JPS63204238A - Electronic flashing device - Google Patents

Abstract

PURPOSE:To improve the operability of an electronic flashing device and to miniaturize its size by providing an ultrasonic motor at one position between a base part and a 1st relay part, the 1st relay part and a 2nd relay part, or the 2nd relay part and a zoom head, and driving one of the 1st relay part, 2nd relay part, and zoom head. CONSTITUTION:The ultrasonic motor 60 is provided at least one position between the base part 20 and 1st relay part 30, the 1st relay part 30 and 2nd relay part 40, or the 2nd relay part 40 and zoom head 50, and one of the 1st relay part 30, 2nd relay part 40, and zoom head 50 is driven. When the ultrasonic motor 60 is powered on, operation symmetry is displaced and the injection and angle range of light vary; when the motor is powered off, the motor stops in the state and holds the operation symmetry and the direction and range of light can be set automatically and continuously. Thus, the ultrasonic motor is used as a driving source for zooming or bouncing, so the operability is improved and the size is miniaturized.

Description

DETAILED DESCRIPTION OF THE INVENTION "Field of Industrial Application" The present invention relates to a strobe device that can change the direction and angular range of light emitted from a light emitting section.

``Prior art'' A strobe device that can change the direction and angular range of light emitted from a conventional light emitting unit uses a zoom head that changes the angular range of light by moving back and forth, swinging at right angles to each other. Generally, the zoom head is supported via a shaft so that it can be angularly displaced, the angle is manually changed and the zoom head is moved back and forth, and the movable part is provided with a moderation mechanism to maintain the posture.

``Problems to be Solved by the Invention'' However, with such conventional strobe devices, manual operation is complicated, and the direction and angle range can only be set in stages using a moderation mechanism, resulting in poor operability. , it is difficult to handle, and if you try to easily operate it with power, there are problems that the structure becomes complicated, large, and expensive.

The present invention has been made in view of these conventional problems, and it is an object of the present invention to solve the above problems and provide a strobe device with improved operability.

"Means for Solving the Problems" The gist of the present invention for achieving the above object is as follows: a base 20; 1 relay section 30, a second relay section 40 supported so as to be angularly displaceable relative to the first relay section 30, and a light emitting section. On the other hand, in a strobe device having a zoom head 50 that is supported so as to be movable back and forth and changes the angular range of light emitted from the light emitting section by the back and forth displacement, a first An ultrasonic motor 60 is provided at at least one location between the relay section 30 and the second relay section 40 and between the second relay section 40 and the zoom head 50. Second relay section 40.
The present invention resides in a strobe device characterized in that any one of the zoom heads 50 can be driven.

"Function" The ultrasonic motor itself is thin, small, and lightweight, and requires almost no space between the base and the first relay part.
mounted at at least one location between the first relay section and the second relay section and between the second relay section and the zoom head;
The displacement of at least one of the relay section, the second relay section, and the zoom head can be adjusted.

When the ultrasonic motor is energized, the operating symmetry is displaced, and the direction and angle range of the light change. When the electricity is turned off, the ultrasonic motor stops in that state and maintains the operating symmetry, automatically and steplessly. It is possible to set the direction and angle range of the light.

"Example" Hereinafter, various embodiments of the present invention will be described based on the drawings.

1 to 6 show a first embodiment of the present invention.

As shown in FIG. 1, the strobe device 10 of this embodiment includes:
a base 20; a first relay part 30 supported by the base 20 so as to be relatively angularly displaceable around a vertical axis L1; and a first relay part 30 supported by the first relay part 30 so as to be relatively angularly displaceable around a horizontal axis L2. The second relay section 40 is provided with a light emitting section and is supported so as to be movable back and forth along the axis L3 relative to the second relay section 40, and the angular range of light emitted from the light emitting section is changed by the displacement. It has a zoom head 50.

The base 20 includes connection legs 11 for connecting to the camera body, a display panel 21 that normally uses a liquid crystal display, a mote selection switch 12, a power switch 13, a zoom bounce selection switch 14, and a zoom bounce movable switch 15. ,
A test light emitting unit 16, a light amount changeover switch 17, a charging completion display 18 also called a ready light, and a dimming confirmation display 19
It is equipped with

In this embodiment, the zoom and bounce mechanisms are all automated, and a rotary ultrasonic motor and a linear ultrasonic motor are installed at each location.

For left and right bounce, as shown in Figure 2, the base 2
0 and the first relay section 30, an ultrasonic motor 60 having a rotational drive shaft centered on the vertical axis L1 is installed.

As is well known, the ultrasonic motor 60 is composed of a rotor 61 and a stator 63 backed up by a piezoelectric element 62, which are pressed together with a lining material 64 interposed therebetween.

For the vertical bounce, as shown in FIG. 3, an ultrasonic motor 60 with the same specifications as the horizontal bounce, which has a rotational drive shaft centered on the horizontal axis L2 in FIG. It is installed between the relay section 30 and the second relay section 40.

Between the zoom head 50 and the second relay section 40, a fourth
As shown in the figure, a linear type ultrasonic motor 60a having a drive axis along the axis L3 in FIG. 1 is installed.

The ultrasonic motor 60a is made up of a linear actuator 65 and a stator 67 backed up by a piezoelectric element 66, which are pressed together with a lining material 68 interposed therebetween.

Next, the effect will be explained.

Select whichever of the desired horizontal, vertical, or zoom positions you wish to move by using the zoom bounce selection switch 14, and only while operating the zoom bounce movable switch 15, you can move the camera by an arbitrary amount.

When left/right bounce is selected with the zoom bounce selection switch 14, when the zoom bounce movable switch 15 is turned on, the ultrasonic motor 60 interposed between the base 20 and the first relay section 30 starts, and the ultrasonic motor 60 rotors 6
1 rotates, and the first relay section 30 rotates around the vertical axis L1. When the zoom bounce movable switch 15 is turned off at a desired position, the ultrasonic motor 60 is stopped, the first relay section 30 is held at that position, and the left and right bounce positions are set steplessly.

When left/right bounce is selected with the zoom bounce selection switch 14 and the zoom bounce movable switch 15 is turned on, the ultrasonic motor 60 interposed between the first relay section 30 and the second relay section 40 starts. , the rotor 61 rotates, and the second relay section 40 rotates about the horizontal axis L2. When the zoom bounce movable switch 15 is turned off at a desired position, the ultrasonic motor 60 is stopped, the second relay section 40 is held at that position, and the vertical bounce position is set steplessly.

When zoom is selected with the zoom bounce selection switch 14, when the zoom bounce movable switch 15 is turned on,
The ultrasonic motor 60a interposed between the second relay section 40 and the zoom head 50 is activated, the linear actuator 65 moves linearly, and the zoom head 50 moves back and forth along the axis L3.

When the zoom bounce movable switch 15 is turned off at a desired position, the ultrasonic motor 60 is stopped, the zoom head 50 is held at that position, the front and rear positions are determined, and the angular range of light is set steplessly.

The display panel 21 displays the setting status of the strobe device 10, and FIGS. 5 and 6 show examples of these displays.

Figure 5 shows vertical bounce, or 15° upward to the optical axis of the strobe light emitting part, and horizontal bounce, or 3 degrees to the left.
06 orientation, the zoom head shows a 35mm light distribution. FIG. 6 shows a downward bounce 76, 45 degrees to the right, and a 50 mm light distribution.

7 to 9 show a second embodiment of the present invention.

The second embodiment requires only one ultrasonic motor, whereas the first embodiment requires three ultrasonic motors.

The number of ultrasonic motors 60 is one, and a switching mechanism 70 is provided thereon, and transmission to each movable part is performed by gears or other mechanisms.

The zoom bounce switching gear 71 is engaged with the drive gear 60b of the ultrasonic motor 60, and the zoom bounce switching gear 7
1, left and right bounce transmission gear 72° and vertical bounce transmission gear 73. The zoom transmission gear 74 is engaged with the left and right bounce transmission gear 72, and the vertical bounce transmission gear 73. Stopper gears 75 and 76 of the zoom transmission gear 74 are provided.

The operation is as follows.

A zoom bounce switching operation is performed by the bounce selection switch 14, the zoom bounce switching gear moves up and down along the axis L4, and the left and right bounce transmission gear 72. Vertical bounce transmission gear 73. It meshes with one of the zoom transmission gears 74. Stopper gears 75 and 76 are interlocked with zoom bounce switching gear 71.

As shown in FIG. 9(a), when the zoom bounce switching gear 71 and the left and right bounce transmission gears 72 are engaged, the vertical bounce transmission gear 73° and the zoom transmission gear 74 are free, and the stopper gear 76 Bounce transmission gear 73. Zoom transmission gear 74 is fixed.

Stopper gear 75 is waiting below.

From this state, as shown in FIG. 9(b), when the zoom hounce switching gear 71 moves upward, the stopper gear 7
5 also moves and engages with the left and right bounce interlocking gear 72 to be fixed.

When the zoom bounce switching gear 71 and the vertical bounce transmission gear 73 are aligned, the stopper gear 75 fixes the left and right bounce transmission gear 72, and the stopper gear 76 fixes the zoom transmission gear 74, as shown in FIG. 9(c). When the zoom bounce switching gear 71 and the zoom transmission gear 74 are engaged, the stopper gear 75 switches the left and right bounce transmission gears 72 . The vertical bounce transmission gear 73 is fixed.

The driving force of the ultrasonic motor 60 is transmitted to each part according to each of the above-mentioned meshing states, and the horizontal bounce, vertical bounce, and zoom settings are performed as in the first embodiment.

In addition, when moving from the movable gear to the stopper gear, use a partial or double gear as shown in FIG.

It is designed not to move unnecessarily.

"Effects of the Invention" According to the strobe device according to the present invention, by using the ultrasonic motor as a drive source for zooming or bouncing, it is easy to set it in any position, and the ultrasonic motor is thin, small, and Since it can also be driven directly, it is more space efficient and smaller than conventional motors. Using only one ultrasonic motor can further improve space efficiency and reduce costs.

[Brief explanation of the drawing]

1 to 6 show a first embodiment of the present invention, FIG. 1 is an overall perspective view of the strobe device, FIG. 2 is a cross-sectional view of the left and right bounce mechanism, and FIG. 3 is a cross-sectional view of the vertical bounce mechanism. cross section,
FIG. 4 is a sectional view of the zoom mechanism, FIGS. 5 and 6 are display examples of zoom and bounce on the display panel, FIGS. 7 to 9 show a second embodiment of the present invention, and FIGS. The figure is a perspective view of the switching mechanism, FIG. 8 is a plan view thereof, and FIG. 9 is an explanatory view showing the switching state. 10... Strobe device 11... Connection leg 14
...Zoom bounce selection switch 15...Zoom bounce movable switch 20...Base 21
...display panel 30...first relay section 40.
...Second relay section 50...Zoom head 60.60a...Ultrasonic motor 61...Rotor 6
3.67... Stator 65... Linear actuator 70...
-Switching mechanism 71...Zoom bounce switching gear 72...Right and left bounce transmission gear 73...Vertical bounce transmission gear 74...Zoom transmission gear 75, 76...Stopper gear

Claims (1)

[Scope of Claims] A base, a first relay part supported so as to be angularly displaceable relative to the base about a vertical axis, and a first relay part supported angularly displaceable relative to the first relay part around a horizontal axis; A zoom that includes a second relay part supported so as to be displaceable, and a light emitting part, and is supported so as to be movable back and forth with respect to the second relay part, and changes the angular range of light emitted from the light emitting part by the back and forth displacement. In a strobe device having a head, at least one location between the base and the first relay section, between the first relay section and the second relay section, and between the second relay section and the zoom head. An ultrasonic motor is provided in the first relay section,
A strobe device characterized in that either a second relay section or a zoom head can be driven.