JPH10301162A - Camera - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a camera which is easily used and handled and which is constituted so that preparation for a photographing action is quickly executed and the opening action of a lens cover can be surely executed by providing the lens cover axially fixed to a main body with a picture display means displaying an object image. SOLUTION: This camera is provided with a photographing lens 21a imprinting the object image on a silver-salt film, a CCD 24 picking up the object image through a finder optical system 25 integrated in the main body 2, the lens cover 3 turnably axially fixed to the main body 2 and set for opening and closing the aperture part 22 of the lens 21a by being turned and an LCD 31 arranged at the front surface of the cover 3 and set for displaying the object image based on a signal outputted from the CCD 24 Thus, a photographing range and the object image is confirmed through the LCD 31 of the cover 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a camera in which image display means for displaying a subject image or the like is provided on a lens cover.

[0002]

2. Description of the Related Art Generally, in a camera, a lens cap attached to an opening of a taking lens and a lens barrier for opening and closing the opening of the taking lens are used to protect a portion exposed to the outside of the taking lens. I have. The lens cap is a lid member that is separate from the camera body and has almost the same shape as the opening of the taking lens, and is attached to the opening of the taking lens when the camera is not used,
Removed when used. The lens barrier is a plate member that is slidable along the front surface (front surface) of the camera body, is attached to the camera body, and opens and closes the opening of the photographing lens by sliding. is there.

[0003]

However, the above-described conventional photographic lens protection technique has the following problems. First, in the protection of a photographic lens by a lens cap, photographing is performed with the lens cap attached to the opening of the photographic lens, and a situation occurs in which a desired subject image is not photographed. Also, the lens cap is separate from the camera body and may be lost because it is removed each time the camera is used. Therefore, it is necessary to pay close attention to handling during use.

On the other hand, in the protection of the photographing lens by the lens barrier, the lens is not lost like a lens cap, but the mounting mechanism for sliding the lens barrier with respect to the main body becomes complicated. Further, if the sliding property of the lens barrier is poor, the lens barrier may be caught in the middle of opening and closing, and in such a case, it becomes impossible to take a picture. Therefore, in order to solve such a technical problem in protecting the conventional photographing lens, development of a new technology is eagerly desired.

Accordingly, the present invention has been made to solve the above problems, and is easy to use and use, can quickly prepare for photographing, and reliably opens the lens cover. It is intended to provide a camera that can perform the operation.

[0006]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a photographing lens for projecting a subject image on a silver halide film, and an image pickup device built in a main body for photographing the subject image through a finder optical system. Means, a lens cover rotatably mounted on the main body and opening and closing the opening of the taking lens by the rotation thereof, and an image provided on the surface of the lens cover and displaying a subject image based on an output signal of the imaging means. And display means.

According to the invention, the photographing range and the subject image can be confirmed using the lens cover. Further, by mounting the lens cover on the main body, the opening operation of the photographing lens and the direction adjusting operation of the image display means can be performed by a series of operations. Therefore, use and handling are simple. Further, since the taking lens is opened without the lens cover sliding with respect to the main body, the opening operation of the lens cover is assured.

Further, the present invention is characterized in that a main power switch which is switched in conjunction with the opening / closing operation of the lens cover is provided.

According to the invention, since the main power is turned on in conjunction with the opening operation of the lens cover which is always performed at the time of photographing, it is possible to omit a switch operation for turning on the main power. For this reason, the photographing preparation can be performed quickly, and the chance of taking a photo can be prevented from being missed.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Various embodiments of the present invention will be described below with reference to the accompanying drawings. In the drawings, the same elements are denoted by the same reference numerals, and the description is omitted.

(Embodiment 1) FIG. 1 is an external perspective view of a camera. In FIG. 1, a camera 1 according to the present embodiment
Is for forming an image of a subject on a silver halide film by the taking lens 21a, and photographing the subject by exposing the silver halide film. Inside the main body 2, a patrone storage chamber and a film winding chamber (not shown) are provided, and a lens barrel 21 is disposed between the patrone storage chamber and the film winding chamber. The lens barrel 21 has a plurality of photographing lenses 21a built therein, and a light image of a subject enters through an opening 22 of the photographing lens 21a on the distal end surface thereof and forms an image on a silver halide film through the photographing lens 21a. It is. Here, the opening 22 of the photographing lens 21a refers to a portion where the photographing lens 21a is exposed to the outside for incidence of a subject image.

The lens barrel 21 can be extended and retracted with respect to the main body 2, and a desired telephoto photographing can be performed by appropriately extending the lens barrel 21 forward of the main body 2. In FIG. 1, the lens barrel 21 is extended from the front surface of the main body 2. Further, a shutter button 23 is provided on the upper surface of the main body 2, and film exposure is performed by a release operation of the shutter button 23.

FIG. 2 is a schematic diagram of the internal structure of the camera 1. In FIG. 2, the main body 2 of the camera 1 has a built-in CCD 24 as an image pickup means. The CCD 24 photoelectrically converts a subject image incident through the finder optical system 25 into an electric signal. The finder optical system 25 guides the subject image to the CCD 24. For example, as shown in FIG. 2, an objective lens 25a, a moving lens 25b, a moving lens 25c, a prism 25d, a field lens 25e, a mirror 25f, a relay lens 2
5 g are sequentially arranged along the optical axis. Note that the imaging means is not limited to the CCD 24 as long as it can photoelectrically convert the subject image, and may use another type such as a MOS image sensor.

As shown in FIG. 2, a lens cover 3 is attached to the main body 2. The lens cover 3 is provided with the opening 2 of the photographing lens 21a when the lens barrel 22 is housed.
2 for protecting the main body 2, and is rotatably mounted on the main body 2. For example, the lens cover 3 is
The shaft 26 provided at the lower part of the main body 2 is rotatable with respect to the main body 2. This lens cover 3 is attached to the body 2
, The opening 22 of the photographing lens 21a can be opened and closed. Also, this lens cover 3
According to the rotatable mounting structure, the structure is simple and therefore the manufacturing is easy. Also, as compared with the sliding type, a failure at the time of using the camera, for example, the lens cover 3 does not open and no photographing is possible. And the like.

Further, as shown in FIG.
An LCD 31 as an image display means is installed on the surface of the LCD. The LCD 31 displays a subject image as an image, is electrically connected to the CCD 24 via a predetermined circuit, and operates based on an output signal of the CCD 24. That is, based on the output signal of the CCD 24, LC
The structure is such that a subject image is displayed on D31. The LCD 31 is installed at a position facing the back side of the camera 1 when the lens cover 3 is rotated and opened. Therefore, when the photographer uses the camera 1, the LCD 31 faces the photographer at the same time as opening the lens cover 3, so that the photographer can check the subject image. Further, the angle of the LCD 31 can be adjusted continuously with the opening operation of the lens cover, and the operation for photographing preparation can be performed at once. The image display means is not limited to the LCD 31, but may be any other image display means as long as the image can be displayed based on the output signal of the CCD 24 and is flat.

In the camera 1, it is desirable to provide a switch 11 that switches in response to the opening and closing operation of the lens cover 3 as shown in FIG. The switch 11
This is for switching the main power supply of the camera 1 on and off. For example, when the switch 11 is turned on and off, power supply to components that perform basic operations of the camera 1 such as release operation and film feeding is started or stopped. Will be. The switch 11 is, for example, a push type switch which is disposed on the front surface of the main body 2 and has a switch knob 11a protruding forward from the front surface of the main body 2. When the switch 11 is provided, when the lens cover 3 is in a closed state (a state as shown in FIG. 3), the switch knob 11a is pushed into the main body 2 by being pushed by the lens cover 3, and
The switch 11 is switched, and the main power of the camera 1 is turned off. When the lens cover 3 is open (a state as shown in FIG. 2), the switch knob 11a is released, the switch 11 is switched, and the main power supply of the camera 1 is turned on. In FIGS. 1 and 2, the switch 11 is installed on the main body 2. However, if the switch 11 is configured to be switched in conjunction with opening and closing of the lens cover 3, the switch 11 is installed on the lens cover 3 side. You may.

Next, a method of using the camera 1 and its operation will be described.

As shown in FIG. 3, when the lens cover 3 is closed, the lens cover 3 covers the opening 22 of the lens barrel 21, and dust and dirt adhere to the opening 22. Has been prevented.

When taking a picture using the camera 1 in this state, first, the lens cover 3 is rotated about the shaft 26 to be moved below the main body 2, and the lens cover 3 is opened. . At this time, with the rotation of the lens cover 3, the knob 11a of the switch 11 is released, the switch 11 is switched, and the main power of the camera 1 is turned on. By turning on the main power, the CCD 24, L
The CD 31 and other peripheral parts start to operate. That is, in FIG. 2, the subject image taken into the main body 2 through the finder optical system 25 is photoelectrically converted by the CCD 24 and output as an electrical signal from the CCD 24. The output signal is transmitted to the LCD 31 through the wiring 12 that communicates the main body 2 and the lens cover 3, and the subject image is displayed on the LCD 31 in response to the input of the signal. As described above, when the camera 1 is to be used, the main power of the camera 1 is automatically turned on at the same time as the operation of removing the lens cover 3 from the front of the lens barrel 21, so that the power is turned on separately. No need.

Further, the extension position of the lens barrel 21 (the position at the wide end) where the camera 1 is capable of taking the widest angle.
Is located at a position forward of the front surface of the main body 2, the power is turned on by opening the lens cover 3 and the lens barrel 21 is turned on.
Is automatically fed to the position of the wide end. In this case, if the operation of opening the lens cover 3 is performed, the camera 1 is ready for shooting.

Then, as shown in FIG. 1, the opened lens cover 3 can be used as means for confirming the photographing range. That is, an LCD is provided on the surface of the lens cover 3.
The LCD 31 turns to the photographer side (the rear side of the camera 1) by opening the lens cover 3, so that the photographer can confirm the photographing range by viewing the image display on the LCD 31. In addition, it is possible to determine the composition as appropriate while checking the image of the subject, and perform photographing.

The LCD 31 is set on the lens cover 3 so that the lens cover 3 can be opened when the lens cover 3 is opened.
The LCD 31 can be oriented in a desired direction by adjusting the angle of the lens cover 3. Therefore, the operation of adjusting the angle of the LCD 31 can be performed continuously with the operation of opening the lens cover 3,
Preparation for photographing the camera 1 can be easily performed. In addition, since the operation for starting the photographing is only the opening operation of the lens cover 3, the camera 1 can be brought into a state where the photographing can be quickly performed, and it is possible to avoid missing a photo opportunity.

Then, as shown in FIG.
When the use of the camera 1 is finished when the camera is open, the lens barrel 21 is retracted into the main body 2 by operating a zoom lever or the like, and then the lens cover 3 is turned to rotate the lens barrel 21. Is rotated to a position where the opening 22 is covered. When the lens cover 3 moves to the front of the main body 2 as shown in FIG. 3, the switch 11 is pressed by the lens cover 3 and the main power is turned off. That is, it is not necessary to operate the main power switch separately from the closing operation of the lens cover 3, and the use of the camera 1 can be easily terminated. Then, as shown in FIG. 3, when the lens cover 3 is closed, the main power is not supplied to the predetermined parts, so that the operation of the CCD 24 is stopped and the LCD 31 is stopped.
Is turned off, and a button operation of the shutter button 23 or the like is not accepted.

As described above, according to the camera of the present embodiment, the photographing range and the subject image can be confirmed using the lens cover 3. In addition, since the lens cover 3 is pivotally mounted on the main body, the opening operation of the photographing lens 21a and the operation of adjusting the direction of the LCD 31 can be performed in a series of operations, thereby simplifying use and handling. In addition, since the lens cover 3 can be opened without sliding with respect to the main body 2, the opening operation of the lens cover 3 is ensured. Further, since the main power is turned on in conjunction with the opening operation of the lens cover 3 which is always performed at the time of shooting, a switch operation for turning on the main power can be omitted, shooting preparation can be performed quickly, and a photo opportunity is missed. Can be prevented.

(Embodiment 2) Camera 1 according to Embodiment 1
In the above, the lens cover 3 is opened by rotating below the main body 2, but the opening direction of the lens cover 3 may be other directions. That is, the camera 1a according to the second embodiment
Indicates that the rotation direction in the opening operation of the lens cover 3 is not downward. For example, as shown in FIG. 4, the camera 1a has a structure in which a lens cover 3 is pivotally mounted on an upper part of a main body 2 and is rotatable above the main body 2. Therefore, a state in which the lens cover 3 is located on the front surface of the main body 2,
That is, in the closed state, by turning the lens cover 3 upward, the opening 22 of the photographing lens 21a is opened. Note that the rotation direction of the lens cover 3 in the camera 1a is not limited to the upward direction.
It may be lateral or the like.

In such a camera 1a, the same operation and effect as those of the camera 1 according to the first embodiment can be obtained.

(Embodiment 3) In the cameras 1 and 1a according to Embodiments 1 and 2, when the lens cover 3 is closed, the LCD 31 as the image display means is exposed to the outside. When the cover 3 is closed, the LCD 31
Of course, even if it is not exposed.

FIG. 5 shows a camera 1b according to the present embodiment. FIG. 5A shows the camera 1b with the lens cover 3 closed.
FIG. 5B is an explanatory view of the camera 1b with the lens cover 3 opened. In FIG. 5A, a horizontally oriented shaft 26a is provided at an upper part of the main body 2 of the camera 1b, and a horizontally oriented shaft 26b is provided at an upper part of the lens cover 3. Further, the camera 1b is provided with a connecting member 4 rotatably mounted on the parallel shafts 26a and 26b and connecting the main body 2 and the lens cover 3. For this reason, the lens cover 3 is rotatable with respect to the main body 2 via the connecting member 4.

As shown in FIG. 5A, when the lens cover 3 is in the closed state, the LCD 31 is disposed so as to face the main body 2. From the closed state of the lens cover 3, the camera 1b is opened by rotating the lens cover 3 upward, passing above the main body 2 and moving to the rear side as shown in FIG. State.

FIG. 6 shows a camera 1c according to the present embodiment. FIG. 6A shows the camera 1c with the lens cover 3 closed.
FIG. 6B is an explanatory view of the camera 1c with the lens cover 3 opened. In FIG. 6A, a horizontally oriented shaft 26c is provided at an intermediate position on the back side of the main body 2 of the camera 1c, and a horizontally oriented shaft 26b is provided above the lens cover 3. Further, the camera 1c is provided with a connecting member 4c rotatably mounted on the parallel shafts 26b and 26c to connect the main body 2 and the lens cover 3. For this reason, the lens cover 3 is freely rotatable with respect to the main body 2 via the connecting member 4c.

As shown in FIG. 5A, when the lens cover 3 is closed, the LCD 31 is arranged so as to face the main body 2. From the closed state of the lens cover 3, as shown in FIG. 5B, the camera 1 c can be opened by moving the lens cover 3 downward and positioning it below the main body 2.

According to such cameras 1b and 1c,
In addition to the above-described functions and effects of the cameras 1 and 1a, the LCD 31 is not exposed to the outside when the lens cover 3 is closed, so that the LCD 31 that is easily damaged by collision or the like can be reliably protected. Even with such a structure, when the lens cover 3 is in the open state, the LCD 31 can face the rear side of the camera, and the photographer can easily confirm the shooting range and the subject image on the LCD 31.

(Embodiment 4) In the cameras 1, 1a to 1c according to the first to third embodiments, the lens barrel 21 accommodating the photographing lens 21a can be extended from the main body 2. May not perform the extension and retraction of the lens barrel 21, and the same operation and effect as those of the first embodiment can be obtained in such a case.

The cameras 1, 1a to 1c described above are
The present invention is applicable to any camera that accommodates a 35 mm film and shoots, and a camera that accommodates a new standard cartridge film (a film whose usage state is indicated on a cartridge and a magnetic layer is provided on the film). Therefore, any of the cameras can effectively obtain the above-described effects.

[0035]

As described above, according to the present invention, the following effects can be obtained.

Using the lens cover, the photographing range and the subject image can be confirmed.

Further, since the lens cover is attached to the main body, the opening operation of the photographing lens and the operation of adjusting the direction of the image display means can be performed by a series of operations. For this reason,
Use and handling are simple.

Further, since the lens cover can be opened without sliding with respect to the main body, the opening operation of the lens cover is assured.

Further, the main power is turned on in conjunction with the opening operation of the lens cover, which is always performed during photographing, and the supply of the main power is stopped in conjunction with the closing operation of the lens cover. A switch operation for stopping power supply can be omitted. Therefore, the photographing preparation can be performed quickly, and it is possible to prevent a shutter chance from being missed.

[Brief description of the drawings]

FIG. 1 is an overall perspective view of a camera.

FIG. 2 is an explanatory diagram of an internal structure of the camera.

FIG. 3 is an overall perspective view of the camera.

FIG. 4 is an explanatory diagram of a camera according to a second embodiment.

FIG. 5 is an explanatory diagram of a camera according to a third embodiment.

FIG. 6 is an explanatory diagram of a camera according to a third embodiment.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Camera, 11 ... Switch, 2 ... Body, 21a ... Photographing lens, 24 ... CCD, 25 ... Finder optical system, 3 ...
Lens cover, 31 ... LCD

 ────────────────────────────────────────────────── ─── Continuing from the front page (72) Inventor Yasuhiro Nishitani 3--11-46 Izumi, Asaka-shi, Saitama Prefecture Inside Fujisha Shin Film Co., Ltd.

Claims (2)

[Claims] A photographing lens for projecting a subject image on a silver halide film; an imaging means built in the main body for photographing the subject image through a finder optical system; A camera comprising: a lens cover configured to open and close an opening of the photographing lens by movement; and an image display unit provided on a surface of the lens cover and configured to display the subject image based on an output signal of the imaging unit. 2. The camera according to claim 1, further comprising a main power switch that switches in response to opening and closing operations of the lens cover.