JP2003156790A - Lens interchangeable camera - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lens interchangeable camera constituted so that a photographic lens unit and a camera body can surely electrically be connected to each other. SOLUTION: In this lens interchangeable type camera 10, a pair of projecting pieces 18 and 20 is formed on the outer periphery of the base end of the photographic lens unit 14, and a fitting part 22 in which the lower projecting piece 18 is fit is formed at the lower part of the lens mount 16. Then, a lock mechanism 24 fixing the upper projecting piece 20 is provided at the upper part thereof. Connectors 58 and 68 electrically connecting the unit 14 and the camera body 12 are installed on the end face of the base end of the unit 14 and the lens mount 16. By fitting the projecting piece 18 of the unit 14 in the fitting part 22 and turning it to the camera body side, the connectors 58 and 68 are connected each other. By such operation, the projecting piece 20 is locked by the lock mechanism 24 and the unit 14 is attached to the lens mount 16.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an interchangeable lens type camera, and more particularly to an interchangeable lens type camera having an image pickup means built in a taking lens unit.

[0002]

2. Description of the Related Art In the field of silver halide cameras, there has been known a lens interchangeable type camera in which a taking lens can be detached from a camera body and exchanged. In recent years, also in the field of digital cameras, an interchangeable lens type camera has been proposed in which the photographing lens can be exchanged like the silver halide camera. Generally, in such an interchangeable lens type camera, as disclosed in JP-A-11-142935, the bayonet mount is used to attach the photographing lens to the camera body.

By the way, a digital camera converts an optical image into an electronic image signal by using an image pickup device such as a CCD and records photographed image data on a recording medium. The image pickup device is not necessarily arranged in the camera body. There is no. For this reason, some interchangeable-lens type digital cameras have an image pickup element incorporated in the image pickup lens and the image pickup lens is exchanged for each image pickup element.

[0004]

However, in the lens interchangeable type digital camera in which the image pickup element is incorporated in the photographing lens, the image signal is transmitted and received between the photographing lens and the camera body in addition to the transmission and reception of the lens control signal and the like. Since it is necessary to provide a large number of electrical contacts to the mount, the conventional bayonet type mount has a limit in the number of contacts that can be secured due to its structure. On the other hand, a method of reducing the contact area to increase the number of contacts can be considered, but it has a drawback that poor contact is likely to occur.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an interchangeable lens type camera capable of reliably electrically connecting a photographing lens unit and a camera body.

[0006]

According to the present invention, in order to achieve the above object, a taking lens unit is detachably attached to a camera body, and the taking lens unit and the camera body are connected via a connector. In an interchangeable lens type camera in which are electrically connected to each other,
The photographing lens unit has an engaging portion rotatably engaged with an engaged portion formed on the camera body on one side across the optical axis, and is formed on the other side of the camera body. The connector is connected when the engaging portion is engaged with the engaged portion and rotated toward the camera body side. An interchangeable lens type camera is provided.

According to the present invention, when the engaging portion formed on the photographing lens unit is engaged with the engaged portion formed on the camera body and the photographing lens unit is rotated toward the camera body, Connector is connected. As a result, the photographing lens unit and the camera body can be easily and reliably electrically connected, and a large-sized connector having a large number of contacts can be used.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of an interchangeable lens camera according to the present invention will be described in detail below with reference to the accompanying drawings.

FIG. 1 is a perspective view showing an external configuration of a first embodiment of an interchangeable lens type camera according to the present invention.

As shown in FIG. 1, the interchangeable lens type camera 10 includes a camera body 12 and a photographing lens unit 14.
It consists of and. The taking lens unit 14 is detachably attached to the camera body 12, and is attached to a lens mount 16 provided on the front surface of the camera body 12 to be integrated with the camera body 12.

First, the structure of the connecting portion between the taking lens unit 14 and the lens mount 16 will be described.

As shown in FIGS. 1 to 3, the taking lens unit 14 is formed in a cylindrical shape and has a pair of projecting pieces 18 and 20 on the outer periphery of the base end portion thereof. This pair of protrusions 1
8 and 20 are formed in a plate shape having a predetermined width,
They are arranged symmetrically with respect to the photographing optical axis L.

On the other hand, the lens mount 16 is formed in a disk shape matching the shape of the end surface of the taking lens unit 14. A fitting portion 22 into which the lower projection 18 of the taking lens unit 14 is fitted is provided under the lens mount 16.
And a lock mechanism 24 for fixing the upper projecting piece 20 is provided on the upper part.

The fitting portion 22 is formed in a block shape, and its tip portion is formed so as to project from the front surface of the lens mount 16. Then, the hole 2 into which the lower projection 18 of the taking lens unit 14 is fitted on the upper surface of the protruding portion.
6 is formed.

On the other hand, the lock mechanism 24 fixes the upper projecting piece 20 by engaging a lock claw 28 having a hook-shaped tip with the upper projecting piece 20. The lock claw 28 is rotatably supported by a support piece 32 provided on the upper portion of the lens mount 16 via a rotary shaft 30, and a tapered hook portion 34 formed at the tip end thereof is projected upward. The upper projection 20 is locked by engaging the piece 20. Here, a groove 36 is formed inside the hook portion 34, and the upper projecting piece 20 is fitted and locked in the groove 36. Also, this lock claw 28
Is always biased downward by a tension spring 38 mounted between the lens mount 16 and the lens mount 16.

When the taking lens unit 14 is mounted on the lens mount 16, first, the taking lens unit 14 is mounted.
The lower protrusion 18 formed at the base end of the lens mount 1
6 is fitted into the hole 26 of the fitting portion 22 formed on the lower side. At this time, the photographing lens unit 14 tilts the front end portion downward with respect to the camera body 12 and slowly rotates the lower projection piece 18 into the hole 26 of the fitting portion 22.

When the photographing lens unit 14 is rotated, the upper projection 18 of the photographing lens unit 14 is rotated.
Is a lock claw 2 provided on the top of the lens mount 16.
Since it abuts on the hook portion 34 of No. 8, when the photographing lens unit 14 is further rotated, the projecting piece 20 pushes up the lock claw 28 using the taper of the hook portion 34 and passes through the hook portion 34. As a result, the end face of the photographic lens unit 14 is brought into close contact with the lens mount 16. On the other hand, the hook portion 38 through which the projecting piece 20 has passed rotates downward due to the action of the tension spring 38 attached to the lock claw 28, and the projecting piece 20 fits into the groove 36 formed on the inner surface thereof. . As a result, the taking lens unit 14 is locked to the lens mount 16.

FIG. 3 is a block diagram showing the internal structure of the interchangeable lens camera 10 shown in FIG.

As shown in the figure, the photographing lens unit 1
4 is a taking lens 40, a lens driving unit 41, a diaphragm 42,
Electronic volume circuit 5 having shutter 44, solid-state image sensor (CCD) 46, analog processing circuit 48, timing generator 50 for driving CCD, and D / A conversion unit
2, an EEPROM 54, a ROM 56, and a lens side connector (male) 58.

On the other hand, the camera body 12 is mainly composed of a signal processing circuit 60, a central processing unit (MPU) 62, a card connector 66 to which a memory card 64 is attached, and a body side connector (female) 68. Although not shown, the camera body 12 includes various keys and switches such as an LCD monitor, a power supply unit, an operation unit (power switch, release switch, mode selection switch, up / down keys, left / right keys, and execution key). Etc.) are provided.

In the taking lens unit 14 and the camera body 12, the lens side connector 58 provided in the taking lens unit 14 is attached to the lens mount 1 of the camera body 12.
6 is electrically connected to the body side connector 68 provided on the body 6, and signals can be transmitted and received to and from each other.

Here, the lens side connector 58 provided on the taking lens unit 14 is
Is provided on the end surface of the base end portion of the
It is arranged at a position slightly above the center on the line segment S connecting the 20 (position near the upper protrusion 18).

On the other hand, the body-side connector 68 provided on the camera body 12 is provided on the end surface of the lens mount 16 and is located slightly above the center on the line segment S connecting the fitting portion 22 and the lock mechanism 24. It is arranged at a position (position close to the lock mechanism 24).

The lens side connector 58 and the body side connector 68 connect the taking lens unit 14 to the camera body 1.
It is automatically connected by mounting it on the second lens mount 16. That is, when the lower projection 18 of the taking lens unit 14 is fitted into the hole 26 of the fitting portion 22 of the lens mount 16 and the taking lens unit 14 is rotated, the lens side is automatically moved along with the turning operation. The connector 58 is fitted into the body side connector 68. The lens-side connector 58 is fitted into the body-side connector 68, so that the taking lens unit 14 and the camera body 12
And are electrically connected to each other, and signals can be transmitted and received between the two.

By the way, in the case of a camera in which the taking lens unit 14 can be replaced like the interchangeable lens type camera 10 of the present embodiment, a program or data for defining the control method of the taking lens unit 14 is installed on the taking lens unit side. Need to be kept.

Therefore, the EEPROM 54 incorporated in the taking lens unit 14 stores various data necessary for controlling the image pickup section and processing image signals, such as adjustment values specific to the taking lens unit. Specifically, the CCD 46
Defect information, number of pixels, color filter array, color balance, CCD characteristic data such as sensitivity, taking lens 40
Information such as the lens characteristics (shading, distortion, etc.) is stored in the EEPROM 54. Also, the ROM 56
A control program showing the control method of the CCD 46, the timing generator 50 for driving the CCD, and the processing method of the signal processing circuit 60 is stored in the.

The interchangeable-lens type camera 10 of the present embodiment having the above-described structure has the following structure when the taking lens unit 14 is mounted on the mount 16 of the camera body 12 and the connectors are connected to each other. Works.

First, when the power switch provided on the camera body 12 is turned on, the MPU 62 loads the control program from the ROM 56 of the taking lens unit 14,
This is stored in the built-in DRAM 70. At the same time E
Various data necessary for adjusting the taking lens unit 14 are read from the EPROM 54 and stored in the DRAM 70.

The MPU 62 controls and controls each circuit of the interchangeable lens type electronic camera 10 on the basis of the control program and data stored in the DRAM 70. The MPU 62 includes a taking lens 40 of the taking lens unit 14, an aperture 42, a shutter 44, and the like. The photographing lens unit 14 such as the timing generator 50 and the electronic volume circuit 52 is controlled, and the signal processing circuit 60 is controlled to perform appropriate signal processing corresponding to information specific to the photographing lens unit. In addition, control for photographing by the input signal from the release switch provided in the camera body 12, read / write control of the memory card 64, and the like are performed.

That is, when the release switch is half-depressed, the MPU 62 outputs a control signal to the lens driving section 41 via the connectors 58 and 68 to move the taking lens 40 to the in-focus position. When the release switch is fully pressed, a control signal is output to the diaphragm 42 and the shutter 44 so that the exposure value becomes a predetermined value, and a subject image is formed on the light receiving surface of the CCD 46.

The subject image formed on the light receiving surface of the CCD 46 is photoelectrically converted here and sequentially read out as an image signal. This image signal is applied to an analog processing circuit 48 including a gain control (GC) circuit, a color balance adjusting circuit, an A / D converter, etc., where it is subjected to predetermined processing and then converted into a digital signal, and the connectors 58, 68. Is transferred to the signal processing circuit 60 of the camera body 12 via.

The signal processing circuit 60 is a luminance signal generation circuit,
Color difference signal generation circuit, gamma correction circuit, compression / expansion circuit,
Image data including a memory controller and processed by these circuits is recorded in the memory card 64 mounted in the card connector 66.

The image data stored in the memory card 64 can be read by the control of the MPU 62. The image data read from the memory card 64 is expanded by the signal processing circuit 60, and then displayed on a liquid crystal monitor (not shown). Is output.

As described above, according to the interchangeable lens camera 10 of the present embodiment, the taking lens unit 14 is used.
When the lower protruding piece 18 is fitted into the hole 26 of the fitting portion 22 of the lens mount 16 and the photographing lens unit 14 is rotated, the lens side connector 5 is automatically moved in accordance with the rotation operation.
8 is fitted in the body side connector 68, and the taking lens unit 14 and the camera body 12 are electrically connected to each other. This allows the connectors to be connected to each other accurately and reliably. Further, even if a large connector having a large number of contacts is used, it is possible to make a reliable connection without difficulty.

In the present embodiment, the lens-side connector 58 is arranged at a position slightly above the center of the line segment S connecting the pair of upper and lower projecting pieces 18, 20 (position near the upper projecting piece 18), The body-side connector 68 provided on the camera body 12 is located slightly above the center on the line segment S connecting the fitting portion 22 and the lock mechanism 24 (position near the lock mechanism 24).
However, the position of the connector is not limited to this, and the connector may be arranged at any position as long as it can be surely connected by the rotation operation accompanying the mounting of the taking lens unit 14.

However, considering that the lens-side connector 58 is connected securely and surely, the lens-side connector 58 is arranged on the line segment S connecting the pair of upper and lower projecting pieces 18, 20 and the body-side connector 68 is not. It is preferable to arrange them on a line segment S connecting the fitting portion 22 and the lock mechanism 24, and more preferably to arrange them at positions displaced from the center on the line segment S, respectively.

For example, as in the present embodiment, in the lens-side connector 58, a position slightly above the center on the line segment S connecting the pair of upper and lower protrusions 18, 20 (the upper protrusion 18).
In the body-side connector 68, it is arranged at a position slightly above the center on the line segment S connecting the fitting portion 22 and the lock mechanism 24 (position near the lock mechanism 24). Alternatively, conversely, the lens side connector 58 is arranged at a position slightly lower than the center on the line segment S connecting the pair of upper and lower projecting pieces 18 and 20 (position closer to the lower projecting piece 20), and the body side connector 68. Is arranged at a position slightly lower than the center on the line segment S connecting the fitting portion 22 and the lock mechanism 24 (a position near the fitting portion 24). In this way, by disposing the connector so as to be displaced from the center, the photographing lens unit 14
The connectors can be easily connected in accordance with the turning operation of, and the connectors can be connected to each other more reasonably and reliably.

Further, in the present embodiment, the lens side connector 58 is the male connector and the body side connector 68 is the female connector, but this configuration may be reversed.

FIG. 4 is a schematic view showing the configuration of the essential parts of a second embodiment of the interchangeable lens camera according to the present invention.
The same members as those in the first embodiment described above are designated by the same reference numerals, and detailed description thereof will be omitted.

As shown in the figure, this interchangeable lens type camera is provided with two connectors for electrically connecting the taking lens unit 14 and the camera body 12. That is, as shown in FIG.
A first lens-side connector 58a and a second lens-side connector 58b are provided on the end face of the base end portion of No. 4, and as shown in FIG.
Body side connector 68a and second body side connector 68b
And are provided.

Here, the first lens side connector 58a and the second lens side connector 58b provided in the taking lens unit 14 are arranged symmetrically with respect to the line segment S connecting the pair of upper and lower projecting pieces 18, 20. Further, it is arranged at a position slightly above the center of the line segment S (a position near the upper protruding piece 18).

On the other hand, the first provided on the camera body 12
Body side connector 68a and second body side connector 68b
Is also symmetrically arranged with respect to the line segment S connecting the fitting portion 22 and the lock mechanism 24, and is also arranged at a position slightly above the center of the line segment S (a position near the lock mechanism 24). .

According to the lens interchangeable type camera of the present embodiment configured as described above, the lower projection 18 of the taking lens unit 14 is attached to the hole 2 of the fitting portion 22 of the lens mount 16.
6 and the photographing lens unit 14 is rotated, the first lens side connector 58a and the second lens side connector 58b are automatically connected to each other along with the rotation operation, and the first body side connector 68a and the second body side connector 58a are rotated. The photographing lens unit 14 and the camera body 12 are fitted into the side connector 68b and electrically connected to each other. This allows signals to be transmitted and received between the two.

Here, the two connectors provided are
First lens side connector 58a and first body side connector 6
The control signal of the photographing lens unit 14 is transmitted by connection with the lens 8a, and the video signal is transmitted by connection between the second lens side connector 58b and the second body side connector 68b.

As described above, in the interchangeable lens type camera according to the present embodiment, the transmission of the control signal of the taking lens unit 14 and the transmission of the video signal are performed by the respective separate connectors.
At this time, in order to connect the connectors with ease and certainty, as in the lens-interchangeable camera according to the present embodiment, the connectors are arranged symmetrically with respect to the line segment S connecting the two connecting portions. It is preferable. That is, in the taking lens unit 14, the lens mount 1 is arranged symmetrically with respect to the line segment S connecting the pair of upper and lower protrusions 18, 20.
6, it is preferable that the line segment S connecting the fitting portion 22 and the lock mechanism 24 is disposed symmetrically with respect to the line segment S.

Further, like the interchangeable lens type camera of the first embodiment, it is preferable to dispose each connector by displacing it from the center of a line segment S connecting two coupling portions. That is, in the photographic lens unit 14, it is arranged so as to be displaced upward or downward from the center of the line segment S connecting the pair of upper and lower projecting pieces 18, 20, and in the lens mount 16, it is arranged with the fitting portion 22. It is preferable that the line segment S connecting the lock mechanism 24 is displaced from the center to the upper side or the lower side.

When there are two connectors as described above, as shown in FIG. 5, the connectors may be arranged vertically evenly on a line segment S connecting the two connecting portions. That is, in the taking lens unit 14, the first lens-side connector 5 is placed on the line segment S connecting the pair of upper and lower projecting pieces 18, 20.
8a and the second lens side connector 58b are evenly arranged vertically, and in the lens mount 16, the first body side connector 6 is placed on the line segment S connecting the fitting portion 22 and the lock mechanism 24.
8a and the second body side connector 68b are evenly arranged vertically. Even in this case, when the taking lens unit 14 is rotated, the connectors can be reliably and reliably connected to each other.

In the present embodiment, an example in which two connectors are provided has been described, but a plurality of connectors may be provided. Also in this case, it is preferable that the respective connectors are arranged symmetrically with respect to the line segment S connecting the two connecting portions in the same manner as described above. For example, as shown in FIG. 6, three connectors (first to third lens side connectors 58a to 58c) are installed on the taking lens unit 14, and three connectors (first to third body side connectors) on the lens mount 16. 6
8a to 68c) are installed such that the connectors are arranged symmetrically with respect to the line segment S. As a result, when the taking lens unit 14 is rotated, the connectors can be connected to each other without difficulty and reliably.

FIG. 7 is a block diagram showing the configuration of the third embodiment of the interchangeable lens camera according to the present invention, and FIG. 8 is a schematic diagram showing the configuration of the main part thereof. The same members as those in the first embodiment described above are designated by the same reference numerals, and detailed description thereof will be omitted.

Lens interchangeable camera 80 of the present embodiment
The mechanical connection structure between the taking lens unit 14 and the lens mount 16 is different from that of the interchangeable lens camera 10 of the first embodiment described above.

As shown in FIGS. 7 and 8, a pin 82 and a plate-like locking piece 84 are vertically symmetrical with respect to the photographing optical axis L on the outer periphery of the base end portion of the photographing lens unit 14. There is.

On the other hand, the lens mount 16 is formed with a fitting portion 86 into which the pin 82 of the taking lens unit 14 is fitted at the lower position, and a lock for fixing the locking piece 84 at the upper portion. A mechanism 88 is provided.

The fitting portion 86 is formed in a block shape, and its tip portion is formed so as to project from the front surface of the lens mount 16. Then, a hole 90 into which the pin 82 is fitted is formed on the upper surface of the protruding portion.

On the other hand, the lock mechanism 88 fixes the locking piece 84 by engaging the stopper plate 92 slidably provided in the vertical direction with the locking piece 84. The stopper plate 92 is slidably provided in a guide groove 96 of a guide block 94 provided at an upper portion of the lens mount 16, and is urged downward by a pressing spring 98 connected to an upper end portion thereof. . Guide groove 9
A recess 100 into which the locking piece 84 is fitted is formed in the recess 6, and the recess 100 is opened and closed by vertically moving the stopper plate 92.

When the taking lens unit 14 is attached to the lens mount 16 in the connection structure configured as described above, first, the pin 82 formed on the lower portion of the base end portion of the taking lens unit 14 is attached to the lens mount 16. It is fitted into the hole 90 of the fitting portion 86 formed on the lower side. At this time, the photographic lens unit 14 tilts the tip portion downward with respect to the camera body 12 and slowly rotates the pin 82 into the hole 90 of the fitting portion 86. During the process of rotating the taking lens unit 14, the lens side connector 58 provided on the taking lens unit 14 is fitted into the body side connector 68 formed on the lens mount 16.

When the taking lens unit 14 is rotated, the locking piece 84 provided on the upper end of the base end of the taking lens unit 14 is locked by the locking mechanism 88 provided on the upper part of the lens mount 16. When the locking piece 84 reaches the position of the lock mechanism 88, the stopper plate 92 is slid upward so that the recess 100 is reached.
The locking piece 84 is fitted to. As a result, the end face of the photographic lens unit 14 is brought into close contact with the lens mount 16, and in this state the stopper plate 92 is lowered to close the opening of the recess 100 and the locking piece 84 is locked by the stopper plate 92. As a result, the taking lens unit 14 is locked to the lens mount 16.

Even when the photographic lens unit 14 and the lens mount 16 are mechanically connected using such a connection structure, the photographic lens is the same as the lens interchangeable camera of the first embodiment described above. By rotating the unit 14 to the lens mount 16, it is possible to connect the connectors to each other without difficulty.

Even when the connection structure of the present embodiment is used, it is preferable that the connector is arranged on the line segment S connecting the coupling parts, and more preferably, the connector is installed off the center of the line segment S. Preferably.

Also, in the connection structure of this embodiment, a plurality of connectors can be installed. In this case, it is preferable that the connectors are arranged symmetrically with respect to the line segment S connecting the coupling portions or evenly arranged vertically.

FIG. 9 is a schematic view showing the arrangement of the essential parts of a fourth embodiment of the interchangeable lens camera according to the present invention.
The same members as those in the first embodiment described above are designated by the same reference numerals, and detailed description thereof will be omitted.

In the interchangeable lens type camera of this embodiment, the taking lens unit 14 and the lens mount 16 are connected at three points.

As shown in FIG. 9, the taking lens unit 1
On the outer periphery of the base end portion of 4, a single projecting piece 18 is formed so as to project at a lower position thereof, and a pair of washer members 102, 102 is formed so as to project at an upper position thereof. The pair of washer members 102, 102 are arranged at positions equidistant from the projecting piece, and screws 104, 104 are rotatably attached thereto, respectively.

On the other hand, the lens mount 16 is formed with a fitting portion 22 at the lower position to which the projecting piece 18 of the photographing lens unit 14 is fitted, and at the upper portion, the pair of screws 104, 104. Nut members 106 and 10 to be fitted
6 is formed.

Here, as shown in FIG. 9, in the lens interchangeable camera of the present embodiment, three connectors (first to third lens side connectors 58a to 58c and first to third lens side connectors 58a to 58c) are provided on the taking lens unit 14 and the lens mount 16, respectively. First to third body side connectors 68a to 68c) are installed. Each connector has a triangle T formed by a line segment U that connects three coupling parts.
Are arranged so as to be even with respect to the center of gravity O.

In the lens interchangeable type camera constructed as described above, when the taking lens unit 14 is mounted on the lens mount 16, first, the taking lens unit 14 is used.
Mount the projection 18 formed on the lower part of the base end of the lens mount 1
6 is fitted into the hole 26 of the fitting portion 22 formed on the lower side. At this time, the photographing lens unit 14 tilts the tip end portion downward with respect to the camera body 12 and slowly inserts the protrusion 18 into the hole 26 of the fitting portion 22. In the process of rotating the taking lens unit 14, the lens side connector 58 provided on the taking lens unit 14 is
Body side connector 68 formed on the lens mount 16
Be inserted into. Then, when the end face of the photographic lens unit 14 is brought into close contact with the lens mount 16, the screws 104, 104 of the photographic lens unit 14 are screwed into the nut members 106, 106 formed on the lens mount 16. As a result, the taking lens unit 14 is locked to the lens mount 16.

Even if the structure is fixed at a plurality of places as described above, the taking lens unit 14 is attached to the lens mount 16 similarly to the lens interchangeable camera of the first embodiment described above.
It is possible to connect the connectors to each other without difficulty by the rotating operation to be attached to.

In this embodiment, the fixing is carried out at two points, but it may be fixed at a plurality of points. In this case, it is preferable that the connectors are arranged so as to be even with respect to the center of gravity of a polygon formed by a line segment connecting a plurality of coupling parts, and this makes it impossible for the photographing lens unit 14 to be rotated. Without fail, the connectors can be reliably connected to each other.

[0068]

As described above, according to the present invention,
Engage the engaging part formed on the shooting lens unit with the engaged part formed on the camera body, and rotate the shooting lens unit toward the camera body side to connect the connectors securely and securely. can do. Also,
As a result, a large connector having a large number of contacts can be used.

[Brief description of drawings]

FIG. 1 is a perspective view showing an external configuration of a first embodiment of an interchangeable lens type camera.

FIG. 2 is a schematic diagram showing a configuration of a main part of a first embodiment of an interchangeable lens type camera.

FIG. 3 is a block diagram showing the internal structure of the first embodiment of the interchangeable lens type camera.

FIG. 4 is a schematic diagram showing a configuration of a main part of a second embodiment of an interchangeable lens type camera.

FIG. 5 is a schematic diagram showing a configuration of a main part of another embodiment of the interchangeable lens camera.

FIG. 6 is a schematic diagram showing a configuration of a main part of another embodiment of the interchangeable lens camera.

FIG. 7 is a block diagram showing an internal structure of a third embodiment of an interchangeable lens type camera.

FIG. 8 is a schematic diagram showing a configuration of a main part of a third embodiment of an interchangeable lens type camera.

FIG. 9 is a schematic diagram showing a configuration of a main part of a fourth embodiment of an interchangeable lens type camera.

[Explanation of symbols]

10 ... interchangeable lens type camera, 12 ... camera body, 14
… Shooting lens unit, 16… Lens mount, 18,
20 ... Projection piece, 22 ... Fitting part, 24 ... Lock mechanism, 26 ...
Hole, 28 ... Lock claw, 30 ... Rotating shaft, 32 ... Support piece, 3
4 ... Hook part, 36 ... Groove, 38 ... Extension spring, 40 ... Photographing lens, 41 ... Lens drive part, 42 ... Aperture, 44 ... Shutter, 46 ... Solid-state image sensor (CCD), 48 ... Analog processing circuit, 50 ... Timing generator, 52 ... Electronic volume circuit, 54 ... EEPROM, 56 ... ROM, 5
8, 58a, 58b, 58c ... Lens side connector, 60
... Signal processing circuit, 62 ... Central processing unit (MPU), 64
... memory card, 66 ... card connector, 68, 68
a, 68b, 68c ... Body side connector, 80 ... Lens interchangeable camera, 82 ... Pin, 84 ... Locking piece, 86 ... Fitting part, 88 ... Lock mechanism, 90 ... Hole, 92 ... Stopper plate, 94 ... Guide Block, 96 ... Guide groove, 98
... Pressing spring, 100 ... Recess, 102 ... Washer member, 104
... Screw, 106 ... Nut member

Claims (8)

[Claims] 1. An interchangeable lens type camera, wherein a taking lens unit is detachably attached to a camera body, and the taking lens unit and the camera body are electrically connected to each other via a connector. The lens unit has an engaging portion that is rotatably engaged with an engaged portion formed on the camera body on one side across the optical axis, and a lens unit formed on the camera body on the other side. A lens exchange characterized by having a fixing portion fixed to a fixing portion, wherein the connector is connected when the engaging portion is engaged with the engaged portion and rotated toward the camera body side. Expression camera. 2. The interchangeable lens camera according to claim 1, wherein the connector is arranged between the engaging portion and the fixing portion. 3. The connector according to claim 1, wherein the connector is arranged between the engaging portion and the fixing portion and at a position near the engaging portion or the fixing portion. Interchangeable lens camera. 4. The lens exchange according to claim 1, 2 or 3, wherein the taking lens unit has an image pickup means, and an image signal from the image pickup means is transmitted to the camera body by the connector. Expression camera. 5. The connector transmits an image signal from the image pickup means to the camera body and a lens control signal from the camera body to the taking lens unit. The interchangeable lens camera described. 6. A connector for transmitting an image signal from the image pickup means to the camera body and a connector for transmitting a lens control signal from the camera body to the photographing lens unit are separately provided. The interchangeable lens type camera according to claim 4. 7. A plurality of the connectors are provided, and the plurality of connectors are arranged evenly on the left and right with respect to a line segment connecting the fixing portion and the engagement portion, or vertically on the line segment. The interchangeable lens type camera according to claim 1. 8. A plurality of the connectors are provided, a plurality of the fixing portions are provided, and the plurality of fixing portions are evenly arranged with respect to a center of gravity of a polygon formed by a line segment connecting the plurality of fixing portions and the engaging portion. The interchangeable lens type camera according to claim 1, wherein a connector is arranged.