JPH0887056A - Stroboscopic device for photographing - Google Patents

Abstract

PURPOSE: To obtain a stroboscopic device capable of catch light photographing for obtaining a vivid photograph where the eyes of a subject person are brightened by making light incident on the eyes of the subject person by changing a part of irradiating light at the time of bounce photographing to the irradiating light along the optical axis of the camera. CONSTITUTION: Since a Fresnel lens 4 is a positive lens and a flash light emitting tube 1 and a reflection umbrella 2 move back and forth within the focal distance of the lens 4 with the movement of a movable housing case 3, the reflection angle of flash light becomes smaller as the flash light emitting tube 1 and the reflection umbrella 2 move from a continuous line position to a broken line position. An irradiation angle changing panel 6 and a panel supporting part 7 are coupled through a hinge so that a relative angle between them may be changed. By using the panel 6, a part of the light emitted from the flash light emitting tube 1 irradiating all the things to be used as a reflector such as ceiling and wall, etc., at the time of bounce photographing is changed to the irradiating light along the optical axis of the camera.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a strobe device used as an artificial light source for photographing, and more particularly to a so-called bounce strobe device capable of selecting various irradiation directions.

[0002]

2. Description of the Related Art Conventionally, there has been a demand for a strobe device capable of easily realizing a large-scale shooting using a reflector plate in a studio shooting even with a small camera such as 35 mm, and bounce shooting capable of easily changing a light emission irradiation direction. Various possible strobe devices have been put to practical use.

However, in the bounce photographing with the strobe device as described above, a special soft photographing effect is expected by irradiating the subject with light by using the ceiling or the wall as a reflecting surface to illuminate the subject. However, the subject is exposed to light from directions other than the front.

Therefore, when the subject is a person or an animal, there is no light radiated from the front, so light often does not enter the eyes of the person or the animal. However, there is a problem in that it is not preferable in terms of photography.

Therefore, in the case of performing bounce photography, in consideration of the above problems, another strobe device is used so that the subject can be irradiated with light from the front, and a strobe device capable of bounce photography can be used. The company has also provided a strobe device in which another light emitting unit is provided on the main body.

However, since the strobe device used in the former method is two lights, the preparatory work such as setting before shooting and adjusting the exposure amount between the two lights is troublesome, and bounce shooting is easily performed with a strobe device capable of bounce shooting. It loses its basic effect. In the latter case, the stroboscopic device having two light emitting parts is complicated to construct, and there are problems such as an increase in cost and operability.

[0007]

In order to solve the above problems, there has been proposed a device in which a white plate is provided substantially vertically to the front part of the Fresnel lens of the light emitting part. Since it is provided, the cost is increased and since the position where the reflector is set is not detected electrically, a warning display etc. cannot be displayed, so if you set this reflector when you do not bounce killing There has been a problem that the irradiation light causes a peeling.

(Object of the Invention) An object of the present invention is to provide a strobe device which enables catch light photography without increasing the cost and can display the catch light photography state on an information display panel provided on the back of the strobe device. It is to be.

[0009]

The present invention utilizes an irradiation angle conversion panel incorporated in a strobe device used as an artificial light source for taking a picture to utilize a part of the irradiation light at the time of bounce shooting. Providing a strobe device capable of catch light photography that changes the irradiation light along the optical axis of the camera so that the light enters the eyes of the person being photographed and obtains a lively photograph with a bright eye .

[0010]

Embodiments of the present invention will now be described in detail with reference to the drawings.

FIG. 1 is a sectional view of a light emitting head portion of a strobe device having an irradiation angle conversion panel which enables the catch light photographing according to the present invention, and shows the housing state of the irradiation angle conversion panel. A flash arc tube 1 and a reflector 2 for reflecting flash light emitted from the flash arc tube 1 forward (to the left in the drawing) are fixedly mounted in a movable storage case 3. The movable storage case 3 is movable between a position shown by a solid line and a position shown by a broken line in order to change the irradiation angle of the flash light.

A Fresnel lens 4 is provided in front of the flash arc tube 1.
Is provided. The Fresnel lens 4 is formed with irregularities having a positive power, the entire circumference of the lens 2 is fitted in the outer box 5, and the respective members behind it are almost sealed in the outer box 4. There is.

The Fresnel lens 4 is a positive lens,
In addition, since the flash tube 1 and the reflector 2 move back and forth within the focal length of the Fresnel lens 4 as the movable storage case 3 moves, the flash tube 1 and the reflector 2 move from the solid line position to the broken line position. As it moves, it changes so that the reflection angle of the flash becomes smaller (a so-called zoom strobe device).

The irradiation angle conversion panel 6 and the panel support portion 7 are hinged so that the relative angle can be changed, and are housed in the upper housing portion 5a of the strobe head outer case 5. The projection 6 for pulling out the irradiation angle conversion panel 6
There is a. A sliding brush 7a is arranged on the panel support portion 7, and a switch for displaying the state of the irradiation angle conversion panel 6 on a display described later is constituted by a pattern formed on the printed board 8. There is.

The light emitting head portion can freely change the irradiation optical axis with respect to the strobe device body 9 to enable bounce photographing. A switch (not shown) for detecting the bounce state is provided, and this state can be displayed on a display device described later.

FIG. 2 is a sectional view showing a state in which 6a of 6 is pulled out to the front of the strobe device (to the left of the drawing), and 6 covers substantially the entire front surface of 4. 6 is made of acrylic, and innumerable pyramidal diamond-cut prisms 10 are formed on the surface facing 4 as shown in the enlarged view of FIG. 3 (FIG. 4). 6 makes it possible to further widen the irradiation angle of the flashlight emitted from 1 and 2 than the maximum irradiation angle by moving 3 (so-called wide panel). Although a wide panel will be described in the present embodiment, it is also possible to configure a panel (so-called telepanel) which is narrower than the minimum irradiation angle.

In FIG. 5, 5 is turned up substantially vertically and in a bounce photographing state, and 6 is pulled out to the front of the strobe device (to the left of the drawing) to a position slightly ahead of FIG. FIG. 6 is a diagram showing a state when the catch light is photographed, which is arranged in the. 6, a diamond cut prism 10 is formed as shown in the enlarged view of FIG.
It is possible to irradiate the flash light from 2 and 2 upward for bounce shooting (dashed line) and also to irradiate a part of the flash light in the direction of the eyes of the subject (broken line).

6 and 7 in the position shown in FIGS.
A click mechanism (not shown) is formed by a protrusion 7 and a locking groove 5 to hold the lock mechanism.

In FIG. 3, a part of the flash light from 4 is reflected on the slope 10 and is emitted toward the subject. Further, the surface of 10 is subjected to matte processing, which suppresses unevenness of irradiation light in the case of FIG. 2 and improves diffusivity in the case of FIG.

Further, as shown in FIG. 7, the catch light effect can be improved by disposing the prism 11 as shown in the drawing on the surface opposite to the surface 10 perpendicularly to the paper surface. In the figure, a part of the flash light from 4 is reflected on the slope 10 as shown in FIG. 2, and a part of it is refracted as shown in the figure to enter the inside of 6. This light is reflected by 11 and refracted by the slopes of 10 so that flash light can be emitted from almost the front of the subject.

FIG. 8 shows an example of the display contents displayed on the liquid crystal display 9 arranged on the back side of the state 6 by the switch composed of 7a and 8.

FIG. 8A shows display contents showing the state of FIG. It is a normal TTL strobe shooting state display, the lens of the camera body has a focal length of 28 mm, and the strobe is an auto-zoom device (not shown) so that the position 3 is the irradiation angle corresponding to the field angle of 28 mm. It has become. The aperture of the lens is set to F2.0, and the TTL light adjustment linked distance range according to the aperture value and the irradiation angle is displayed in a semi-analog display.

FIG. 8B is a display content showing the mounted state of the wide panel of FIG. The strobe is moved by an auto-zoom device (not shown) to a position where the position 3 becomes an irradiation angle corresponding to an angle of view of 18 mm. The aperture of the lens is set to F2.0, and the TTL light adjustment linked distance range according to the aperture value and the irradiation angle is displayed in a semi-analog display.

FIG. 8C is a display content showing a bounce photographing state before pulling out the wide panel 6 of FIG. 5, and 12 is turned on. The strobe is moved by an auto zoom device (not shown) to a position where the position 3 becomes an irradiation angle suitable for bounce shooting. The aperture of the lens is set to F2.0.

FIG. 8D shows display contents showing the catch light photographing state of FIG. When the wide panel is pulled out subsequently to FIG. 8C, 13 is turned on. Lens aperture is F
It is set to 2.0.

FIG. 9 shows a circuit for driving the liquid crystal display, and 7a slides on patterns 8a and 8b formed on 8 to form a switch for detecting the state of 6.
A switch 14 is turned on when the bounce state is set. Each switch is connected to the input port of the microcomputer 15. Reference numeral 16 denotes the liquid crystal panel, which is connected to 15 output ports.

[0027]

As described above, according to the present invention,
A flash discharge tube that illuminates everything that is used as a reflector such as a ceiling or wall during bounce shooting, using the flash conversion panel built into the strobe device used as an artificial light source during photography. A part of the emitted light of is changed so that it becomes the irradiation light along the optical axis of the camera, so that the light is incident on the eyes of the person being photographed, and a vivid and vivid photograph is obtained. Is.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a housed state of an irradiation angle conversion panel.

[Fig. 2] Illumination angle conversion panel mounted state (wide shooting state)
FIG.

FIG. 3 is an enlarged cross-sectional view of an irradiation angle conversion panel.

FIG. 4 is a plan view of an irradiation angle conversion panel.

FIG. 5 is a cross-sectional view showing a catch light photographing state.

FIG. 6 is a cross-sectional view showing a catch light photographing situation.

FIG. 7 is an enlarged cross-sectional view of an irradiation angle conversion panel of a second embodiment.

FIG. 8 is a diagram showing a display example of a liquid crystal display.

FIG. 9 is a diagram of a drive circuit of a liquid crystal display.

Claims (6)

[Claims] 1. A bouncing strobe device capable of changing a light irradiation direction, the strobe device being arranged substantially parallel to a light emission optical axis above a strobe light emission part and changing angles with respect to each other. An irradiation angle conversion panel axially supported with respect to each other, and a supporting member for supporting the panel, the supporting member changing the irradiation angle with a first position at which the panel can catch light. A strobe device for photography, which can be set in 2 positions. 2. The panel according to claim 1, wherein in the first position, the panel is arranged substantially parallel to the supporting member and substantially perpendicular to a Fresnel lens arranged on the front surface of the light emitting portion, In the second position, the panel is bent by about 90 ° with respect to the support member, and is arranged so as to cover the front surface of the Fresnel lens, and the strobe device for photography is characterized in that. 3. The strobe device for photographing according to claim 1, further comprising display means for displaying the state of the first position and the state of the second position. 4. The photography according to claim 1, further comprising an irradiation angle conversion panel in which a mountain-shaped prism is arranged on a surface facing the Fresnel lens at a second position of the irradiation angle conversion panel. Strobe device. 5. The strobe device for photography according to claim 4, wherein the prism is provided with an irradiation angle conversion panel having a diamond cut shape. 6. The strobe device for photography according to claim 1, further comprising an irradiation angle conversion panel in which a second prism portion is arranged on the back surface of the prism.