DE8119505U1 - STAND DEVICE FOR ELECTRONIC FLASH DEVICES - Google Patents

Description

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AG FA-G EVAERT AG

LEVERKUSEN

CAMERA-WERK MUNICH

PATENT PART UN3

CW 2539.8 PC / MC 07/02/81

51-vf-ni
0457C

Stand for electronic flash units

The invention relates to a stand for electronic flash units with an electronic flash unit holder and with an ignition circuit that can be activated wirelessly and / or wired.

The invention is based on the object of creating a standing device of the type mentioned at the outset which, on the one hand, is used in a simple and secure manner as a stand for electronic flash devices and, on the other hand, is wireless
and / or wired way from the camera to be recorded is to be ignited when flash readiness is available.

According to the invention this is achieved in that the
Stand device is provided with at least one from a non-use position in one of several stand positions transferable and fixable stand arm, which in
different angular positions for the individual stand positions

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has compared to the frame normal or frame plane and that the stand device has a ready-to-flash display element that is visible within a predetermined angular range is provided. Due to the numerous positions of the stand arm, there is the advantage that the Flash unit can be arranged vertically or inclined at will, whereby the object to be recorded and flashed can be illuminated from different angles to the vertical. In addition, there is the advantage that at different positions of the stand with flash unit to the object to be photographed, the flash readiness is good is visibly displayed. This is advantageously a display element arranged on all sides visible on the housing. According to a further embodiment, the display element is with Control circuit designed as a flashing display element.

According to a further embodiment, two are hinge-like about a common axis relative to one another and independently of one another rotatable upright arms or inactive wings are provided, with a fastening element for locking the two upright arms is provided. The two hinge-like folding stand arms give the stand a special level of stability, because the free-standing housing is supported on both sides of the housing axis (symmetry).

According to a further embodiment, the housing is designed to be circular-cylindrical, at least on the stand side, with the axis of rotation of the two upright arms is aligned with the axis of the housing. The standard arms and the surface line advantageously form the cylindrical underside of the stand housing provides a secure support.

According to a further embodiment, the fastening element is a screw, the head of which has a circumferential shoulder,

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te through which the hinge ring areas or hinge eyes of the

ρ both stand arms are pressed against each other. This has the advantage I given that using a simple i screwing the state arms locked and detached |: can.

Ij The display device advantageously has a

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I Illuminated ring whose axis is aligned with the axis of the housing.

■ In an advantageous manner, there is the light-emitting light from the light i diffusely scattering material, said index elements are arranged below the light ring Req which is a Kontaktverbinf dung at the center contact of the socket connected. The I light ring is part of the fastening screw. This results in a particularly simple training. I.

According to a further embodiment, the housing has an opening with a wide-angle lens behind which a light-sensitive receiver of the ignition switch is provided.

In a particularly advantageous manner, there is a chamber in the housing intended to accommodate at least one battery. This battery is used in particular to supply the display elements the light ring and, if necessary, to supply the ignition switch.

The invention is described below with reference to an exemplary embodiment shown in FIGS. Show it:

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1 and la a flash unit stand and an elec- '■, electronic flash unit for the stand device,

! '· Figure 2 is inserted into the stand device according to Figure 1-Pi' br eight electronic flash unit and

CW 2539.8 PC / MC

Figure 3 is a section through the stand device.

According to FIG. 1, 1 denotes a servo stand for receiving an electronic flash device 2. The servo stand 1 has an essentially circular-cylindrical housing 3, which is provided with a recess 4 and a hot shoe 5 arranged in the. With 6 is a platform-like Approach of the housing 3 referred to, the shape of the cross section of the lower part of the Electronic flash device 2 is adapted. The height of the approach and depth of the recess 4 are chosen so that when inserted Electronic flash device 2 between the top of the lug 6 and the bottom of the electronic flash device only there is a minimal, barely noticeable gap. As a result, the servo stand 1 and the electronic flash device 2 form an integrated unit.

To the circular cylindrical axis of the adapter stand 1 are two stand arms 7 and 8 are rotatably arranged. Both arms 7 and 8 engage in a hinge-like manner around a bearing axis, not shown. The bearing ends of the two arms 7 and 8 are circular (bearing eyes).

9 with an end cap or an end head is referred to, which is part of a fastening screw. At 10 is a light ring of the locking screw 9, under which there are light-emitting diodes in a manner not shown. The light ring itself is made of a material that diffuses the light.

Both stand arms 7 and 8 can be rotated together around the cylinder axis of the housing 3 independently of one another. she can take any position. Their two ends serve as a support on the ground and form together

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with the surface line of the cylinder housing 3 a secure support. When not in use, the leaf 7 is turned in the direction of arrow A against the leaf 8 (position 7 ¹ )

But even in this position, the two wings 7 and 8 can form a stand together with the cylinder housing 1, However, care must be taken that the center of gravity of the electronic flash device 2 is the center line of the cylinder housing 3 does not exceed towards the unsupported side.

The unit consisting of flash device 2 and servo stand 1 can be any forwards or backwards with respect to the vertical be inclined in order to achieve a more or less strong up or down direction of the flash. the Both wing arms 7 and 8 are set in the desired position of the servo stand by means of the adjusting screw 9.

11 with a wide-angle lens is referred to, which is arranged on the front of the cylinder: ', nderhäuseg 3, and behind which is a light-sensitive receiver. This photosensitive receiver can be a photo resistor or but be a phototransistor through which a switching transistor is controlled. This switching transistor is a component an ignition circuit through which the ignition potential reaches the center contact 12. When influencing the behind the converging lens 11 located photo receiver by a main flash or ignition flash is the switching transistor, not shown switched through and the center contact 12 is electrically connected to the contact (not shown) in the flash device shoe 5.

The unit, which consists of a flash unit and servo stand, is positioned at a certain angle to the recording camera in the desired manner arranged in front of or next to the object to be recorded.

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If the unit is made up of the flash unit and servo stand 1, so when this unit is not in use, the wing 7 is brought into the position 7 '. Then both wings become 7 and 8 transferred to a position shown in FIG. In this position the two wings 7 and 8 fill one any free space available on the flash unit.

According to Figure 3 it can be seen that the fastening screw on the one hand in cooperation with the light ring 10 for fixation the two wing arms 7 and 8 is used. During the screwing movement of the locking screw 9 is transferred Force through the light ring 10 on the hinge eyes 7a and 8a. *

With 13 and 14 light elements, preferably light-emitting diodes are referred to, which illuminate the light ring 10 from the inside, which consists of a material that diffuses the light diffusely. The light-emitting diodes 13 and 14 receive their power supply Via resilient contact pins 15 and 16. The contact pins 15 and 16 work with contact rings 17 and 18 on the cylinder housing 3 of the servo stand together. From the two contact rings 17 and 18 lead electrical connection lines 19 and 20 to a control circuit 21, which on the one hand Batteries 22 and 23 is supplied and the other hand has a control line 24 leading to the center contact 12 of the Flashlight device base leads. When the electronic flash unit is ready to flash 2, the control circuit 21 is activated with the consequent effect that the light-emitting diodes 13 and 14 are switched on and indicate to the user that the electronic flash device 2 is ready to flash. The one trained as a wide angle Lens 11 enables the servo switch to be triggered over a large angular range.

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AG FA- G EVA E RT AG

LEVERKUSEN

CAMERA-WERK MUNICH

PATENT DEPARTMENT

CW 2539.8 PC / t * C

07/02/81 51-vf-ni 0457C

Summary;

A standing device for electronic flash units has an ignition circuit that can be activated wirelessly or wired and a stand arm (7, 8) that can be moved from a non-use position into one of several standing positions and fixed there. In the individual stand positions, the
Stand arm different angular positions compared to the frame normal. The standing device (1) is provided with a flash readiness display element (10, 13, 14) that is visible within a predetermined angular range.

Claims (12)

I Ί claims 1. Stand device for electronic flash units with an electronic flash unit socket and with a wireless and / or wired ignition circuit »characterized in that the stand device is provided with at least one stand arm (7, 8) which can be transferred from a non-use position into one of several standing positions and can be fixed there , which in the individual standing positions has different angular positions relative to the frame normal or the frame plane (5) and that the standing device (1) is provided with a flash readiness display element (10, 13, 14) visible within a predetermined angular range. 2. Stand device according to claim 1 / characterized in, that the display element is arranged on the housing (3) so that it is visible on all sides. ·· lit * ti iiii • »1 I I I > ι ι CW 2 539.8 PC / MC 3. Stand device according to claim 1 or 2, characterized in that that two hinge-like around a common axis relative to one another and independently of one another rotatable stand arms or inactive leaves (7, 8) are provided and that a fastening element (9) for locking of the two stand arms (7, 8) is present. 4. Stand device according to claim 3, characterized in that that the housing is circular-cylindrical, at least on the stand side, and that the axis of rotation of the two upright arms is aligned with the axis of the housing. 5. Stand device according to one of the preceding claims, characterized in that the fastening element is a screw, the head of which is circumferential Has approach through which the hinge ring areas or hinge eyes of the two upright arms are printed against each other. 6. Stand device according to one of the preceding claims, characterized in that the display device has a luminous ring (10), the axis of which is aligned with the axis of the housing. 7. Stand device according to claim 6, characterized in that that the light ring consists of the light diffusely scattering material and that display elements under the light ring (13, 14) are arranged, which are connected to the center contact of the socket via a contact connection is. 8. Stand device according to claim 7, characterized in that between the contact connection and the central contact a control circuit is provided for the socket It IfII CW 2539.8 PC / MC is the one with the batteries provided in the stand connected is. 9. Stand device according to one of the preceding claims, characterized in that the luminous ring is part of the fastening screw. 10. Stand device according to one of the preceding claims, characterized in that the housing has an opening with a wide-angle lens, behind which a light-sensitive receiver of the ignition switch is provided. 11. Stand device according to one of the preceding claims, characterized in that a chamber for receiving at least one battery is provided in the housing. 12. Stand device according to one of the preceding claims, characterized in that the stand device
has an approach adapted to the cross section of the flash unit base. For this purpose 2 sheets of drawings