JPS6159974A - Electronic camera and lens barrel - Google Patents

Abstract

PURPOSE:To lighten the burden imposed on an operator with respect to the weight of a camera and to improve the operability of a release button by mounting a monitor means for monitoring the output of an image pickup element on a lens barrel. CONSTITUTION:A shaft 11 for comprising a fitting part provided on a lens tube 5 is inserted with pressure into a hole (not shown in the figure) drilled at the bottom of an electronic view finer 10. A plug 12 is connected to said finder 10 through a cord 13 and inserted into a socket 14 provided on the lens barrel. The socket 14 is connected to the camera main body 1 through a connecting cord 8a. Moreover, a shaft 15 used for fitting the view finder and a socket 16 where a plug 12 is inserted are provided on the camera main body 1. Thus only the lens tube 5 is held with hands while, for instance, the camera main body 1 is placed on the ground. Then while the lens tube 5 is freely moved, the setting of a composition and focusing can be carried out quickly at hand.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to an electronic camera and a lens barrel in which an electronic viewfinder can be attached to the lens barrel.

[Technical background]

In recent years, light from a subject that enters through a lens barrel is
CD (charge-coupled device)
Electronic cameras are known in which an image sensor such as e) converts the signal into an electrical signal and magnetically records the electrical signal.

The applicant has improved this electronic camera by interposing a transmission means for transmitting signals between the camera body and the lens barrel,
Furthermore, we considered a lens barrel equipped with a release button.

FIG. 1 is a diagram showing an example of the electronic camera.

In the figure, 1 is an electronic camera body, 2 is a lens mounting portion provided on the camera body, and this embodiment employs a bayonet system. Reference numeral 3 denotes an electrical connection terminal attached to the lens attachment part 2, 4 a release button, and 5 an interchangeable lens barrel.A main attachment part 6 as a mounting means is attached to the rear end of this lens barrel. ing. 7 is a photographing lens provided in this interchangeable lens barrel 5; 8 is a transmission means;
It consists of a connection cord 8a made of a flexible material, and a first holder 8b and a second holder 80 provided at both ends of the connection cord 8a.

The first holder 8b is provided with a lens attachment portion 8b1, and this lens attachment portion 8b1 is adapted to fit into the main attachment portion 6 of the interchangeable lens barrel 5. Further, the electrical connection terminal 8b2 attached to the lens attachment part 8b1 is the electrical connection terminal attached to the main attachment part 6 (
(not shown). The second holder 8C is provided with a sub-attachment portion 8C1, and the sub-attachment portion 8C1 is adapted to fit into the lens attachment portion 2. Further, an electrical connection terminal (not shown) attached to this sub-attachment portion 8C1 is connected to the electrical connection terminal 3. An electrical conductor such as an electric wire is provided inside the connection hood 8a to connect the electrical connection terminal 8b2 and an electrical connection terminal (not shown) attached to the sub-attachment portion 8C1. 9 is a release button provided on the interchangeable lens barrel.

It should be noted that an image pickup device (not shown) such as a CCD is arranged at the image forming position of the photographic lens 7.

Further, the main mounting portion 6 of the lens barrel 5 is directly attachable to and detachable from the lens mounting portion 2 of the camera body 1.

The electronic camera that has been subjected to 'DI+112' as described above connects the interchangeable lens barrel 5 to the camera body 1 via the transmission means 8, and then connects the interchangeable lens barrel 5 to the camera body 1 while leaving the camera body 1 on the ground, for example. It is possible to take pictures by holding only the barrel 5 in the hand, moving it freely, and operating the release button.

However, since the electronic viewfinder is provided only on the camera body, if the photographer is too far away from the camera body 1, he or she cannot see the subject through the electronic viewfinder, resulting in poor operability.

〔the purpose〕

This invention was made in view of the above problems, and aims to reduce the burden on the operator due to the weight of the camera, improve the operability of the release button, and improve the operability of the electronic viewfinder. The purpose is

〔Example〕

FIG. 2 is a diagram showing an embodiment of the present invention.

Note that the same or equivalent parts as in the conventional example are given the same reference numerals, and the explanation thereof will be omitted. In the figure, reference numeral 10 denotes an electronic viewfinder as a monitoring means, and a shaft 11 forming a mounting portion provided on the lens barrel 5 is press-fitted into a hole (not shown) provided at the bottom of the finder 10. It looks like this.

Reference numeral 12 denotes a plug serving as a connection terminal that is connected to the electronic viewfinder 10 via a hood 13 having an electric conductor such as an electric wire inside, and is inserted into a socket 14 provided in the lens barrel 5. It looks like this. The socket 14 is electrically connected to the camera body 1 via the connection hood 8a. 15 is a shaft provided on the camera body 1 for attaching the viewfinder;
16 is a socket provided on the camera body 1 into which the plug 12 is inserted.

Reference numeral 17 denotes an image pickup device drive circuit which is activated by operating the release button 4.9.

In the camera configured as described above, the camera body 1 is placed on the ground, for example, and only the lens barrel 5 is held in the hand, and the electronic viewfinder 10 is quickly moved at hand while freely moving the lens barrel 5. You can set the composition and adjust the focus using the shutter release button 9.
You can also operate the

〔effect〕

As described above, the present invention has the advantage of reducing the operator's burden on the weight of the camera, improving the operability of the release button, and improving the operability of the electronic viewfinder.

[Brief explanation of drawings]

FIG. 1 is a perspective view for explaining the conventional method and the present invention;
FIG. 2 is a perspective view of essential parts showing an embodiment of the present invention. 5......Interchangeable lens barrel 10...Electronic viewfinder 11 as a monitoring means...Shaft 12...Plug

Claims (2)

[Claims] (1) Equipped with an image sensor that converts subject light into electrical signals,
An electronic device comprising: an interchangeable lens barrel that can be attached to and detached from a main body; and a mounting section that allows a monitor means for monitoring the output state of the image sensor to be attached to the interchangeable lens barrel. camera. (2) A lens that includes an image sensor that converts subject light into an electrical signal, a mounting means that is removably attached to the main body, and a removable monitor means that monitors the output state of the image sensor. lens barrel.