Remote control unit for movie cameras

Abstract

A remote control component for a movie camera, the movie camera having a lens drive motor, the remote control component comprising: a movable operating element for setting control commands for an associated camera; an evaluation and control device for generating a drive motor control signal for the associated camera according to the set control command; a control signal output terminal for transmitting the drive motor control signal to the associated camera; an operation status signal input terminal for receiving an operation status signal from the associated camera; and a feedback signal generator; wherein the evaluation and control device is used to control the feedback signal generator to generate a camera status feedback signal in response to a received operation status signal representing a change of the associated camera from a standby state to a recording state, and the camera status feedback signal is directly or indirectly perceived in at least one of an acoustic or tactile manner.

Description

Technical Field

[0001] The present application relates to a remote control component for a movie camera with a lens drive motor, which includes a movable operating element for setting control commands for an associated camera, an evaluation and control device for generating a drive motor control signal for the camera (including the camera objective) according to the set control command, and a control signal output terminal for transmitting the drive motor control signal to the associated camera. Background Art

[0002] An electronic movie camera generally includes an integrated optical system (e.g., a camera objective and a camera lens) or a lens mount for mounting an interchangeable objective lens (and / or an interchangeable lens); further, it may include an electronic image sensor for generating an image signal from incident light; and an image signal processing device for generating a digital image data stream according to the image signal. A remote control component may be provided to control a conventional movie camera or an electronic movie camera to record a video of a moving image and / or set recording parameters. The recording parameters may include, for example, an image recording rate, a shutter speed, or an aperture diameter, a focus position (definition) or a focal length (magnification factor) of the camera objective lens. The aperture diameter, the focus position and the focal length may be set by a corresponding lens drive motor. The lens drive motor may be integrated in the camera objective lens, or may be generally provided as a separate external device outside the camera objective lens and connected to a rotatable lens mount of the camera objective lens to adjust it. The corresponding lens drive motor may be controlled by a remote control component disclosed, for example, in DE 19629484 A1 and WO 2010 / 046237 A1. As is known, for example, from DE 42 19 331 A1, a plurality of lens drive motors can be used to set a plurality of different recording parameters before and in particular during the recording of moving images.

[0003] In order to maintain the required image details, the camera position usually changes during the recording of a scene. Since the recording parameters of a movie camera can be controlled or set by remote control, it can be possible in particular for the cameraman holding the camera to focus only on the precise camera position direction. However, on the contrary, the respective settings of the recording parameters of the camera may only be performed by the remote control unit operator responsible for this (e.g., a camera assistant or a focus puller), who may set the corresponding control commands of the camera at the remote control unit by moving operating elements. In particular, in this regard, the operator can set a control command sequence approved in advance by the cameraman during the filming.

[0004] While a camera assistant who is paying attention to the scene can easily set up such a control command sequence for the camera during the scene recording, starting or resuming the use of an approved control sequence (caused by an interruption or before shooting) can cause coordination problems. Immediately before shooting begins, a movie camera can be turned on and placed in a standby state, in which the camera is ready to record but has not yet recorded anything. In contrast, at the beginning of shooting, the camera operator must switch the movie camera to the recording state to shoot the scene. However, the camera assistant or focus puller may be standing far away from the scene, and since they may not be able to hear the instructions when recording begins, it may be difficult for them to notice the change in the camera operating state to the recording state.

[0005] To solve this problem, the remote control can send out a signal to notify the camera of the recording state in a visually perceptible manner (e.g., through a flash). However, this requires the camera assistant or focus puller to always pay attention to the remote control to avoid missing the change of the movie camera to the recording state. However, this working method prevents the camera assistant or focus puller from observing the scene to be recorded (e.g., the position of the actors), and there is also the possibility that the aforementioned light signal will be ignored. Summary of the invention

[0006] An object of the present application is to provide a remote control unit for a movie camera which indicates to the operator of the movie camera in a reliable and perceptible manner that the recording state of the camera has changed (ie, the capture of moving images has started).

[0007] This object can be achieved by a remote control unit having the following features. In particular, the remote control unit comprises an operating state signal input for receiving an operating state signal from an associated camera, and a feedback signal generator; wherein the evaluation and control device is used to control the feedback signal generator to generate a camera state feedback signal that can be directly or indirectly perceived acoustically and / or tactilely in response to the received operating state signal representing a change of the associated camera from a standby state to a recording state.

[0008] Since the remote control unit comprises an operating state signal input for receiving operating state signals of the associated camera, the change of the camera from the standby state to the recording state can usually be transmitted to the remote control unit first. As explained above, the operating state of the camera refers to such an operating state in which the camera is usually indeed turned on and ready to record in any case, but no recording is performed. In contrast, in the recording state, the camera is turned on and records the scene (for example, the image data is recorded directly in the camera or in a connected recorder, or the image data is transmitted for remote storage or broadcasting). Generally, the camera can also start recording directly from the switched-off state by turning on the switch, so that in this case the switched-off state also means the standby state of the camera. However, it is usually provided that the camera is first turned on and then set to the recording state by another command (for example, by pressing the "REC" button). In all these cases, there is the problem mentioned above, that the camera switches from the standby state to the recording state directly at the camera by the cameraman (for example, not due to a control command transmitted by the remote control unit), resulting in the camera assistant or focus puller standing far away from the scene may hardly notice the switch.

[0009] The control of the determined camera change to the recording state by the feedback signal generator by means of the evaluation and control device and the generation of a corresponding camera state feedback signal make it possible to draw the attention of the operator operating the remote control unit to the fact that the camera change to the recording state has taken place. Since the feedback signal is perceptible acoustically and / or tactilely, the operator does not have to always pay attention to what is happening in the camera area or to always have the remote control unit in view. The operator can thus also stand at a distance from the camera or can concentrate on the position of the actors and objects in the scene to be recorded. Nevertheless, it is ensured that the operator of the remote control unit actually perceives the actual start of recording so that he can subsequently set a planned or rehearsed control command sequence on the remote control unit.

[0010] Such a camera state feedback signal ensures that the operator's attention is attracted, and since the remote control unit is used to directly generate sound, the camera state feedback signal can be perceived acoustically, for example, directly. For this purpose, the remote control unit can include, for example, a speaker. In addition, the feedback signal generator can be used to generate an indirect acoustically perceptible (i.e. audible) camera state feedback signal. For this purpose, the feedback signal generator can, for example, generate a camera state feedback signal representing audio information in response to the received operating state signal, and the camera state feedback signal can be converted into sound by a converter separated from the remote control unit. For this purpose, the feedback signal generator can be connected or connectable to an external speaker or headphones, through which the sound is ultimately generated or at the speaker or headphones. Alternatively or additionally, a tactilely perceptible camera state feedback signal can also be directly perceptible or can be perceived indirectly, for example by perceiving a vibration of the remote control unit; a signal that can actually be perceived can be generated by a device arranged separately from the remote control unit, which can be carried away, for example, in a trouser pocket or can be worn on an arm joint.

[0011] The operating state signal input of the remote control unit and the control signal output for transmitting the drive motor control signal to the camera can form a common module (e.g. a transceiver) and / or can be part of the evaluation and control device. The evaluation and control device can also be used as a single component (e.g. as a discrete circuit or integrated circuit, microprocessor, ASIC, FPGA, etc.) or can be designed as a module with multiple subcomponents, so that the control signal output and the operating state signal input can be used, for example, as separate modules and can be connected to the evaluation and control device. For example, one subcomponent of the evaluation and control device can also generate the corresponding drive motor control signal according to the set control command, while another subcomponent (which can also be connected to the other subcomponent, for example, only in a signaling manner) controls the feedback signal generator to generate the camera state feedback signal.

[0012] A movie camera associated with a remote control unit can be used for the connection of interchangeable objective lenses. Thus, a movie camera can be equipped with different camera objective lenses adapted to the respective scene. The remote control unit can be used to generate drive motor control signals for a lens drive motor or a motor of a corresponding camera objective lens and transmit them to the camera or a control circuit (which is arranged inside the camera or separately therefrom). In the case of a conventional use of an external lens drive motor, the remote control unit can be used in particular for this purpose.

[0013] In some embodiments, the feedback signal generator may have a speaker, and the camera state feedback signal may include an acoustically perceptible sound signal generated by the speaker. In the present application, the term "speaker" is any kind of sound generator (e.g., a piezoelectric sound generator). In such an embodiment, the camera state feedback signal can therefore be directly perceived acoustically, and the operator of the remote control unit can be directly informed of the change in the recording state of the camera through the remote control unit.

[0014] According to one embodiment, the volume of the sound signal generated by the loudspeaker can be adjustable, so as to ensure, on the one hand, that the operator of the remote control unit can perceive the camera status feedback signal and, on the other hand, to avoid that the sound signal disturbs other persons involved in the recording. To this end, the evaluation and control device can, for example, be connected to a corresponding volume adjuster of the remote control unit and / or can also use an input device that is always present in the remote control unit (which is used, for example, for inputting control commands or for configuring the remote control unit) to adjust the volume of the sound signal.

[0015] Alternatively or additionally, the loudspeaker can be selectively turned off to selectively prevent the generation of audible sound signals. For this purpose, the remote control unit can, for example, have a switch (mechanical switch or virtual switch) through which the generation of audible sound signals can be selectively turned off.

[0016] Particularly, such sound signal can comprise single sound, sound sequence, or synthetic voice instruction.In addition, sound signal can for example be provided repeatedly as single sound, to indicate the recording state of video camera all the time.

[0017] Generally, only sound signals may be generated, wherein the camera status feedback signal may also include other signals, such as tactilely perceptible signals and / or acoustically audible signals.

[0018] The feedback signal generator may have a wired audio signal output and / or a wireless audio signal output, through which the camera state feedback signal can be transmitted to a coupled external sound generator. In such an embodiment, the camera state feedback signal can therefore be perceived (i.e. heard) auditorily in an indirect manner via the external sound generator. In this regard, the wired audio signal output can enable the transmission of an analog or digital audio signal to a connected sound generator, for example to an external speaker or headphones. In such an embodiment, the feedback signal generator may, for example, include a driver that generates an analog driver signal (voltage signal) for the connected sound generator. Due to the audio signal transmitted via the wireless audio signal output, an auditorily perceptible signal can be formed by receiving an external sound generator, depending on the signal format and / or radio protocol used (in particular a Bluetooth connection). In such an embodiment, the feedback signal generator may, for example, have a radio module that generates a camera state feedback signal as a radio signal, in which audio information is encoded. In this regard, transmission to an external speaker or headphones can also be provided, in particular.

[0019] Since the camera status feedback signal is transmitted to the external sound generator, in particular to the earphone, an acoustically indirectly perceptible camera status feedback signal can be generated. In particular, when the earphone is used as the external sound generator, the camera status feedback signal can only be perceived by the operator of the designated remote control unit, and cannot be perceived by other people near the remote control unit; thus, it can be avoided that all relevant persons can hear the camera status feedback signal, thereby avoiding interruption of the recording operation.

[0020] In some embodiments, the remote control unit may include a selector by which the generation of the camera status feedback signal may be selectively blocked. Thus, directly audible feedback signals that may be annoying in certain situations may be selectively suppressed during certain recordings, or in certain situations if these recordings require the full attention of all persons involved anyway, or in the case of, for example, recordings of animals, where an interruption of the recording may be unavoidable due to the acoustic signal.

[0021] In some embodiments, the feedback signal generator may have a loudspeaker and a wired and / or wireless audio signal output, and the evaluation and control device may be used to control the feedback signal in response to the received operating state signal to output the camera state feedback signal via the audio signal output generator, but when an external sound generator is coupled to the audio signal output, the evaluation and control device may be used to block the output of the sound signal generated by the loudspeaker. Thus, the remote control unit may actually have a loudspeaker and may thus be used to generate acoustically directly perceptible camera state feedback signals, usually without the need for additional equipment. However, since an audio signal output is provided in addition to the loudspeaker, such a remote control unit may also selectively enable the output of acoustically indirectly perceptible camera state feedback signals at an external sound generator (e.g. headphones). If such a sound generator is coupled to the audio signal output, it may be achieved by blocking the sound signal generated by the loudspeaker that only the signal that is acoustically indirectly perceptible via the external sound generator is generated. In particular, it may be achieved thereby that, when using headphones, the operator of the remote control unit is actually aware of a change in the recording state of the camera, while suppressing other direct sound signals from the loudspeaker (which in this case are unnecessary and may cause interference).

[0022] In order to automatically suppress the sound signals generated by the loudspeaker, the evaluation and control device can be used to detect the coupling of an external sound generator, in particular headphones, to the audio signal output and thus suppress the output of the sound signals generated by the loudspeaker and / or disable the loudspeaker.

[0023] In some embodiments, the feedback signal generator may include a vibration generator, wherein the camera state feedback signal may include a vibration signal generated by the vibration generator and perceptible to the operator of the remote control unit. Through such a camera state feedback signal that can be directly perceived by the sense of touch, the operator holding the remote control unit can also be aware of the change in the recording state of the camera without having to always keep the movie camera or the remote control unit in sight.

[0024] In particular, the feedback signal generator can be used to generate such a vibration signal, which can be used as an alternative or supplement to a sound signal that is directly and / or indirectly acoustically perceptible. For example, it can be provided that, in addition to the vibration signal that is directly tactilely perceptible, the camera state feedback signal also includes a sound signal that is indirectly perceptible acoustically, which is generated at headphones that are coupled to the remote control unit via the audio signal output. Since this camera state feedback signal that is indirectly perceptible acoustically can be perceived multiple times, for an operator who operates the remote control unit and takes off the headphones (for transmitting the camera state feedback signal) during a break in filming, he / she can perceive the change of the camera to the recording state, for example, through the vibration signal that is tactilely perceptible that is generated in addition. Conversely, an operator who briefly puts down the remote control unit can be informed of the aforementioned change, for example, via headphones.

[0025] The evaluation and control device can be used to control the feedback signal generator to generate another camera state feedback signal that is directly or indirectly perceptible audibly and / or tactilely in response to the received operating state signal that represents the change of the associated camera from the recording state to the standby state. In this way, the end of filming can also be reliably sent to the operator of the remote control unit, so that in such a way of changing the operating state of the camera, there will be no problem in the mutual cooperation between the cameraman holding the camera and the operator. In an embodiment including a selector, the other camera state feedback signal can also be selectively suppressed by means of the selector.

[0026] The camera state feedback signal and the further camera state feedback signal may differ from one another. Due to this distinguishability of the individual camera state feedback signals, it can be achieved that the operator of the remote control component is always aware of which operating state has been changed for the camera. For example, in the case of a directly or indirectly acoustically perceptible feedback signal, the level or frequency of the sounds generated and / or the number of sounds generated may differ from one another, or different sound sequences may be generated, depending on the change in the operating state of the camera. In the case of a tactilely perceptible camera state feedback signal, for example, the number of vibrations that occur may differ.

[0027] In some embodiments, the evaluation and control device can be used to control the feedback signal generator according to the control command set by the operator via the operating element to generate a directly or indirectly audibly and / or tactilely perceptible setting value feedback signal. Thus, in such an embodiment, the feedback signal generator can be used not only to indicate a change in the operating state of the camera, but also, for example, to make the operator aware of the arrival of a control command provided or a position or movement of a moving part of the operating element corresponding thereto (e.g. reaching a predetermined focus position). Thus, the operator can specifically set the control command without having to always keep the remote control component in the field of vision, instead, he / she can continuously observe the scene to be recorded, thereby ensuring that the control command can be set correctly in time. In this regard, the setting value feedback signal can be generated and / or processed in the same way as the above-mentioned camera state feedback signal. Thus, if necessary, the setting value feedback signal can also be sent to an external sound generator and / or can be selectively suppressed.

[0028] The feedback signal generator can be used to generate associated and mutually distinguishable setpoint feedback signals for different control commands. For example, it can be provided that as a result of the adjustment of the operating element, the set control command or the value of the recording parameter set on the camera (e.g. the focus position) is notified to the operator acoustically (e.g. a synthesized voice message). The operator is thus always aware of the settings made.

[0029] The feedback signal generator may comprise an optical signal generator for generating an optically perceptible display signal (as an alternative to or in addition to the camera status feedback signal). By means of such an optically perceptible display signal, the operator may also be informed of changes in the operating state of the camera. Such a display signal may in particular be provided in addition to an acoustically and / or tactilely perceptible camera status feedback signal or with the selective suppression of the camera status feedback signal. For example, even if an acoustically perceptible camera status feedback signal is generated, it may lead to an interruption of the recording operation, whereby the operator of the remote control unit may be informed of changes in the operating state of the camera by means of an optically perceptible signal.

[0030] It can be provided that the remote control unit comprises a base, which can in particular have a handle for holding the remote control unit, wherein the operating element is movable relative to the base, and the control command corresponds to a corresponding position or movement of the operating element relative to the base. The movable operating element can, for example, comprise a button, a switch, a rotary actuator (e.g. an adjustment wheel), and / or a linear actuator (e.g. a slider). In particular, such a movable operating element can comprise a rotatable adjustment wheel, by means of which the desired value of the control command or the respective parameter to be changed at the camera can be set.

[0031] The remote control unit may comprise a display device for displaying at least one symbol, wherein the evaluation and control device may be used to change the position or value of the symbol in accordance with the set control command. Such a display device may enable the operator to check the settings made by the operating element and, if necessary, to change the control command sent to the camera if the set parameter does not have the desired value. In particular, the display device may be used to directly display the value of the set parameter in order to make checking / monitoring as simple as possible.

[0032] In some embodiments, the control signal output can be used to wirelessly transmit the drive motor control signal to the associated camera, and the operating status signal input can be used to wirelessly receive the operating status signal from the associated camera. The control signal output and the operating status signal input can therefore be configured as a radio module or can be connected to a radio module to enable wireless communication between the remote control unit and the associated camera. Thereby, in particular, it can be achieved that the operator of the remote control unit only has to stand at a position close enough to the camera in order to be able to exchange radio signals between the camera and the remote control unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The present application will be described below by way of example only with reference to the embodiments and accompanying drawings, wherein the drawings include the following:

[0034] Figure 1 It is a schematic diagram of a movie camera;

[0035] Figure 2 It is a schematic diagram of the remote control components of a movie camera;

[0036] Figures 3 to 6 Schematic diagrams of possible embodiments of the remote control component are respectively introduced with their working modes. DETAILED DESCRIPTION

[0037] Figure 1A movie camera 13 is shown with a camera body 55, on which an interchangeable objective lens 49 is mounted. The interchangeable objective lens 49 has three lens mounts 16, 18, 20, which can be adjusted by corresponding external lens drive motors 15, 17, 19. From this point of view, for example, a first lens mount 16 can be provided to set the focal length of the objective lens 49, while the desired focal length setting is performed by rotating the second lens mount 18. In addition, a third lens mount 20 can be provided in particular to be able to set the iris aperture opening by a corresponding third lens drive motor 19. From this point of view, the drive motors 15, 17, 19 are part of a lens mount drive component 51 that is connected to the camera body 55 (for example, via a retaining rod), but they are independent components of the movie camera 13. However, the drive motors 15, 17, 19 and the lens mount drive component 51 are associated with the corresponding movie camera 13 via the interchangeable objective lens 49 used. The lens mount drive component 51 may include a communication interface and / or a control circuit for receiving a drive motor control signal or for correspondingly controlling the lens drive motors 15, 17, 19. In addition, a viewfinder 53 is provided at the camera body 55, and a photographer holding the movie camera 13 can focus on the image portion to be recorded with the help of the viewfinder 53.

[0038] Since the movie camera 13 is equipped with an interchangeable objective lens 49 connectable to the camera body 55, it is generally also possible to connect objective lenses 49 of different designs to the camera body 55, in order to be able to flexibly provide a movie camera 13 that can be ideally set up for the scene to be recorded. For example, it is also possible to provide an objective lens 49 with a fixed focal length, which has only two lens mounts 16 and 20 for adjusting the focus position and the aperture opening by means of associated drive motors 17, 19.

[0039] When filming a scene, it can usually be provided that the camera operator moves the camera 13 or its objective lens 49 to focus on the corresponding image segment to be recorded. In contrast, based on the change of the image segment, it is usually necessary for the camera assistant or focus operator to use the remote control unit 11 (whose possible design is as follows) to control the focus of the scene. Figure 2 ) and make corresponding changes to the recording parameters (such as focal length).

[0040] In this respect, the movie camera 13 with the objective lens 49 shown here is only used as an example. Generally, the remote control unit 11 can also be used to remotely set other types of movie cameras 13 or other types of objective lenses 49, which can, for example, have an integrated lens drive motor instead of a lens mount 16, 18, 20, which can be rotated from the outside of the external drive motor 15, 17, 19.

[0041] Figure 2The remote control unit 11 shown has an operating element 21 which is designed as an adjustment wheel and can be rotated relative to the base 45 about the rotation axis D. From this point of view, due to the rotation of the operating element 21 or due to the change of its rotational position relative to the base 45, a control command for the camera 13 can be set, which control command is transmitted as a drive motor control signal S to the movie camera 13 or to the associated lens mount drive unit 51 with the lens drive motor 15, 17, 19 (see also Figures 3 to 6 ).

[0042] like Figures 3 to 6 As shown, the remote control unit 11 for this purpose has an evaluation and control device 23, which is connected to the operating element 21 or the base 45 and is used to detect the set control commands of the camera 13 and generate corresponding drive motor control signals S. In order to transmit the generated drive motor control signals S to the camera 13, the evaluation and control device 23 includes a control signal output terminal 25. In this regard, the control signal output terminal 25 can be connected to a radio module 59 so that the drive motor control signal S can be transmitted to the camera 13 in a wireless manner, in particular via a radio link (see Figure 3 , Figure 5 and Figure 6 ). In particular, this enables the operator of the remote control unit 11 to position himself during filming to have the best view of the recording operation, without the operator having to follow the camera operator in any movement. However, in an alternative embodiment, it can also be provided that the control signal output terminal 25 is connected to the camera connection part 61 by wire, via which the camera 13 or the related external lens mount drive component 51 can be connected to the remote control unit 11 via a wire 57 (see Figure 4 ).

[0043] In order to facilitate checking whether the remotely controlled movie camera 13 is correctly set, the remote control unit 11 also has a display device 47, which is used to display symbols and change the symbols and / or their positions according to the set control commands (see Figure 2 In this respect, in particular, the respective currently set value of the set recording parameter (eg focal length) can be displayed on the display device 47 so that the operator of the remote control unit 11 can immediately check the settings made.

[0044] It is important for a camera assistant or focus puller operating the remote control unit 11 to be able to reliably detect the start of motion picture recording so that the operator can then set a planned or rehearsed control command sequence on the remote control unit 11. In order to indicate this change in the operating state of the camera 13 to the operator of the remote control unit 11 in a reliably perceptible manner, an audible and / or tactilely perceptible signal can be provided.

[0045] To this end, the remote control unit 11 has an operation status signal input terminal 27 for receiving an operation status signal B from the camera 13. Similar to the transmission of the drive motor control signal S via the control signal output terminal 25, the operation status signal B can be transmitted wirelessly via the radio module 59 (see Figure 3 , Figure 5 and Figure 6 ) and / or by wire via the camera connection unit 61 (see Figure 4 ) to receive the operating state signal B. Furthermore, the remote control unit 11 comprises a feedback signal generator 29, wherein the evaluation and control device 23 is used to control the feedback signal generator 29 to generate a camera state feedback signal R that is directly or indirectly perceptible by hearing and / or touch in response to the received operating state signal B that characterizes a change in the recording state of the associated camera 13. Since the feedback signal R is perceptible by hearing and / or touch, it can be achieved that the operator of the remote control unit 11 can reliably be informed of changes in the recording state of the camera 13 even if he / she does not always keep the movie camera or the remote control unit within sight.

[0046] exist Figure 3 In the embodiment shown, the feedback signal generator 29 is connected to a loudspeaker 31 to generate an acoustically directly perceptible feedback signal R. An operating state signal B can be wirelessly received from the camera 13 via the operating state signal input 27 via the radio module 59. In response to the operating state signal B, the evaluation and control device 23 causes the feedback signal generator 29 to generate an acoustic signal T, which forms a camera state feedback signal R in this context via the loudspeaker 31. Due to this acoustically directly perceptible (i.e. directly audible to the human ear) camera state feedback signal R, the operator of the remote control unit 11 can be informed that the recording state of the camera 13 has changed.

[0047] Similarly, according to Figure 4 In an embodiment, in response to the operating status signal B transmitted via the wire 57 and received at the camera connection part 61, such a sound signal T or a camera status feedback signal R that is directly acoustically perceptible can be generated by the speaker 31.

[0048] like Figure 5As shown, the feedback signal generator 29 can also be connected to a radio module 59 (in particular the aforementioned radio module 59 or another radio module), so that the generated camera state feedback signal R can be wirelessly transmitted to the external sound generator 37 (which can be a headset in the example herein). In this regard, a Bluetooth connection according to a universal transmission protocol can be used for transmission. In addition to the radio module 59 acting as a wireless audio signal output 35, the feedback signal generator 29 can also be connected to a wired audio signal output 33 (for example a headphone socket), and the external sound generator 37 can be connected to the remote control component 11 (see also) via the wire 57 through the wired audio signal output 33. Figure 6 ).

[0049] By transmitting the camera state feedback signal R to an external sound generator 37, in particular to headphones, an indirect acoustically perceptible camera state feedback signal R can be generated, i.e., a camera state feedback signal R acoustically perceptible at the connected sound generator 37. By means of such transmission to headphones 37, it is possible in particular for the operator of the remote control unit 11 to reliably learn about changes in the operating state of the camera 13 without being disturbed by other people standing near the camera, for example, through the direct acoustically perceptible camera state feedback signal R (e.g., shouting). For this purpose, Figure 6 As shown, the evaluation and control device 23 can be used to automatically block the sound signal T generated by the loudspeaker 31 when an external sound generator 37 is connected to the remote control unit 11. Similarly, the sound signal T can also be blocked if a wireless connection between the radio module 59 and the external sound generator 37 is detected. It can also be generally provided that the remote control unit 11 is not equipped with a loudspeaker 31, but only generates the indirectly audibly perceptible camera state feedback signal R via the external sound generator 37, in particular at headphones.

[0050] Furthermore, if Figure 5 and Figure 6 As shown, the feedback signal generator 29 can also generally have a vibration generator 41 in addition to the speaker 31 (but it is not necessary and can be used as an alternative), so that the camera state feedback signal R can include a vibration signal V that is directly tactilely perceptible. Through this tactilely perceptible vibration signal V, the operator holding the remote control unit 11 during the interruption of the recording operation can also directly and definitely know that the recording state of the camera has changed. In addition, the feedback signal generator 29 can be connected to an optical signal generator 43 to be able to additionally indicate to the operator of the remote control unit 11 that there is a change in the recording state of the camera 13 through an optically perceptible display signal A.

[0051] Furthermore, it can also be provided that, in the event that the camera 13 changes from the recording state to the standby state, the evaluation and control device 23 can also be used to control the feedback signal generator 29 to generate an acoustically and / or tactilely perceptible camera state feedback signal R. The camera state feedback signals R can in this respect in particular differ from one another depending on the change that has occurred. Furthermore, the remote control unit 11 can comprise a selector 39 (e.g. a mechanical switch or a virtual switch), by means of which the generation of the camera state feedback signal R for the respective operating state signal B can be selectively prevented (see Figure 6 ). Alternatively or additionally, the remote control unit 11 can have a switch 39, by means of which the generation of the acoustic signal at the loudspeaker 31 can be selectively switched off.

[0052] Similarly, it can be provided that the evaluation and control device 23 is used to generate an acoustically and / or haptically perceptible set value feedback signal E via the feedback signal generator 29 as a function of the set control command. For example, it can be provided that an acoustically perceptible sound signal T can be generated via the loudspeaker 31 or the external sound generator 37 when a parameter of the camera 13 is a predetermined value. The operator of the remote control unit 11 can thus always keep an eye on the recording operation during the setting of the camera 13 or the objective lens 49 without having to look at the remote control unit 11 to check the settings. In this respect, the set value feedback signal E can be processed in a similar manner to the camera status feedback signal R and, for example, can also be sent to the coupled external sound generator 37.

[0053] Although Figures 3 to 6 In the figure, the control signal output 25 and the operating state signal input 27 are included in the evaluation and control device 23, but the control signal output 25 and the operating state signal input 27 can also be provided as separate modules and can be connected only to the evaluation and control device 23. In addition, the control signal output 25 and the operating state signal input 27 can be used as universal modules, for example, configured in the form of a transceiver. In addition to the radio module 59 provided separately, the control signal output 25, the operating state signal input 27 and the feedback signal generator 29 themselves can also have corresponding radio modules or can be configured as radio modules.

[0054] The remote control unit 11 can thus provide a simple way to inform its operator that the associated movie camera 13 has changed from standby mode to recording mode and ensure that it is aware of this change in operating mode. Thus, interruptions of the recording operation due to the lack of recording start and the resulting lack or delayed setting of parameters of the camera connection unit 14 can be reliably prevented.

[0055] Reference numerals list

[0056] 11 Remote Control Components

[0057] 13. Movie Camera

[0058] 15. First lens drive motor

[0059] 16 First lens adapter

[0060] 17 Second lens drive motor

[0061] 18 Second lens adapter

[0062] 19 Third lens drive motor

[0063] 20 Third lens adapter

[0064] 21 Operating elements

[0065] 23 Evaluation and control device

[0066] 25 Control signal output terminal

[0067] 27 Operation status signal input terminal

[0068] 29 Feedback signal generator

[0069] 31 Speakers

[0070] 33 Wired audio signal output

[0071] 35 Wireless audio signal output

[0072] 37 External sound generator

[0073] 39 Selector, switch

[0074] 41 Vibration generator

[0075] 43. Optical signal generator

[0076] 45 Base

[0077] 47 Display device

[0078] 49 Interchangeable objectives

[0079] 51 Lens mount drive components

[0080] 53 Viewfinder

[0081] 55 Camera Body

[0082] 57 Wire

[0083] 59 Radio Module

[0084] 61 Camera connection

[0085] A Display signal

[0086] B Operation status signal

[0087] D Rotation axis

[0088] E Setting value feedback signal

[0089] R Camera status feedback signal

[0090] S Drive motor control signal

[0091] T Sound signal

[0092] V Vibration signal

Claims

1. A remote control unit (11) for a movie camera (13) having a lens drive motor (15, 17, 19), characterized in that: include: A movable operating element (21) for setting control commands for an associated camera (13); An evaluation and control device (23) for generating a drive motor control signal (S) for an associated camera (13) according to a set control command; A control signal output terminal (25) for transmitting a drive motor control signal (S) to an associated camera (13); an operating status signal input terminal (27) for receiving an operating status signal (B) from an associated camera (13); and Feedback signal generator (29); The evaluation and control device (23) is used to control the feedback signal generator (29) to generate a camera state feedback signal (R) in response to a received operation state signal (B) representing a change of the associated camera (13) from a standby state to a recording state, wherein the camera state feedback signal is directly or indirectly sensed in at least one of an acoustic or tactile manner, The camera (13) changes from a standby state to a recording state. yes It is triggered directly at the camera, rather than due to a control command transmitted by a remote control unit.

2. The remote control component (11) according to claim 1, characterized in that: The feedback signal generator (29) has a speaker (31), and the camera state feedback signal (R) includes an audible sound signal (T) generated by the speaker (31).

3. The remote control component (11) according to claim 2, characterized in that: The volume of the generated acoustic signal (T) is adjustable.

4. The remote control component (11) according to claim 2, characterized in that: The remote control unit (11) has a switch (39) by means of which the generation of the acoustic signal (T) can be selectively switched off.

5. The remote control component (11) according to claim 1, characterized in that: The feedback signal generator (29) has at least one of a wired audio signal output (33) or a wireless audio signal output (35), through which a camera state feedback signal (R) can be transmitted to a coupled external sound generator (37).

6. The remote control component (11) according to claim 1, characterized in that The remote control unit (11) includes a selector (39) by which the generation of the camera status feedback signal (R) can be selectively prevented.

7. The remote control component (11) according to claim 1, characterized in that The feedback signal generator (29) has a loudspeaker (31) and a wired audio signal output (33) and / or a wireless audio signal output (35); the evaluation and control device (23) is used to control the feedback signal generator (29) to output a camera status feedback signal (R) via the audio signal output in response to a received operating status signal (B), but when an external sound generator (37) is coupled to the audio signal output (33, 35), the evaluation and control device is used to prevent the sound signal (T) generated by the output loudspeaker (31) from being output.

8. The remote control component (11) according to claim 1, characterized in that The feedback signal generator (29) has a vibration generator (41), and the camera state feedback signal (R) includes a vibration signal (V) generated by the vibration generator (41) and can be felt by an operator of the remote control unit (11).

9. The remote control component (11) according to claim 1, characterized in that The evaluation and control device (23) is used to control the feedback signal generator (29) to generate another camera state feedback signal (R) in response to a received operating state signal (B), wherein the operating state signal (B) represents a change of the associated camera (13) from a recording state to a standby state, and the other camera state feedback signal (R) is directly or indirectly perceived in at least one of an acoustic or tactile manner.

10. The remote control component (11) according to claim 9, characterized in that The camera state feedback signal and the another camera state feedback signal are different from each other.

11. The remote control component (11) according to claim 1, characterized in that The evaluation and control device (23) is used to control the feedback signal generator (29) according to the control command set by the operating element (21) to generate a set value feedback signal (E), which is directly or indirectly perceived in at least one of an acoustic or haptic manner.

12. The remote control component (11) according to claim 1, characterized in that The remote control component (11) comprises a base (45), the operating element (21) is movable relative to the base (45), and the control command corresponds to a corresponding position or movement of the operating element (21) relative to the base (45).

13. The remote control component (11) according to claim 1, characterized in that The control signal output terminal (25) is used to wirelessly transmit the drive motor control signal (S) to the associated camera (13), and the operation status signal input terminal (27) is used to wirelessly receive the operation status signal (B) from the associated camera (13).

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