JP7021729B1 - Attachments for smartphones for film cameras - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily record and save a film camera on an electronic medium by using a camera function of a smartphone. SOLUTION: A camera attachment (31) attached to a back cover of a camera and a smartphone attachment (32) for holding a smartphone connected to the camera attachment (31) are provided, and the camera attachment (31) captures an image taken through a camera lens. Equipped with a projection screen (312) to project, the smartphone attachment (32) is equipped with a correction lens (322) for focusing on the image projected on the projection screen and taking close-up shots with a smartphone camera, and the camera lens and projection. An attachment for a smartphone for film cameras, which is characterized by aligning the screen, correction lens, and the optical axis (5) of the image taken by the camera, and focusing on the image pickup medium of the smartphone so that the film camera can be digitized and stored. [Selection diagram] Fig. 1

Description

The present invention relates to an attachment for capturing an image taken by a film camera into a smartphone.

Conventionally, a film camera projects and stores an image by shining light on a film arranged in a light receiving window of an optical axis from a camera lens. Nothing was digitized and stored on electronic media.

Japanese Unexamined Patent Publication No. 2013-5428 U.S. Patent Application Publication No. 2017/01849447

Conventionally, a film camera cannot be easily recorded and stored on an electronic medium by using the camera function of a smartphone.

A camera attachment (31) attached to the back cover of the camera and a smartphone attachment (32) for holding a smartphone connected to the camera attachment (31) are provided. The camera attachment (31) is a projection screen that projects a photographed image through a camera lens. Equipped with (312), the smartphone attachment (32) is equipped with a correction lens (322) for focusing on the image projected on the projection screen and taking close-up shots with a smartphone camera, and includes a camera lens, a projection screen, and a correction lens. An attachment for a smartphone for a film camera, which is characterized in that a film camera can be digitized and stored by aligning the optical axis (5) of the image taken by the camera and focusing on the image pickup medium of the smartphone.

The feature is that the camera attachment (31) and the smartphone attachment (32) can be separated and replaced with a camera attachment (31) for another film camera and a smartphone attachment (32) for another smartphone, respectively. Attachment for smartphones for film cameras.

The film camera (2), the attachment (3) of the smartphone for the film camera, and the smartphone (4) attached to the attachment are provided, and when the shutter of the film camera (2) is opened, the projection screen (312) is displayed. A film characterized by being able to detect the projected light by the image sensor of the smartphone (42), release the shutter of the camera of the smartphone (4), combine the image taken by the film camera with the image sensor, and save it. Smartphone attachment system for cameras.

According to the present invention, the film camera can be easily recorded and stored in an electronic medium by using the camera function of the smartphone.

In addition, the attachment consists of a camera attachment and a smartphone attachment, which can be attached to and detached from a camera attachment compatible with a film camera and a smartphone attachment compatible with a smartphone, making it possible to support a wide variety of film cameras and smartphones.

The minimum purpose is to meet modern demands such as photo sharing via SNS etc. by applying the camera function of smartphones while keeping the functions of many film cameras called famous machines and camera lenses called famous balls. It is possible to reduce the cost by configuring it with the number of parts.

Smartphones are equipped with functions for saving and erasing digital shooting data, selecting color or monochrome shooting during digital shooting, adjusting white balance, setting shooting conditions for imaging data, etc. in the smartphone itself and smartphone applications. Therefore, by using the attachment of the present invention, it is possible to omit the CCD sensor, image sensor called CMOS sensor, battery, input device for setting shooting conditions, power switch, and recording medium, which are usually required for digital shooting. It makes it possible to reduce the cost.

Configuration of smartphone attachment system for film cameras Exploded view of smartphone attachment system for film cameras Assembly configuration of smartphone attachment for film camera

FIG. 1 shows a configuration of a smartphone attachment system including a film camera (2), an attachment (3), and a smartphone (4).
The attachment (3) includes a camera attachment (31) to which the back cover of the film camera is removed and attached to the removed back cover portion, and a smartphone attachment (32) for holding a smartphone connected to the camera attachment (31). The camera attachment (31) comprises a projection screen (312) that projects light through the lens of a film camera. The smartphone attachment (32) is provided with a correction lens (322) for closely focusing on the image projected on the projection screen and taking a clear image of the whole image with the smartphone camera. By focusing the image pickup of the camera on the image sensor (imaging medium) of the smartphone as the optical axis (5) of the camera lens, the projection screen, and the correction lens, the film camera can be digitized and stored in an electronic medium.

The projection screen (312) is arranged in the camera attachment (31) so as to cover the light receiving window (23) at the position of the film of the film camera (2), and projects the light entering through the camera lens.

The correction lens (322) is as close as possible to the entire image projected on the projection screen (312), and the smartphone attachment (42) is focused on the camera (42) portion built in the smartphone (4) main body (41). Built in 32).

FIG. 2 is an exploded view of the smartphone attachment system, in which the lens (22) of the film camera (2), the projection screen (312) of the camera attachment (31), the correction lens (322) of the smartphone attachment (32), and the like. The camera (42) of the smartphone (4) is arranged on the optical axis (5) in a straight line.

The smartphone is equipped with an application consisting of a program in which the image sensor of the smartphone camera receives light from the film camera lens, detects the light projected on the projection screen, and releases the shutter of the smartphone camera.

Since the shutter of the film camera is closed when the smartphone application is running, the image sensor of the smartphone camera recognizes black and the shutter of the smartphone does not operate. When the film camera shutter is released, the shutter curtain of the film camera opens and is projected on the projection screen. Then, when the image sensor of the smartphone camera placed on the optical axis detects light, it reads from the electric signal that the shutter curtain of the film camera is open while the light enters, and the shutter of the smartphone camera also opens and the film. When the camera shutter closes, the projection screen turns black and the image sensor of the smartphone camera detects black, indicating that the shutter curtain of the film camera has closed. When the shutter of the smartphone camera is released, for example, the image taken by the film camera is captured in the image sensor within a certain period of time after the shutter is released (equivalent to releasing the shutter). The electronic data captured in the image sensor can be stored in an electronic medium such as a recording memory.

FIG. 3 shows the configuration of the attachment, and the camera attachment (31) and the smartphone attachment (32) can be separated and exchanged. For example, the convex portion (323) of the main body (321) of the smartphone attachment can be easily attached / detached and replaced by sliding the convex portion (323) of the main body (321) of the smartphone attachment into the concave portion (313) of the main body (311) of the camera attachment. Further, the concave portion and the convex portion may be reversed. A lock function may be added to prevent the attachment from moving during operation. Further, this attachment / detachment / replacement method is taken as an example. The attachment can be attached and detached, making it possible to support a wide variety of film cameras and smartphones.

The replacement of the camera back cover and the camera attachment (31) in FIG. 3 will be described as an example. Many models of film cameras have a tripod screw hole (24) on the bottom of the camera. Using the tripod screw hole (24), the mounting screw hole (314) integrated with the bottom of the camera attachment and the tripod screw hole (24) on the bottom of the camera are aligned and attached, and fixed with screws. Besides that, regarding the replacement of the camera back cover and the camera attachment (31), many models of film cameras have an open / close hinge type, so it can be easily replaced by pulling out the core wire of the hinge.

1 Smartphone attachment system 2 Film camera 21 Main body 22 Lens 23 Light receiving window 24 Screw hole for tripod 25 Opening and closing hinge 3 Attachment 31 Camera attachment 311 Main body 312 Projection screen 313 Recessed 314 Mounting screw hole 32 Smartphone attachment 321 Main body 322 Correction lens 4 Smartphone 41 Main unit 42 Camera 5 Optical axis

Claims (3)

A film camera smartphone attachment (3) that is attached to the back cover of a film camera with the back cover removed.
The attachment (3) has a projection screen (312) that projects a captured image through the camera lens of the film camera.
The attachment (3) is attached to the back cover portion so that the projection screen (312) is located at the position of the film of the film camera.
The attachment (3) is an attachment for a smartphone for a film camera that holds the smartphone at a position where the smartphone can shoot the captured image projected on the projection screen (312). The attachment (3) is divided into a camera attachment (31) and a smartphone attachment (32), which are detachably connected to each other.
The camera attachment (31) has the projection screen (312) and is attached to the back cover portion so that the projection screen (312) is located at the position of the film of the film camera.
The attachment of a smartphone for a film camera according to claim 1, wherein the smartphone attachment (32) holds the smartphone at a position where the smartphone can shoot the captured image projected on the projection screen (312). Film camera (2) and
The attachment (3) of the smartphone for the film camera according to claim 1 or 2.
A smartphone (4) attached to the attachment (3) is provided.
The smartphone (4) has an application and has an application.
The application is detected by the image sensor when the image sensor of the smartphone camera (42) detects the light projected on the projection screen (312) by opening the shutter of the film camera (2). A smartphone attachment system for a film camera that operates the smartphone (4) so as to store images taken by the film camera.

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