Illuminating arrangement with flash lamps for use with photographic apparatus专利检索-压电变压器变压器和转换设备专利检索查询-专利查询网

Illuminating arrangement with flash lamps for use with photographic apparatus

阅读：6发布：2022-06-29

专利汇可以提供Illuminating arrangement with flash lamps for use with photographic apparatus专利检索，专利查询，专利分析的服务。并且An illuminating arrangement having a flash circuit which is built into the body of a camera and utilizing flashcubes whose bases can be inserted into a socket of the camera body. The flash circuit has two contacts which are engaged by the electrodes of a selected flash lamp of that flashcube which is connected with the camera body. An arcuate elastic metallic element short-circuits the electrodes of all such flash lamps which are not in proper position for illumination of a subject or scene. The flash circuit has a normally open synchronizing switch in series with the two contacts and with a source of high voltage, such as a battery and a capacitor connected with a transformer or a piezoelectric crystal which can be struck by an impeller on closing of the switch to induce a voltage which is high enough to fire that flash lamp whose electrodes are connected with the contacts of the flash circuit.，下面是Illuminating arrangement with flash lamps for use with photographic apparatus专利的具体信息内容。

权利要求

1. An illuminating arrangement, particularly for use with photographic apparatus, comprising a flash circuit having a pair of contacts; a holder including at least two flash lamps each having a high internal resistance and two electrodes, said holder being movable with reference to said flash circuit between a plurality of positions in each of which said contacts are engaged by the electrodes of a different flash lamp so that a selected lamp whose electrodes engage said contacts can be fired in response to completion of said circuit, one electrode of each of said lamps being connected to one of said contacts in each position of said holder; and short-circuiting means for the electrodes of each flash lamp other than said selected lamp, said short-circuiting means comprising an arcuate metallic element connecting said one contact with the other electrode of each flash lamp other tHan said selected flash lamp.

2. An arrangement as defined in claim 1, wherein said holder is rotatable between said plurality of positions.

3. An arrangement as defined in claim 1, further comprising a socket for said holder, said short-circuiting means being installed in said socket.

4. An arrangement as defined in claim 3, wherein said socket is provided in the body of a camera.

5. An arrangement as defined in claim 1, wherein said flash circuit includes a source of high potential which is in series with the electrodes of said selected lamp.

6. An illuminating arrangement, particularly for use with photographic apparatus, comprising a flash circuit having a pair of contacts; a holder including at least two flash lamps each having two electrodes, said holder being rotable with reference to said flash circuit between a plurality of positions in each of which said contacts are engaged by the electrodes of a different flash lamp so that a selected flash lamp whose electrodes engage said contacts can be fired in response to completion of said circuit, one electrode of each of said lamps being connected to one of said contacts in each position of said holder and said holder further comprising an axially extending first coupling portion consisting at least in part of current-conducting material and electrically connected with said one electrode of each of said flash lamps, said circuit including a complementary second coupling portion consisting at least in part of current-conducting material and electrically connected with said one contact, said coupling portions being in current-conducting engagement with each other but being separable to permit disconnection of said holder from said circuit; and short-circuiting means for the electrodes of each flash lamp other than said selected lamp, said short-circuiting means comprising an arcuate metallic element connecting said one contact with the other electrode of each flash lamp other than said selected flash lamp.

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Illuminating arrangement with flash lamps for use with photographic apparatus

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