JPH07209740A - Camera and binoculars - Google Patents

Abstract

PURPOSE:To provide a camera functioning as binoculars if necessary without impairing portability as a camera. CONSTITUTION:This camera and binoculars are constituted of a camera main body and a binoculars adapter 100 interlocked by the same constitution as the camera main body, and having a photographing lens and a finder optical system whose optical axes are parallel; and the camera main body is constituted of the photographing lens and a photographing unit using small-sized film smaller than 35mm film. It functions as the binoculars by connecting the camera main body and the adapter 100 in a state where the photographing unit intervenes midway between them, and it functions as the camera in the case of the camera main body alone.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a combination of a camera and binoculars.

[0002]

2. Description of the Related Art Conventionally, various proposals have been made in which a camera and binoculars are combined to have both an observation function and a recording function. For example, JP-A-54-5451
Japanese Patent Laid-Open Publication No. 58-40539, a small camera attached to the rear of the binoculars, and one having a viewfinder optical system of the camera also used as the binoculars, as described in Japanese Patent Laid-Open No. 58-40539. A known technique is to provide an image pickup device such as a CCD in each of two optical systems in binoculars as described in JP-A-3-235491.

[0003]

However, the known techniques described in the above-mentioned publications have various problems.
First of all, if a small camera is attached to the back of the binoculars, it has two lens systems of the binoculars and three lens systems of the taking lens system of the camera, so that the whole is large and heavy, so it is difficult to carry. It's inconvenient.

Further, in a system in which the binoculars and the optical system of the camera are combined, the magnifications of the binoculars and the camera are not always the same, and the composition desired by the observer is not always obtained.
Furthermore, since they are integrated, even when either one is used, the unused camera or binoculars is always carried. Therefore, an object of the present invention is to provide a camera and binoculars that function as binoculars when necessary without impairing portability as a camera.

[0005]

In order to achieve the above-mentioned object, the present invention is as follows. First, a first optical system and a photographic film are loaded, and a light flux passing through the first optical system is applied to the photographic film. In a camera including a photographing unit that exposes the light flux on a film surface by guiding, a second optical system having the same configuration as the first optical system is provided, and an optical axis is with respect to an optical axis of the first optical system. A camera that functions as binoculars is provided by adding them in parallel.

Secondly, the second optical system is added to the opposite side of the first optical system with the photographing unit in between.
Thirdly, a first optical system, a second optical system having the same configuration as the first optical system and arranged so that its optical axis is parallel to the optical axis of the first optical system, and the first optical system. Is disposed between the system and the second optical system, is loaded with a photographic film, and guides the light flux that has passed through at least one of the first optical system and the second optical system to the photographic film, thereby Provided is binoculars including a photographing unit that exposes light on a film surface.

Fourthly, in the binoculars, one of the first optical system and the second optical system is detachably attached to the other optical system with respect to one optical system and the photographing unit, and the other optical system is detachable. It functions as a camera by removing the system. Fifth
Further, in the binoculars, the photographing unit provides the binoculars that guides the light flux that has passed through one of the first optical system and the second optical system to the photographic film.

[0008]

The camera and binoculars configured as described above are
It can also be used as binoculars by adding a second optical system whose optical axis is parallel to the optical axis of the optical system. Further, the second optical system is added to the opposite side of the first optical system with the photographing unit provided in the camera interposed therebetween. Further, the film surface is exposed using the light flux that has passed through at least one of the first optical system and the second optical system in the binoculars. The other optical system of the binoculars is detachably attached to one optical system and the photographing unit, and the other optical system is detached to function as a camera. Then, the light flux passing through one optical system of the binoculars is guided to the exposed surface of the photographic film.

[0009]

Embodiments of the present invention will now be described in detail with reference to the drawings. First, FIG. 2 shows an external configuration of the camera of the present invention and the camera of the binoculars, which will be described.

In this camera, a photographing lens 2 (for example, a taking lens) as a photographing optical system and a flash light emitting section 30 are provided on the front surface of the camera body 1. On its upper surface, a release button 31 which is a two-stage switch, a zoom switch 32 for driving the zoom by operating in the left and right direction, a display section 35 by an LCD for displaying exposure information, the number of frames taken, and the like, and ,
A power switch 40 for turning the power on and off is provided.

A finder eyepiece portion 36 of a finder optical system is provided on the rear surface of the camera, and an openable / closable battery lid 37 for loading / unloading a battery and an openable / closable for loading / unloading a cartridge are provided on the lower surface. Patrone lid 38
Is provided.

FIG. 1 shows the camera A- shown in FIG.
It is a figure which shows the structure in an A'section. In this camera, the taking lens 2 is a first movable lens that can move back and forth on the optical axis.
The moving frame 3, the first lens group 4 fixed to the moving frame 3, and the second lens group
A moving frame 5 and a second lens group 6 fixed to the moving frame 5 are provided, and are configured to move by the rotation of a cam frame 7 having a moving cam mechanism (not shown). The state moved to the front by zooming is indicated by the zoom position 2a. But,
The lens configuration is not limited to the two groups, and various configurations may be used.

A diaphragm shutter unit 8 having both a shutter function and a diaphragm function is fixed to the second moving frame 5.
Behind the taking lens 2, a first mirror 9 for bending the light beam condensed by the taking lens 2 is at a retracted position 9a.
It is rotatably provided between and, and converts the light flux passing through the taking lens 2 to the right by about 90 °. This first mirror 9
An auxiliary lens 10 for extending the back focus of the taking lens 2 to form an image on the film surface 13 is arranged on the right side of the as a first optical system. A second mirror 11 shown in FIG. 1B is provided in front of the auxiliary lens 10.
The second mirror 11 has an action of bending the condensed light beam downward by about 90 ° with respect to the first mirror 9.
It is a rotated arrangement of.

The light beam bent downward by the second mirror 11 exposes the film 13 within a range determined by the screen frame 12. Further, aperture blades may be provided instead of the aperture shutter unit 8 and a focal plane shutter may be provided in front of the screen frame 12.

As shown in FIG. 1, the cartridge 14 is located behind the screen frame 12 and is connected to a connecting portion (not shown) on the cartridge side by a driving fork 17 for driving, so that the film 13 is fed. Done. A gear 17a is provided on the fork 17 and is connected to the motor 16 via a film feeding gear train (not shown). The spool 15 for winding the film is rotatably provided with a motor 16 disposed inside.

The spool 15 is rotationally driven by a gear train (not shown) via a pinion 16a of a motor 16. The motor 16 is fixed to the camera body 1. The film 13 is sent out from the cartridge 14 and wound around the spool 15. At this time, the film is held at a predetermined position on the optical axis between the film retainer 39 and the screen frame 12.

As shown in FIG. 1B, the second mirror 11
In the space between the camera and the exterior of the camera body 1, a display unit 35 including an LED and the flash main capacitor 2 are provided.
5 are arranged.

Next, FIG. 3A is a view showing a cross section taken along the line CC ′ including the film portion of the camera shown in FIG. 2. The lower half of the second mirror 11 is cut and the lower half of the auxiliary lens 10 is visible because of the cross section of the center of the screen. The film 13 from the cartridge 14 passes under the screen frame 12 and is wound on the spool 15. A power supply battery 33 and a flash light emitting unit are provided in front of the spool 15.

Next, FIG. 3 (b) is a view showing a DD 'cross section of the viewfinder optical system of the camera shown in FIG. In this camera, the light flux condensed by the taking lens 2 is guided to the rear viewfinder optical system when the first mirror 9 is in the retracted state 9a. However, at the time of retracting the first mirror 9a, all light to the film system is blocked. The finder is composed of a negative lens system 18 and a positive lens system 19. Behind the negative lens 18, a thin semi-transmissive third mirror 20 for bending a part of the light beam downward for AF and making it enter an AF unit including an AF side distance sensor and an optical system is provided. Will be placed.

Further, above the third mirror 20, an LCD 22 for displaying a screen frame and a backlight 23 as a light source for projecting a screen frame display 22a of the LCD 22 are provided via a taking lens 24. The backlight 23 is composed of LEDs, surface emitting electrons, or the like. The screen frame display 22a of the LCD 22 is variable, and is, for example, a normal service print (normal size (aspect ratio: about 1: 1.5), panorama size (about 1: 2.8), high-definition size ( The screen is switched to the screen frame display showing the formats such as the same 1: 1.8) and the cinemascope size (about the same 2.3: 3). The exposure screen frame 12 of the film is the standard 24 × of the current 35 mm film.
When a film smaller than a 35 mm film (hereinafter referred to as a small film) is used for 36 mm, the entire size is reduced, and for example, a high-definition format of about 16 × 28 mm is standard. Therefore, the taking lens 2 is also configured to be smaller than the conventional one by the screen diagonal length ratio.

Then, by the backlight 23, the LCD 2
The second screen frame display 22a is displayed by the projection lens 24 in the third
The image is bent backward by the mirror 20 and displayed on the eyes of the photographer looking into the viewfinder so as to overlap the subject. Although the backlight light passes through the third mirror 20 and a part of it reaches the AF optical system, the side distance is treated so that an error does not occur.

Next, FIG. 4 shows a zoom drive section and an AF unit section of the camera of this embodiment, which will be described. First, the zoom motor 26 is coaxially fixed with a photo interrupter comb disk 28 for driving a drive system, and a photo interrupter PI 27 for detecting the rotation thereof is arranged. The drive force of the zoom motor 26 is reduced by the gear train 29, and the rotational force is transmitted to the cam frame 7. When the cam frame 7 is rotated, the above-described zoom operation of the taking lens 2 is performed. The zoom position (focal length) can be detected by a member (not shown) that detects the zoom end in addition to the PI 27, and the movement of the lens group that contributes to focusing is controlled by an autofocus drive system (not shown). Used. The AF unit 21 is housed under the half mirror 20.

Further, in FIG. 4 (b), the battery 3 is placed near the front.
3 shows the stored state. Furthermore, the layout of the flash main capacitor 25 is shown. The viewfinder optical system from the taking lens 2 of the camera configured as above to the eyes of the photographer will be described.

First, when the power switch 40 is OFF, the taking lens 2 is in the same position as the pair or retracted in front of the camera. When the power switch 40 is turned on, the taking lens 2 can be zoomed by the zoom switch 32. If it is in the retracted state when it is OFF, it automatically operates up to a predetermined focal length.

At that time, the first mirror 9 is in the retracted position, and the light flux to the film system is cut off so that it is not exposed. Further, the diaphragm shutter unit 8 is in an open state, and the incident light flux is guided to the finder system.
The photographer can observe the subject image condensed by the photographing lens 2 from the finder eyepiece 36 through the finder including the negative / positive lens systems 18 and 19.

A part of the light beam is incident on the AF unit 21 by the third mirror 20 which is a half mirror, and the focusing operation is performed after the side distance is separated by the first stroke of the release button 31. Various information of the camera is displayed on the LCD of the display unit 35.

Further, for the photographer, the screen frame display 2 of the LCD (22) is provided by the backlight 22 through the projection lens 24.
The second mirror 2a can be seen by the third mirror 20 so as to be superimposed on the subject image formed by the taking lens 2. Therefore, the photographer can perform framing.

Next, a description will be given of the image forming system in which the light flux condensed on the taking lens 2 reaches the film 13. By pressing the release button 31 of this camera to the first stroke and ending the AF operation, and further pressing the release button 31 to the second stroke,
The exposure sequence begins. First, the aperture shutter unit 8 is completely closed, and the aperture member creates a predetermined aperture diameter. Next, as shown in FIG. 1A, the first mirror 9 rotates clockwise by about 90 ° from the retracted state 9a,
It is located on the optical axis of the taking lens 2.

Next, the shutter member of the aperture shutter unit 8 is opened for a predetermined time. The light flux from the taking lens 2 is bent to the right by the first mirror 9 and the image forming position is extended by the auxiliary lens 10 [FIG. 1 (a)],
Further, it is bent downward by the second mirror 11 and an image is formed on the surface of the film 13 in the range determined by the screen frame 12 [FIG. 1 (b)].

When the shutter is closed, the first mirror 9
Rotates counterclockwise [Fig. (A2)] and moves to the retracted state 9a.
Return to. Further, the shutter is opened after the aperture is opened.

During exposure on the film surface, the light flux from the first mirror 9 to the finder optical system is completely blocked, and there is no reverse incident light from the finder optical system. Then, for example, the small film 13 is loaded by opening the cartridge cover 38 on the lower surface of the camera body 1. The film cartridge 14 in which the small film 13 is loaded is a new system and has a smaller outer diameter and height than the conventional one (φ
17 × h30), and usually the film 13 is completely wound in the cartridge 14. Since the height of the cartridge 14 is small, the width of the camera body 1 in the left-right direction shown in the top view of FIG. 2 can be reduced to about 70 mm.

When the cartridge cover 38 is closed, the drive fork 17 is rotated in the clockwise direction (CW) shown in FIG. 3 by the motor 16 by the gear train (not shown) via the gear 17a, and the film 13 is removed from the cartridge 14 to the outside. And sent to the spool 15.

Next, the spool 16 is driven clockwise by the motor 16 in FIG.
Wrapped around. At this time, a function (not shown) enables the cartridge side to rotate without hindering the drive on the spool side.

When the photographing is finished, the cartridge 14
The side is driven to rewind the film 13 into the cartridge 14. At this time, the spool side can rotate without hindering the film rewinding. When photographing is completed and the power switch 40 is turned off, the photographing lens 2 stops after moving from the camera body 1 to a position where a business trip is not made.

The battery 33 for the power source is shown in FIGS.
As shown in (a), the film take-up spool 15 is housed in the front thereof, and the battery lid 3 for loading and unloading is provided on the right side surface of FIG.
7 is provided. By disposing the battery 33 in the space in front of the spool 15 which is formed by the length of the taking lens 2 in the lengthwise direction with respect to the winding film spool 15, a space without waste can be used. Similarly, the flash light emitting unit 30 also has a spool 1
Shooting lens 2 using 5 front space and seen from the front
By placing it at a position away from, the condition for red eye phenomenon is improved. [FIG. 3 (a), FIG. 2] Further, the main capacitor 25 for the flash is shown in FIG.
As shown in (a) and (b), it is placed between the second mirror 11 and the exterior of the camera body 1. They are efficiently arranged in the triangular cross section shown in FIG. This main capacitor 2
5 can be replaced by a battery 33 having a similar shape.

The taking lens 2 needs a certain diameter to secure the brightness. For example, a focal length of 26 to 100 mm class (35 mm film size is 3
(Corresponding to 5 to 135 mm), the filter diameter is expected to be about 35 mm.

The height h of the camera body 1 of the taking lens 2
1 will be thicker. However, the film cartridge 14, spool 15, battery 33, main capacitor 2
5. The height h2 of the right half of the camera in which the flash light emitting unit 30 and the like are arranged can be reduced. For example, h
The difference between 1 and h2 is about 8 mm. Therefore, in the case of considering the holding form as shown in FIG. 5, it is possible to hold the convex portion of the taking lens unit like a grip, and it is possible to perform firm holding with less blurring.

Further, since the display section 35 of the camera is provided in the space above the second mirror 11, it is in a position where it is not covered by the fingers when holding. Also,
The first mirror 9 may not be rotatable but may be a semi-transmissive half mirror.

Next, the binoculars adapter added to the camera according to this embodiment will be described. FIG. 6 is a perspective view of the binoculars adapter, and FIG. 7A is a sectional view of the camera shown in FIG. 1 with the binoculars adapter added, FIG.
FIG.

In this binoculars adapter, a photographic lens 4'having the same lens group as the photographic lens 4 and a moving frame is provided on the front surface of the binoculars adapter main body 100 having a size substantially the same as that of the photographic optical system of the camera described above. Similarly, a finder optical system is provided on the back surface.

When the information connection lid (open state) 110 attached to the camera body 100 and the information communication lid of the binoculars adapter are not connected, the connection port is closed and opened by moving (opened in the figure). State), the camera and the binoculars adapter are connected. At that time, the information signal pin 111 on the camera side and the pin 116 of the binoculars adapter come into contact with each other to receive the information output from the information signal pin 111. Further, the driving force transmission gear 112 and the gear 115 mesh with each other.

These are extended so as to cover the connecting bellows provided on the binoculars adapter. Then, the eye width adjustment dial 114 is turned so that the width of the eyepiece of the finder matches the eye width of the observer, and the distance between the finder of the camera body and the finder of the adapter is adjusted.

The operation when the binocular finder having such a configuration is added to the camera will be described. When the connection lid 110 of the camera body 1 is opened, the drive gear 112 and the information pin 111 come out. Similarly, when the connection lid 117 of the adapter body 100 is opened, the driven gear 115 and the information receiving section 1 are opened.
16 comes out.

Then, the connecting bellows 113 and the interpupillary distance adjusting dial 114 are attached to each other, thereby connecting the adapter body 100 and the camera body 1. By this connection, the drive gear 112 meshes with the driven gear 115, and power can be transmitted from the camera side to the adapter side. The power transmitted by this causes the lens barrel on the adapter side to perform the zooming operation and the focus adjustment in conjunction with the taking lens system on the camera side. Further, by connecting the information pin 111 and the information receiving section 116, the information on the camera side and the information on the adapter side are exchanged. This information may be focus shift information of the lens barrels on the camera side and the main body side, (AF) focus adjustment information, or information displayed in the viewfinder on the adapter side.

The connecting bellows 113 has a function of connecting the camera body 1 and the adapter body 100, and a function of protecting the power transmission unit and the information transmission unit from the outside. As described in detail above, according to the embodiment of the present invention, the following configuration can be obtained.

First, it is provided with a first optical system and a photographing unit which is loaded with a photographic film and guides the light flux passing through the first optical system to the photographic film to expose the light flux on the film surface. In the camera, a second optical system having the same configuration as the first optical system is added so that its optical axis is parallel to the optical axis of the first optical system, and the first optical system is added to the second optical system. Provided is a camera which transmits a driving force for driving a system. Secondly, the first optical system,
A second optical system having the same configuration as the first optical system and arranged such that the optical axis is parallel to the optical axis of the first optical system;
Is disposed between the first optical system and the second optical system,
A photographing unit that is loaded with a photographic film and guides a light beam that has passed through at least one of the first optical system and the second optical system to the photographic film to expose the light beam on the film surface; and the first optical system. There is provided a camera including a first drive source for driving the second optical system and a second drive source for driving the second optical system.

In the above-mentioned second camera, the first camera
The drive source and the second drive source are compelled. Further, the present invention is not limited to the above-described embodiments, and it goes without saying that various modifications and applications can be made without departing from the scope of the invention.

[0048]

As described above in detail, according to the present invention, in the first invention, it can be used as binoculars by adding a second optical system whose optical axis is parallel to the optical axis of the first optical system. Camera can be provided.

Further, in the second invention, since the second optical system is added to the opposite side of the first optical system with the photographing unit provided in the camera interposed therebetween, even when used as binoculars, It is small and easy to carry.

In the third aspect of the invention, the film surface is exposed using the light flux that has passed through at least one of the first optical system and the second optical system of the binoculars. Furthermore, the fourth
In the invention, the binoculars of the third invention are configured so that the other optical system is detachably attached to one optical system and the photographing unit, and the other optical system is detached to function as a camera. Can be obtained.

In the fifth aspect of the invention, since the light flux passing through one of the optical systems of the binoculars of the third aspect is guided to the exposed surface of the photographic film, binoculars having a simpler structure can be obtained. it can. As described above, the present invention can provide a camera and binoculars that function as binoculars when necessary without impairing portability as a camera.

[Brief description of drawings]

1A is a diagram showing a configuration of the camera shown in FIG. 2 taken along the line AA ′, and FIG. 1B is a diagram showing a configuration of the camera shown in FIG. 2 taken along the line BB ′. is there.

FIG. 2 is a diagram showing an external configuration of a camera and a camera as an example of binoculars of the present invention.

3 (a) is a view showing a cross section taken along the line CC ′ of the camera shown in FIG. 2 including the film portion, and FIG. 3 (b) is a view taken along the line DD ′ of the viewfinder optical system of the camera shown in FIG. It is a figure which shows a cross section.

4A is a diagram showing a configuration of a zoom drive unit and an AF unit unit of the camera shown in FIG. 2, and FIG.
It is a figure which shows the DD 'and EE' cross section of the camera shown in FIG.

FIG. 5 is a diagram showing an example of a holding form according to the present embodiment.

FIG. 6 is a perspective view of a binoculars adapter added to the camera shown in FIG. 1 as an embodiment of the camera and binoculars of the present invention.

7 (a) is a cross-sectional view showing a state in which a binoculars adapter is added to the camera shown in FIG. 1, and FIG. 7 (b) is a front view thereof.

[Explanation of symbols]

1 ... Camera body, 2 ... Shooting lens (taking lens), 2a ... Zoom position, 3 ... First moving frame, 4 ... First lens group, 5 ... Second moving frame, 6 ... Second lens group, 7 ... Cam Frame, 8 ... Aperture shutter unit, 9 ... First mirror, 9a
... retracted position, 10 ... auxiliary lens, 11 ... second mirror, 1
2 ... screen frame, 13 ... film (film surface), 14 ... patrone, 15 ... spool, 16 ... motor, 16a ... pinion, 17 ... drive fork, 17a ... gear, 30 ... flash light emitting section, 31 ... release button, 32 … Zoom switch, 35… Display, 36… Viewfinder eyepiece, 3
7 ... Battery lid, 38 ... Patrone lid, 39 ... Film retainer, 40 ... Power switch.

Claims (5)

[Claims] 1. A first optical system, and a photographing unit that is loaded with a photographic film and exposes the light flux on the film surface by guiding the light flux that has passed through the first optical system to the photographic film. In the camera, a second optical system having the same configuration as the first optical system is added so that its optical axis is parallel to the optical axis of the first optical system, thereby having a feature of functioning as binoculars. . 2. The second optical system of the first optical system,
The camera according to claim 1, wherein the camera is attached to the opposite side of the photographing unit. 3. A first optical system, a second optical system having the same structure as the first optical system and arranged so that its optical axis is parallel to the optical axis of the first optical system, It is arranged between the first optical system and the second optical system,
A photographic film, and a photographing unit that exposes the light flux on the film surface by guiding the light flux that has passed through at least one of the first optical system and the second optical system to the photographic film. Characteristic binoculars. 4. A camera, wherein one of the first optical system and the second optical system is detachably attached to one optical system and a photographing unit, and the other optical system is detached. The binoculars according to claim 3, functioning as a binocular. 5. The binoculars according to claim 3, wherein the photographing unit guides a light beam that has passed through one of the first optical system and the second optical system to the photographic film.