JP2005130255A - Lens controller - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lens controller for performing operation, by discriminating a shot button for a desired zoom position from another shot button, without viewing the shot buttons arranged in a shot box. <P>SOLUTION: In the lens controller, plastic caps 60A-60F are attached to the respective shot buttons 50A-50F of the shot box 10. Projections 62 in the spot patterns of a dice are formed integrally on the surface of the plastic caps 60A-60F. One, two, three, four, five and six projections 62 are formed in the plastic caps 60A, 60B, 60C, 60D, 60E, 60F to be capped on the shot buttons 50A, 50B, 50C, 50D, 50E, 50F corresponding to the numbers "1", "2", "3", "4", "5", "6" of the shot buttons 50A, 50B, 50C, 50D, 50E, 50F. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a lens control device, and more particularly to a lens control device having a shot function for reproducing a predetermined control target such as zoom, focus, iris, etc., to a preset shot position in response to a shot reproduction instruction by a button.

  A control box equipped with a shot function called a shot box is known as a lens control device of a lens device used in a broadcast television camera (for example, Patent Document 1). In the shot function, a desired zoom position is stored in a memory as a shot position in advance, and the zoom is automatically reproduced at the shot position by turning on a shot button provided in the shot box. Further, the shot function is not executed only for zoom control, but is also executed for control of another control target of the lens device such as focus and iris.

Incidentally, in the lens control device of Patent Document 1, six buttons are provided in the shot box, and six shot positions corresponding to the six buttons are stored in the memory. When one of these buttons is operated to give a shot reproduction instruction, the shot position corresponding to the one button is read from the memory, and the zoom position is automatically reproduced at the shot position. Further, in the vicinity of the button, numbers 1 to 6 indicating the number of the button are displayed in the shot box, and the photographer looks at the number and selects and operates the button at the desired shot position.
JP 2001-160912 A

  However, in the conventional lens control device, when the shot button is operated, the photographer needs to look away from the camera finder and search for a desired shot button. There was a problem. Also, when shooting at night or in a dark studio, it is difficult to see the shot button, so it is difficult to recognize what number the shot button is, and this has the disadvantage of hindering automatic playback operation. there were.

  The present invention has been made in view of such circumstances, and an object of the present invention is to provide a lens control device capable of operating a button at a desired zoom position separately from other buttons without looking at the button. .

  In order to achieve the above object, the present invention stores a desired plurality of shot positions in a memory, and gives an instruction to reproduce a shot by operating one of a plurality of buttons corresponding to the plurality of shot positions. A plurality of buttons in a lens control device having a shot function for reading a shot position corresponding to the one button from the memory and reproducing a shot of a predetermined control target such as zoom, focus, and iris at the shot position. Alternatively, in the vicinity of the plurality of buttons, marker members each having a convex portion or a concave portion corresponding to the button number are attached.

  According to the first aspect of the present invention, since the marker member formed with the convex portion or the concave portion corresponding to the button number is attached in the vicinity of the plurality of buttons or the plurality of buttons, the marker can be seen without looking at the buttons. By touching the member with the fingertip and reading the convex portion or the concave portion formed on the marker member with the fingertip, it is possible to recognize the number of the button to which the marker member is attached. Therefore, it is possible to distinguish and operate a button having a number corresponding to a desired shot position from a plurality of buttons without looking at the button. The convex portion or the concave portion may be formed in a number corresponding to the number, or may be formed in the shape of the number corresponding to the number.

  According to a second aspect of the present invention, a number indicating the button number is displayed on the surface of the plurality of buttons, and the marker member attached to the button is a transparent material so that the number can be seen through. It is characterized by being made with. As a result, even if the marker member is attached to the button, the number of the button can be seen through. Therefore, when operating by looking at the button, even though the marker member is attached, the button is the number of the button. It ’s convenient because you know.

  According to the lens control device of the present invention, since a marker member having a number of convex portions or concave portions corresponding to the button number is attached in the vicinity of the plurality of buttons or the plurality of buttons, the button is not seen. Thus, it is possible to distinguish and operate a button having a number corresponding to a desired shot position from a plurality of buttons.

  Hereinafter, a preferred embodiment of a lens control device according to the present invention will be described in detail according to the accompanying drawings.

  FIG. 1 is an external view of a television camera device 12 using a shot box 10 constituting the lens control device of the embodiment. As shown in the figure, a servo-operated lens device 20 is attached to a television camera 18 supported on a pan head 16 of a pedestal 14. Two operating rods 22, 24 operated by a cameraman are extended rearward on the pan head 16, and the shot box 10 is located near the grip of the operating rod 22 via the seat of the mounting member 26. The angle can be adjusted.

  The shot box 10 is integrally provided with a focus demand 28 for manually operating the focus of the lens device 20, and the focus demand 28 corresponds to the focus lens group in the lens device 20 according to the amount of rotation operation of the focus knob 30. A position control signal (focus control signal) for instructing the moving position is transmitted to the lens device 20 via the shot box 10. Based on this focus control signal, the focus lens group in the lens device 20 is driven in the front-rear direction.

  On the other hand, a zoom demand 32 for operating the zoom speed of the lens device 20 is attached near the grip of the operation rod 24. The zoom demand 32 is on the wide-angle side or the telephoto side according to the rotation direction and the rotation amount of the zoom ring 34. A speed control signal (zoom control signal) for zooming is output to the lens device 20 via the shot box 10. Based on the speed control signal, the zoom lens group in the lens device 20 is driven in the front-rear direction by speed control.

  The focus demand 28 is integrally installed in the shot box 10 as shown in FIG. 2, and a focus control signal based on the operation of the focus demand 28 is sent from the lens connector 36 on the lower surface of the shot box 10 in FIG. The data is transmitted to the lens device 20 via the cable 38. Further, a zoom demand connector 42 to which a cable 40 from the zoom demand 32 is connected is provided on the upper surface of the shot box 10 as shown in FIG. The zoom control signal output from the zoom demand 32 is input from the zoom demand connector 42 to the shot box 10 via the cable 40, and from the lens connector 36 on the lower surface of the shot box 10 to the lens device 20 via the cable 38. Sent.

  On the operation panel 44 in front of the shot box 10, rectangular shot buttons (buttons) 50 </ b> A to 50 </ b> F on which numbers 1 to 6 are printed are arranged in a vertical line, and a memo switch 52 and indicators 54 </ b> A to 54 </ b> A are arranged. 54F and a speed adjustment knob 56 are provided at predetermined positions, respectively. Each switch is provided with an LED that is turned on to display an on state.

  The shot buttons 50A to 50F are instructions for registering (storing) and reproducing shot positions related to the zoom. By using these six shot buttons 50A to 50F, up to six shot positions are registered. It can be played. In addition to the zoom, there is a camera that can register and reproduce the shot position for the focus and the like, but in this embodiment, only the shot position related to the zoom can be registered and reproduced.

  The memo switch 52 switches between a registration mode and a reproduction mode, and these modes are switched every time the memo switch 52 is pressed. When the LED of the memo switch 52 is lit (or flashing), it is a registration mode. When any one of the shot buttons 50A to 50F is pressed in this registration mode, the lens at that time corresponds to the shot button. The zoom position in the apparatus 20 is registered (stored) in the memory as a shot position.

  On the other hand, when the LED of the memo switch 52 is turned off, the playback mode is set. In this playback mode, when any one of the shot buttons 50A to 50F in which the shot positions are registered is pressed, registration is performed corresponding to the shot button. The zoom is reproduced at the (stored) shot position.

  If the zoom demand 32 is operated after the shot is reproduced, the shot is released, and the zoom of the lens device 20 is moved based on the operation of the zoom demand 32 from the shot position. However, a switch for canceling the shot may be provided, and the operation of the zoom demand 32 may be invalidated until the shot is canceled by the switch.

  Indicators 54A to 54F are provided on the side of the shot buttons 50A to 50F corresponding to the respective shot buttons 50A to 50F, and light-display the shot positions registered in the shot buttons 50A to 50F. When one of the shot buttons 50A to 50F is turned on, the current zoom position corresponding to the shot button is also displayed. The speed adjustment knob 52 is a knob for setting the zoom reproduction speed during shot reproduction.

  By the way, each of the shot buttons 50A to 50F of the shot box 10 is attached with a rectangular transparent plastic cap 60A to 60F, which is a marker member, covering the shot buttons 50A to 50F.

  On the surface of the plastic caps 60A to 60F, a circular convex portion 62 resembling a dice eye pattern is integrally formed. As shown in FIG. 3, the plastic cap 60A to be put on the shot button 50A includes: One convex portion 62 is formed corresponding to the number “1” of the shot button 50A, and two convex portions 62 corresponding to the number “2” of the shot button 50B are formed on the plastic cap 60B covering the shot button 50B. Portions 62 and 62 are formed. Similarly, as shown in FIG. 2, the plastic cap 60C that covers the shot button 50C has three convex portions 62, 62,... Corresponding to the number “3” of the shot button 50C, and covers the shot button 50D. .. Are formed on the plastic cap 60D corresponding to the number “4” of the shot button 50D. The plastic cap 60E placed on the shot button 50E has the number “ .. Are formed corresponding to the number “6” of the shot button 50F, and the six convex portions 62, 62... Corresponding to the number “6” of the shot button 50F are formed on the plastic cap 60F. 62 ... are each formed in a dice shape.

  According to the lens control apparatus configured as described above, the plastic caps 60, 60... Having the number of convex portions 62 corresponding to the numbers of the shot buttons 50A to 50F are attached to the shot buttons 50A to 50F. Therefore, the cameraman touches the plastic caps 60, 60... With the fingertips without looking at the shot buttons 50 </ b> A to 50 </ b> F, that is, while looking at the finder 46 of the TV camera 18, and the projection 62 formed on the plastic cap 60. By reading the number with a fingertip, it is possible to recognize which shot button of the first to sixth shot buttons the plastic cap 60 is attached to. Therefore, it is possible to distinguish and operate the shot button having the number corresponding to the desired shot position from the plurality of shot buttons without looking at the shot buttons 50A to 50F.

  Further, since the plastic cap 60 is transparent, the numbers “1” to “6” of the shot buttons 50A to 50F can be seen through even if the plastic caps 60, 60... Are attached to the shot buttons 50A to 50F. Therefore, when operating by looking at the shot buttons 50A to 50F, it is convenient to know the number of the shot buttons 50A to 50F regardless of the plastic cap 60 being attached.

  FIG. 4 shows the shot box 10 in which the marker member 70 is attached to the side of the shot buttons 50A to 50F.

  The marker member 70 is formed by integrally forming a number of convex portions 74 corresponding to the numbers of the shot buttons 50A to 50F on a single plastic plate 72. The plastic plate 72 is attached to the side space S of the shot buttons 50A to 50F, one convex portion 74 is located on the side of the shot button 50A, and two convex portions on the side of the shot button 50B. 74, 74 are located, three convex parts 74, 74, 74 are located on the side of the shot button 50C, and convex parts 74, 74 showing "4" are located on the side of the shot button 50D, The convex portions 74, 74,... Indicating "5" are positioned on the side of the button 50E, and the convex portions 74, 74,... Indicating "6" are positioned on the side of the shot button 50F. In short, one convex portion 74 formed in the vertical direction indicates “3”, and the convex portion 74 formed in the horizontal direction indicates “1”.

  Accordingly, the cameraman touches the plastic plate 72 with his / her fingertip without looking at the shot buttons 50 </ b> A to 50 </ b> F, that is, while looking at the finder 46 of the TV camera 18, and the number and shape of the convex portions 74 formed on the plastic plate 72. Is read with the fingertip, it is possible to recognize which shot button the shot button located to the side of the convex portion 74 is. Therefore, it is possible to distinguish and operate the shot button having the number corresponding to the desired shot position from the plurality of shot buttons without looking at the shot buttons 50A to 50F.

  In the marker member of the embodiment, the convex portions are formed as corresponding to the numbers of the shot buttons 50A to 50F, but may be concave portions. Further, the marker member is not limited to plastic, and can be applied even if it is a transparent or translucent member such as rubber. In addition, the number of shot buttons 50A to 50F is confirmed by the number and shape of convex portions and concave portions, but any number can be used as long as it can be discriminated by touching with a finger. You may make it recognize.

The perspective view of the television camera apparatus by which the lens control apparatus of embodiment is mounted Front view of shot box of lens control device of embodiment The principal part expansion perspective view which showed the state in which a plastic cap is attached to the shot button of the shot box shown in FIG. The principal part perspective view which shows the shot box of other embodiment

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Shot box, 12 ... Television camera apparatus, 16 ... Pan head, 18 ... Television camera, 20 ... Lens apparatus, 22, 24 ... Operation rod, 50A-50F ... Shot button, 52 ... Memo switch, 54A-54F ... Indicator , 60A to 60F: Plastic cap, 62, 74 ... Projection, 70 ... Marking member, 72 ... Plastic plate

Claims (2)

A plurality of desired shot positions are stored in a memory, and when a shot playback instruction is given by operating one of the buttons corresponding to the plurality of shot positions, the shot position corresponding to the one button is selected. In a lens control device having a shot function that reads out from the memory and reproduces a shot of a predetermined control target such as zoom, focus, and iris at the shot position,
The lens control device according to claim 1, wherein a marker member having a convex portion or a concave portion corresponding to the button number is attached to each of the plurality of buttons or the vicinity of the plurality of buttons. The number indicating the number of the button is displayed on the surface of the plurality of buttons, and the marker member attached to the button is made of a transparent material so that the number can be seen through. Item 2. The lens control device according to Item 1.

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