EP0389912A1 - Projector - Google Patents
Projector Download PDFInfo
- Publication number
- EP0389912A1 EP0389912A1 EP90105149A EP90105149A EP0389912A1 EP 0389912 A1 EP0389912 A1 EP 0389912A1 EP 90105149 A EP90105149 A EP 90105149A EP 90105149 A EP90105149 A EP 90105149A EP 0389912 A1 EP0389912 A1 EP 0389912A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- ring
- reflector housing
- guide
- lamp holder
- legs
- 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.)
- Granted
Links
- 230000005855 radiation Effects 0.000 abstract 2
- 238000001816 cooling Methods 0.000 description 1
- 239000006059 cover glass Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S8/00—Lighting devices intended for fixed installation
- F21S8/04—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V19/00—Fastening of light sources or lamp holders
- F21V19/02—Fastening of light sources or lamp holders with provision for adjustment, e.g. for focusing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
- F21V21/34—Supporting elements displaceable along a guiding element
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
- F21V21/34—Supporting elements displaceable along a guiding element
- F21V21/35—Supporting elements displaceable along a guiding element with direct electrical contact between the supporting element and electric conductors running along the guiding element
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
- F21V21/14—Adjustable mountings
- F21V21/30—Pivoted housings or frames
Definitions
- the innovation relates to a spotlight with a point light source, for example an HQI lamp, consisting of a reflector housing which accommodates the reflector, including the lamp holder with the lamp, in which the reflector housing at its rear end merges into a tubular extension with a fastening element and in which in the tubular extension of the reflector housing the adjustable in the tube axis bracket for the lamp holder is arranged.
- a point light source for example an HQI lamp
- parabolic reflectors are generally used, in the focal point of which the point light source is then arranged. If there is a desire in such a spotlight to change the light distribution curve in the direction of a more wide-beam characteristic, this can basically be brought about by moving the point light source in the main direction of the spotlight characteristic out of the focal point of the parabolic reflector.
- the innovation is based on the task of specifying a further solution for a spotlight with a lamp holder that is adjustable in its main axis, which is optimally integrated into the reflector housing with relatively small dimensions of the adjusting mechanism for the lamp holder.
- the radiator 1 shown in FIG. 1 has a reflector housing 2 which accommodates the reflector including the lamp holder 7.2 with the lamp and which is provided on its light exit opening side with a removable cover glass frame 2.1.
- the reflector housing 2 At its end opposite the light exit opening, the reflector housing 2 has a tubular extension 2.0 and is connected via this extension in a hinge 4 to the additional housing 3, which connects the further ones electrical components, in particular a ballast.
- the additional housing 3 is provided on its upper side with an adapter 5, with which it can be latched into a busbar 6 fastened, for example, to a ceiling.
- the reflector housing 2 of the radiator consists of two half-shells 2.1 which can be joined into one another with a cover and which are provided with flange attachments 2.11 on both sides.
- the assembled flange attachments 2.11 each form a cooling air duct 2.12 for better dissipation of the unavoidable heat losses generated by the point light source.
- each half-shell 2.1 in the area of its tubular attachment 2.0 between its flange attachments 2.11 has a wall opening 2.13 which is adapted to the dimensions of the adjusting ring 7.4 of the holder unit 7 according to FIG. 3. 1 inserted into the tubular extension 2.0 of the reflector housing 2, the mounting unit 7 engages it with its adjusting ring 7.4 through the wall openings 2.13 and is thus mounted in its simple manner via its adjusting ring in the tubular extension 2.0.
- the mounting unit 7 has a ring pot 7.1 which is adjustable in the axial direction in the adjusting ring 7.4, on the outside of which the lamp holder 7.2 which is adjustable in the main beam direction of the radiator 1 is fastened together with a U-plate 7.3.
- the legs of the U-plate 7.3 which represent guide legs 7.31, extend on both sides in the axial direction beyond the lamp holder 7.2 and, in the state inserted in the tubular extension 2.0, each engage in a guide groove 2.14 on the inside of the wall of a half-shell 2.1.
- Ring pot 7.1 provided at least approximately over its height obliquely arranged guide slots 7.12 through which a guide pin 7.41 anchored in the collar 7.4 is inserted.
- the leads 7.21 for the lamp holder 7.2 are led upwards from the lamp holder 7.2 through supply openings 7.13 in the base 7.15 of the ring pot 7.1.
- the lines 7.14 provided at the upper edge of the ring pot on opposite sides also serve to route the lines 7.21.
- the ring pot 7.1 can only perform a movement in the main beam direction of the emitter as desired due to its guidance in the guide grooves 2.14 with its guide legs 7.31 when the adjusting ring 7.4 is rotated.
- the flat angle of the guide slots 7.12 in the ring pot 7.1 and the mounting of the U-plate 7.3 in the guide groove 2.14 causes the mounting unit 7 to self-lock in the reflector housing 2, so that no special measure for locking the position setting of the lamp holder 7.2 once made is necessary.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Fastening Of Light Sources Or Lamp Holders (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
Abstract
Description
Die Neuerung bezieht sich auf einen Strahler mit einer Punktlichtquelle, beispielsweise einer HQI-Lampe, bestehend aus einem den Reflektor einschließlich der Lampenfassung mit der Lampe in sich aufnehmenden Reflektorgehäuse, bei dem das Reflektorgehäuse an seinem hinteren Ende in einen rohrförmigen Ansatz mit einem Befestigungselement übergeht und bei dem im rohrförmigen Ansatz des Reflektorgehäuses die in der Rohrachse verstellbare Halterung für die Lampenfassung angeordnet ist.The innovation relates to a spotlight with a point light source, for example an HQI lamp, consisting of a reflector housing which accommodates the reflector, including the lamp holder with the lamp, in which the reflector housing at its rear end merges into a tubular extension with a fastening element and in which in the tubular extension of the reflector housing the adjustable in the tube axis bracket for the lamp holder is arranged.
Bei Strahlern dieser Art, wie sie beispielsweise zur Ausleuchtung von Verkaufsräumen und Hotelfoyers zum Einsatz kommen, wird in der Regel von parabolischen Reflektoren Gebrauch gemacht, in deren Brennpunkt dann die Punktlichtquelle angeordnet ist. Besteht bei einem solcher Strahler der Wunsch, die Lichtverteilungskurve auch in Richtung einer mehr breitstrahlenden Charakteristik zu verändern, so kann dies grundsätzlich dadurch herbeigeführt werden, daß die Punktlichtquelle in Hauptrichtung der Strahlercharakteristik aus dem Brennpunkt des Parabolreflektors heraus verschoben wird.In the case of spotlights of this type, such as those used for illuminating sales rooms and hotel foyers, parabolic reflectors are generally used, in the focal point of which the point light source is then arranged. If there is a desire in such a spotlight to change the light distribution curve in the direction of a more wide-beam characteristic, this can basically be brought about by moving the point light source in the main direction of the spotlight characteristic out of the focal point of the parabolic reflector.
Von ein solcher Möglichkeit macht beispielsweise die in der Literaturstelle GM 88 00 280 bekannte elektrische Leuchte Gebrauch. Die im rohrartigen Ansatz des Reflektorgehäuses geführte und verschiebbare Halterung für die Lampenfassung ist relativ aufwendig und bedingt auch relativ große Abmessungen in Erstreckung der Achse des rohrförmigen Ansatzes.Such an option is used, for example, by the electric lamp known from the literature reference GM 88 00 280. The guided and displaceable holder for the lamp holder, which is guided and displaceable in the tubular extension of the reflector housing, is relatively complex and also requires relatively large dimensions in the extension of the axis of the tubular extension.
Der Neuerung liegt die Aufgabe zugrunde, für einen Strahler mit in seiner Hauptachse verstellbarer Lampenfassung eine weitere Lösung anzugeben, die bei relativ kleinen Abmessungen des Verstellmechanismus für die Lampenfassung optimal in das Reflektorgehäuse integriert ist.The innovation is based on the task of specifying a further solution for a spotlight with a lamp holder that is adjustable in its main axis, which is optimally integrated into the reflector housing with relatively small dimensions of the adjusting mechanism for the lamp holder.
Diese Aufgabe wird gemäß der Neuerung durch die im Schutzanspruch 1 angegebenen Merkmale gelöst.This object is achieved according to the innovation by the features specified in
Zweckmäßige Ausgestaltungen des Gegenstandes nach dem Schutzanspruch 1 sind in den weiteren Schutzansprüchen 2 bis 5 angegeben.Expedient refinements of the subject matter according to
In der Zeichnung bedeuten
- Fig. 1 ein aus einem Reflektorgehäuse und einem Zusatzgehäuse bestehender Strahler in perspektivischer Darstellung,
- Fig. 2 eine Halbschale des Reflektorgehäuses in perspektivischer Darstellung,
- Fig. 3 die im rohrförmigen Ansatz des Reflektorgehäuses untergebrachte Halterungseinheit für die Lampenfassung in perspektivischer Darstellung.
- 1 is a perspective view of a radiator consisting of a reflector housing and an additional housing,
- 2 is a half-shell of the reflector housing in a perspective view,
- Fig. 3 shows the holder unit for the lamp holder accommodated in the tubular extension of the reflector housing in a perspective view.
Der in Fig. 1 dargestellte Strahler 1 weist ein den Reflektor einschließlich der Lampenfassung 7.2 mit der Lampe in sich aufnehmenden Reflektorgehäuse 2 auf, das auf seiner Lichtaustrittsöffnungsseite mit einem abnehmbaren Abdeckglasrahmen 2.1 versehen ist. Das Reflektorgehäuse 2 weist an seinem der Lichtaustrittsöffnung gegenüberliegenden Ende einen rohrförmigen Ansatz 2.0 auf und ist über diesen Ansatz hinweg in einem Scharnier 4 mit dem Zusatzgehäuse 3 verbunden, das die weiteren elektrischen Bauteile, insbesondere ein Vorschaltgerät, aufweist. Für die Befestigung und den elektrischen Anschluß des Strahlers 1 ist das Zusatzgehäuse 3 an seiner Oberseite mit einem Adapter 5 versehen, mit dem es in eine beispielsweise an einer Decke befestigte Stromschiene 6 eingeklinkt werden kann.The
Das Reflektorgehäuse 2 des Strahlers 1 besteht, wie insbeondere Fig. 2 verdeutlicht, aus zwei auf Umschlag ineinander fügbaren Halbschalen 2.1, die auf beiden Seiten mit Flanschansätzen 2.11 versehen sind. Im zusammengefügten Zustand der beiden Halbschalen 2.1, bilden die zusammengefügten Flanschansätze 2.11 jeweils einen Kühlluftkanal 2.12 für die bessere Ableitung der von der Punktlichtquelle erzeugten unvermeidbaren Wärmeverluste. Zur Aufnahme der Halterungseinheit 7 für die Lampenfassung 7.2 entsprechend Fig. 3 weist jede Halbschale 2.1 im Bereich ihres rohrförmigen Ansatzes 2.0 zwischen ihren Flanschansätzen 2.11 einen Wanddurchbruch 2.13 auf, der den Abmessungen des Stellrings 7.4 der Halterungseinheit 7 nach Fig. 3 angepaßt ist. 1 in den rohrförmigen Ansatz 2.0 des Reflektorgehäuses 2 eingesestzten Zustand der Halterungseinheit 7 greift diese mit ihrem Stellring 7.4 durch die Wanddurchbrüche 2.13 hindurch und ist auf diese einfache Weise über ihren Stellring im rohrförmigen Ansatz 2.0 gelagert.The reflector housing 2 of the
Die Halterungseinheit 7 weist einen im Stellring 7.4 in Achsrichtung verstellbaren Ringtopf 7.1 auf, an dessen Bodenaußenseite die in der Hauptstrahlrichtung des Strahlers 1 verstellbare Lampenfassung 7.2 zusammen mit einem U-Blech 7.3 befestigt ist. Die Führungsschenkel 7.31 darstellenden Schenkel des U-Blechs 7.3 erstrecken sich zu beiden Seiten in Axialrichtung über die Lampenfassung 7.2 hinaus und greifen im in den rohrförmigen Ansatz 2.0 eingesetzten Zustand jeweils in eine Führungsnut 2.14 auf der Innenseite der Wandung einer Halbschale 2.1 ein.The mounting unit 7 has a ring pot 7.1 which is adjustable in the axial direction in the adjusting ring 7.4, on the outside of which the lamp holder 7.2 which is adjustable in the main beam direction of the
Für die axiale Verschiebung des Ringtopfs 7.1 in Abhängigkeit einer Drehung des Steilrings 7 sind in der Wandung 7.11 des Ringtopfes 7.1 sich wenigstens annähernd über seine Höhe erstreckende schräg angeordnete Führungsschlitze 7.12 vorgesehen, durch die hindurch ein im Stellring 7.4 verankerter Führungsstift 7.41 gesteckt ist. Die Zuleitungen 7.21 für die Lampenfassung 7.2 sind von der Lampenfassung 7.2 nach oben durch Zuleitungsöffnungen 7.13 im Boden 7.15 des Ringtopfes 7.1 herausgeführt. Der Leitungsführung der Zuleitung 7.21 dienen auch die am oberen Rand des Ringtopfes auf gegenüberliegenden Seiten vorgesehenen Aussparungen 7.14.For the axial displacement of the ring pot 7.1 depending on a rotation of the steep ring 7 are in the wall 7.11 Ring pot 7.1 provided at least approximately over its height obliquely arranged guide slots 7.12 through which a guide pin 7.41 anchored in the collar 7.4 is inserted. The leads 7.21 for the lamp holder 7.2 are led upwards from the lamp holder 7.2 through supply openings 7.13 in the base 7.15 of the ring pot 7.1. The lines 7.14 provided at the upper edge of the ring pot on opposite sides also serve to route the lines 7.21.
Im in den rohrförmigen Ansatz 2.0 des Reflektorgehäuses 2 eingesetzten Zustand der Halterungseinheit 7 kann der Ringtopf 7.1 bei Drehen des Stellrings 7.4 aufgrund seiner Führung in den Führungsnuten 2.14 mit seinen Führungsschenkeln 7.31 wie gewünscht ausschließlich eine Bewegung in der Hauptstrahlrichtung des Strahlers ausführen.In the state of the mounting unit 7 inserted into the tubular extension 2.0 of the
Der flache Winkel der Führungsschlitze 7.12 im Ringtopf 7.1 und die Lagerung des U-Bleches 7.3 in der Führungsnut 2.14, bewirkt eine Selbsthemmung der Halterungseinheit 7 im Reflektorgehäuse 2, somit ist keine besondere Maßnahme zur Arretierung der einmal getroffenen Lageeinstellung der Lampenfassung 7.2 erforderlich.The flat angle of the guide slots 7.12 in the ring pot 7.1 and the mounting of the U-plate 7.3 in the guide groove 2.14 causes the mounting unit 7 to self-lock in the
Claims (5)
dadurch gekennzeichnet
, - daß die Halterung für die Lampenfass(7.2) ein Ringtopf (7.1) mit bodenseitigen Zuleitungsöffnungen (7.13) ist, an dessen Bodenaußenseite die Lampenfassung (7.2) und wenigstens zwei sich in der Achse des Ringtopfes (7.1) zu beiden Seiten der Lampenfassung (7.2) über diese hinaus erstreckenden Führungsschenkel (7.31) befestigt sind,
- daß die Wandung (7.11) des Ringtopfes (7.1) auf einander gegenüberliegenden Seiten zwei gleiche sich wenigstens annähernd über die Höhe des Ringtopfes (7.1) erstreckende schräg angeordnete Führungsschlitze (7.12) für den Eingriff von in einem Stellring (7.4) verankerten FührungselementeN aufweist, in dem der Ringtopf (7.1) axial verstellbar geführt ist und
- daß die so gestaltete Halterungseinheit (7) für die Lampenfassung (7.2) im rohrförmigen Ansatz (2.0) des Reflektorgehäuses (2) auf einander gegenüberliegenden Seiten einerseits mit ihrem Stellring (7.4) in dessen Abmessungen angepaßten Wanddurchbrüchen (2.13) gelagert ist und andererseits mit ihren ringtopfseitigen Führungsschenkeln (7.31) in diesen angepaßten parallel zu den Führungsschenkeln ausgerichteten innenwandseitigen Führungsnuten (2.14) eingreifen.1. Spotlight with a point light source, for example an HQI lamp, consisting of a reflector housing including the reflector including the lamp holder with the lamp, in which the reflector housing at its rear end merges into a tubular extension with a fastening element and in the tubular extension the reflector housing, the holder for the lamp holder, which is adjustable in the tube axis, is arranged,
characterized
, - That the holder for the lamp holder (7.2) is a ring pot (7.1) with bottom-side supply openings (7.13), on the outside of the bottom of the lamp holder (7.2) and at least two in the axis of the ring pot (7.1) on both sides of the lamp holder ( 7.2) are fastened beyond these guide legs (7.31),
- that the wall (7.11) of the ring pot (7.1) on opposite sides has two identical obliquely arranged guide slots (7.12) which extend at least approximately over the height of the ring pot (7.1) for the engagement of guide elements N anchored in an adjusting ring (7.4), in which the ring pot (7.1) is axially adjustable and
- That the bracket unit (7) thus designed for the lamp holder (7.2) in the tubular extension (2.0) of the reflector housing (2) is mounted on opposite sides on the one hand with its adjusting ring (7.4) in its dimensions adapted wall openings (2.13) and on the other hand with engage their ring legs on the ring pot side (7.31) in these adapted inner wall-side guide grooves (2.14) aligned parallel to the guide legs.
dadurch gekennzeichnet,
daß die Führungsschenkel (7.31) aus den beiden Schenkeln eines U-Blechs (7.3) bestehen, das über sein die beiden Schenkel miteinander verbindendes Mittelteil am Boden (7.15) des Ringtopfes (7.1) befestigt ist.2. radiator according to claim 1,
characterized by
that the guide legs (7.31) consist of the two legs of a U-plate (7.3) over which the two legs interconnecting middle part is attached to the bottom (7.15) of the ring pot (7.1).
dadurch gekennzeichnet,
daß die im Stellring (7.4) verankerten Führungselemente ein durch beide Führungsschlitze (7.12) des Ringtopfes (7.1) hindurchgesteckter Führungsstift (7.41) ist.3. radiator according to claim 1 or 2,
characterized by
that the guide elements anchored in the adjusting ring (7.4) is a guide pin (7.41) inserted through both guide slots (7.12) of the ring pot (7.1).
dadurch gekennzeichnet,
daß sich das Reflektorgehäuse (2) aus zwei randseitig mit Flanschansätzen (2.11) versehenen auf Umschlag ineinander fügbaren Halbschalen (2.1) besteht und daß die Wanddurchbrüche (2.13) für den Stellring (7.4) der Halterungseinheit (7) im Bereich des rohrförmigen Ansatzes (2.0) des Reflektorgehäuses (2) jeweils zwischen den randseitigen Flanschansätzen (2.11) einer Halbschale (2.1) vorgesehen sind.4. Radiator according to one of the preceding claims,
characterized by
that the reflector housing (2) consists of two half-shells (2.1) which are provided with flanges (2.11) on the edge and can be joined into each other and that the wall openings (2.13) for the adjusting ring (7.4) of the mounting unit (7) in the area of the tubular extension (2.0 ) of the reflector housing (2) are provided in each case between the flange-side flanges (2.11) of a half-shell (2.1).
dadurch gekennzeichnet,
daß das Befestigungselement am rohrförmigen Ansatz (2.0) des Reflektorgehäuses (2) ein feststellbares Scharnier (4) ist, in dem das Reflektorgehäuse schwenkbar an einem weitere elektrische Bauteile, insbesondere ein Vorschaltgerät in sich aufnehmenden Zusatzgehäuses (3) gehaltert ist.5. Radiator according to one of the preceding claims,
characterized by
that the fastening element on the tubular extension (2.0) of the reflector housing (2) is a lockable hinge (4) in which the reflector housing is pivotally mounted on another electrical component, in particular a ballast in an additional housing (3).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT90105149T ATE99399T1 (en) | 1989-03-23 | 1990-03-19 | RADIANT. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE8903699U | 1989-03-23 | ||
DE8903699U DE8903699U1 (en) | 1989-03-23 | 1989-03-23 | Spotlights |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0389912A1 true EP0389912A1 (en) | 1990-10-03 |
EP0389912B1 EP0389912B1 (en) | 1993-12-29 |
Family
ID=6837509
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP90105149A Expired - Lifetime EP0389912B1 (en) | 1989-03-23 | 1990-03-19 | Projector |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0389912B1 (en) |
AT (1) | ATE99399T1 (en) |
DE (2) | DE8903699U1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0563889A2 (en) * | 1992-03-30 | 1993-10-06 | Hartmut S. Engel | Projector with focussing device |
NL9301649A (en) * | 1993-09-24 | 1995-04-18 | Massive Productie Nederland B | Lamp |
US6045236A (en) * | 1996-08-09 | 2000-04-04 | Black & Decker Inc. | Twist on/off and adjustable focus flashlight |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10241182A1 (en) * | 2002-09-05 | 2004-03-18 | Licht + Design Gmbh | Ceiling or wall spot lights mounted on rail type busbars or similar means has pivoting housing for control equipment and pivoting lamp fitting |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2723145A1 (en) * | 1977-05-23 | 1978-11-30 | Hoffmeister Leuchten Kg | Reflector assembly for narrow beam lamp - uses parabolic main reflector and has axially adjustable auxiliary reflector positioned in front of bulb |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE322850C (en) * | 1919-02-06 | 1920-07-10 | Schneider & Co Dr Ing | Incandescent lamp fitting |
FR652247A (en) * | 1928-04-05 | 1929-03-06 | Device for adjusting the position of the light source in electric or other lighting fittings | |
DE1600375U (en) * | 1949-01-24 | 1950-02-02 | Florenz Voegeding Metallwarenf | DEVICE FOR FOCUSING THE LIGHT SOURCE ON HEADLIGHTS FOR ELECTRICALLY OPERATED RAIL VEHICLES AND THE LIKE. |
US3020390A (en) * | 1958-06-17 | 1962-02-06 | Carroll B Lusk | Light projector |
DE1976688U (en) * | 1967-10-27 | 1968-01-11 | Reininghaus & Co | SPOTLIGHT. |
GB1424360A (en) * | 1972-05-22 | 1976-02-11 | Rotaflex Ltd | Spotlieghts |
NL7216165A (en) * | 1972-11-29 | 1974-05-31 | ||
US4061912A (en) * | 1976-10-26 | 1977-12-06 | Berkey-Colortran, Inc. | Filament alignment mechanism for follow spot or the like |
GB1588657A (en) * | 1978-04-28 | 1981-04-29 | Rotaflex Ltd | Lamp holder |
DE3710147A1 (en) * | 1987-03-27 | 1988-10-13 | Hartmut S Engel | Radiator (light source) |
DE8800280U1 (en) * | 1988-01-13 | 1988-04-21 | Designer Societät Stuttgart, 7000 Stuttgart | Electric lamp |
DE3800695A1 (en) * | 1988-01-13 | 1989-07-27 | Designer Societaet Stuttgart | Electric luminaire |
-
1989
- 1989-03-23 DE DE8903699U patent/DE8903699U1/en not_active Expired
-
1990
- 1990-03-19 DE DE90105149T patent/DE59003993D1/en not_active Expired - Fee Related
- 1990-03-19 EP EP90105149A patent/EP0389912B1/en not_active Expired - Lifetime
- 1990-03-19 AT AT90105149T patent/ATE99399T1/en not_active IP Right Cessation
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2723145A1 (en) * | 1977-05-23 | 1978-11-30 | Hoffmeister Leuchten Kg | Reflector assembly for narrow beam lamp - uses parabolic main reflector and has axially adjustable auxiliary reflector positioned in front of bulb |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0563889A2 (en) * | 1992-03-30 | 1993-10-06 | Hartmut S. Engel | Projector with focussing device |
EP0563889A3 (en) * | 1992-03-30 | 1994-04-06 | Engel Hartmut S | |
NL9301649A (en) * | 1993-09-24 | 1995-04-18 | Massive Productie Nederland B | Lamp |
US6045236A (en) * | 1996-08-09 | 2000-04-04 | Black & Decker Inc. | Twist on/off and adjustable focus flashlight |
Also Published As
Publication number | Publication date |
---|---|
DE8903699U1 (en) | 1989-05-18 |
DE59003993D1 (en) | 1994-02-10 |
ATE99399T1 (en) | 1994-01-15 |
EP0389912B1 (en) | 1993-12-29 |
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