JP2002148708A - Close-up frame with three-dimensional pedestal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a close-up frame such as a light shielding hood generally used for diversified photographing device such as a digital camera, and made compact, strong and good for practical use. SOLUTION: In a method for fixing the close-up frame on the photographing device, the vertical groove of a pedestal base part and the horizontal groove of a camera attaching part are connected crosswise by a pedestal fixing screw so as to attach the photographing device by moving type camera fixing screws provided in the front and rear grooves of the camera attaching part, whereby a fixed position tolerance is largely secured in a three-dimensional direction, that is, up and down, right and left and back and forth. Therefore, positional adjustment can be realized in terms of most of machine kinds whatever positional relation the optical axis of the lens and a tripod hole of the camera have.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a simple close-up device such as a light-shielding hood and a close-up frame in close-up photographing by a photographing device such as a digital camera or a 35 mm camera.

[0002]

2. Description of the Related Art Conventionally, for close-up photography such as taking a picture or close-up photography of an electrophoretic gel by irradiating ultraviolet rays, there has been an imaging method using a close-up stand composed of a pedestal and a column with a movable head. Since it was large and heavy, and it was difficult to carry and use it, it had to be installed and used in a certain place. As a method of easily carrying and easily defining the distance and range of an imaging target, there has been a method of using a close-up frame when taking a close-up of a printed matter, a pathological specimen, or the like. In the case where external light must be shielded, such as when photographing excitation light of an electrophoresis gel, there has been a method in which the entire periphery of the frame is covered with a light-shielding plate and used as a light-shielding hood. Examples of the close-up frame type include various frame kits for enlarging or reducing a “Polaroid CU-5 close-up camera” manufactured by Polaroid Corporation (Cambridge, Mass., USA) shown in FIG. 4. As the light-shielding hood method, Asanuma Camera Mechanical Laboratory Co., Ltd. (Hirakawa-cho, Chiyoda-ku, Tokyo) shown in Fig. 5
Examples include a "CRT camera M-105" manufactured by Funakoshi Co., Ltd. (Hongo, Bunkyo-ku, Tokyo) "Polaroid camera DS-300 with mini gel hood" and the like.
However, each of these photographing apparatuses is a dedicated apparatus in which a camera body and a close-up frame are set, and these close-up frames cannot be applied to other photographing apparatuses.

For use with a 35 mm single-lens reflex camera, "ACM" manufactured by Asanuma Camera Mechanical Laboratory
There is an example of "EL 35mm camera hood", but in the case of 35mm single lens reflex camera, even if the manufacturer and model are different, the positional relationship between the optical axis of the lens and the tripod hole is almost the same, so there was some flexibility in the left and right direction This made it possible to use it on other models. However, it could not be applied to small cameras other than 35 mm single-lens reflex cameras, mid-range cameras, and the like.

As a product whose camera mounting position can be adjusted, there is a "Screen Shooter" manufactured by NPC Corporation of the United States (Newton, Mass., USA) shown in FIG. 6, but the mechanism is large and complicated as shown in the figure. Lack of robustness, many parts need adjustment and many screws,
Not only was it difficult to handle, but there were also many protrusions, so it was even dangerous. For this reason, it did not spread in the market.

[0005] Today, electronic, especially digital, photographing devices are rapidly becoming widespread. However, the size and shape of each device are completely different for each model, and the product life cycle is short and rapidly changing. And increasingly smaller. There has been a demand for a close-up frame having a small and robust mechanism that can easily cope with these innumerable models, sizes and changes, and can be used for general purposes.

[0006]

A problem to be solved by the present invention is a light-shielding hood that can be used for general-purpose photographing devices, such as digital cameras, which are evolving, diversified, and miniaturized in an era of rapid change. And to provide a close-up frame system. It is another object of the present invention to provide a compact, robust, and easy-to-use product that meets the market needs of “short, light and light”.

[0007]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a cross-shaped connection between a vertical groove provided on a base of a pedestal and a horizontal groove provided on a camera mounting portion. In addition, a movable camera fixing screw is arranged in the front and rear grooves provided in the camera mounting part, so that the allowable range of the fixing position of the photographing device can be increased in the vertical, horizontal, front and rear directions despite being a small mechanism, The most important feature is that adjustment is possible regardless of the positional relationship between the lens optical axis and the tripod hole.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION For the purpose of universal use for a myriad of photographing devices for diversifying light-shielding hoods and close-up frames, the allowable range of the fixed position of the photographing device is defined as up / down, left / right,
It has a very small number of parts and a compact mechanism that allows it to have a large amount in the front and rear three-dimensional directions, and it has been made structurally robust.

FIG. 1 is a perspective view illustrating the concept of the entire mechanism. Among them, (1) is a pedestal main part, and a vertical groove (4) provided therein and a horizontal groove (5) provided in a camera mounting part (2) are connected by a pedestal fixing screw (7). . By loosening the pedestal fixing screw, the positional relationship between the pedestal backbone and the camera mounting portion can be freely set up, down, left and right within the range of the length of each groove. In this figure, there is only one vertical groove. However, by providing two vertical grooves on the left and right and replacing the pedestal fixing screw, the right and left adjustment range can be further expanded.

The front and rear grooves (6) are provided in the camera mounting portion,
The mobile camera fixing screw (8) can be slid back and forth. With this front and rear adjustment function and the up, down, left and right adjustment functions in the preceding paragraph,
The optical axis position of the taking lens and the tripod hole for fixing the camera can be adjusted in any three-dimensional relationship.
The front and rear grooves provided in the camera mounting part may be one, but by providing two or more right and left grooves as shown in this figure,
You can further expand the left and right adjustment range.

As shown in FIGS. 1 and 2, the camera mounting portion (2) has an L-shape. The camera mounting part is turned 180 degrees around the pedestal fixing screw (7) and moved to the position (2b) in FIG. 2 to move the camera fixing screw (8).
Was moved to the back side to enable insertion (8b). This makes it possible to further increase the adjustable distance in the vertical direction by twice the distance from the pedestal fixing screw to the camera mounting surface.

FIG. 3 is a perspective view in which each component is separated in order to explain the structure and function of the parallel holding bracket. (9)
Is a parallel holding metal fitting connected in a cross shape, and is designed to fit in the space of both grooves where the vertical groove and the horizontal groove intersect. A hole for passing the pedestal fixing screw is drilled at the center of the parallel holding bracket, and a bolt (7a) is passed through the hole and a nut (7) is inserted.
Tighten according to c) and specify. The pedestal base and the camera mounting part are always defined at an angle of 90 degrees by this parallel holding metal, so that the user can use the frame without being aware of the parallelism of the frame and the camera.

[0012]

The present invention is embodied in the form described above and has the following effects.

The present invention has a very compact mechanism, but has a large allowable range of up / down, left / right, front / rear adjustment, and can shoot all kinds and specifications of digital cameras, video cameras, 35 mm cameras, medium format cameras, instant cameras, etc. Since the device can be used for general purposes, it contributes to the socio-economic and effective use of resources.

Since the structure of the present invention is extremely simple and has a small number of parts, it is lightweight and robust, and the manufacturing cost can be reduced. For this reason, even if a large and expensive device such as an electronic image recording device for electrophoresis specimen is not introduced, it is possible to easily take a picture using a digital camera on hand, thereby giving many researchers convenience. Can be
For ordinary personal computer users, if they are connected to a handheld digital camera that is rapidly spreading today, it can be used as a document copying device or an image reading device.

According to the present invention, a parallel holding mechanism is employed, and the user can use the frame without being conscious of the parallelism between the frame and the camera.

[Brief description of the drawings]

FIG. 1 is a perspective view illustrating the concept of the entire mechanism.

FIG. 2 is a side view of the present invention, illustrating a function of expanding a vertical adjustment allowable range by an L-shaped camera mounting portion.

FIG. 3 is a perspective view in which each component is separated in order to explain the structure and function of a parallel holding bracket.

FIG. 4 is a photograph of a product of a typical close-up frame in the related art, “Polaroid CU-5 Close-up Camera 1/3 × Framing Kit” manufactured by Polaroid.

FIG. 5 is a typical light-shielding hood product in the prior art, “C” manufactured by Asanuma Camera Mechanical Laboratory Co., Ltd.
It is a photograph of "RT camera M-105".

FIG. 6 shows a screen shot shooter manufactured by NPC of the United States, which is a product in which the camera mounting position can be adjusted according to the prior art.
It is a photograph of.

[Explanation of symbols]

1, base base 2, camera mounting part 2b, camera mounting part / 180 ° rotation position 3, light shielding hood (close-up frame) 4, vertical groove 5, horizontal groove 6, front and rear groove 7, pedestal fixing screw 7a, pedestal fixing screw 7b, pedestal fixing screw nut 8, mobile camera fixing screw 8b, mobile camera fixing screw, 180 ° rotation position 9, parallel holding bracket 10, photographing window 11, hand grip 21, Polaroid CU-5, camera body 23, Polaroid CU-5 1 / 3x framing kit 31, CRT camera M-105, camera body 33, light shielding hood for CRT camera M-105 42, screen shooter camera mounting position adjustment mechanism 43, screen shooter Shading hood

Claims (3)

[Claims] 1. A method for fixing a photographing device such as a digital camera in a close-up frame such as a light-shielding hood made of a metal rod or a resin plate for simply defining a photographing distance and a photographing range in close-up photographing. The vertical groove (4) provided in the base backbone (1) and the camera mounting part ( A pedestal fixing screw (7) is arranged between the horizontal groove (5) provided in (2) and the two grooves are connected in a cross shape, and a front and rear groove (6) is provided in the camera mounting part (2) to move. A close-up photographing frame with a three-dimensional pedestal, wherein the camera can be mounted using a camera fixing screw (8). 2. A mechanism according to claim 1, wherein the camera mounting portion is L-shaped and the movable camera fixing screw is provided.
Can be inserted from either top or bottom, and by rotating the mounting state 180 degrees up and down, the adjustable distance in the vertical direction can be increased by twice the distance from the pedestal fixing screw (7) to the camera mounting surface. A pedestal for a close-up frame with a three-dimensional pedestal, characterized in that: 3. A mechanism for arranging a pedestal fixing screw (7) between a vertical groove (4) and a horizontal groove (5) in a close-up frame such as a light-shielding hood according to claim 1, and connecting both grooves in a cross shape. In the above, the connection angle of both grooves is always set to 9 by using a parallel holding metal fitting (9) joined in a cross shape in a space where both grooves intersect.
A parallel holding mechanism for a close-up frame with a three-dimensional pedestal, which can be held at 0 degrees.