JP2002090856A - Camera - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a thin camera capable of switching the angle of view. SOLUTION: Plural lens barrel parts 2a to 2c, having different angle of view are attached to a moving body 4 which is freely moving with respect to an image pickup part 3 at prescribed intervals, and the lens barrel part provided to be interposed in an optical path to the image pickup part 3 is switched by making the moving body 4 move. By adopting the lens barrel part 2a to 2c, the angle of view can be switched, even without introducing the principle of zoom lens barrel, and thinning of the camera is realized.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a camera provided with a mechanism capable of changing the angle of view while suppressing the total optical length.

[0002]

2. Description of the Related Art Japanese Patent Application Laid-Open No. 7-318849 is an example of a camera capable of reducing the overall optical length and reducing the thickness of the camera.

[0003]

However, Japanese Patent Application Laid-Open No. 7-3
With the technique of 18849, the angle of view cannot be changed. Therefore, if an attempt is made to implement the angle-of-view changing function by introducing the same principle as that of a widely used zoom lens barrel, the air space between lenses must be changed in order to change the angle of view. The total length of the camera becomes longer than that of the single focus optical system, which impairs the merit of making the camera thinner.

[0004] The pinhole camera has a trade-off with the merit that the optical system is relatively simple.
Optical characteristics such as aberrations such as image distortion and peripheral light amount ratio are inferior to ordinary optical systems. Moreover, when the angle of view changes, these optical characteristics generally change.

Further, even when a pinhole optical section is used as the lens barrel, there is a problem that the quality of a read image changes when the angle of view is switched. An object of the present invention is to provide a camera which can change the angle of view while being thin.

It is another object of the present invention to provide a camera in which the quality of a read image is stable even when the angle of view is switched, even when a pinhole optical unit is used as the lens barrel.

[0007]

According to the present invention, there is provided a camera comprising a movable body movable with respect to an image pickup unit, and a plurality of lens barrels having different angles of view and attached to the movable body at predetermined intervals. Wherein the movable body is moved to replace a lens barrel interposed in an optical path to the imaging unit.

According to this configuration, the angle of view can be switched without introducing the principle of the zoom lens barrel, and a reduction in thickness can be realized.

[0009]

A camera according to a first aspect of the present invention comprises a movable body movable with respect to an image pickup unit and a plurality of lens barrels having different angles of view and attached to the movable body at predetermined intervals. And a lens unit, which is configured to move the moving body to replace a lens-barrel interposed in an optical path to the imaging unit.

According to a second aspect of the present invention, there is provided a camera, comprising: a rotating body rotatably attached to an image pickup unit; and a plurality of lens barrels attached to the rotating body at different angles of view and at predetermined intervals. And a configuration in which the rotating body is rotated to replace a lens barrel interposed in an optical path to the imaging unit.

According to a third aspect of the present invention, there is provided the camera according to the second aspect, further comprising a position detecting means for detecting a stop position of the rotating body, and any one of the plurality of lens barrels based on an output of the position detecting means. An arithmetic processing unit is provided for identifying whether or not the lens barrel is interposed in the optical path to the imaging unit and controlling the signal processing of the output signal of the imaging unit.

According to a fourth aspect of the present invention, in the camera of the third aspect, the arithmetic processing unit is configured to switch an aberration correction processing characteristic or a luminance correction processing characteristic according to a lens barrel in use. Features.

According to a fifth aspect of the present invention, there is provided the camera according to the second aspect, further comprising a light-shielding member for closing a gap between the imaging unit and the emission side end of the lens barrel in use. I do. The camera according to claim 6 of the present invention is the camera according to claim 2, wherein the imaging range of the imaging unit is made larger than the effective imaging range of the lens barrel unit, and the output of the imaging unit is read to perform signal processing to enable effective imaging. An arithmetic processing device for cutting out only data in the image range is provided.

According to a seventh aspect of the present invention, in the camera according to the sixth aspect, the data of the effective imaging range is cut out by the arithmetic processing unit and has an opening corresponding to the size of the effective imaging range of the lens barrel. A mask is set, the imaging range of the imaging unit is scanned with this mask, the sum of the luminance values in the mask at each position is calculated, and the mask range at the position where the sum of the luminance values is the maximum is the effective imaging range. It is characterized by being configured to be cut out.

In a camera according to an eighth aspect of the present invention, in the second aspect, the image pickup section, the rotating body and the plurality of lens barrels are incorporated in a housing, and a finder window is formed in the rotating body. A light-transmitting window for an eyepiece is formed in the housing corresponding to the finder window.

According to a ninth aspect of the present invention, there is provided the camera according to the eighth aspect, wherein the size of the finder window is changed according to the angle of view of the lens barrel. The camera according to claim 10 of the present invention is the camera according to claim 2, wherein the image pickup unit is disposed on the inner bottom of the flat casing with the light receiving surface facing upward,
A rotating disk in which the rotating body rotates in a posture parallel to the bottom of the housing; the lens barrel is attached to a surface of the housing of the disk which faces the bottom, and the light receiving surface of the imaging unit is rotated by rotating the disk; The optical system is characterized in that the lens barrel portion interposed in the optical path to the optical path is replaced.

[0017] In a camera according to an eleventh aspect of the present invention, in the second aspect, the imaging unit is disposed on the inner bottom of the flat casing with the light receiving surface facing upward, and the rotating body is provided on the casing. A ring whose inner peripheral surface rotates in a posture parallel to the bottom. The lens barrel is attached to the inner peripheral surface of the ring, and light from the lens barrel is received by the imaging unit above a light receiving surface of the imaging unit. An optical path changing means for guiding to a surface is provided, and the ring is rotated to replace a lens barrel interposed in an optical path to the light receiving surface of the imaging unit.

According to a twelfth aspect of the present invention, in the camera according to the second aspect, the rotator rotates in a direction of a light receiving surface and a back surface of the rotator with the imaging unit as a center, and the inner peripheral surface of the rotator. The optical system is characterized in that the lens barrel is attached to the camera and the rotating body is rotated to replace the lens barrel interposed in the optical path to the light receiving surface of the imaging unit.

A camera according to a thirteenth aspect of the present invention is the camera according to any one of the first to twelfth aspects, wherein the lens barrel is a pinhole optical part having a pinhole as a first surface. I do.

Hereinafter, embodiments of the present invention will be described with reference to FIGS.
4 will be described. (Embodiment 1) FIGS. 1 to 10 show (Embodiment 1) of the present invention.

As shown in FIGS. 1A and 1B, a flat (specifically, card-shaped card having a thickness of 10 mm or less) camera body 1 includes a CCD element 3 as an image pickup unit and an arithmetic processing unit. 9 and a printed circuit board 16 on which the memory 10 and the like are mounted. The image data written in the memory 10 is transferred to the outside by a communication cable or wirelessly.

The CCD 3 is mounted on the upper surface of the camera body 1.
An opening 1a is formed in a portion facing the light receiving window. A rotation shaft 5 whose base end is rotatably supported at the bottom of the camera body 1 extends from the opening 1a to the outside of the camera body 1, and a tip of the rotation shaft 5 is provided to the imaging unit so as to cover the opening 1a. A rotatable body 4 that can rotate freely is attached.
A plurality of lens barrels 2a, 2b, 2c are provided on the back surface of the rotating body 4 at predetermined intervals on the same radius.

The lens barrel 2a is configured as shown in FIG. The lens barrel 2a has a cup-like shape with an opening 13a drilled at the bottom and attached to the rotating body 4, and a pinhole 12 drilled at the center to close the upper end opening of the lens barrel 13. And a lens 14 attached to the back surface of the pinhole plate 11. The lens barrels 2b and 2c have the same configuration as the lens barrel 2a, and the lens barrels 2a to 2c have the cross-sectional shape of the pinhole 11 and the shape, material,
4 and the CCD element 3 have different distances.

With such a configuration, the user puts his / her finger on the portion A of the rotating body 4 exposed to the outside from the side surface of the camera body 1 and rotates the rotating body 4 about the rotating shaft 5 to thereby rotate the rotating body 4. The lens barrels 2a to 2c located in front of the light receiving window of the CCD element 3 can be replaced.

FIG. 1B shows the bottom of the camera body 1.
The eyepiece transmission window 1c is formed in the rotary body 4 at a position near the lens barrels 2a to 2c as shown in FIG.
Finder windows 6a to 6c are formed in correspondence with c. The size of the finder windows 6a to 6c is shown in FIG.
As shown in detail in (a), (b), and (c), each of the lens barrels 2a to 2c has a size indicating a shooting range corresponding to the angle of view.

One of the lens barrels 2a to 2c is a CCD element 3
1 and 4 (a), (b), and (c), different radii from the center of the rotation shaft 5 as shown in FIGS. Click mechanisms 17a to 17c are provided on r1, r2, and r3.

As shown in FIGS. 5A and 5B, the click mechanism 17a includes a concave portion 30 formed on the back surface of the rotating body 4, a ball 18a formed inside the concave portion 30, and the ball 18a. And a compression spring 19 that pushes out the opposing portion of the rotating body 4. The lens barrel 2a is C
As shown in FIG. 5 (b), a concave portion 2 is formed in a portion of the camera body 1 facing the rotating body 4 so that the ball 18a is engaged in a state where the ball 18a is stopped in front of the light receiving window of the CD element 3.
0a is formed.

The click mechanisms 17b and 17c have the same structure as the click mechanism 17a. A lens barrel 2b is provided at the portion of the camera body 1 facing the rotating body 4 as shown in FIG. A recess 20b is formed so that the ball 18b of the click mechanism 17b is engaged with the lens barrel 2c stopped at a position in front of the light receiving window of the element 3, and the lens barrel 2c is connected to the CC.
The recess 20c is engaged with the ball 18c of the click mechanism 17c while stopped at a position in front of the light receiving window of the D element 3.
Are formed. Further, switches 21a, 21b, and 21c are provided at the bottom of each of the recesses 20a to 20c, and when the detection state of the switches 21a to 21c is detected, the lens barrels 2a to 2c are provided.
It can be confirmed which of 2c is stopped at a position in front of the light receiving window of the CCD element 3.

Specifically, when the lens barrel 2a is stopped at a position in front of the light receiving window of the CCD element 3, the switch 21a detects the engagement of the ball 18a, and the switches 21b, 21c
Does not detect the engagement of the balls 18b and 18c. When the lens barrel 2b is stopped at a position in front of the light receiving window of the CCD element 3, the switch 21b detects the engagement of the ball 18b,
The switches 21a and 21c do not detect the engagement of the balls 18a and 18c. When the lens barrel 2c is stopped at a position in front of the light receiving window of the CCD element 3, the switch 21c detects the engagement of the ball 18c, and the switches 21a and 21b do not detect the engagement of the balls 18a and 18b.

As shown in FIG. 6, the arithmetic processing unit 9 determines that the lens barrels stopped at the position in front of the light receiving window of the CCD element 3 from the output states of the switches 21a to 21c are the lens barrels 2a to 2c.
Is recognized, and the aberration of the output signal of the CCD element 3 and the fall of the peripheral light amount ratio are corrected according to the angle of view and written into the memory 10.

More specifically, as shown in FIG. 7A, for the image of the lens barrel with pincushion distortion as shown in FIG. 7A, the arithmetic processing unit 9 is predetermined as shown in FIG. 7B. The read image is corrected by performing the geometric transformation.

As shown in FIG. 7C, for the image of the lens barrel with barrel distortion, the processing unit 9
A predetermined geometric transformation is performed as shown in (d). Note that the predetermined geometric transformation is performed by color (RGB
Chromatic aberration and distortion are corrected, and an image free of image distortion and color shift is written to the memory 10.

Further, in the arithmetic processing unit 9, as shown in FIG. 8 (a) or (c), the light amount at the central portion is set to 100%, and the image of the lens barrel portion where the transmitted light amount varies at the peripheral portion is calculated. The processing device 9 performs a predetermined brightness conversion to correct the variation in the brightness in the screen as shown in FIG. 8B or 8D.

More specifically, a function r (x, y) of a ratio (peripheral light amount ratio) of the light amount reaching the coordinates (x, y) of the peripheral portion of the image to the light amount reaching the central portion of the image is calculated for each lens barrel. , And the brightness value of the image obtained from the CCD element 3 based on this function is B (x, y), and B ′ (x,
y) = B (x, y) / r (x, y).

With this configuration, the user rotates the rotating body 4 to move the eyepiece transmission window 1c to the viewfinder window 6c.
When the user looks into the subject through a to 6c and selects a lens barrel having an appropriate angle of view, the arithmetic processing unit 9 recognizes the selected lens barrel and recognizes the unique aberrations and brightness unevenness of the lens barrels 2a to 2c. Is automatically corrected, so that a good image can be obtained even when a pinhole optical unit having a simple structure and capable of being thinned is adopted.

As shown in FIG. 2, a buffer member 15 is interposed between the CCD element 3 and the lens barrels 2a to 2c to prevent unnecessary light from entering the CCD element 3 from the gap. Is configured. More specifically, a buffer member 15 is provided around the light receiving window of the CCD element 3, and the emission side end faces of the barrel sections 2 a to 2 c so as not to be caught by the buffer member 15 when the barrel sections are replaced. Are chamfered.

Since the click mechanisms 17a to 17c and the recesses 20a to 20c are provided, the rotating body 4 is operated so that the lens barrels 2a to 2c are located substantially at the center of the imaging range of the CCD element 3.
The center of any one of the lens barrels 2a to 2c can be stopped, but the imaging range of the CCD element 3 is set to be larger than the effective imaging range of the lens barrels 2a to 2c so that the lens barrels 2a to 2c can be stopped. Even if the stop position is slightly deviated, the image can be read without missing the image.

More specifically, reference numeral 31 in FIG. 9B indicates an imaging range of the CCD element 3, and the center of the lens barrel 2 a is located at the center of the imaging range 31 of the CCD element 3 as shown in FIG. The effective imaging range 32- of the lens barrel 2a at the stop position S0 that matches
0 is smaller than the imaging range 31 of the CCD element 3. Each effective imaging range 3 when the center of the lens barrel 2a is slightly shifted from the center of the imaging range 31 of the CCD element 3 to the stop position SA or SB shown in FIG.
2-A and 32-B are also configured to be within the imaging range 31 of the CCD element 3 as shown in FIG.

A specific configuration of reading by the arithmetic processing unit 9 when the imaging range of the CCD element 3 is set to be larger than the effective imaging range of the lens barrels 2a to 2c is shown.

The processing unit 9 sets a mask 33 having the size of the effective image forming range in step S1 shown in FIG. In step S2, the CCD element 3 shown in FIG.
Of the mask 33 at the initial position in the imaging range 31 is calculated, the position of the mask 33 in the imaging range 31 of the CCD element 3 is moved to the next position in step S3, and the position of the mask 33 is shifted in step S4. It is determined whether or not the movement of the position has been completed, and steps S2 to S4 are repeatedly executed to collect luminance data in the imaging range 31 of the CCD element 3. In step S5, the maximum value of the sum of luminance in the mask 33 is obtained. Is determined as the effective imaging range, and the arithmetic processing unit 9 is configured to read the image within the range of the mask 33 at the position determined in step S5 within the imaging range 31 of the CCD element 3. I have.

Therefore, the imaging range 31 of the CCD 3
The stop position of the center of the lens barrels 2a to 2c with respect to the center of
Even in the case where the position is slightly shifted to A or SB and stopped, since only the image in the effective imaging range can be cut out from the imaging range 31 of the CCD element 3 and read, the positioning accuracy of the rotating body 4 is loose. Thus, a good output image can be obtained.

The arithmetic processing unit 9 performs the correction of the aberration of the output signal of the CCD element 3, the correction of the fall of the peripheral light amount ratio, and the processing of cutting out and reading only the image in the effective image forming range. Can be expected to improve image quality somewhat.

(Embodiment 2) FIGS. 11 and 12 show (Embodiment 2) of the present invention, in which components having the same functions as those of (Embodiment 1) are denoted by the same reference numerals. .

In this (Embodiment 2), the lens barrels 2a-2
The optical axis is bent inside c, and the mounting direction of the lens barrels 2a to 2c with respect to the rotating body 4 is different from that of the first embodiment. Accordingly, the eyepiece transmission window 1c and the finder windows 6a to 6c provided in (Embodiment 1) are not present.

The lens barrels 2a to 2c are composed of a lens 14 and a mirror 22 as an optical path changing means.
And a pinhole 12 is formed in the outer peripheral surface of the. Other configurations are the same as those of the first embodiment.

Although the case where a pinhole optical section is used for the lens barrels 2a to 2c is shown here, the lens barrels 2a to 2c are used.
Is not limited to this. (Embodiment 3) FIGS. 13A and 13B show (Embodiment 3) of the present invention. (Embodiment 1) (Embodiment 2)
The components having the same functions as those described above will be described with the same reference numerals.

(Embodiment 1) In Embodiment 2, the rotating body 4 to which the lens barrels 2a to 2c are attached is a rotating shaft 5
In this (Embodiment 3), the slide plate 34 to which the lens barrels 2a to 2c are attached slides along a groove 35 formed in the camera body 1. It is configured such that the slide plate 34 is moved to replace the lens barrel located in front of the light receiving window of the CCD element 3. FIG. 13 (a)
In (b), the lens barrel 2b is located in front of the light receiving window of the CCD element 3.

The structure of the main part of the lens barrels 2a to 2c is the same as that of the first embodiment or the second embodiment.
In this (Embodiment 3), the slide plate 3
4 with pinholes formed, or FIG.
As shown in (1), the lens 36, 37 and the aperture plate 38 may be used.

(Embodiment 4) FIGS. 14A to 14F show (Embodiment 4) of the present invention. (Embodiment 1)
Components having the same functions as those of the second embodiment will be described with the same reference numerals.

Although the camera body 1 in each of the above embodiments has a flat shape, in this (Embodiment 4) the camera body 1
Are formed in a cylindrical shape. As shown in FIGS. 14A to 14C, a cylindrical light-blocking member 39 containing the CCD element 3 is formed at an end of the camera body 1. CCD element 3
The light receiving window is attached with the light receiving window facing the peripheral surface of the light shielding member 39, and a window 40 is formed in the light shielding member 39 corresponding to the light receiving window of the CCD element 3. The cushioning member 1 is provided around the window 40.
5 is attached. The corners of the emission-side end surfaces of the lens barrels 2a to 2c are chamfered so as not to be caught by the buffer member 15 when the lens barrels are replaced.

FIG. 14D shows the outer side of the light shielding member 39.
As shown in (f), a cup-shaped rotating body 41 to which the lens barrels 2a to 2c are attached is rotatably mounted on the camera body 1 coaxially with the light shielding member 39. Pinholes 12 are formed in the peripheral surface of the rotating body 41 at positions where the lens barrels 2a to 2c are mounted.

With this configuration, by rotating the rotating body 41 with respect to the camera body 1, the lens barrel portion located in front of the light receiving window of the CCD element 3 can be replaced, and photographing is performed at a desired angle of view. it can.

[0053]

As described above, the camera according to the present invention is attached to the moving body with a different angle of view and at predetermined intervals from a moving body or a rotating body freely movable with respect to the imaging unit. A plurality of lens barrels are provided, and the moving body is moved so that the lens barrels interposed in the optical path to the imaging unit are exchanged, so that the angle of view can be achieved without introducing the principle of a zoom lens barrel. Can be switched, and the thickness can be reduced.

Further, by using a lens barrel as the lens barrel, further reduction in thickness can be realized. Further, based on the output of the position detecting means for detecting the stop position of the rotating body, the imaging unit identifies which of the plurality of lens units is interposed in the optical path to the imaging unit. By providing an arithmetic processing unit that controls the signal processing of the output signal of the above, it is possible to perform image processing according to the lens barrel used, and to switch to another lens barrel having a different angle of view. Can also maintain image quality.

Further, the arithmetic processing device is switched to another lens barrel having a different angle of view by switching the aberration correction processing characteristic or the luminance correction processing characteristic according to the lens barrel in use. Image quality can be maintained.

Further, by providing a light-blocking member for closing a gap between the imaging section and the exit side end of the lens barrel in use, it is possible to realize good imaging without unnecessary light incidence. Also,
The imaging range of the imaging unit is made larger than the effective imaging range of the lens barrel unit, and the arithmetic processing unit reads the output of the imaging unit, performs signal processing, and cuts out only the data of the effective imaging range. Thus, proper reading can be performed.

Further, the data of the effective imaging range is cut out by the arithmetic processing unit by setting a mask having an opening corresponding to the size of the effective imaging range of the lens barrel. By scanning, the sum of the luminance values in the mask at each position is calculated, and the mask range at the position where the sum of the luminance values is the maximum is cut out as the effective imaging range, whereby the effective imaging range is calculated. Only data can be cut out.

Further, the imaging unit, the rotating body and the plurality of lens barrels are incorporated in the housing, and a finder window is formed in the rotating body, and an eyepiece is provided on the housing corresponding to the finder window. By forming a translucent window for
The subject can be accurately captured.

Further, by making the size of the finder window different according to the angle of view of the lens barrel, an appropriate angle of view can be selected and the subject can be accurately captured. Further, the imaging unit is disposed on the inner bottom of the flat casing with the light receiving surface facing upward, and the rotating body rotates in a posture parallel to the bottom of the casing. By mounting the lens barrel on the surface facing the bottom and rotating the disk to replace the lens barrel interposed in the optical path to the light receiving surface of the imaging unit, the thickness is reduced. it can.

Further, the imaging unit is disposed on the inner bottom of the flat casing with the light receiving surface facing upward, and the rotating body is a ring whose inner peripheral surface rotates in a posture parallel to the bottom of the casing. Attaching the lens barrel to the inner peripheral surface of the ring, providing light path changing means for guiding light from the lens barrel to the light receiving surface of the imaging unit above the light receiving surface of the imaging unit, and rotating the ring. In this case, the thickness of the imaging unit can be reduced by replacing the lens barrel provided in the optical path to the light receiving surface of the imaging unit.

Further, the rotating body rotates in the direction of the light receiving surface and the back surface with the image pickup unit as a center, the lens barrel is attached to the inner peripheral surface of the rotating body, and the rotating body is rotated. In this case, the thickness of the imaging unit can be reduced by replacing the lens barrel provided in the optical path to the light receiving surface of the imaging unit.

[Brief description of the drawings]

FIG. 1 is a plan view and a partially cutaway front view of a camera according to a first embodiment of the present invention.

FIG. 2 is an enlarged sectional view of a rotating body and a lens barrel according to the embodiment;

FIG. 3 is an explanatory view showing an eyepiece transmission window and each finder window of the embodiment.

FIG. 4 is a plan view showing a position of each click mechanism in the rotating body of the embodiment and a plan view showing a concave portion formed in the camera body.

FIG. 5 is a sectional view showing a state where the click mechanism according to the embodiment is not engaged with the concave portion of the camera body and a state where the click mechanism is engaged;

FIG. 6 is a configuration diagram of a signal processing circuit according to the embodiment;

FIG. 7 is an explanatory diagram of a screen before and after an aberration correction process in the arithmetic processing device according to the embodiment;

FIG. 8 is an explanatory diagram of a screen before and after a luminance correction process in the arithmetic processing device according to the embodiment;

FIG. 9 is a plan view showing the displacement of the stop position of the rotating body according to the embodiment, and an explanatory diagram showing the difference between the imaging range of the CCD element and the effective imaging range of the lens barrel;

FIG. 10 is an explanatory diagram showing a movement of a mask in an image signal reading process in the arithmetic processing device of the embodiment and a flowchart of the image signal reading process;

FIG. 11 is a plan view and a partially cutaway front view of a camera according to a second embodiment of the present invention.

FIG. 12 is an enlarged sectional view of a main part of the embodiment.

FIG. 13 is a plan view and a partially cutaway front view of a camera according to (Embodiment 3) of the present invention, and an enlarged cross-sectional view showing another example of a lens barrel in each embodiment.

FIG. 14 is a front view of a state in which a rotating body is removed according to (Embodiment 4) of the present invention, a sectional view taken along the line AA and a side view thereof, and a front view in a state where the rotating body is attached, and a sectional view taken along the line BB thereof. And side view

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Camera main body 1a Opening 1c Eyepiece transmissive window 2a, 2b, 2c Lens tube part 3 CCD element 4 Rotating body 5 Rotation axis 6a-6c Viewfinder window 9 Arithmetic processing unit 10 Memory 11 Pinhole plate 12 Pinhole 13 Lens tube 13a Opening DESCRIPTION OF SYMBOLS 14 Lens 15 Buffer member 16 Printed circuit board 17a-17c Click mechanism 18a, 18b, 18c Ball 19 Compression spring 20a, 20b, 20c Recess 21a, 21b, 21c Switch 22 Mirror 30 Recess 31 CCD imaging range 32-0, 32- A, 32-B Effective imaging range of lens barrels 2a to 2c 34 Slide plate 35 Groove 36, 37 Lens 38 Aperture plate 39 Light shielding member 40 Window

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) H04N 5/225 H04N 5/225 B 5C022 D 5/232 5/232 Z 5/243 5/243 (72) Inventor Shigeki Murata 1006 Kadoma, Kazuma, Kazuma, Osaka Prefecture F-term in Matsushita Electric Industrial Co., Ltd. (reference)

Claims (13)

[Claims] A moving body movable with respect to an image pickup unit; and a plurality of lens barrels attached to the moving body at different intervals of view and at predetermined intervals, and the moving body is moved by moving the moving body. A camera configured to replace a lens barrel interposed in an optical path to an imaging unit. 2. A rotating body rotatably attached to an imaging section, and a plurality of lens barrels attached to the rotating body at different angles of view and at predetermined angles, and rotating the rotating body. A camera configured to replace a lens barrel interposed in an optical path to the imaging unit. And a position detecting means for detecting a stop position of the rotating body, wherein any one of the plurality of lens barrels is interposed in an optical path to the imaging unit based on an output of the position detecting means. The camera according to claim 2, further comprising an arithmetic processing unit that identifies whether the image is to be processed and controls signal processing of an output signal of the imaging unit. 4. The camera according to claim 3, wherein the arithmetic processing unit is configured to switch an aberration correction processing characteristic or a luminance correction processing characteristic according to a lens barrel in use. 5. The camera according to claim 2, further comprising a light-blocking member that closes a gap between the imaging unit and an emission-side end of the lens barrel in use. 6. An arithmetic processing device for making an imaging range of an imaging section larger than an effective imaging range of a lens barrel section, reading an output of the imaging section, performing signal processing, and cutting out only data of the effective imaging range. 3. The camera according to claim 2, wherein the camera is provided. 7. A method according to claim 1, wherein a mask having an opening corresponding to the size of the effective imaging range of the lens barrel is set by the arithmetic processing unit to cut out the data of the effective imaging range. 7. The camera according to claim 6, wherein the camera is configured to scan and calculate the sum of the luminance values in the mask at each position, and cut out the mask range at the position where the sum of the luminance values is maximum as the effective imaging range. 8. A housing incorporating the imaging section, the rotating body and the plurality of lens barrels, a finder window formed in the rotating body, and an eyepiece on the housing corresponding to the finder window. The camera according to claim 2, wherein a light transmitting window is formed. 9. The camera according to claim 8, wherein the size of the finder window is changed according to the angle of view of the lens barrel. 10. A disk in which the imaging unit is disposed on the inner bottom of a flat casing with its light receiving surface facing upward, and the rotating body rotates in a posture parallel to the bottom of the casing. 3. The lens barrel according to claim 2, wherein the lens barrel is attached to a surface of the housing facing the bottom, and the disk is rotated to replace a lens barrel interposed in an optical path to the light receiving surface of the imaging unit. Camera. 11. The image pickup unit is disposed on the inner bottom of a flat casing with its light receiving surface facing upward, and the rotating body is a ring whose inner peripheral surface rotates in a posture parallel to the bottom of the casing. Mounting the lens barrel on the inner peripheral surface of the ring; providing light path changing means for guiding light from the lens barrel to the light receiving surface of the imaging unit above the light receiving surface of the imaging unit; rotating the ring The camera according to claim 2, wherein a lens barrel interposed in an optical path to the light receiving surface of the imaging unit is exchanged. 12. The rotator rotates in the direction of the light receiving surface and the back surface with the imaging unit as a center, the lens barrel is attached to the inner peripheral surface of the rotator, and the rotator is rotated. 3. The image pickup device according to claim 2, wherein a lens barrel interposed in an optical path to the light receiving surface of the imaging unit is replaced.
The described camera. 13. The camera according to claim 1, wherein said lens barrel is a pinhole optical section having a pinhole as a first surface.