SE186601C1

SE186601C1 -

Info

Publication number: SE186601C1
Authority: SE
Publication date: 1963-01-01

Description

Uppfinnare: L Leitz Prioritet begard tram den 19 september 1956 (Forbundsrepubliken Tyskland) Foreliggande uppfinning avser en lysrorsarmatur med foretradesvis plana reflektorytor samt med anordning for eliminering av blandning i sidled. Inventor: L Leitz Priority requested tram on 19 September 1956 (Federal Republic of Germany) The present invention relates to a fluorescent luminaire with preferably flat reflector surfaces and with a device for eliminating lateral mixing.

Hos kanda armaturer av detta slag Oro nedanfor lysroren eller nedanfbr reflektorerna anordnade lameller eller gallerblandare vinkelratt mot lysrorets axel. Det Or dessutom kant, att lamellerna forses med en icke reflekterande t. ex. matt eller svartad yta. Ljus-skugga-gransen, dvs. det bldndningsfria rummet, kan dã sett i roraxelns riktning Wallas Mom ett visst vinkelomrade beroende pa lamellernas inbordes avstand och deras storlek. De pa lamellvaggarna infallande ljusstralarna ga emellertid forlorade for belysning av arbetsplatsen, enar utstralningen Or diffus. Om lamellernas ytor enligt en annan metod forses med ett reflekterande skikt, kan ljus-skuggagransen ej valjas efter onskan. In the case of luminaires of this type. It Or further edge, that the slats are provided with a non-reflective e.g. matt or blackened surface. The light-shadow border, ie. the glare-free space, can then be seen in the direction of the rudder shaft Wallas Mom a certain angular range depending on the distance of the slats' inboard and their size. However, the light rays incident on the lamella walls were lost for illumination of the workplace, the radiation is diffuse. If the surfaces of the slats according to another method are provided with a reflective layer, the light shadow border cannot be selected as desired.

Genom namnda skikt reflekteras namligen det mellan lamellerna intradande stralknippet pa sa.dant satt, att. det uttradande knippets Oppningsvinkel och det intrOdande knippets oppningsvinkel aro lika stora under forutsattning, att lamellerna forlopa parallellt med varandra och vinkelratt mot rorets axel, dvs. att den av tva lameller bildade intradesoppningen Or lika stor som uttradesoppningen. Ett knippe med en Oppningsvinkel av nastan 1800 (bortsett fran gransfallet) uttrader salunda med samma stralnings°made. Sadana forhallanden intrada hos Blida lysror till foljd av rorets langdutstraclming resp. Oven genom att liken omedelbart angransa till lamellerna. Namely, the said beam reflects the beam of beams which enter between the lamellae in such a way that. the opening angle of the emerging bundle and the opening angle of the emerging bundle are equal, provided that the slats run parallel to each other and perpendicular to the axis of the rudder, i.e. that the intradesoping Or formed by two lamellae is as large as the exitdesing. A bundle with an opening angle of almost 1800 (apart from the spruce fall) thus emerges with the same radiation. Such conditions are introduced in Blida lysror as a result of the rudder's longitudinal extension resp. Above by immediately adjoining the corpses to the slats.

Dessa nackdelar elimineras genom foreliggande uppfinning. Enligt uppfinningen Oro vinkelratt mot ljusrorets axel och nedanfor lysroret anordnade kilformiga kroppar med i tvarsektionen Vformade reflekterande kilytor, vilkas spetsar Oro vanda bort fran roret. These disadvantages are eliminated by the present invention. According to the invention, Oro is perpendicular to the axis of the fluorescent tube and wedge-shaped bodies arranged below the fluorescent tube with V-shaped reflecting wedge surfaces in the cross-section, the tips of which are arranged away from the tube.

De i och for sig kanda V-formade reflektorerna anordnades hittills endast parallellt med lysroret. Man hade den uppfattningen, att tvars mot lysroret anbragta reflektorer av denna typ skulle tacka en sa stor del av lampans yta, att en storre ljusmangd skulle ga forlorad On den som skulle kunna vinnas genom lutningen. Denna f orutf at--lade mening har overvunnits genom uppfinningen. Genom den V-formade utbildningen av tvarreflektorerna, vilket betyder en andring av intrades- och uttradesoppningen, andras aven forhallandet mellan oppningsvinklarna for det intradande och det uttradande stralknippet; vid Okning av uttradesoppningen minskas det uttradande stralknippets vinkel. Alla mellan reflektorerna intradande stralar kunna emellertid utnyttjas for belysning ay golvet. I jamforelse med anordningen med parallellt anordnade reflektorer kan vid anordningen enligt uppfinningen salunda ej endast ljustatheten okas utan Oven tvarreflektorernas lutning kan valj as pa sadant satt, att den onskade blandningsfria vinkeln kan uppratthallas. The per se known V-shaped reflectors were hitherto arranged only parallel to the fluorescent lamp. It was thought that reflectors of this type placed opposite the fluorescent lamp would thank such a large part of the surface of the lamp that a greater amount of light would be lost on that which could be gained through the inclination. This preconceived notion has been overcome by the invention. Through the V-shaped formation of the transverse reflectors, which means a change of the intrades and the outtrade aperture, the ratio between the opening angles of the introductory and the exiting beam is also different; when the exit opening increases, the angle of the exit beam is reduced. However, all rays entering between the reflectors can be used for lighting on the floor. In comparison with the device with reflectors arranged in parallel, in the device according to the invention not only the brightness can be increased but also the inclination of the transverse reflectors can be chosen in such a way that the desired mixture-free angle can be maintained.

De tvars fOrlopande reflektorernas lutning kan salunda valjas ph sa.dant satt, att den onskade vMkeln fbr blandningseliminering uppratthalles och att samtliga medelst dessa reflektorer reflekterade stralar kunna utnyttjas for nedatriktad belysning. The inclination of the transverse reflectors can thus be chosen in such a way that the desired distance for mixture elimination is maintained and that all rays reflected by these reflectors can be used for downward lighting.

Enligt ytterligrare en uppfinningside avstangas reflektorkropparna medelst var sitt lock, som Or belaget i omedelbar narhet av lysroret. Den ringa ljusforlusten yid de kilformiga kropparnas (tvarreflektorernas) lock sta. ej i nagon proportion till ovannamnda vinst och kan dessutom ytterligare minskas eller reduceras genom att locken krokas och forses med ett speglande skikt. Locket kan utat vara valvt i form av en bage eller det kan ha formen ay ett tak. According to a further inventive idea, the reflector bodies are suspended by means of their respective lids, which are coated in the immediate vicinity of the fluorescent lamp. The slight loss of light yid the lid of the wedge-shaped bodies (transverse reflectors) sta. not in any proportion to the above-mentioned gain and can also be further reduced or reduced by hooking the lids and providing them with a reflective layer. The lid may be arched in the form of a bag or it may have the shape of a roof.

Lampligen Oro overkanten pa de lysroret tangerande kropparna och underkanten pa de 2— — narbelagna kropparna belagna i narheten av ljusskugga-gransytor, vilka luta mot det horisontella planet i vinkel y, som svarar mot den onskade blandningsfriheten och • lampligen bilda reflektorytorna med det horisontella planet vink- lar, vilka aro = 900 2 bifogad ritning visas en ntforingsform av uppfinningsforemalet. Fig. 1 visar perspektiviskt en lysrorsarmatur med i rorets langd- och tvarrikt- fling anbragta reflektorer. Fig. 2 visar de tvarsforlopande reflektorerna i sektion. Fig. 3 tskdlig- goroch fig. 4 och 5 visa tvar- sektionsformer for reflektorerna. Lampligen Aro the upper edge of the fluorescent tangent bodies and the lower edge of the 2— - near-coated bodies coated in the vicinity of light shadow spruce surfaces, which slope towards the horizontal plane at angle y, corresponding to the desired freedom of mixing and • form the reflector surfaces with the horizontal plane angles, which are = 900 2 in the accompanying drawing, show an embodiment of the object of the invention. Fig. 1 shows in perspective a fluorescent luminaire with reflectors arranged in the longitudinal and transverse flaps of the rudder. Fig. 2 shows the transverse reflectors in section. Fig. 3 is a cross-sectional view of the reflectors.

Mellan roren 1 aro anordnade V-formiga reflektorer 2 och vinkelratt mot dessa och nedanfor roren 1 aro anbragta de avenledes V-formiga tvarreflektorerna 3. De det blandningsfria omradet avgransande ytorna 4 stracker sig i en vinkel y mot det horisontella planet 5 och tangera underkanten resp. overkanten pa narbelagna reflektorer. Dessa stracka sig till omedelbar narhet av lysroren 1 och deras ytor 6 luta mot det horison- tella planet med vinkeln 6 = 90°—f. (I utfo- 2 ringsexempel enligt fig. 2 upper vinkeln 7 till °, sã att ôblir 77° 30'). Arranged between the tubes 1 are V-shaped reflectors 2 and perpendicular thereto and below the tubes 1 are arranged the corresponding V-shaped transverse reflectors 3. The surfaces 4 delimiting the mixture-free area extend at an angle y to the horizontal plane 5 and tangent to the lower edge resp. . the upper edge of adjacent reflectors. These extend to the immediate vicinity of the fluorescent tubes 1 and their surfaces 6 slope towards the horizontal plane at an angle = = 90 ° —f. (In the exemplary embodiment according to Fig. 2, the upper angle is 7 to °, so that it is 77 ° 30 ').

Vardet 6 = 90° —11 utgor en gransvinkel, vid 2 vilken ej flagon blandverkan intrader och vid vilken stralarna fullstandigt utnyttjas i det onskade omradet som skull belysas. Om vinkeln 6 hr mindre an 90° —Z blir ljusintensiteten vis2 serligen storre men den belysta ytan blir mindre. The value 6 = 90 ° -11 constitutes a spruce angle, at which non-flake mixing action occurs and at which the rays are fully utilized in the desired area to be illuminated. If the angle is 6 hr smaller than 90 ° —Z, the light intensity vis2 will be significantly larger, but the illuminated surface will be smaller.

Av fig. 3 framgar, pa vilket satt vardet for vinkeln 6 erhalles. Den som gransstrale verkande och parallellt med roret 1 forlopande stralen 7 tangerar efter reflektion frail ytan 8 pa reflektorn 6a just underkanten ph reflektorn 6b Detta bander, om reflektorns 6a reflekterande yta 8 star vinkelratt pa den linje 10, som halverar den mellan linjerna 7 och 4 bildande vinkeln 7. Vinkeln mellan linjerna 7 och 8 Or betecknad med 8. Man erhaller da fOr 6 = 6' = 180° — och da = 90° + blir = 180° — (90° + = 22 = 90° 2 De tvarsforlopande reflektorerna arc forsedda med ett lock 9a—c, sorn är bagformigt krokt (fig. 2) eller plant resp. takformigt sasom visas i fig. 4 och 5. Locken, vilkas ytor arc forsedda med speglande skikt, aro avsedda som dammskydd och for utnyttjande av stralningen aven for belysning av taket. Fig. 3 shows on which set the value for the angle 6 is obtained. The beam 7 acting as a boundary beam and running parallel to the tube 1, after reflection, touches the surface 8 of the reflector 6a just below the edge ph of the reflector 6b. This band, if the reflecting surface 8 of the reflector 6a is perpendicular to the line 10, which halves it between lines 7 and 4 forming angle 7. The angle between lines 7 and 8 Or denoted by 8. One obtains da fOr 6 = 6 '= 180 ° - and da = 90 ° + becomes = 180 ° - (90 ° + = 22 = 90 ° 2 The transverse the reflectors arc provided with a lid 9a-c, which are bag-shaped hook (Fig. 2) or flat or roof-shaped as shown in Figs. 4 and 5. The covers, the surfaces of which are provided with reflective layers, are intended as dust protection and for use of the radiation aven for lighting the ceiling.

Fastsattningsorganen for reflektorerna Oro ej visade a ritningen. Reflektorernas vaggar kunna besta av ett material med fullstandig eller hoggradig spegeleffekt. The fastening means for the reflectors Oro are not shown in the drawing. The cradles of the reflectors can consist of a material with a complete or high-grade mirror effect.

Claims

Patent claim:

Fluorescent luminaire with preferably flat and on both sides of the fluorescent lamp arranged parallel to it reflector walls, characterized in that below the fluorescent lamp (1) and perpendicular to its axis Oro arranged wedge-shaped bodies (3) with V-shaped reflective wedge surfaces (8) , whose tips Oro wander away from the rudder.

Luminaire according to claim 1, characterized in that the reflector bodies (3) are suspended by means of a lid (9a, 9b, 9c), which is coated in the immediate vicinity of the fluorescent lamp (1).

Luminaire according to patent claim 2, characterized in that the surface of the lid (9a-9c) is provided with a reflective layer.

Luminaire according to patent claims 2 and 3, characterized in that the lid is hooked out in the form of a bag.

Luminaire according to patent claims 2 and 3, characterized in that the cover (9c) is roof-shaped.

Luminaire according to claims 1-5, characterized in that the upper edge of the bodies (3) adjoining the fluorescent tube (1) and the lower edge of the adjacent bodies touch light shadow spruce surfaces, which slope with an angle y corresponding to the desired freedom of mixing towards the horizontal plane and that the reflector surfaces (8) form with the said plane angles, which drew = 2 Request publications: U.S. Patent Nos. 2,434,049.