JPH095865A - Grip structure of camera - Google Patents

Abstract

PURPOSE: To provide a camera capable of well-balancedly arranging a finder optical system and an optical system for picking up an image by providing specific first and second light guiding means and an image pickup element respectively. CONSTITUTION: A luminous flux reflected by a translucent mirror 41 is led to the upper part of a camera, to form a primary image 43 at a position equivalent to a film surface. The luminous flux is further reflected to the rear of the camera by a reflecting mirror 45, in the upper part of the primary image 43 and then, diagonally to the front of the side of the camera by another reflecting mirror 47 installed in the rear of the reflecting mirror 45. The luminous flux led by the reflecting mirror 47 is reflected downward by a reflecting mirror 49 installed in the upper part in a holding part including a first projecting part and enters into the first projecting part. On the other hand, a relay optical system 51 is vertically installed in the first projecting part and further, the image pickup surface 53 of the image pickup element is located in the lower part of the relay optical system 51. Therefore, the luminous flux reflected by the reflecting mirror 49 is reduced by the optical system 51, to pick up the image on the image pickup surface 53. Thus, the image is picked up.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a camera for splitting an incident light beam to form an optical path leading to a photosensitive recording medium and an optical finder. Alternatively, the present invention relates to a camera that forms an optical path that splits an incident light flux and guides it to a photosensitive recording medium and an image sensor. In the latter camera, the image picked up by the image pickup element is electronically or magnetically recorded separately from the image picked up on a photosensitive recording medium, for example, a silver salt film, or reproduced on an electronic viewfinder. Used for purposes.

[0002]

2. Description of the Related Art A camera in which an incident light beam is split and guided to a photosensitive recording medium and an optical viewfinder is widely used under the name of a single-lens reflex camera. In such a camera, an optical system for reducing and observing an image of a size suitable for a photosensitive recording medium and erecting an inverted image is required. Therefore, a large optical system for accommodating the optical system is generally required. A protrusion is installed on top of the camera. In addition, although many cameras have been proposed in the past, which divide the incident light flux and guide it to the photosensitive recording medium and the image pickup element,
In fact, it is rarely used.

[0003]

In a camera in which an incident light beam is split and guided to a photosensitive recording medium and an optical viewfinder, since the large optical system is housed above the camera as described above, the camera is Not only is it bulky, but the center of gravity of the camera is too biased upward. as a result,
It is difficult to hold the camera stably during shooting, which causes camera shake. In addition, the camera may fall upside down when it is hung using a strap, and at that time, the camera body or the lens may collide with something and be damaged.

The reason why the camera which splits the incident light beam and guides it to the photosensitive recording medium and the image pickup device is not practically used is considered as follows.
That is, since an image pickup device having a large image pickup surface area is expensive, an element used in a video or the like generally has an image pickup surface area much smaller than that of a photosensitive recording medium (silver salt film). Therefore, it is necessary to use a relay optical system or the like that reduces the image at a high reduction ratio when the image formed on the silver salt film for image pickup is guided to the image pickup device. Since the relay optical system requires a long optical path length, a large structure is required above the camera as compared with the single-lens reflex camera. As a result, the device becomes a large-scale device in which another camera is mounted on top of the ordinary camera, and the shape of the device is very different from that of the ordinary camera, which makes the consumer feel uncomfortable. The object of the present invention is to
An object of the present invention is to provide a camera in which a finder optical system and an optical system for imaging can be arranged in good balance.

[0005]

In order to achieve the above object, the present invention according to claim 1 divides a light beam in an optical path from an objective optical system to a photosensitive recording medium, and divides the light beam into a camera side. A first light guide means for guiding the light flux toward the side, a second light guide means for guiding the light flux guided laterally by the first light guide means in the up-down direction in the grip portion of the camera, and a second light guide means. And an image pickup element that receives a light beam guided by the image pickup device and picks up an image.

Further, it is preferable that the first light guide means guides the light beam laterally and forward of the camera, that is, obliquely forward. Further, at this time, it is preferable that the gripping portion has a projecting portion projecting forward from the front surface of the camera at a side end portion of the camera, and the second light guide means guides the light beam in the projecting portion. Further, the camera further has a second projecting portion projecting forward of the front surface of the camera at a side end portion opposite to the side end portion, and the second projecting portion is inserted into or removed from the camera. It is desirable to install a storage chamber for loading possible units such as a photosensitive recording medium, a battery, a recording medium for picked up images. Further, the first light guide means may split the light flux not directly to the side of the camera but to split it above or below the camera. On the other hand, in each of the above configurations, the camera can be configured by installing an optical finder device instead of the image pickup device.

[0007]

According to the structure of the present invention, the divided luminous fluxes are guided to the side of the camera, and are further guided to the side in the vertical direction for imaging or finder observation. Further, the protrusion provided on the grip portion contributes to stable holding of the camera. Further, the provision of the two protruding portions contributes to the stable holding of the camera with both hands, and also ensures the holding of the camera for both right-handed and left-handed users. In addition, if an optical path or a storage chamber for a unit that is inserted into or removed from the camera is installed in the protruding portion, a longer optical path length can be obtained or the space in the camera can be widely used.

[0008]

1 to 3 show the outline of the configuration of the present invention. In FIG. 1, reference numeral 1 is a camera body, and a taking lens 11 is installed on the front surface portion. Further, a first projecting portion 13 is installed at a side end portion of the camera body 1, and a second projecting portion 15 is installed at an opposite side end portion thereof so as to project further forward than the front surface of the camera. There is. These protrusions 1
The fingers 3 and 15 are adapted to be held by the fingers when the camera is held by the left hand and the right hand, respectively, and contribute to stably hold the camera. The first and second protrusions 13 and 15
And the part behind them becomes the grip part of the camera. In addition, the camera body 1 is provided with various well-known structures necessary for photographing, but the description thereof is omitted because it is not related to the gist of the present invention.

FIG. 2 schematically shows the main structure of the optical system inside the camera body 1. The light flux incident from the taking lens 11 is behind the taking lens 11 at an angle of 45 degrees with respect to the optical axis. It is divided by the semi-transparent mirror 21 installed. The light flux that has passed through the semi-transparent mirror 21 is imaged on the film F further behind and is photographed. On the other hand, the light flux reflected by the semitransparent mirror 21 forms a primary image 23 at a position equivalent to the film F. This primary image may be an aerial image, or may be one in which a focusing screen is installed on the image plane and an image is formed thereon. When formed as an aerial image, this image can be clearly viewed or imaged as a bright image, and when formed on the focusing screen, the in-focus state and depth of field must be clearly visible. You can The light flux forming the primary image 23 is further reflected by the reflecting mirror 25, and then the secondary image 2 is transmitted through the relay optical system 27.
9 is formed. An image pickup device such as a CCD is provided so that the image pickup surface coincides with the position of this secondary image.

FIG. 3 is for observing an image with an optical finder, not for image pickup, and has the same configuration as that of FIG. 2 up to the point where the primary image 23 is formed. In this configuration, the primary image 23 is erected by the image erecting optical system 31 configured by a combination of reflecting mirrors, and then observed by the eyepiece lens 33. In addition, instead of observing the primary image 23, a secondary image is formed by the relay optical system,
It may be configured to observe it with an eyepiece.

4 to 6 show a first embodiment of the present invention. In FIG. 4, only the optical path forming member in the camera is shown, and other configurations are omitted. Further, the taking lens is also omitted in the drawing. On the other hand, FIG. 5 and FIG. 6 schematically show the internal arrangements of the camera when viewed from above and when viewed from the front. In each figure, reference numeral 41 denotes a semi-transparent mirror, which is installed at an angle of 45 degrees with respect to the optical axis of a taking lens (not shown), and splits a light beam incident through the taking lens. The light flux that has passed through the semi-transparent mirror 41 is imaged on the surface F of the film loaded in the camera at the rear side and is photographed.

On the other hand, the light beam reflected by the semi-transparent mirror 41 is guided above the camera and forms a primary image 43 at a position equivalent to the film surface F. The light flux forming the primary image 43 is reflected to the rear of the camera by the reflecting mirror 45 above it. After that, the light beam is reflected by the other reflecting mirror 47 installed behind the reflecting mirror 45 in the diagonally forward and sideward direction of the camera. Reference numeral 49 is a further reflecting mirror, which is shown in FIG.
It is installed above the inside of the grip portion including the first protruding portion 13 shown in (see FIG. 5). The light beam guided by the reflecting mirror 47 is reflected downward by the reflecting mirror 49, and travels downward in the first protrusion 13. On the other hand, the relay optical system 5 is vertically provided in the first protrusion 13.
1 is installed, and the image pickup surface 53 of the image pickup element is located further below. Therefore, the light flux reflected by the reflecting mirror 49 is reduced by the relay optical system 51, and is imaged on the imaging surface 53 to be imaged. The captured image is reproduced and observed by an electronic viewfinder installed at the rear of the camera, and a gripping portion including the second protrusion 15 (a gripping portion on the side opposite to the gripping portion where the optical path is formed). It is recorded as a still image or a moving image on a recording medium MED made of any one of a magnetic / magneto-optical disk, a magnetic tape, an IC card, etc., which is loaded in the accommodation chamber MEDC formed in the (part). In addition, a battery BA that serves as a power supply for operating the camera is provided in the grip portion including the second protrusion.
A battery chamber BATC for loading two Ts in series is formed.

When a rolled silver salt film is used as a photosensitive recording medium, a silver salt film cartridge FC
A cartridge chamber CMB for loading the cartridge and a spool chamber SPL for winding the silver salt film are required. In the case of this embodiment, the battery BAT, the relay optical system 51, etc. are arranged using the protrusions 13 and 15. Therefore, as shown in FIG. 5, the cartridge chamber CMB can be provided in the rear portion of the battery BAT loading portion, and the spool chamber SPL can be provided in the rear portion of the installation portion of the relay optical system 51 and the like. Therefore, the structure for loading the film is the same as the conventional camera generally used.

In the present embodiment, since the optical path forming members such as the reflecting mirror 49 and the relay optical system 51 are arranged in the first projecting portion 13, no special space is required at the rear portion thereof, and the conventional structure is used. The configuration arranged in the camera can be arbitrarily arranged. Therefore, the optical system configuration of the present invention can be adopted without significantly changing the conventional configuration.

7 and 8 show a second embodiment of the present invention. In this embodiment, the light flux reflected toward the first protrusion 13 is not reflected downward as it is, but is reflected once toward the rear of the camera and then downward. Is different from the first embodiment. In the following description, the same members as those in the first embodiment are designated by the same reference numerals, and the description will be simplified. The light flux which is reflected by the semi-transparent mirror 41 and forms the primary image 43 is guided through the reflecting mirrors 45 and 47 to the side obliquely forward of the camera. The luminous flux is reflected to the rear of the camera by the reflecting mirror 55 installed in the first protruding portion 13, and is guided to the lower side of the camera by the reflecting mirror 57 arranged behind the reflecting mirror 55. A relay optical system 59 is installed below the reflecting mirror 57 in the vertical direction, and an image pickup surface 61 of the image pickup element is located below the relay optical system 59. Therefore, the light flux reflected by the reflecting mirror 57 is reduced by the relay optical system 59, and the imaging surface 61
An image is formed and imaged on the top. The captured image is reproduced on the electronic viewfinder and observed, and is recorded on the recording medium MED as a still image or a moving image.

In this embodiment, the light beam sent to the first projecting portion 13 is reflected backward and then guided in the vertical direction. Therefore, the spool chamber SPL for winding the roll-shaped silver salt film loaded in the camera is arranged by using the first protrusion 13 in order to avoid the light flux. That is, as shown in FIG. 8, the spool chamber SPL is installed below the reflecting mirror 55, and the exposed portion of the film is sequentially sent forward along the side surface of the camera, and below the reflecting mirror 55. Being rolled up. In addition, in FIG. 8, in order to prevent the illustration from becoming complicated, the spool chamber SP
L is shown by a virtual line. In addition, the recording medium accommodation room MED
The arrangement of C, the battery chamber BATC, and the cartridge chamber CMB is the same as in the first embodiment.

In the second embodiment, the relay optical system 5 is used after the light flux which is once reflected obliquely forward is further reflected backward.
9 to the relay optical system 59 from the primary image 43.
The optical path length until the light beam enters is longer than that in the first embodiment, and a relay optical system having a high reduction rate can be used accordingly.

Next, a third embodiment of the present invention will be described with reference to FIGS. Similar to FIGS. 4 and 7, FIG. 9 shows only the optical path forming member in the camera, and other configurations are omitted. 10 and 11 are schematic diagrams showing the internal arrangement when the camera is viewed from above and from the front, respectively.
In each figure, 71 is a semi-transparent mirror, which is installed at an angle of 45 degrees with respect to the optical axis of the taking lens (not shown), and splits the light flux incident through the taking lens. The light flux transmitted through the semi-transparent mirror 71 is imaged on the film surface F of the film loaded in the camera on the film surface F exposed in the exposure opening 73 at the rear.

On the other hand, the light beam reflected by the semi-transparent mirror 71 is guided below the camera and forms a primary image 75 at a position equivalent to the film surface F. The light flux forming the primary image 75 is further reflected below by the reflecting mirror 77 to the side of the camera (to the right from the front). After that, the luminous flux is reflected by another reflecting mirror 7 installed on the side of the reflecting mirror 77.
It is reflected above the camera by 9. The light beam guided by the reflecting mirror 79 travels upward in the rear grip portion of the first protrusion 13. A relay optical system 81 is installed vertically in the grip portion, and an image pickup surface 83 of the image pickup element is located above the relay optical system 81. Therefore, the light flux reflected by the reflecting mirror 79 is reduced by the relay optical system 81, and imaged on the image pickup surface 83. The captured image is reproduced and observed by an electronic viewfinder installed in the rear part of the camera, and a gripping portion including the second protrusion 15 (a gripping portion on the side opposite to the gripping portion where the optical path is formed). It is recorded as a still image or a moving image on the recording medium MED loaded in the accommodation chamber MEDC of (part).

Further, the battery chamber BATC of the grip portion including the second protrusion serves as a power source for operating the camera.
Book batteries BAT are connected and loaded in series,
One of them is loaded along the vertical direction of the camera, and the other one is loaded along the horizontal direction of the camera. In this embodiment, the spool chamber SPL for winding the roll-shaped silver salt film loaded in the camera is arranged by using the first protrusion 13 in order to avoid the light flux. That is, as shown in FIG. 10, the spool chamber SPL is installed in front of the relay optical system 81, and the exposed portion of the film is sequentially sent forward along the side surface of the camera and wound up. In addition, as described above, the recording medium accommodation chamber ME
The DC and the battery chamber BATC are arranged by using the second protruding portion 15, and the arrangement of the cartridge chamber CMB is similar to that of a normal camera. In this embodiment, the light flux that is incident and split passes through the lower portion of the camera toward the image sensor, so that the lower portion of the camera is larger than the upper portion. Therefore, the center of gravity of the camera is located lower, and the stability of the camera is extremely good.
Next, a fourth embodiment of the present invention will be described with reference to FIGS. FIG. 12 shows only the optical path forming member in the camera, and other configurations are omitted. 13 and 14 are schematic diagrams showing the internal arrangement when the camera is viewed from above and from the front, respectively.

In each figure, reference numeral 91 denotes a semi-transparent mirror, which is installed at an angle of 45 degrees with respect to the optical axis of a taking lens (not shown), and splits a light beam incident through the taking lens. The light flux transmitted through the semi-transparent mirror 91 is imaged on the film surface F of the film loaded in the camera on the film surface F exposed in the exposure opening 93 at the rear.

On the other hand, the light beam reflected by the semi-transparent mirror 91 is guided to the side of the camera (to the right from the front) and forms a primary image 95 at a position equivalent to the film surface F. The light flux forming the primary image 95 is further reflected to the upper side of the camera by the reflecting mirror 97 on its side.
The light beam guided by the reflecting mirror 79 travels upward in the rear grip portion of the first protrusion 13. A relay optical system 99 is installed in the vertical direction in the grip portion, and an image pickup surface 101 of the image pickup element is located above the relay optical system 99. Therefore, the light flux reflected by the reflecting mirror 97 is reduced by the relay optical system 99, and an image is formed and imaged on the image pickup surface 101. The captured image is reproduced and observed on an electronic viewfinder installed at the rear of the camera,
The accommodation chamber MED of the grip portion (the grip portion on the side opposite to the grip portion where the optical path is formed) including the second protrusion 15
It is recorded on the recording medium MED loaded in C as a still image or a moving image.

Further, two batteries BAT are connected in series and loaded in the battery chamber BATC of the grip portion including the second protrusion. In this embodiment, the spool chamber SPL for winding the roll-shaped silver salt film loaded in the camera is arranged by using the first protrusion 13 in order to avoid the light flux. That is, as shown in FIG. 13, the spool chamber SPL is installed in front of the relay optical system 99, and the exposed portion of the film is sequentially fed forward along the side surface of the camera and wound up. Further, as described above, the arrangement of the recording medium accommodation chamber MEDC and the battery chamber BATC is the same as that of the first embodiment, and the cartridge chamber CM
The arrangement of B is the same as in the first embodiment. In this embodiment, since the light beam is reflected not to the vertical direction of the camera but to the side directly, it is possible to prevent the camera from becoming large in the vertical direction.

Next, a fifth embodiment of the present invention will be described with reference to FIGS. FIG. 15 shows only the optical path forming member in the camera, and other configurations are omitted. 16 and 17 are schematic diagrams showing the internal arrangement when the camera is viewed from above and from the front, respectively. In each drawing, 103 is a semi-transparent mirror, which is installed at an angle of 45 degrees with respect to the optical axis of the taking lens (not shown), and splits the light flux incident through the taking lens. The light flux that has passed through the semi-transparent mirror 103 is the exposure aperture 1 of the film loaded in the camera behind.
An image is formed on the exposed film surface F in 05,
To be photographed.

On the other hand, the light flux reflected by the semi-transparent mirror 103 is guided to the side of the camera (to the right from the front) and forms a primary image 107 at a position equivalent to the film surface F. The light flux forming the primary image 107 is further reflected to the upper side of the camera by the reflecting mirror 109 at the side thereof. The light beam guided by the reflecting mirror 109 travels upward in the grip portion behind the first protrusion 13. Another reflecting mirror 111 is installed above the grip portion, and the light flux rising in the grip portion is reflected to the side of the camera (to the left from the front). A relay optical system 113 is installed laterally on the side of the reflecting mirror 111, and an image pickup surface 115 of the image pickup element is located further on the side thereof. Therefore, the light flux reflected by the reflecting mirror 111 is reduced by the relay optical system 113, and an image is formed and imaged on the image pickup surface 115. The captured image is reproduced and observed by an electronic viewfinder installed in the rear part of the camera, and a grip portion including the second protrusion 15 (on the side opposite to the grip portion where the ascending optical path is formed). It is recorded as a still image or a moving image on a recording medium MED including a magnetic / magneto-optical disk, a magnetic tape, an IC card, etc., which is loaded in the (grip portion).

In this embodiment, a spool chamber S for winding a roll of silver salt film loaded in a camera is used.
In order to avoid the luminous flux, the PL is the first like the fourth embodiment.
It is arranged by utilizing the protruding portion 13 of.

Further, a storage chamber MEDC for loading the recording medium MED and a battery chamber BATC are formed in the gripping portion including the second protrusion, and two batteries BA are provided.
Ts are electrically connected in series and arranged in parallel and loaded. Further, above the battery chamber BATC, a capacitor CAP that stores energy for causing a flash (not shown) incorporated in the camera to emit light is housed. The installation of the battery BAT and the capacitor CAP may be reversed.
In the present embodiment, the optical path from the primary image 107 to the incidence on the relay optical system 113 becomes long, so that a relay optical system having a high reduction rate can be adopted.

FIG. 18 shows a sixth embodiment of the present invention. The configuration of the optical system of the present embodiment is the configuration of the fifth embodiment upside down, and there is no other difference. That is, the light flux laterally reflected by the semi-transparent mirror 117 forms a primary image 119,
Furthermore, it is reflected below the camera by the reflecting mirror 121,
The light is guided laterally by the reflecting mirror 123. The light flux reflected by the reflecting mirror 123 is reduced by the relay optical system 125 arranged in the left-right direction, and the image pickup surface 127 of the image pickup element is obtained.
Is imaged and imaged.

In this embodiment, two battery BATs are connected and loaded in series in the battery chamber BATC of the gripping portion on which the second protrusion 15 is provided, and below the battery BAT. The capacitor CAP is housed in the lateral direction. Other configurations are the same as in the fifth embodiment. Also in this embodiment, since the optical path from the primary image 119 to the incidence on the relay optical system 125 becomes long, a relay optical system having a high reduction rate can be adopted.

In each of the above embodiments, the secondary image is formed by the relay optical system, and the image pickup element is arranged on the secondary image plane to perform the image pickup. It is also possible to adopt a configuration (optical finder) for observing the primary image with an eyepiece by introducing the above-mentioned method into the above. It should be noted that when an image is picked up by the image pickup device, even if the image is inverted, it can be erected by electrical processing, but when directly observing with an optical viewfinder, the image must be erected. Therefore, an erecting optical system such as a Porro prism (or an equivalent optical system) needs to be placed in place of each relay optical system. At that time, each reflection installed in order to guide the light flux into the grip portion. The mirror is also used as a part of the erecting optical system. It is also possible to dispose a focusing screen in place of the image pickup device of each of the above-described embodiments and observe the secondary image formed on the focusing screen with an eyepiece lens. Even in that case, it is necessary to appropriately arrange the erecting optical system, but as in the above case, each reflecting mirror installed to guide the light beam into the grip portion is used as a part of the erecting optical system. Can be combined.

FIG. 19 is an embodiment showing an example thereof. This embodiment is obtained by modifying the embodiment shown in FIG. 9 and installing an optical finder. In FIG. 19, reference numeral 131 denotes a semi-transparent mirror, which is 45 with respect to the optical axis of the taking lens (not shown).
It is installed at an angle of 4 degrees and splits the light beam incident through the taking lens. The light flux transmitted through the semi-transparent mirror 131 forms an image on the film surface F exposed in the exposure opening 133 of the film loaded in the camera at the rear and is photographed.

On the other hand, the light flux reflected by the semi-transparent mirror 131 is guided below the camera and forms a primary image 135 at a position equivalent to the film surface F. The light flux forming the primary image 135 is further reflected below it by the reflecting mirror 137 to the side of the camera (rightward from the front). After that, the light beam is reflected above the camera by another reflecting mirror 139 installed on the side of the reflecting mirror 137. The light flux guided by the reflecting mirror 139 travels upward in the rear grip portion of the first protrusion 13. A reflecting mirror 141 is installed above the grip portion and reflects the rising light flux toward the rear of the camera. An eyepiece lens 143 is arranged behind the reflecting mirror 141, and a primary image 135 is observed.
In this embodiment, each reflecting mirror for guiding the light beam to the eyepiece lens 143 also serves as an erecting optical system.

In each of the above embodiments, the light flux incident on the camera is configured to be guided to the right side toward the camera, but it is configured to be guided to the left side toward the camera, and the protruding portion is formed. Needless to say, it may be configured so that it is guided in the vertical direction on the 15 side. In that case, the battery chamber and the storage chamber for the recording medium may be formed on the protrusion 13 side.

[0034]

According to the structure of the present invention, the divided luminous fluxes are guided to the side of the camera, and further guided up and down by the gripping portions on the sides thereof, and thereafter, an image is taken or finder observation is performed. Therefore, it is possible to obtain a sufficient optical path length without providing a particularly large protruding space above the camera, and it is possible to provide an optical path for imaging or for a viewfinder without difficulty.

Further, not only can the contribution of stabilizing the holding of the camera be provided by providing the front projection on the grip portion, but also a longer optical path can be obtained by guiding the light beam obliquely laterally forward and passing through the projection. It becomes possible to obtain the length.

[Brief description of drawings]

FIG. 1 is a diagram showing an external view of a camera adopting the present invention.

FIG. 2 is a diagram showing a first outline of the configuration of the present invention.

FIG. 3 is a diagram showing a second outline of the configuration of the present invention.

FIG. 4 is a perspective view showing the internal configuration of the camera of the first embodiment of the present invention.

FIG. 5 is a schematic top view of the first embodiment.

FIG. 6 is a schematic front view of the first embodiment.

FIG. 7 is a perspective view showing an internal configuration of a camera of a second embodiment of the present invention.

FIG. 8 is a schematic top view of the second embodiment.

FIG. 9 is a perspective view showing the internal structure of the camera of the third embodiment of the present invention.

FIG. 10 is a schematic top view of the third embodiment.

FIG. 11 is a schematic front view of the third embodiment.

FIG. 12 is a perspective view showing an internal configuration of a camera of a fourth embodiment of the present invention.

FIG. 13 is a schematic top view of the fourth embodiment.

FIG. 14 is a schematic front view of the fourth embodiment.

FIG. 15 is a perspective view showing the internal structure of the camera of the fifth embodiment of the present invention.

FIG. 16 is a schematic top view of the fifth embodiment.

FIG. 17 is a schematic front view of the fifth embodiment.

FIG. 18 is a schematic front view of the sixth embodiment.

FIG. 19 is a perspective view showing the internal structure of the camera of the seventh embodiment of the present invention.

[Explanation of symbols]

41, 45, 47, 71, 77, 91, 103, 13
1, 137: 1st light guide means 49, 57, 79, 97, 109, 121, 139: 2nd light guide means 53, 61, 83, 101, 115, 127: imaging element 13: 1st protrusion Part 15: Second protruding part 41, 71, 131: Light beam splitting means 143: Optical finder BATC, MEDC, CMB: Storage chamber

Claims (7)

[Claims] 1. A camera capable of splitting a light beam from the same objective optical system to form an image on a photosensitive recording medium and another image plane, in an optical path from the objective optical system to the photosensitive recording medium. First light guiding means for splitting the light flux and guiding the split light flux laterally of the camera, and for guiding the light flux laterally guided by the first light guiding means vertically in the grip portion of the camera. A grip structure for a camera, comprising: a second light guide means; and an image pickup device that receives a light beam guided by the second light guide means to perform image pickup. 2. The grip structure for a camera according to claim 1, wherein the first light guide means guides a light beam obliquely forward of the camera. 3. The gripping portion has a protruding portion protruding forward from the front surface of the camera at the side end portion of the camera, and the second light guide means guides a light beam within the protruding portion. The grip structure for a camera according to claim 1, wherein the grip structure is a camera. 4. The camera further comprises a second projecting portion projecting forward from a front surface of the camera at a side end portion opposite to the side end portion, the second projecting portion. 4. The grip structure for a camera according to claim 3, wherein a storage chamber for loading a unit that can be inserted into and removed from the camera is installed inside the unit. 5. The camera grip structure according to claim 1, wherein the first light guide means has a light beam splitting means for splitting the light beam above the camera. 6. The grip structure for a camera according to claim 1, wherein the first light guide means has a light beam splitting means for splitting the light beam below the camera. 7. The camera grip structure according to claim 1, further comprising an optical finder device in place of the image pickup device.