DE211324C - - Google Patents
Info
- Publication number
- DE211324C DE211324C DE1908211324D DE211324DA DE211324C DE 211324 C DE211324 C DE 211324C DE 1908211324 D DE1908211324 D DE 1908211324D DE 211324D A DE211324D A DE 211324DA DE 211324 C DE211324 C DE 211324C
- Authority
- DE
- Germany
- Prior art keywords
- mirror
- condenser system
- smaller
- light
- concave mirror
- 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.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B31/00—Electric arc lamps
- H05B31/003—Electric arc lamps of a special type
- H05B31/0036—Electric arc lamps of a special type for projection, copying or stage lighting
Landscapes
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
In der Patentschrift 187850 ist ein Bogenlicht-Scheinwerfer beschrieben, der durch Entfernen des Spiegels aus dem Bereiche der Lichtstrahlung in einen nach entgegengesetzter Richtung wirkenden Projektionsapparat verwandelt werden kann. Das Entfernen des Spiegels geschieht dabei durch Umklappen um eine Achse, was einen erheblichen Raumaufwand für das Gehäuse des Apparates zur Folge hat. Diesen Ubelstand zu vermeiden, ist »der Zweck der nachfolgend beschriebenen neuen Anordnung, die sich von der ursprünglichen wesentlich dadurch unterscheidet, daß nicht der Spiegel im ganzen verstellbar eingerichtet ist, sondem daß ein kleinerer Spiegel angeordnet ist, der einen mittleren Ausschnitt des großen Spiegels ausfüllt, wenn der Apparat für Scheinwerferbetrieb dient.In the patent 187850 is an arc light headlight described by removing the mirror from the area of light radiation transformed into a projection apparatus that works in the opposite direction can be. The mirror is removed by folding it around an axis, which results in a considerable amount of space required for the housing of the apparatus. This one Avoiding bad situation is »the purpose of the new arrangement described below, which differs from the original in that it is not the mirror generally adjustable, special that a smaller mirror is arranged, which fills a central section of the large mirror, if the apparatus for headlamp operation serves.
Fig. ι zeigt einen Längsschnitt durch den Apparat, Fig. 2 eine Ansicht des Hohlspiegels von der Rückseite. Die Bezugbuchstaben sind entsprechend denen der Patentschrift 187850 gewählt; es bedeutet also g das Gehäuse des Apparates, I das Kondensersystem, s den Spiegel, A1 und k2 die Lampenkohlen.Fig. 1 shows a longitudinal section through the apparatus, Fig. 2 shows a view of the concave mirror from the rear. The reference letters are chosen according to those of the patent 187850; it means g the housing of the apparatus, I the condenser system, s the mirror, A 1 and k 2 the lamp carbon.
Der Spiegel s hat nun, wie schon erwähnt, in seiner Mitte einen größeren kreisrunden Ausschnitt, der beim Scheinwerferbetriebe durch den kleineren Spiegel S1 unter Wahrung der optischen Eigenschaften des Gesamtspiegels ausgefüllt wird. Da das Kondensersystem nur einen verhältnismäßig spitzen Lichtkegel aufnehmen kann, so genügt schon eine nicht zu große mittlere Öffnung des Spiegels s, um den beabsichtigten Wechsel in der Tätigkeit des Apparates zu ermöglichen.As already mentioned, the mirror s now has a larger circular cutout in its center which, when the headlight is operated, is filled by the smaller mirror S 1 while maintaining the optical properties of the overall mirror. Since the condenser system can only receive a relatively sharp cone of light, a central opening of the mirror which is not too large is sufficient to enable the intended change in the operation of the apparatus.
Der Platzwechsel des kleinen Spiegels S1 kann in sehr verschiedener Weise ausgeführt werden, beispielsweise mit Hilfe einer Führung, in der sich der Spiegel S1 auf und ab bewegt, wie in den Fig. 1 und 2 angedeutet ist.The change in place of the small mirror S 1 can be carried out in very different ways, for example with the aid of a guide in which the mirror S 1 moves up and down, as indicated in FIGS.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE211324T | 1908-09-06 | ||
DE287850T | 1913-10-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE211324C true DE211324C (en) | 1909-06-26 |
Family
ID=473146
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1908211324D Expired DE211324C (en) | 1908-09-06 | 1908-09-06 |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE211324C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2725087A1 (en) * | 1977-06-03 | 1978-12-21 | Reiche & Vogel Leichtkunst Zwe | High intensity gas discharge lamp light fitting - has lamp angular electrode with one arm positioned along axis of optical system |
-
1908
- 1908-09-06 DE DE1908211324D patent/DE211324C/de not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2725087A1 (en) * | 1977-06-03 | 1978-12-21 | Reiche & Vogel Leichtkunst Zwe | High intensity gas discharge lamp light fitting - has lamp angular electrode with one arm positioned along axis of optical system |
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