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WO1999001695B1 - Optical attachment for a light-emitting diode and brake light for a motor vehicle - Google Patents

Optical attachment for a light-emitting diode and brake light for a motor vehicle

Info

Publication number
WO1999001695B1
WO1999001695B1 PCT/DE1998/001802 DE9801802W WO9901695B1 WO 1999001695 B1 WO1999001695 B1 WO 1999001695B1 DE 9801802 W DE9801802 W DE 9801802W WO 9901695 B1 WO9901695 B1 WO 9901695B1
Authority
WO
WIPO (PCT)
Prior art keywords
attachment
light
inner lens
region
light source
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.)
Ceased
Application number
PCT/DE1998/001802
Other languages
German (de)
French (fr)
Other versions
WO1999001695A1 (en
Filing date
Publication date
Priority claimed from DE19728354A external-priority patent/DE19728354C2/en
Application filed filed Critical
Priority to US09/446,179 priority Critical patent/US6536923B1/en
Priority to BR9810536-1A priority patent/BR9810536A/en
Publication of WO1999001695A1 publication Critical patent/WO1999001695A1/en
Publication of WO1999001695B1 publication Critical patent/WO1999001695B1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Abstract

L'invention concerne une optique (10) destinée à une source de lumière, notamment à une diode électroluminescente (12), qui comprend une zone lentille interne (14) entourant l'axe optique (13) de ladite optique (10), destinée aux faisceaux lumineux internes (15) émis par la source de lumière, et une zone réflecteur externe (16) annulaire entourant la zone lentille interne (14), destinée aux faisceaux lumineux externes (17) émis par ladite source. Cette combinaison de réfraction dans la zone lentille interne et de réflexion dans la zone réflecteur externe permet de fabriquer une optique relativement petite qui peut intercepter davantage de lumière qu'une lentille ou un réflecteur seul et dont les photodiodes punctiformes donnent, côté sortie, de grandes surfaces lumineuses.An optics (10) for a light source, particularly a light-emitting diode (12), comprising an inner lens region (14) surrounding the optical axis (13) of said optics (10), the internal light beams (15) emitted by the light source, and an annular outer reflective zone (16) surrounding the inner lens area (14) for the external light beams (17) emitted by said source. This combination of refraction in the inner lens zone and reflection in the outer reflector zone makes it possible to produce a relatively small optic which can intercept more light than a lens or a reflector alone and whose punctate photodiodes give, on the output side, large luminous surfaces.

Claims

1 7GEÄNDERTE ANSPRÜCHE[beim Internationalen Büro am 24.Dezember 1998 (24.12.98) eingegangen; ursprüngliche Ansprüche 1-13 durch geänderte Ansprüche 1-10 ersetzt (3 Seiten)] 1 CHANGED CLAIMS [received at the International Bureau on 24 December 1998 (24.12.98); original claims 1-13 replaced by amended claims 1-10 (3 pages)] 1. Vorsatz (10; 10') für eine Lichtquelle, insbesondere für eine Leuchtdicάe (12) , mit einem die optische Achs; (13; 13') des Vorsatzes (10; 10') umgebenden inneren Linsenbereich (14; 14') für von der Lichtquelle abgestrahlte innere Lichtstrahlen (15; 15') und mit einem den inneren Linsenbereich (14; 14') ringförmig umgebenden äußeren Reflektorbereich (16; 16') für äußere Lichtstrahlen (17; 17') der Lichtquelle, dadurch gekennzeichnet, daß der Vorsatz (IC; 10') lichtaustrittsseitig einen nichtrota ionssymmetrischen, vorzugsweise einen rechteckigen oder quadratischen, wirksamen Querschnitt aufweist und in einzelne WinkelSektoren (25, 25a, 25b; 25', 25a', 25b') bezüglich der optischen Achse (13; 13') unterteilt ist, wobei alle Axialquerschnitte inn- nerhalb eines Winkelsektors (25, 25a, 25b; 25', 25a', 25b') im wesentlichen gleich sind, und daß sich die Axialquerschnitte zweier Winkelsektoren (25, 25a, 25b; 25', 25a', 25b') in einer Skalierung bezüglich einem vorderen Brennpunkt (11; 11') des Vorsatzes (10; 10') unterscheiden, wobei die Skalierung entsprechend dem Verhältnis der jeweils größten radialen Erstreckung des Vorsatzes (10; 10') in den zwei Winkelsektoren (25, 25a, 25b; 25', 25a', 25b') gewählt ist.An attachment (10; 10 ') for a light source, in particular for a light-emitting diode (12), with an optical axis; (13; 13 ') of the attachment (10; 10') surrounding the inner lens region (14; 14 ') for inner light rays (15; 15') emitted by the light source and with an annular surrounding the inner lens region (14; 14 ') outer reflector region (16, 16 ') for external light beams (17; 17') of the light source, characterized in that the front attachment (IC; 10 ') has a non-rotational ion-symmetrical, preferably rectangular or square, effective cross-section on the light exit side and into individual angle sectors (25, 25a, 25b, 25 ', 25a', 25b ') is subdivided with respect to the optical axis (13, 13'), all axial cross sections being within an angular sector (25, 25a, 25b; 25 ', 25a', 25b ') are substantially the same, and that the axial cross sections of two angular sectors (25, 25a, 25b; 25', 25a ', 25b') are scaled with respect to a front focal point (11; 11 ') of the attachment (10; '), wherein the scaling according to the ratio of the respective s largest radial extent of the attachment (10; 10 ') in the two angular sectors (25, 25a, 25b ; 25', 25a ', 25b'). 2. Vorsatz nach Anspruch 1, dadurch gekennzeichnet, daß sich der äußere Reflektorbereich (16; 16') unmittelbar an den inneren Linsenbereich (14; 14') anschließt.2. An attachment according to claim 1, characterized in that the outer reflector region (16; 16 ') directly adjoins the inner lens region (14; 14'). GEÄNDERTES BLÄH (ARTIKEL19) MODIFIED BLUE (ARTICLE 19) 3. Vorsatz nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der innere Linsenbereich (14; 14') als Sammellinse ausgebildet ist.3. An attachment according to claim 1 or 2, characterized in that the inner lens portion (14, 14 ') is designed as a converging lens. 4. Vorsatz nach Anspruch 3, dadurch gekennzeichnet, daß der innere Linsenbereich (14') als Fres-ielsche Stufen- linse ausgebildet ist.4. An attachment according to claim 3, characterized in that the inner lens portion (14 ') is designed as Fres-ielsche step lens. 5. Vorsatz nach einem der vorhergehenden Ansprüche, gekennzeichnet durch eine zur Lichtquelle hin offene Ein- speisungsöffnung (18; 18') vor dem inneren Linsenbereich (14; 14'), über deren Innenumfangswandung (20; 20') die äußeren Strahlen (17; 17') der Lichtquelle in den äußeren Reflektorbereich (16; 16') eingespeist werden.5. An attachment according to one of the preceding claims, characterized by an open towards the light source feed opening (18; 18 ') in front of the inner lens region (14; 14'), on whose inner peripheral wall (20; 20 ') the outer rays (17 17 ') of the light source are fed to the outer reflector region (16, 16'). 6. Vorsatz nach einem der vorhergehenden Ansprüche, gekennzeichnet durch eine die in den äußeren Reflektorbereich (16; 16') eingespeisten äußeren Lichtstrahlen (17; 17') nach vorne reflektierende Außenumfangsflache (21; 21') des Vorsatzes (10; 10').6. An attachment according to one of the preceding claims, characterized by the outer light beams (17, 17 ') which are fed into the outer reflector region (16, 16') and project towards the outer peripheral surface (21, 21 ') of the attachment (10, 10'). , 7. Vorsatz nach Anspruch 6, dadurch gekennzeichnet, daß die Außenumfangsflache (21; 21') des äußeren Reflektor- bereichs (16; 16') bezüglich der optischen Achse (13; 13') des Vorsatzes (10,- 10') zumindest abschnittsweise parabelförmig oder aus Geradensegmenten bestehend ausgebildet ist.7. An attachment according to claim 6, characterized in that the outer peripheral surface (21, 21 ') of the outer reflector region (16; 16') with respect to the optical axis (13; 13 ') of the attachment (10, - 10') at least partially formed parabolic or consisting of straight segments. 8. Vorsatz nach einem der vorhergehenden Ansprüche, gekennzeichnet durch eine auf der Lichtaustrittsseite befindliche zentrale Öffnung (22; 22') in dem Vorsatz (10;8. An attachment according to one of the preceding claims, characterized by a located on the light exit side central opening (22; 22 ') in the attachment (10; 10' ) . 1 910 '). 1 9 9. Vorsatz nach einem der vorhergehenden Ansprüche, gεr- kennzeichnet durch einen im inneren Linsenbereich (14; 14') befindlichen, koaxial zur optischen Achse (13; 13') verlaufenden Mittelzylinder (23; 23').9. An attachment according to one of the preceding claims, characterized by a in the inner lens region (14, 14 ') located, coaxial with the optical axis (13, 13') extending central cylinder (23, 23 '). 10. Bremsleuchte, insbesondere Bremsmittel_euchte, für ein Fahrzeug mit mehreren, vorzugsweise in einer Reihe, nebeneinander angeordneten Lichtquellen, vorzugsweise Leuchdioden (12), mit ihnen jeweils vorangestellten Vorsätzen (10; 10') nach einem der vorhergehenden Ansprüche . 10. brake light, in particular Bremsmittel_euchte, for a vehicle having a plurality, preferably in a row, juxtaposed light sources, preferably light-emitting diodes (12), with them each prefixed intent (10; 10 ') according to one of the preceding claims.
PCT/DE1998/001802 1997-07-03 1998-07-01 Optical attachment for a light-emitting diode and brake light for a motor vehicle Ceased WO1999001695A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US09/446,179 US6536923B1 (en) 1998-07-01 1998-07-01 Optical attachment for a light-emitting diode and brake light for a motor vehicle
BR9810536-1A BR9810536A (en) 1997-07-03 1998-07-01 Optical accessory for a LED and brake light for a motor vehicle.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19728354.3 1997-07-03
DE19728354A DE19728354C2 (en) 1997-07-03 1997-07-03 Refractor element as an attachment for a light source and use of such a refractor element as an attachment for a brake light of a vehicle

Publications (2)

Publication Number Publication Date
WO1999001695A1 WO1999001695A1 (en) 1999-01-14
WO1999001695B1 true WO1999001695B1 (en) 1999-02-25

Family

ID=7834478

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1998/001802 Ceased WO1999001695A1 (en) 1997-07-03 1998-07-01 Optical attachment for a light-emitting diode and brake light for a motor vehicle

Country Status (3)

Country Link
BR (1) BR9810536A (en)
DE (1) DE19728354C2 (en)
WO (1) WO1999001695A1 (en)

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