JPH1031262A - Camera provided with dustproof cover - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the damage of the side surface of a lens barrel including a photographic optical system without continuously displacing the photographic optical system in the state in which the photographic optical system and a dustproof cover abute on each other by stopping the movement of the photographic optical system when the dustproof cover is operated to a closed position during the extending operation of the photographic optical system. SOLUTION: This camera is provided with the photographic optical system 3 which can be displaced between an extended position and a collapsed position and the dustproof cover 2 which can be manually operated from a closed position state where the cover 2 is retreated from the surface of a the photographic optical system 3 to a closed state for covering the optical system 3. A switch SW1 is turned on or off according to the opened/closed states of the dustproof cover 2 to detect the fact that manual operation from the opened state to the closed state is executed. Further, the switch SW1 controls the rotational direction, etc., of a motor for displacing the optical system 3. In such a case, when the SW1 detects the fact that the cover 2 is operated while the optical system 3 is moved in an extending direction, a photographic optical system driving means is controlled to stop the movement of the optical system 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention has a dustproof cover displaceable between a closed position for covering a photographing optical system and an open position for exposing the photographing optical system, and the photographing optical system extends and retracts in order to change the optical action. Regarding possible cameras.

[0002]

2. Description of the Related Art Conventionally, there is a camera disclosed in Japanese Patent Application Laid-Open No. 58-145930 as a camera in which a photographing optical system can be extended and retracted to change the optical action. The photographing lens of this camera has a variable focal length as an optical effect, and is extended to a first focal length extended from the front surface of the camera to a first focal length, and to a second focal length extended from the extended position. It is possible to be displaced to a different retraction position. In order to displace the taking lens, the focal length selecting means may be operated. When the focal length selecting means is operated to the first state, the taking lens is positioned at the extended position,
When operated in the second state, the taking lens is positioned at the retracted position. With such a configuration, there is an advantage that the focal length of the taking lens can be switched by a simple operation. However, since the amount of extension of the photographing lens is larger than that of a single focus camera, it is inconvenient to carry the camera in the extended state.

[0003] In recent years, various cameras have been put on the market that are provided with a dust-proof cover that can be displaced between a closed position for covering the taking lens and an open position for exposing the camera body to improve portability and storage. Considering that this dustproof cover is provided on the variable focal length camera, it is conceivable to prepare a dustproof cover that can cover the taking lens at the extended position, but this will further increase the size. No practicality. In order to avoid the size increase, it is sufficient to prepare a dust-proof cover that can be closed only when the photographing lens is at the retracted position, but the following problems occur at the start of photographing and at the time of storage. That is, at the start of photographing, when photographing is performed with the photographing lens extended, it is necessary to open the dustproof cover and then set the focal length selecting unit to the first state.
The result was a lack of quick shooting. At the time of storage, if the taking lens is in the extended position, it is necessary to perform an operation of setting the focal length selecting means to the second state and displacing the taking lens to the retracted position before closing the dustproof cover, which is troublesome. .

[0004]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a camera with a dustproof cover in which the optical action of a photographic lens is excellent in portability, operability, and quick shooting.

[0005]

SUMMARY OF THE INVENTION In order to achieve this object, a camera with a dustproof cover according to the present invention is provided with a feeding position which is extended from the front surface of the camera and has an optical function, and which is further extended from the position and has another optical function. A photographing optical system that can be displaced at least to a retracting position that plays, a dustproof cover that can be displaced between a closed position that covers the photographing optical system and an open position that exposes the photographing optical system, and a position that can always be operated regardless of the position of the dustproof cover. An optical action selecting means disposed and capable of taking at least a first operation state for positioning the photographing optical system at the extension position and a second operation state for positioning the imaging optical system at the extension position; When the dustproof cover is in the closed position, the photographing optical system is positioned in the retracted position or a position further retracted than the position regardless of the operation state of the optical action selecting means, and is in the open position. And optical system driving means for positioning the photographing optical system at the extension position or the extension position in accordance with the operation state of the optical action selection means.

[0006]

Embodiments of the present invention will be described below with reference to the drawings. The present embodiment is a camera having a variable focal length as an optical action of a photographing optical system. 1 to 3 show plan views of one embodiment of the present invention. In each of the drawings, a dustproof cover 2 is provided on the front surface of the camera body 1 so as to be displaceable in the horizontal direction in the figure, and a photographic optical system 3 is displaceable in the vertical direction in the figure, that is, extendable and retractable. On the upper surface of the camera body 1, a focal length selecting member 4 for switching the focal length of the photographing lens is provided so as to be always operable.

In FIG. 1, the dust cover 2 is in an open position. The focal length selection member 4 is located at a telephoto position where the focal length of the photographing optical system 3 is set to a telephoto region, and faces the letter “T” attached to the upper surface of the camera body 1. The photographing optical system 3
It is located at the extended position protruding from the front surface of the dust-proof cover 2 and forms a combined optical system with a later-described sub-photographing optical system 26 (shown in FIG. 5) inserted into the photographing light beam, and has a focal length of a telephoto region. .

In FIG. 2, the dust cover 2 is in an open position. The focal length selection member 4 is located at a wide-angle position where the focal length of the photographing optical system 3 is set to a wide-angle region, and faces the character “W” attached to the upper surface of the camera body 1. At this time, the photographing optical system 3 is at the retracted position retracted into the camera body 1 from the extended position, and the sub-photographing optical system 26 is retracted from the photographing light beam. The imaging optical system 3 has a focal length in a wide-angle region.

In FIG. 3, the dust cover 2 is in the closed position and covers the photographing optical system 3. At this time, the photographing optical system 3
Is at the retracted position even though the focal length selecting member 4 is at the telephoto position. When the dust cover is in this closed position, an indicator 2a attached to the upper surface of the dust cover 2 to make it possible to visually recognize from the upper part of the camera that shooting is not possible.
Is opposed to the character “OFF” on the upper surface of the camera body 1.

A switch Sw in which a sliding contact piece is fixed to the dustproof cover 2 is provided in a part of the camera body of FIG.
1 is shown. The switch Sw1 is turned on when the dust cover 2 is at the open position, and turned off when displaced from the open position to the closed position. The switch Sw1 is connected to a motor 12 (see FIGS. 4 to 6) for displacing the photographing optical system 3.
) And the power supply to a later-described shutter control circuit 30 (shown in FIG. 6).

A switch Sw2 in which a sliding contact piece is fixed to a focal length selecting member 4 is shown in a part of the camera body of FIG. The switch Sw2 is switched according to the position of the focal length selection member 4, and controls the rotation direction of a motor 12 described below that displaces the photographing optical system 3. The switch Sw2 is turned on when the focal length selection member 4 is at the telephoto position, and turned off when it is at the wide angle position.

FIG. 4 is a perspective view of a displacement mechanism which is a mechanical component of the optical system driving means of this embodiment. The figure shows a state when the photographing optical system is at the extended position. An opening 10a through which a photographing light beam passes is provided at the center of the base plate 10, and is indicated by a chain line in front of the opening 10a. The aperture / shutter device 11 and the photographing optical system 3 are fixedly provided. A motor 12 is fixedly mounted on the upper back surface of the base plate 10, and a bevel gear 12a (shown in FIG. 5) is fixedly mounted at the end of a rotating shaft (shown in FIG. 5) parallel to the base plate 10. A bevel gear 13 supported by the base plate 10 meshes with the bevel gear 12a, and a spur gear portion of the gear 13 meshes with a gear 14 also supported by the base plate.
A through hole is formed in the center of the gear 14, and a female screw whose center is the rotation center of the gear 14 is cut in this through hole. An external thread cut by the guide shaft 15 is screwed into the internal thread. The guide shaft 15 extends in the direction of the optical axis. The end is fixed to the substrate 1a of the camera body, and the end thereof penetrates through the through hole of the base plate 10 in a loosely fitted state. Two guide shafts 16 and 17 extending in the optical axis direction are also implanted on the substrate 1a. The guide shaft 16 loosely penetrates through the through hole 10c of the projecting portion 10b and the through hole 10d of the base plate 10 projecting from the back surface of the base plate. A spring receiving flange 16a is fixed in the middle of the guide shaft 16, and a spring 18 is disposed between the flange 16a and the overhang 10b. The spring 18 connects the base plate 10 to the substrate 1 via the overhang 10b.
Pressing in the direction of “a” removes backlash generated at the threaded portion between the gear 14 and the guide shaft 15. The guide shaft 17 penetrates the slot 10 e of the base plate 10 in a loosely fitted state. With such a configuration, when the motor 12 rotates, the base plate 10, the photographing optical system 3 fixed thereto, and the aperture / shutter device 11 are guided by the three guide shafts 15 to 17, so that the extended position and the extended position are determined. Is displaced in the optical axis direction.

A printed board 19 is fixed on the right side of the base plate 10. Conductive lands 19a to 19c are provided on the surface of the printed circuit board 19, and three sliding contact pieces 20 to 22 fixed to the camera body can slide on the conductive lands 19a to 19c, respectively. The switch Sw3 is constituted by the sliding contact piece 20 and the conductor land 19a, the switch Sw4 is constituted by the sliding contact piece 21 and the conductor land 19b, and the switch Sw5 is constituted by the sliding contact piece 22 and the conductor land 19c. When the photographing optical system 3 is at the extension position, the switch Sw3 is at the extension position.
5 is OFF when it is between the feeding position and the feeding position
Becomes The switches Sw3 and Sw4 function as limit switches, and cut off the power supply to the motor 12 when the photographing optical system 3 is displaced to the retracted position or the extended position. Switch sw
Reference numeral 5 denotes a switch for preventing the shutter from being released when the photographing optical system 3 is located at a position intermediate between the above-mentioned positions and a subject image cannot be formed on the film surface. 30 is a switch for cutting off power supply to 30 (shown in FIG. 6).

The film 23 is provided between the base plate 10 and the substrate 1a. FIG. 5 is a front view of the sub-photographing optical system mounting / dismounting mechanism disposed on the back surface of the base plate 10. In the figure, a reduction gear train 24 and a holder 25
Are supported, and the holder 25 has a sub-photographing optical system 26.
Is held. Input gear 24a of reduction gear train 24
Meshes with the spur teeth of the bevel gear 13,
The final gear 24b of the reduction gear train 24 and the holder 25 are coaxial, and both are connected via a torsion spring 27.

The reduction ratio of the reduction gear train 24 is set as follows. That is, when the photographing optical system 3 is at the extended position, the sub-photographing optical system 26 is placed at the insertion position (shown by a solid line) inserted into the photographing light beam. 26 is pivoted to a retracted position (shown by a two-dot chain line) retracted from the photographing light beam.

The sub-photographing optical system 26 forms a composite optical system with the photographing optical system 3 at the extended position and changes the focal length to a telephoto region. FIG. 6 shows a motor control circuit which is an electrical component of the optical system driving means of this embodiment. In the figure, the motor 12 is driven by three power supply paths.

The first path is the positive switch S of the power source E
w3-switch Sw7a-motor 12-switch Sw7
b—path of the negative electrode of the power supply E. When power is supplied along this path, the motor 12 rotates, displacing the photographing optical system 3 to the retracted position and displacing the sub-photographing optical system 26 to the retracted position. The second path is the positive pole of the power supply E-switch Sw4-switch Sw8a-motor 12-switch S
w8b—the path of the negative electrode of the power supply E. By supplying power through this path, the motor 12 rotates in the direction opposite to that in the first path, displacing the photographing optical system 3 to the extended position and displacing the sub-photographing optical system 26 to the insertion position. .

Here, the switches Sw7a, Sw7b, Sw
8a and Sw8b correspond to a logic circuit 40 described later (shown in FIG. 7).
Is a semiconductor switch whose opening and closing are controlled by the switch. The third path is a path connecting the automatic focus adjustment / shutter control circuit 30 and the motor 12, and the output of this control circuit causes the motor 12 to rotate forward and reverse to move the photographing optical system back and forth in the optical axis direction. Match the focus.

Switches Sw1a and Sw5 connected in series are inserted in the power supply path of the control circuit 30. The switch Sw1a is a semiconductor switch controlled by the switch Sw1 and opened and closed in the same phase as the switch Sw1a.
It is ON only when the dust cover 2 is in the open position. The switch Sw5 is turned ON only when the photographing optical system 3 is at the extended position and the retracted position (when the sub-optical system 26 is at the retracted position and the inserted position). These prevent the shutter from being released when the dust cover 2 and the photographing optical systems 3 and 26 are at positions inappropriate for photographing.

FIG. 7 shows a logic circuit 40 for controlling the operation of the motor control circuit of FIG. This logic circuit 40
Are a pair of input terminals 40a and 40b and a pair of output terminals 4
0c and 40d. The input terminal 40a is between the switch Sw1 and the ground resistor, the input terminal 40b is between the switch Sw2 and the ground resistor, the output terminal 40c is the control terminal of the switches Sw7a and Sw7b, and the output terminal 40d is the switch Sw8a. 8b. The input terminal 40a is connected to the switch Sw
When the switch 1 is ON, that is, when the dust cover 2 is in the open position, the level is high, and when the switch Sw1 is OFF,
That is, when the dust cover 2 is in the closed position, the level becomes the Low level. When the switch Sw2 is ON, the input terminal 40b
That is, when the focal length selecting member 4 is at the telephoto position, Hig
When the switch Sw2 is OFF, that is, when the focal length selecting member 4 is at the wide-angle position, the level becomes Low. The output terminal 40c turns on the switches Sw7a and Sw7b when the signal is at the high level, and turns off both when the signal is at the low level. The output terminal 40d turns on the switches Sw8a and Sw8b at the time of the High level,
It is turned off both at the Low level.

The input terminal 40a of the logic circuit 40 is connected to one input terminal of the exclusive OR circuit 40e and one input terminal of the NOR circuit 40f. The input terminal 40b is connected to the other input terminal of the exclusive OR circuit 40e and the other input terminal of the NOR circuit 40f. Output terminals of both circuits 40e and 40f are connected to both input terminals of the OR circuit 40g, respectively. The output terminal of the OR circuit 40g is the output terminal 40c of the logic circuit 40.
And the input terminal of the inverter 40h. The output terminal of the inverter 40h is connected to the output terminal 40d of the logic circuit 40.
It is connected to the.

Next, the operation of this embodiment will be described with reference to the following table. Table 1 shows the position of the dust cover 2 and the focal length selecting member 4.
Switch S which switches according to these positions
w1, Sw2 state, input terminal 40a of logic circuit 40,
40b, level of output terminals 40c and 40d, switch S
The relationship between the states of w7a, Sw7b, Sw8a, and Sw8b and the position of the taking lens 3 is summarized.

[0023]

[Table 1]

[1] As shown in FIG. 1, when the dust cover 2 is in the open position, the focal length selection member 4 is in the telephoto position, and the photographing optical system 3 is already in the extended position, the switches Sw1 and Sw are switched.
2 are both ON, the input terminals 40a and 40b of the logic circuit 40 are both at the High level. The output terminals of the exclusive OR circuit 40e and the NOR circuit 40f are at the low level, and the output terminal of the OR circuit 40g is also at the low level. The output terminals 40c and 40d of the logic circuit 40 are at the Low and High levels, respectively. Thereby, the switches Sw7a and Sw7b shown in FIG. 6 are turned off, and the switches Sw8a and Sw8b are turned on. Since the photographing optical system 3 is at the extended position, as shown in FIG.
3, Sw4 and Sw5 are ON, OFF and ON respectively. Since the switches Sw7a and Sw7b are OFF, the first path is not formed, and since the switch Sw4 is OFF, the second path is not formed. Accordingly, the photographing optical system 3 is stationary at the extension position, and the sub-photographing optical system 26 is stationary at the insertion position.
The focal length becomes a telephoto area. Also, the switch Sw1
Since both a and Sw5 are ON, the automatic focus adjustment and shutter control circuit 30 is in an operable state, and photographing with the telephoto optical system is possible. FIG. 1 shows the state at this time. [2] When the focal length selection member 4 is switched from the state shown in FIG. 1 to the wide angle position, the switch Sw2 is turned off, and the input terminal 40b of the logic circuit 40 becomes Low level. The output terminal of the exclusive OR circuit 40e is Hig
h level, the output terminal of the OR circuit 40g is Hig
The output terminal 40c of the logic circuit 40,
0d is inverted to High and Low levels, respectively. Thus, the switches Sw7a and Sw7b shown in FIG. 6 are turned on, and the switches Sw8a and Sw8b are turned off. Since the photographing optical system 3 is at the extended position, the switches Sw3 to Sw5 are ON, OFF, and ON, respectively, as shown in FIG. Since the switches Sw7a and Sw7b are ON, the first path is formed, and the motor 12 starts. Therefore, the photographing optical system 3 starts to be displaced from the extended position toward the retracted position, and the sub-imaging optical system 26 begins to be displaced toward the retracted position. When the photographing optical system 3 reaches the retracted position, the switches Sw3 to Sw5 shown in FIG.
FF, ON, ON state. Switch Sw3 is OF
At F, the first path is cut off, and the power supply to the motor 12 is stopped. Therefore, the photographing optical system 3 is at the retracted position,
Since the sub-photographing optical systems 26 are respectively stopped at the retracted position,
The photographing optical system includes only the photographing optical system 3 and has a focal length in a wide-angle region. Also, the switches Sw1a and Sw5
Since both are ON, the automatic focus adjustment and shutter control circuit 30 is in an operable state, and photographing with a wide-angle optical system is possible. FIG. 2 shows the state at this time. [3] When the dustproof cover 2 is displaced from the open position to the closed position from the state shown in FIG. 1, the switch Sw1 is turned off, and the input terminal 40a of the logic circuit 40 becomes Low level. The output terminal of the exclusive OR circuit 40e is Hig
h level. The following operation is the same as in [2], even though the focal length selecting member 4 is at the telephoto position, the photographing optical system 3 is displaced from the extended position to the retracted position, and the sub-imaging optical system 26 is moved to the insertion position. To the retreat position. Therefore, the dust cover 2 can be displaced to the closed position. When the dust cover 2 reaches the closed position, the switch Sw
Since the switch Sw1a having the same phase as 1 is turned off, the power supply to the automatic focus adjustment / shutter control circuit 30 is cut off, and photographing becomes impossible. FIG. 3 shows the state at this time. [4] When the dust cover 2 is displaced to the closed position from the state shown in FIG. 2, the switch Sw1a in the same phase as the switch Sw1
Is turned off, the power supply to the automatic focus adjustment and shutter control circuit 30 is cut off, and photographing becomes impossible. [5] When the focal length selection member 4 is switched from the state shown in FIG. 2 to the telephoto position, the switch Sw2 is turned on, and both the input terminals 40a and 40b of the logic circuit 40 are set to Hig.
h level. Since the output terminals of the exclusive OR circuit 40e and the NOR circuit 40f are both at the Low level,
The output terminal of the OR circuit 40g is inverted to Low level, and the output terminals 40c and 40d of the logic circuit 40 are Low and H, respectively.
Invert to igh level. As a result, the switches Sw7a and Sw7b shown in FIG.
a and Sw8b are ON. Since the photographing optical system 3 is at the retracted position, the switches Sw3, Sw4, and Sw5 are OFF, ON, and ON, respectively. Switch Sw8
Since a and Sw8b are ON and the switch Sw4 is ON, the second path is formed, and the motor 12 starts. Accordingly, the photographing optical system 3 starts to be displaced from the retracted position toward the extended position, and the sub photographing optical system 26 begins to be displaced toward the inserted position. When the photographing optical system 3 reaches the extension position, the switches Sw3, Sw4, Sw5 as shown in FIG.
Are turned ON, OFF, and ON, respectively. When the switch Sw4 is turned off, the second path is cut off,
Power supply to the motor 12 is stopped. Therefore, as shown in FIG. 1, the photographing optical system 3 is stationary at the extension position, and the sub-photographing optical system 26 is stationary at the insertion position, and a composite optical system is formed. Also, the switch Sw1
Since both a and Sw5 are ON, the automatic focus adjustment and shutter control circuit 30 is in an operable state, and photographing with the telephoto optical system is possible. [6] When the dust cover 2 is displaced toward the open position from the state shown in FIG. 3, the switch Sw1 is turned on,
The input terminals 40a and 40b of the logic circuit 40 are both at the High level. The following is the same as the operation described in [5].

In the above embodiment, when the dust cover 2 is in the closed position, the photographing optical system 3 is set in the retracted position. However, in order to reduce the size of the camera when the dust cover is closed, The photographing optical system can be displaced to a position further retracted than the retracted position, and the photographing optical system can be displaced to this further retracted position in conjunction with the operation of displacing the dust cover to the closed position. May be.

In the present specification, the optical action of the photographing optical system means a change that gives a visual change to a photographing screen. In both of the above embodiments, the focal length is given as an optical action, and the focal length is changed into two stages of telephoto and wide angle. However, the present invention is not limited to this. Can be Further, the mode of the change of the optical action may be stepwise or continuous, which is achieved by stepwise or continuous extension and retraction of the optical system.

In the above embodiment, the focal length selecting member 4 as the optical action selecting means and the two operation states of the telephoto position and the wide angle position can be taken, but the present invention is not limited to this. When the optical action of the photographing optical system changes to two or more states, the number of operation states increases according to the number. For example, when the optical action changes continuously, the operating state of the operating means may be switched continuously.

In the above embodiment, the driving of the photographing optical system is performed by an electric mechanism. However, the present invention is not limited to this, and the operating force applied to the optical action selecting means or the operating force applied to the dustproof cover. May be used as a driving force to mechanically drive the photographing optical system.

[0029]

As described above, in the camera with the dustproof cover according to the present invention, when the dustproof cover is in the closed position, the photographing optical system can be moved to the retracted position or the retracted position regardless of the operation state of the optical action selecting means. The photographing optical system is positioned at the extended position or the retracted position in accordance with the operation state of the optical action selecting means when the optical operation selecting means is in the open position. Quick response to shooting opportunities.

[Brief description of the drawings]

FIG. 1 is a plan view of an embodiment of the present invention.

FIG. 2 is a plan view of one embodiment of the present invention.

FIG. 3 is a plan view of one embodiment of the present invention.

FIG. 4 is a perspective view of a displacement mechanism of the photographing optical system of the embodiment.

FIG. 5 is a front view showing a mounting / dismounting mechanism of the sub-photographing optical system of the embodiment.

FIG. 6 is a diagram of a motor control circuit for displacement of the photographing optical system of the embodiment.

FIG. 7 is a logic circuit diagram for controlling the operation of the motor control circuit.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Camera main body 2 Dustproof cover 3, 26 Photographing optical system 4 Optical action selection means 10-19, switches Sw1-Sw5, Sw7a, Sw
7b, Sw8a, Sw8b, 40 Optical system driving means

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[Procedure amendment]

[Submission date] May 20, 1997

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Claims

[Correction method] Change

[Correction contents]

[Claims]

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0002

[Correction method] Change

[Correction contents]

[0002]

2. Description of the Related Art Conventionally, there is a camera disclosed in Japanese Patent Application Laid-Open No. 58-145930 as a camera in which a photographing optical system can be extended and retracted to change the optical action. The photographing optical system of this camera has a variable focal length as an optical action, and is extended from a front surface of the camera to a first focal length, and extended from the extended position to a second focal length. And can be displaced. In order to displace the photographing optical system, the focal length selecting means may be operated. When the focal length selecting means is operated to the first state, the photographing optical system is positioned at the extended position,
When operated in the second state, the photographing optical system is positioned at the retracted position. With such a configuration, there is an advantage that the focal length of the photographing optical system can be switched by a simple operation. However, it is inconvenient to carry the camera in the extended state because the amount of extension of the photographing optical system is larger than that of a single focus camera.

[Procedure amendment 3]

[Document name to be amended] Statement

[Correction target item name] 0003

[Correction method] Change

[Correction contents]

In recent years, various types of cameras have been released which are provided with a dustproof cover capable of being displaced between a closed position for covering the photographing optical system and an open position for exposing the camera to improve the portability and storage. . Considering the provision of a dustproof cover that can be displaced between a closed position and an open position by manual operation in a camera that is extended by an imaging optical system, the following problem has occurred. That is, the dustproof cover may be operated to the closed position during the extension operation of the photographing optical system.
As a result, the photographing optical system and the dust cover come into contact with each other, and if the photographing optical system continues to be displaced as it is, the side surface of the lens barrel including the photographing optical system will be damaged.

[Procedure amendment 4]

[Document name to be amended] Statement

[Correction target item name] 0004

[Correction method] Change

[Correction contents]

[0004]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a camera which has a measure against the above-mentioned disadvantages.

[Procedure amendment 5]

[Document name to be amended] Statement

[Correction target item name] 0005

[Correction method] Change

[Correction contents]

[0005]

SUMMARY OF THE INVENTION The present invention has been made in order to achieve the aforementioned object.
By the following means. That is, in a camera with a dustproof cover, a photographing optical system that can be displaced between an extended position and a retracted position (the photographing optical system 3 corresponds to a photographing optical system of the present invention in an embodiment described later), and the photographing optical system. A dustproof cover that can be manually operated from an open state retracted from the front to a closed state covering the front of the photographing optical system (the dustproof cover 2 corresponds to the dustproof cover of the present invention in an embodiment described later), and the dustproof cover is in the open state. And a detecting means (in the embodiment described later, the switch Sw1 corresponds to the detecting means of the present invention) for detecting that the manual operation has been performed to the closed state, and while the photographing optical system is moving in the extending direction, A photographing optical system driving unit (in a later-described embodiment, a power supply E, a motor 12, and a logic unit) that stops the movement of the photographing optical system in response to the detection unit detecting that the dust cover has been operated. Road 40, switch SW7a, SW7b, SW8a, dust cover with a camera, characterized in that Sw8b is provided and equivalent) in a taking optical system driving means of the present invention. In the above description, the correspondence between the components of the present invention and the components of the embodiments described later is described. This is to make it easier to understand the correspondence between the components of the present invention and the embodiments described below, and does not mean that the present invention is limited to only the configurations of the embodiments described below.

[Procedure amendment 6]

[Document name to be amended] Statement

[Correction target item name] 0029

[Correction method] Change

[Correction contents]

[0029]

According to the present invention, when the dust cover is operated to the closed position during the extension operation of the photographing optical system, the movement of the photographing optical system is stopped. Therefore, the photographing optical system does not continue to be displaced while the photographing optical system and the dust cover remain in contact with each other, and the side surface of the lens barrel including the photographing optical system is not damaged.

Claims (1)

[Claims] An imaging optical system which is at least displaceable to a feeding position extended from the front surface of the camera and exhibiting an optical action, and a retracted position which is extended from the position and exerts another optical action; A dust cover that can be displaced between a closed position that covers the photographing optical system and an open position that exposes the photographing optical system, and a dustproof cover that is disposed at a position that can always be operated irrespective of the position of the dustproof cover, and positions the photographing optical system at the extension position. (1) an optical operation selecting means capable of at least taking an operation state of (1) and a second operation state for positioning the photographing optical system at the retracted position; and (3) an optical operation selecting means when the dustproof cover is at the closed position. Regardless of the operation state, the photographing optical system is positioned at the retracted position or a position further retracted from the position, and when in the open position, the photographing optical system is moved according to the operation state of the optical action selecting means. A camera with a dust-proof cover, comprising: an optical system driving means positioned at the extension position or the extension position.