JPH10223040A - Mounting table for photographing and video presenter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mounting table for photographing, which is small-sized, lightweight, and inexpensive and with which a variety of illumination for photographing can be provided. SOLUTION: A mounting table B is provided with a lighting panel for back light illumination P comprising a light guiding plate 2 and a light diffusion plate 1 on a top face thereof, and a lighting apparatus for illumination L equipped with a lamp 12 as a light source for illumination is movably attached on a side part of the mounting table B through a movable arm A1 so that either front light illumination for illuminating a subject on the mounting table B from above the mounting table B by using the lighting apparatus for illumination L with the movable arm A1 being raised with respect to the mounting table B, or back light illumination for illuminating the subject from its back by turning on the lighting apparatus for illumination L with the movable arm A1 and itself being housed in the side parts of the mounting table B and making the lighting panel for back light illumination P, which comprises the light- guiding plate 2 and the light diffusion plate 1, emit light from the side part can be performed using the common lighting apparatus for illumination L.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a photographing stage and a video presenter, and more particularly to a technique effective when applied to a field requiring various illuminations for photographing an object such as a desired document or object. .

[0002]

2. Description of the Related Art For example, in the field of video presentations and the like, various kinds of illumination may be required depending on the type of a subject, the type of a presentation effect, and the like.

Conventionally, a photographing apparatus provided with one or both of backlight illumination and front light illumination has been known as a means for realizing such various illuminations. However, in such an imaging stage having both backlight illumination and front light illumination, each illumination is realized by a separate light source (lamp).

[0004]

As described above, in the case of a photographing stage using both backlight illumination and front light illumination, the structure is complicated and expensive because the light source is separate for each illumination. There are technical issues. Further, since the light source is different for each illumination, it is necessary to reset color temperature correction, white balance, and the like on the imaging device side such as a camera each time the type of illumination is switched, and the operation becomes complicated.
There is also a technical problem. Further, a light source (lamp) for front light illumination is completely useless at the time of photographing by backlight illumination, and a special mechanism is required for storage.
In addition, since such a special mechanism projects from the stage main body, the installation space is unnecessarily increased, and special care is required for handling due to fear of damage in storage and storage.

An object of the present invention is to provide a photographic stage and a video presenter capable of arbitrarily selecting and executing various illuminations such as front light illumination or backlight illumination with a simple operation. It is in.

Another object of the present invention is to provide a photographic stage and a video presenter capable of realizing various illuminations such as front light illumination and backlight illumination at a small size, light weight and at low cost. It is in.

Another object of the present invention is that when photographing is performed by switching various illuminations such as front light illumination and backlight illumination, it is necessary to reset the color temperature of the photographing equipment and reset the white balance each time. An object of the present invention is to provide a photographing stage and a video presenter which are excellent in operability without performing.

Another object of the present invention is to provide a flat box shape without any protruding portions, which facilitates handling such as movement and setting, and has a small occupied space. Another object of the present invention is to provide a shooting stage and a video presenter that do not require special attention.

[0009]

According to the present invention, there is provided a photographic stage in which backlight illumination and front illumination for an object to be mounted are performed by a common light source. More specifically, a stage provided with a lighting panel for backlight illumination on a main surface on which a subject is mounted, and an illumination lamp including a light source for generating illumination light, and illumination from the illumination lamp is provided. Front light illumination that irradiates light directly to the object placed on the stage, and illumination light from the lighting fixture to the object placed on the stage via the backlight lighting panel. The backlight illumination for irradiation is performed using a common illumination lamp.

A video presenter according to the present invention includes a photographing stage on which a backlight and a front light are illuminated by a common light source with respect to an object to be mounted, and an image pickup means for photographing the object. Is included.

[0011]

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

(Embodiment 1) FIG. 1 is a perspective view showing an example of the configuration of a photographing stage according to an embodiment of the present invention, and FIG. Cross-sectional view, FIG.
FIG. 4 is a longitudinal sectional view of a part thereof viewed from the side, FIG. 4 is a longitudinal sectional view of a central portion in the longitudinal axis direction, FIG. 5 is a longitudinal sectional view of a part thereof viewed from the side, FIG. Is a longitudinal sectional view of a central portion in the width direction.

The imaging stage of the present embodiment is a stage B
And a lighting arm L, and a movable arm A1 for controlling the attitude of the lighting lamp L as described later. In the case of the present embodiment, the configuration including the illumination lamp L and the movable arm A1 is arranged in a pair on the stage B, but since both have a configuration equivalent to each other, one configuration will be described below. Will be described.

Reference numeral 3 denotes an enclosure formed of a synthetic resin or the like. A diffusion plate 1 formed so as to diffuse and equalize light by a material or shape is fitted into an opening on the upper surface.
A light guide plate 2 formed of a transparent material and processed so as to generate a uniform reflected light directed upward by light incident from the side end face by means of printing or the like is attached to the lower part by means such as screwing. A backlight lighting lighting panel P is configured, and a bottom plate 4 made of a metal plate or the like is inserted and fixed to the lower surface opening by means such as screwing.
The mounting table B is configured with lighting control means, wiring, etc. (not shown) inside or outside.

A guide rail 5 made of a metal plate or the like and linear cams 6 and 7 are connected to the bottom plate 4 by means such as welding or screwing. The linear cam 7 corresponds to the set of the illumination lamp L and the movable arm A1 on the near side in FIG. 1, and is not shown in FIGS.

Reference numeral 8 denotes a swing arm made of a metal plate or the like, which has a pair of guide pins 9 implanted by means of caulking or the like and a hole through which a pivot sleeve 18 is fitted near one end. The other end is integrally joined to the lamp frame 10 made of a metal plate or the like by means such as welding.

An arm cover 14 made of a synthetic resin molded product or the like is integrally engaged with the swing arm 8 via a plurality of screws 14a and the like to form a movable arm A1.

Further, the lamp frame 10 has a lamp holder 11 made of a metal plate or the like integrally joined by welding or the like, and a lamp 12 such as a fluorescent discharge lamp or the like is sandwiched between both ends by clamping. At the same time, a metal plate or the like integrally inserted and fastened to the grooves formed on the inner surfaces of both ends of the lamp cover 16 formed of a synthetic resin molded product or the like by bonding or high-frequency welding at the front end is used. Hook 1
7 and one end 17a of the lamp cover 16
Has a tongue for detachably engaging the reflector 13 to form the illumination lamp L by inserting and holding the reflector 13.

The other end 17b of the hook 17 is substantially L
The arm cover 14 is engaged by engaging with the engaging claws 15a of the latch 15 formed of a flexible material and screwed to the arm cover 14, and the latch 15 is pressed. The hook 17
By disengaging the arm cover 14, the arm cover 14 can be removed.

The movable arm A1 and the lighting fixture L are integrally formed as described above.
In order to fix the guide rail 5, the swing arm 8 is inserted through a pivot sleeve 18 in which a wave washer 19 having a spring property is fitted in the axial direction, and a washer 20 is fitted in the hole. Guide slit 5a
, And further fitted with a washer 20 and then screwed by a pivot nut 25. At this time spring 2
1 and the cam lever 22 are also fitted to the pivot nut 25 so as to be rotatable.

Here, the guide slit 5a formed in the guide rail 5 has a long hole shape having a longitudinal axis in the horizontal direction, and an upper edge is provided at the outer end of the stage B. A notch 5b into which a pair of guide pins 9 enter.

The pivot sleeve 18 is disposed on the longitudinal axis of the swing arm 8, and a pair of guide pins 9
The pivot sleeve 18 and the pair of guide pins 9 are arranged symmetrically in the longitudinal axis direction near the pivot sleeve 18 so that the inside of the guide slit 5a can slide horizontally.

The cam lever 22 is made of a metal plate or the like.
A follower pin 24 having a through hole in the center of the pivot nut 25 and a cam follower 23 rotatably fitted near one end (driven end 22a) is implanted by caulking or the like. I have. The other end (drive end 22b) of the cam lever 22 is in contact with a lower outer edge of a release sleeve 27 of a release knob 26 described later,
When the release knob 26 is pressed down, the cam follower 23 provided on the driven end 22a opposite to the driving end 22b is displaced in a direction to float up from the upper surface of the linear cam 6 (7).

The spring 21 is a torsion coil spring having a hook. One of the hooks is engaged with the cam lever 22 and the other hook is engaged with the guide pin 9 so as to connect the cam follower 23 to the linear cam 6 (7). The swing arm 8 is attached so as to be pressed against the upper end face and to urge the swing arm 8 in a direction of standing up by the reaction force.

In the linear cam 6 (7), a concave portion 6a () is formed at an end on the central portion side of the mounting table B in correspondence with the cam follower 23 corresponding to the position of the pivot sleeve 18 at the central end portion of the guide slit 5a. 7a) is engraved. Then, the cam follower 23 is inserted into the concave portion 6a (7a).
Is locked, the pivot sleeve 18 (movable arm A1) is fixed at the position of the center side end of the guide slit 5a, and a locking operation for preventing displacement in the horizontal direction is performed.

Reference numeral 27 denotes a release sleeve made of metal or the like. The release sleeve 27 is fitted with a washer 32 and penetrates an oval hole 5c formed in the guide rail 5 to be inserted into the release knob 26 made of synthetic resin or the like. It is screwed to the rail 5 while maintaining a state in which it can slide vertically.
Similarly, a guide sleeve 28 made of metal or the like also fits the washer 32 outside, and the oval hole 5c of the guide rail 5 is formed.
And is screwed to the release knob 26. Also,
The guide sleeve 28 is urged in a direction to be pushed up by a spring 29, and the release knob 26 is pressed and held so as to be always positioned at the upper end of the sliding stroke.

Numeral 30 denotes a side cover made of a transparent synthetic resin plate or the like, which is fitted into a groove formed on the inner surface of the enclosure 3 and is sandwiched between the bottom plate 4 and the bottom cover 4. A cover retainer 31 made of a welded or screwed metal plate or the like is held so as not to bend by an external force.

Although not shown, a power supply cable connected to both ends of the lamp 12 inside the lighting lamp L connects the inside of the movable arm A1 through a connection portion between the lighting lamp L and the movable arm A1. And is inserted through the inside of the pivot sleeve 18 in the axial direction.
Is connected to a dimming mechanism, a switch, and the like, which include an illumination power supply and a variable resistor (not shown), which are arranged in a space between the light guide plate 2 and the bottom plate 4 in the interior of the lamp, to turn on and off the lamp 12, and further, to illuminate A dimming operation or the like for arbitrarily adjusting the intensity of light is performed.

An example of the operation of the imaging stage according to the present embodiment will be described below.

In the state where the lighting lamp L is stored (the state of the lighting lamp L on the near side in FIG. 1) (second position), the opening of the lamp cover 16 is formed by the enclosure 3 and the bottom plate 4. The side of the linear cam 6 is fitted inside the cam lever 22 by a follower pin 24 so as to be rotatable.
Since the cam follower pressed against the upper end surface of (7) is depressed in the concave portion 6a (7a) of the upper end surface of the linear cam 6 (7) and prevents the movable arm A1 from sliding in the horizontal direction,
There is no concern that the fitting may be separated or the like may be hindered in handling such as carrying the entirety of the lamp cover 16 by hand.

When the lamp 12 is turned on in the above-described state, the light is reflected by the reflector 13 and is shielded from leaking outward by the fitting portion, while passing through the transparent side cover 30 through the transparent side cover 30. , The light enters the interior from the end surface, and the backlight illumination lighting panel P emits light to enable photographing by backlight illumination.

On the other hand, when photographing with front light illumination, the release knob 26 is pushed down against the force of the spring 29 (operation S1), and the tip of the drive end 22b of the cam lever 22 facing the release knob 26 is lowered. The cam follower 23 on the side of the driven end 22a is released from the recess 6a (7a) on the upper end surface of the linear cam 6 (7), and the cam follower 23 is released horizontally. Even when the release knob 26 returns to the original position, the cam follower 23 moves again to a position where the cam follower 23 does not fall down (operation S2), and the movable arm A1 also moves laterally and laterally in the horizontal direction, thereby enabling the slide. Become.
This release operation is performed simultaneously on the left and right movable arms A1, but it is of course possible to release this when only one side is locked.

If the movable arm is moved further outward and outward (operation S3), the opening of the lamp cover 16 is disengaged from the engagement with the convex edges of the enclosure 3 and the bottom plate 4, while the movable arm A1 Is urged by a spring 21 to always rotate in the upright direction, but a pair of guide pins 9 implanted in the swing arm 8 can slide on a guide slit formed in the guide rail 5. The movable arm A1 is kept horizontal until it reaches the end of movement because the swing arm 8 is loosely fitted in the rotating direction.

As described above, the guide slit 5a formed in the guide rail 5 is provided with the notch 5b at a position facing the guide pin 9 at the end position of the lateral movement of the movable arm A1. Is turned upright by the spring 21 at this position (operation S4), and the movement of the guide pin 9 is prevented by the inner edge of the notch 5b. It stops at an upright posture in FIG. 1 (first position). When the lamp 12 of the lighting fixture L is turned on in the above-described state, the illumination light emitted from the lamp 12 is applied to a subject such as a document or an arbitrary object (not shown) placed on the stage B. Irradiate directly from above, and it is possible to shoot with front light illumination.

When storing the illumination lamp L, the procedure is reversed. That is, the movable arm A1 is rotated (inverse of operation S4) and slid inward while maintaining the horizontal position (inverse of operation S3), so that the opening of the lamp cover 16 is formed by the convex edge of the enclosure 3 and the bottom plate 4. When the cam follower 23 is moved to the end of the stroke while being fitted to the movable arm A1, the movable arm A1 is automatically locked at the position stored in the recess 6a (7a) at the upper edge of the guide rail 5.

As shown in FIG. 1, if a plurality of illumination lamps L are symmetrically arranged on the stage B, various illuminations on the subject on the stage B can be performed more uniformly. Further, it is needless to say that one of the illumination lamps L may perform front light illumination and the other illumination lamp L may simultaneously perform backlight illumination as needed.

As described above, according to the photographing stage of the present embodiment, any one of the front light illumination and the backlight illumination can be arbitrarily selected and executed by a simple operation. Various lighting can be realized.

Further, the front light and the back light can be illuminated by one common illuminating lamp L, so that each of the front light and the back light has a light source, a power supply unit, control means and the like. Since it is not necessary to provide each of them individually, it is small, lightweight and inexpensive.

Since the common illumination lamp L is used, the light source of the front light and the backlight is the same, and the color temperature correction and white balance on the side of the photographing device such as a camera at the time of photographing are changed each time the light source is switched. There is no need for complicated operations such as resetting, and the operability is excellent.

When the lighting fixture L is housed (backlight illumination), it is integrated with the stage B and does not remain on the upper surface of the stage B;
It is easy to handle such as moving and setting, and also has advantages such as no need to pay special attention to damage to the lighting fixture L in storage and transportation.

(Embodiment 2) FIG. 7 is a perspective view showing an example of a video presenter according to an embodiment of the present invention. The video presenter according to the present embodiment includes a photographing device 51 composed of, for example, a video camera or the like via the support arm 50 on the photographing stage exemplified in the above-described embodiment.
Is attached. Although not particularly shown, the imaging device 51 is connected to, for example, a projection optical device for enlarging and projecting a captured image on a desired screen or the like as necessary.

The stage for photographing is the stage B as described above.
And an illumination lamp L mounted on the movable arm A1 via the movable arm A1. When front light illumination is required, the release arm 26 is operated to raise the movable arm A1 with respect to the stage B in the same manner as described above. A front light illumination for illuminating a desired subject (not shown) on the table B from the illumination lamp L is performed.

When the backlight illumination is required, the lamp 12 is turned on while the illumination lamp L is housed in the side surface of the stage B, and the light guide plate 2 and the diffusion plate 1 are formed. Lighting panel P for backlight illumination
Is emitted, and the photographing by the photographing device 51 is performed.

In the case of the present embodiment, the common lighting fixture L is used in common for the front light illumination and the backlight illumination. Therefore, for example, each time the type of illumination is switched, the color in the photographing device 51 such as a video camera is changed. A complicated operation such as resetting of temperature correction, white balance, and the like is not required, and various photographing can be performed by the photographing device 51 under various illuminations with a simple operation. Therefore, the operability and convenience of the video presenter are improved.

Although the invention made by the present inventor has been specifically described based on the embodiments, the present invention is not limited to the above-described embodiments, and can be variously modified without departing from the gist thereof. Needless to say, there is.

For example, the shooting stage of the present invention is not limited to a video presenter and the like, and can be widely applied to general shooting.

[0047]

According to the photographic stage of the present invention, it is possible to arbitrarily select and execute various illuminations such as front light illumination or backlight illumination with a simple operation. Can be

Further, according to the photographing stage of the present invention, various illuminations such as front light illumination and backlight illumination can be realized in a small, light and inexpensive manner.
The effect is obtained.

Further, according to the photographing stage of the present invention, when photographing by switching various illuminations such as front light illumination and backlight illumination, the color temperature correction of the photographing equipment, white balance, etc. are performed each time. It is possible to obtain an effect that excellent operability can be realized without the need for resetting.

Further, according to the photographing stage of the present invention, the whole can be formed in a flat box shape without any protruding portion, and handling such as movement and setting is easy, and the exclusive space is small. An advantage is obtained in that an excellent photographing stage that does not require special attention can be provided for storage, transportation, and the like.

According to the video presenter of the present invention, it is possible to arbitrarily select and execute various illuminations such as front light illumination or backlight illumination with a simple operation.

Further, according to the video presenter of the present invention, there is obtained an effect that various illuminations such as front light illumination and backlight illumination can be realized in a small size, light weight and at low cost.

Further, according to the video presenter of the present invention, each time when shooting is performed by switching various illuminations such as front illumination and backlight illumination,
The advantage is that excellent operability can be realized without the necessity of resetting color temperature correction and white balance of the photographing device.

Further, according to the video presenter of the present invention, the whole can be formed in a flat box shape without any protrusion,
It is possible to provide an excellent photographic stage that can be easily handled such as moving and setting, has a small occupied space, and does not require special attention for storage and transportation. .

[Brief description of the drawings]

FIG. 1 is a perspective view showing an example of a configuration of a shooting stage according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view of a part of the photographing stage according to the embodiment of the present invention as viewed from above.

FIG. 3 is a longitudinal sectional view of a part of a photographing stage according to an embodiment of the present invention, as viewed from a side.

FIG. 4 is a longitudinal sectional view of a central portion in a longitudinal axis direction of an imaging stage according to an embodiment of the present invention.

FIG. 5 is a longitudinal sectional view of a part of the photographing stage according to the embodiment of the present invention, as viewed from a side.

FIG. 6 is a vertical cross-sectional view of a central portion in a width direction of a photographing stage according to an embodiment of the present invention.

FIG. 7 is a perspective view showing an example of a video presenter according to an embodiment of the present invention.

[Explanation of symbols]

 Reference Signs List 1 diffusion plate 2 light guide plate 3 enclosure 4 bottom plate 5 guide rail (guide means) 5a guide slit 5b notch 5c oval hole 6 linear cam (locking means) 6a recess 7 linear cam (locking means) 7a recess 8 swing arm 9 guide pin DESCRIPTION OF SYMBOLS 10 Lamp frame 11 Lamp holder 12 Lamp (light source) 13 Reflector 14 Arm cover 14a Screw 15 Latch 15a Engagement claw 16 Lamp cover 17 Hook 17a End 17b End 18 Pivot sleeve 19 Wave washer 20 Washer 21 Spring 22 Cam lever 22a Moved end 22b Drive end 23 Cam follower (locking means) 24 Follower pin 25 Pivot nut 26 Release knob (Locking means) 27 Release sleeve 28 Guide sleeve 29 Spring Reference Signs List 30 side cover 31 cover retainer 32 washer 50 support arm 51 imaging device A1 movable arm B mounting table L lighting fixture P backlight lighting lighting panel

Claims (6)

[Claims] 1. A photographing stage, wherein backlight illumination and front light illumination for a mounted subject are performed by a common light source. 2. A lighting system comprising: a stage provided with a lighting panel for backlight illumination on a main surface on which a subject is mounted; and an illumination lamp including a light source for generating illumination light. A front light illumination that directly irradiates the illumination light onto the subject mounted on the stage, and the illumination light from the illumination lamp via the backlight illumination lighting panel; A back light for irradiating the object placed on the object using a common illumination lamp. 3. The photographing stage according to claim 2, wherein
The above-mentioned stage includes a movable arm that supports the lighting fixture, and the movable arm fixes the front of the front light by fixing the lighting fixture at an arbitrary first position above the stage. An operation of performing illumination and an operation of fixing and storing the lighting fixture at a second position on a side portion of the stage described above are performed from the light source of the lighting fixture at the second position. A stage for photographing, wherein the backlight illumination is performed by supplying the illumination light to the backlight illumination lighting panel. 4. The photographing stage according to claim 3, wherein
In the above-mentioned stage, the base of the movable arm is slidably and rotatably supported with respect to the stage, so that the position of the illumination lamp is moved between the first and second positions. Switching means, and locking means for restraining the lighting lamp so that it does not move in the retracted state (backlight illumination execution state) at the second position. A photographing stage, wherein an illumination lamp can be set to the first position during front light illumination by sliding and rotating the movable arm. 5. The photographing stage according to claim 2, further comprising a dimming unit for the light source of the illumination lamp. 6. A photographing stage in which backlight illumination and front light illumination for a mounted subject are performed by a common light source, and imaging means for photographing the subject. Video presenter.