JPS60209725A - Central controller for wireless adjustment of output of flash device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides the following:
The present invention relates to a central control device for remotely controlling the output of one or more 7-laser systems, in particular wirelessly.

By using this known central control device 2, the spatial positions, outputs, etc. of a plurality of Franche lamps can be adjusted independently of each other, for example via the red Tato line f=. That is, various parameters for adjusting the flash lamp can be controlled wirelessly by the photographer behind the camera. The cameraman then wirelessly selected the light mixer, i.e. the overall illumination, without leaving the work area. If you don't adjust it to correspond to the aperture value and film sensitivity, it will not work. Furthermore, in the case of the known central 1u1'' control device, the photographer can control the 4+
The output of all Franche lamps with the same I1. l
It is necessary to change r by one step or multiple steps. This is mostly done manually. In addition, in response to the measured luminous intensity values, it is also necessary to stop all the flash lamps and change the luminous intensity until it is one color below the luminous intensity target value given in advance by the film sensitivity. Such adjustment is I
It is wasteful during the IJ process, requires many adjustments, and is not necessarily convenient for the conditions of professional photography.

The object of the invention is to make it possible to adjust the output of a controllable flashlight to the desired output in a simple and time-saving manner.

According to the present invention, the above problem can be solved by the characteristic part of the first term in the range of the characteristic=1-M'+V.

The amount of light reaching the subject from the flashlight is
exactly match the desired target value. Because of that, I don't give up,
A closed adjustment system is obtained that automatically adjusts the required amount of light in response to the aperture, film sensitivity or other parameters being adjusted without the assistance of the cameraman. Therefore, the camera operator is provided with the light necessary for perfect photography after performing photometric measurements. In doing so, the light mixing preselected by the cameraman is maintained, ie, the central controller causes the output levels of all controlled flage devices to vary by an equal percentage amount.

The output IJ signal of the photometric probe can be sent wirelessly or using cable 2 to a central controller.

When transmitting by radio, an infrared transmission device is installed at the cow.

Other features of the present invention will become apparent from the following claims, the following description, and the drawings.

One embodiment of the present invention will now be described in more detail with reference to the accompanying drawings.

The device for photographing the subject 5 includes a camera 6, a flash illumination section 4a, and a flash illumination section 7 attached to the laser illumination section. It consists of several flash devices consisting of fX fJ 3a. In the illustrated example of a real vagina, the central organ side 1 device is a feeding flask having a key part as shown in FIG.
Consists of a key device for Ei. The transmission key device is connected via a cable 9 to the photometric probe 7 of the photometric side of the camera 6 . The light intensity measuring device provided integrally in the camera 6 can adjust the values for the aperture and film strength, and in some cases, the values for other parameters such as the filter used, thereby achieving the required luminous intensity. A value is given.

The cameraman behind the camera 6 is connected to the central control unit 12.
Use wireless individual flash devices 3a+4a; 3b,
The outputs of 4b; 3c, c; 3d, 4d can be adjusted as desired, so that the camera mano can
Get the desired light mixing for. When the cameraman shoots a test shot 7 in the vicinity of the photometric device or in the vicinity of the camera, the light incident on the film 10I is detected by the photometric probe 7. In the embodiments illustrated in FIGS. 1 and 2, a photometric device installed in the camera forms a difference signal by comparing the actual measured light intensity value with a predetermined light intensity target value; is sent via cable 9 to central control unit 1. Depending on this difference signal, the central control unit 1 adjusts the preselected output U level of each lighting centering device 3a to 3d so that the actual light layer value corresponds to the preselected luminous intensity target value. Change field by equal par 7/stage 1i to match. In this case, the photographer can photograph the object 5 immediately after firing the test flash, with the luminous intensity corresponding exactly to the target value given in advance by parameters such as the set aperture. ing.

By linking the light intensity measuring device and the central control device 1 according to the invention, an adjustment system is provided which ensures that the actual light intensity value corresponds to the light intensity target value every time an image is taken.

The central control unit 1 shown in FIG. 2 consists of a casing 1' in the form of a rectangular parallelepiped. One longitudinal end of the housing 1' is formed by a housing 11 which has an infrared emitting diode 2 and is transparent to infrared radiation.

On the narrow side of the rectangular parallelepiped casing that faces the infrared emitting diode 2 in the vertical direction, a plug coil/lO
is accommodated in the housing l' of the central unit 6111 device. On the one-width side of the rectangular parallelepiped casing, there is a control 1 for adjusting the output of the individual emitters: ff tM.
There are 11 parts. Below the infrared transmitting casing part of the infrared emitting diode 2, there is a control, 1I.
A code section 13 is provided for each of the 7 lasers capable of IjJJ. In the illustrated embodiment, four stages are provided. That is, the central controller 1 controls four flash devices 3a+4a; 3L+, 4b; 3c+4c: 3d+4d.
Each output can be adjusted individually using the 1171J control function. Below the code section 13, 7
A display 1.eta.S14 for displaying the preselected output of the laser system and a key 15 for increasing the output or a key 16 for decreasing the output 2 are provided at each stage.

As shown by the broken line in FIG. 1, the luminous intensity t! A separate optical layer measuring device 8 or 8' can be used beside or in place of the zero meter. Since the photometric probe 7 placed in the camera measures only the luminous intensity of the film, these optical measuring devices can be used to measure the optical layer of two objects or to measure the luminous intensity of reflected light (1+ll). be able to.

As shown in FIG. 31, a separate photometric device 8 or 8' of this type is connected to the central
1i1J It is advantageous to be able to connect the control device 1.

The device for determining the luminous intensity 1iIll is formed in the shape of a rectangular parallelepiped, like the casing 1' of the central control device 1, its length is approximately half of the casing 1', and the narrow surface is located transversely to the longitudinal direction. It has a corresponding plug module 2 for the plug connection IO. In this case, the plug connection 1o is arranged so as to extend in the vertical direction the rectangular parallelepiped-shaped casing l' of the luminous intensity iJ (!l-determining device 8 is the central control device).

A photometric probe 7' is disposed on the upper wide surface of the photometric device 8. The photometric probe 7' is located approximately in the upper half of the wide surface symmetrically with respect to the longitudinal central axis of the rectangular parallelepiped casing. Vertical center axis and light If ill! l
One adjustment key 11, 12 for adjusting the aperture or film exposure is provided on each side of the fixed probe 7'. Below adjustment keys ll and 12 are given;
Further, one display section 11', 12' for displaying the value 2 is provided. The test flash and measurement flash are embossed on the vertical side of piece 1), so the measurement key 1
7 is installed.

A central control unit l, which has a photometric device 8, controls the output i[(<432
It can be used to measure the photointensity of the object 5 independently of the 3D. Similarly, the photometric device 8 is connected to the central controller 1.
It is also possible to perform certain photometric measurements using a distance from L.

As shown in Fig. 1, this type of photometer measuring device 8°8' is connected to a central control unit through a cable pulley 9,9', and the desired light intensity target value is automatically added to the photometer measurement. It can be made to increase the friction.

In certain applications, it may be advantageous to use, in addition to the photometric probe 7 of the camera 6, a further photometric device 8 or a plurality of photometric devices 8, 8'. For this purpose, the central i+iU control device 1 is provided with a plurality of personnel section J, one of which
Δ(The output signals of each photometric device can be made to match each other.

In addition to the cable connections 9, 9', 9'' shown in FIG. It is advantageous.

In the embodiment according to FIG. 4, the photometric device 8' is placed in the central 1u
LJ? All devices 10 are integrated directly into the casing 1'. In this case, the operating elements of the photometric device 8' and the photometric probe 7' are comprised of an infrared casing part for the infrared emitting diode 2 and a human power source for controlling the optical power of the individual 7 laser devices. 18. An advantage of the embodiment of FIG. 4 is that it does not require long cables or transceivers to transmit the output signal of the photometric device. The camera operator behind the camera can control all functions from the central control unit's installation location, with the actual luminosity value automatically adjusted to the luminosity target value.

If the manually adjusted output of the flash device, for example the diaphragm, is too low, the flash device controlled by the central controller will double in power.

That is, all controlled flash devices have twice the output of the 7JJ output controlled by the central controller. In this way, the practical requirements of professional photography are taken into account.

Central control unit′? i: Corresponding to Figure 4, actual 1 Juit
. . . It is also advantageous to connect the photometric probe F'-7' to the central control unit using a plug connection.

It is also easy to fix the central control device directly to the camera 6.
In this case, the cable 9 shown in FIG. 1 is not required.

[Brief explanation of drawings]

Fig. 1 is a schematic diagram of a subject photographing equipment using a central control unit according to the present invention, Fig. 2 is an enlarged view of the central control unit of Fig. 1, and Fig. 3 is a photometric device connected via a plug connector. FIG. 4 shows the central control device of FIG.
The figure shows a central control unit according to the invention incorporating a photometric device. 1...center! ljl] control device, 3a+4a; 3b+4L+; 3c, 4c; 3d+4d・
・7 rasoshu device, 7.7'... Photometric probe Fig, 2 Fig, 3

Claims (1)

[Scope of Claims] (1) One or a number of seven stages from a transmitting device, which is disposed in a casing and includes a human IJ section for adjusting at least one parameter such as the output of a seven-stage system. A central control unit for remote control of the output of the Lassociue device, in particular by radio; in the 1st steamship, the photometric probes (7, 7') are connected to the central control unit (1) with a predetermined By comparing the luminous intensity target value with the luminous intensity actual value, the light IJt i1! corresponding to the luminous intensity actual value is compared. ! A difference signal is derived from the output signals of the constant probes, and depending on the difference signal, the central controller (1) operates the flash device (3a+4a; :3b+4b;3c.4c).
;3d. 4d) output level -? , a central control device characterized by automatically changing the fishing so that the actual 7111 value corresponds to the target value. (2) The +17 of the patent claim, characterized in that the output level changes of all the 7 laser units that can be assisted by the central control device (1) correspond to equal centage quantities. Central ffjl control device as described in item 1 above. (3) The output signal of the photometric probe (7, 7') is
Central Fl;U control device according to claim 1 or 2, characterized in that it is transmitted wirelessly, in particular in the infrared range, to the central control device (1). (4) characterized in that the photometric probe (7) is coupled to the central control unit (1) via a plug connection (10) which is taken into the casing (1) of the central control unit (1); Paragraph 1 or 4 of the patent claim
Central iUij control device according to clause 12. (5) The optical IW measurement probe (7) is integrated into the casing (1) of the central control unit (1), (6) The formation of the difference signal takes place in the central control device (1) and the human elements (111 12) necessary for presetting the luminosity target value Device (1)
Central control device according to any one of claims 1 to 5, characterized in that it is arranged in a casing (■') of a photometric probe (7). 7] is part of a photometric device (8) which can be coupled to the central control device (1), the formation of the difference signal takes place in the photometric device (8), and the light If 1,11 Any of claims 1 to 5, characterized in that the human element (11112) necessary for presetting the reference value is arranged in the casing of the photometric device (8). (8) The optical measurement probe (7) as a control measurement probe incorporated in the camera (0) is connected to the central control device (1).
) The central control device according to claim 6 or 7, characterized in that the central control device is connected to (9) The photometric device (8) is formed in the shape of a rectangular parallelepiped, and the plug connector (1 (1')) is arranged on the narrower side.
' The central control device according to claim 7. (10) A photometric device (8) attached to the central control device (1) is connected to the central r1. 10. Central control device according to claim 9, characterized in that it is formed as an extension of the rectangular parallelepiped casing (1) of the II control device (1). (1]) Luminous intensity a1 A special fl'l/a1'J function characterized in that a 7ii1 fixed key (17) for carrying out the measurement process is arranged on the narrow side of the child device (8). Range 7th
Central control unit as described in section.