 29 teeth 30 (25) 31 input end 32 light guide 33 output end

Claims

An umbrella (1) or umbrella of the kind comprising 5 (a) a light source (8,9,10) located near or in the handle of the umbrella or umbrella (7); (b) at least one elongated light guide (13,14) extending from an entrance end near or near said light source towards said umbrella 10 or umbrella cover (3), and (c) at least one light scattering means (16,25,30) which arranged to direct the light transmitted by said light-conductor or conductors (13,14) from said light source, away from the light-conductor or conductors, characterized by (d) at least two light-conductors (13,14), of which dl) a first light guide (13) extends to a short distance below the cover (3) and is directed to direct light towards first light-scattering means (25) located close to and below the cover (3) and into directed to direct light received from said first light guide toward the central region of the interior of the cover, and d. 2) another light guide (14) extends to a location at a greater distance below the cover and is adapted to direct light towards other light scattering means (16) adapted to direct light received from said second light guide; towards areas outside said central area on the inside of the cover.

Umbrella or umbrella according to claim 1, characterized in that: (a) the two light guides (13,14) are coaxial with the first (13) within the second (14), and b) at least one of the light guides (13) , 14) is arranged to direct light substantially axially from its output end towards light scattering means in the form of a set of reflectors (16,25,30) adapted to reflect light 5 largely radially outward.

Umbrella or umbrella according to claim 1 or 2, characterized by third light-scattering means (30) located between the cover (3) and said first light-scattering means (25) and arranged to direct light 10 received from the latter, towards the inward-facing input ends (31) of a set of third light conductors (32), whose outward-facing output ends (33) are located close to the outer free edge of the cover (3) and are optically connected to light-scattering means (11).

An umbrella or parasol according to claims 2 and 3, characterized in that the reflector sets (25.30) associated with the output end of the first light guide (13) consist of two sub-sets, namely a) a first sub -set (25), wherein the reflectors are distributed around the optical axis (21) of the first light guide (13) at light-permeable intervals (between teeth 29. between them, and b) a second sub-set (30) at a greater distance from said first light guide (13) than said first subset 25 (25), and wherein said reflectors are distributed around said optical axis (21) and located in positions where they can receive light reaching them from said first light guide (13) exiting through said light-permeable spaces.

An umbrella or umbrella according to one or more of claims 2-5, characterized in that each set of reflectors (16,25,20) comprises a plurality of concave mirror surfaces.

Umbrella or umbrella according to claim 5, characterized in that at least some of said concave mirror surfaces (16,25,30) have a focal length such that parallel rays from the associated light conductors (14,13) exit ends 5 are caused to intersect at points located a short distance from the mirror surfaces.

Umbrella or umbrella according to claim 6, characterized in that at least some of said concave mirror surfaces have double curvature (are astigmatic) in such a way that said crossing points appear to be closer to said optical axis (21). when viewed in a direction parallel to said axis (e.g., Fig. 3) than when viewed perpendicular thereto (e.g., Fig. 4).

An umbrella or umbrella according to one or more of claims 2 to 7, characterized by an upper light-scattering means (12) extending upwardly of the cover (3) and adapted to receive light from said first light guide (13) output end, e.g. through a central hole (35) in member (27) carrying the mirror surfaces (25., 30) attached to the first light guide (13).

8 DK 168266 B1

Umbrella or umbrella according to one or more of claims 1 to 7, characterized in that a connecting means which optically connects the light source to the input ends of the light conductors (13,14) consists, at least in part (38), of transparent or translucent. material in such a way that light from the light source can be radiated from the external surface of the means between the light source and said input transmitters.

Umbrella or umbrella according to one or more of claims 1 to 9, characterized in that the light source comprises a light bulb (8) and a collecting lens (10) arranged between it and the input ends of said light guides (13,14). the light bulb (8) and the collecting lens (10) along the optical axis of the latter can be adjusted by a hand-operated actuator (36) in such a way that the light from the lens (10) strikes the input end at one or the other of the the two light conductors (13,14).