JP2004348155A - Camera - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a camera allowing even a usual user to get a three-dimensional picture simply and quickly. <P>SOLUTION: The camera is provided with a photographing part 2, two opening parts disposed on an optical path of the photographing part 2, a mirror which reflects two subjects split by the two opening parts and a recording part 4 which records respective subjects inverted by mirror reflection and the inversion correcting information for inverting the respective subjects and, thereby, turning them into correct images. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a camera that captures a subject from different points and captures a stereoscopic photograph.

  2. Description of the Related Art Conventionally, various techniques for taking a stereoscopic photograph have been proposed in Japanese Patent Application Laid-Open No. Sho 59-142537.

  Apart from the technology related to such dedicated three-dimensional photographable cameras, new technologies such as autofocus for automatically focusing and proposal of a magnetically recordable film have been introduced in general still cameras. .

  In such a flow, there has been a demand for a camera capable of taking a stereoscopic photograph, which allows a general user to easily and effectively take a stereoscopic photograph.

  However, the technology disclosed in the above-mentioned Japanese Patent Application Laid-Open No. 59-142537 focuses on a microlens plate, that is, a lenticular or an optical system, and does not describe any technology relating to the human interface with the user. Had not been.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a camera that enables a general user to easily and quickly obtain a stereoscopic image.

  In order to achieve the above object, according to a first aspect of the present invention, a photographing optical system, two openings provided in an optical path of the photographing optical system, and two objects divided by the two openings are provided. A mirror for reflecting an image, recording means for recording each subject image inverted by being reflected by the mirror, and reversal correction information for reversing each subject image to obtain a correct image; A camera is provided.

  In a second aspect, there is provided the camera according to the first aspect, wherein the inversion correction information is information used when printing a subject image recorded in the recording means. In a third aspect, in the first or second aspect, a distance measuring means for detecting a subject distance and a switching means for switching and controlling an interval between the two openings in accordance with a distance measurement result of the distance measuring means. The camera is further provided, wherein the upper recording means records information for correcting an image position shift caused by the switching control by the switching means.

  According to the present invention, it is possible to provide a camera that enables a general user to easily and quickly obtain a stereoscopic image. Further, since the inversion correction information and the information for correcting the image position deviation can be recorded, a correct stereoscopic image can be obtained.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  First, FIG. 1 shows and describes a configuration of a camera capable of taking a stereoscopic photograph according to a first embodiment of the present invention. As shown in FIG. 1, the distance measuring section 1 is electrically connected to an arithmetic control section 10, and the output of the arithmetic control section 10 is connected to the photographing section 2 via the photographing position switching section 3. It is also connected to the input of the recording unit 4. The arithmetic control unit 10 is provided with a mode switch 5 and a release switch 7.

  In such a configuration, the distance measuring unit 1 measures the distance to the subject at a predetermined timing, and outputs the information from the control unit 10. The photographing unit 2 includes a photographing lens, a focusing device, and a shutter. The photographing position switching unit 3 switches photographing positions so that the photographing unit 2 can photograph the same subject at least twice from different positions. The arithmetic control unit 10 controls the sequence of the entire camera, and is composed of a one-chip microcomputer or the like.

  When the user operates the release switch 7, distance measurement and photographing are started. The mode switch 5 is a switch operated by a user when taking a stereoscopic photograph. Further, the recording unit 4 is for recording whether the photograph taken on the photographic film is for a three-dimensional image, and for stereoscopic photographing, whether the photograph is for a left-eye print or a right-eye print.

  By writing a combination of a plurality of photographs for a stereoscopic photograph in the recording unit 4 in this manner, there is also an advantage that it is not always necessary to take a photograph at an adjacent position on the film. Therefore, the camera capable of taking a three-dimensional photograph according to the present embodiment increases the degree of freedom of the layout of the camera, and realizes the miniaturization of the camera.

  Next, FIG. 2 shows an external view of a camera capable of taking a stereoscopic photograph according to the first embodiment and will be described. In FIG. 2, the camera 8 having the distance measuring unit 1 and the photographing lens 9 measures the distance of the subject when the photographer operates the release switch 7 and slides the position on the slide head 6. And shoot twice. A feature of the first embodiment of the present invention resides in that the slide amount is made variable according to the distance measurement result.

  Hereinafter, with reference to FIG. 3, the reason why the slide amount is made variable depending on the distance measurement result will be described. 3A illustrates an example when the distance to the subject 20 is short, and FIG. 3B illustrates an example when the distance to the subject 20 is long.

  As shown in FIG. 3A, the subject 20 is three-dimensional and has an unevenness of Δl. In stereoscopic photography, the irregularities must be represented three-dimensionally. However, with the subject distance as shown in FIG. 3 (a), if the photographing is performed at a distance of ST1, the Δl of the subject is reduced through the photographing lens 9b. The depth can be recorded on the film 22b as a difference of Δx.

  If this Δx is small, the user cannot recognize this difference when the films 22a and 22b are enlarged and printed, and cannot see them three-dimensionally. The relationship between Δl and Δx is expressed by the following equation based on the focal length fT of the photographing lens and the position difference ST1 between the photographing lenses 9a and 9b.

Δx = (ST1 · fT) / l− (ST1 · fT) / (l + Δl)
= ST1 · fT (1 / l-1 / (l + Δl)) (1)
If (1 / l-1 / (l + Δl)) is expressed as Δ1 / l, the above equation (1) is represented by the following equation.

Δx = ST1 · fT · Δ1 / l (2)
From such a relationship, when l increases, Δ1 / l decreases correspondingly if Δl is the same. Therefore, if ST1 and fT are constant, Δx becomes smaller from the above equation (2), and finally Δx cannot be visually recognized even on a print. It is hard to say that a stereoscopic photograph can be taken with this.

  In view of such a point, the present invention has taken measures as variable control of the photographing lens position difference from ST1 to ST2 as shown in FIG. 3B. That is, when the subject distance 1 is large, ST2 is also made large.

  Next, FIG. 4 shows in more detail the configuration of a camera capable of taking a stereoscopic photograph according to the first embodiment that achieves such a difference in photographing lens position by lens position time division control. In FIG. 4, reference numeral 1 corresponds to the distance measuring unit 1 in FIG. 1, and a light projecting lens 12 for condensing and projecting infrared light for distance measurement to an object 20, an infrared light emitting diode (IRED) 11 which is controlled by the CPU 10 via the light emitting circuit 16.

  The light of the IRED 11 is reflected from the subject 20 and enters the light position detecting element (PSD) 14 via the light receiving lens 13. Since this incident position depends on the subject distance l according to the principle of triangulation, the PSD 14 outputs two current signals depending on the light position, and the distance measuring circuit 15 calculates the two signal currents to calculate the distance l. Is output to the CPU 10.

  Reference numeral 2 corresponds to the photographing section 2 in FIG. 1, and includes a focusing section 17 for focusing the photographing lens 9 on the subject 20 and a shutter 18 for controlling exposure of light from the photographing lens onto the film.

  Reference numeral 3 corresponds to the photographing position switching unit 3 in FIG. 1. When the CPU 10 rotates the motor 31 via the motor driver 30, the entire camera 9 in FIG. Move up in the direction of the arrow. By detecting the rotation speed of the gear 33 with a rotation speed detector 35 composed of a photocoupler or the like, the CPU 10 can control the amount of slide of the camera, that is, the difference in the photographing position of the camera. This photographing point is recorded on the film 22 via the magnetic recording circuit 23 and the magnetic head 21.

  Here, the shooting point information recorded on the film 22 will be described with reference to FIG. In FIG. 5, reference numerals 9A and 9B indicate two photographing positions of the photographing lens. The viewable angle of view is determined from these lenses and the size W of the films 22A and 22B, but the common part of the view angle θA at the shooting position 9A and the view angle θB at the shooting position 9B can be used for stereoscopic photography. It is only the angle of view θC.

  Accordingly, in the drawing, the portions of the angles of view θ3 and θ4 are unnecessary for the stereoscopic photograph. When shown on the film, the angles of view θ3 and θ4 appear as unnecessary unbalanced portions θF3 and θF4 of the two images as shown in FIG.

  In the present invention, the above-mentioned θF3 and θF4 are calculated from the distance measurement result 1 and the movement amount ST so as not to generate such useless portions, and information relating to the calculated amounts is recorded on a film. According to the recording result, the part is ignored so as not to burn.

  ΘF3 and θF4 are expressed by the following equations. Here, fT is the focal length of the photographing lens.

θF3 = θF4 = ST · fT / l (3)
It is generally considered that ST should be set as follows.

ST = 1/50 · l (4)
Therefore, at this time, equation (3) becomes
θF3 = θF4 = fT / 50 (5)
It becomes. However, since ST in the above equation (4) becomes a large value in a landscape photograph or the like, a limiter is provided.

  Also, depending on the sliding direction of the camera 8 and the winding direction of the film, the film and the left and right images may be reversed as shown in FIGS. 6 (a) and 6 (b). Information for identifying the left and right images is recorded on the magnetic recording unit so that the images are correctly aligned at the time of printing. The above-described left / right discrimination information and the unnecessary portion designation information in the above equation (3) are referred to as “imaging point information”.

  Hereinafter, the operation of the camera capable of taking a stereoscopic photograph according to the first embodiment will be described in detail with reference to the flowchart of FIG. When a power switch (not shown) is turned on and power is supplied, the CPU 10 first detects the input state of the release switch 7 (step S1). It is determined whether or not a mode (hereinafter abbreviated as 3D mode) for photographing is set (step S2). When the 3D mode is not selected, the object distance is detected using the distance measuring unit 1 (step S25), the focusing unit 17 is controlled (step S26), and the shutter is operated to perform exposure. (Step S27), the process proceeds to step S13.

  On the other hand, when the 3D mode is set in step S2, the distance is measured (step S3), and then a distance ST that is 1/50 of the distance measurement result 1 is obtained (step S4). If ST exceeds 20 cm (step S5), ST is fixed at 20 cm and a limiter is set (step S6).

  Subsequently, the focus of the photographing lens is adjusted to fix the focus (step S7), exposure is performed (step S8), a film winding operation is performed to change the exposure position of the film (step S9), and the photographing position is changed (step S9). S10) Expose again. (Step S11). At this time, the photographing point information described above is simultaneously written in the magnetic recording unit on the film in the recording unit 4 (step S12). This operation is similarly performed in step S9 after the exposure in step S8. Thus, the position of the focusing lens fixed in step S6 is initialized (step S13), and all the operations are completed (step S17).

  As described above, according to the first embodiment, a stereoscopic photograph can be easily formed by simply combining the movable head 6 with the camera 8 having the magnetic recording function and adding an appropriate program to the camera control CPU. It is possible to provide a camera capable of taking a stereoscopic photograph capable of taking a picture.

  Next, FIG. 8 shows and describes a configuration of a camera capable of taking a stereoscopic photograph according to a second embodiment of the present invention. The second embodiment relates to a camera that divides the pupil of one taking lens 9 to obtain a three-dimensional photograph, and has an advantage that a slide head is not required as compared with the first embodiment. Here, the interval between the masks 40a and 40b for pupil division becomes the photographing position difference ST of the first embodiment, and this is switched by the photographing position switching unit 3 including the motor 31, the motor driver 30, and the like. In addition, a mirror 41 is provided for exposing another portion of the film 22 with the divided light beams.

  A magnetic recording unit 4 is provided, which corrects information for making a correct image by inverting an image inverted by a mirror at the time of printing and corrects an image position shift caused by switching the interval between the masks 40a and 40b. Information can be entered. Further, a warning section 43 is provided so that when it is determined that an appropriate three-dimensional effect cannot be obtained, the user is made aware of this by turning on an LED or sounding a buzzer.

  Further, the two switches 7a and 7b are sequentially turned on in conjunction with the pressing of the release button, so that the CPU 10 can detect the timing prior to the photographing and the timing at which the photographing is performed. It is called a release switch and a second release switch.

  Further, the distance measuring section 1 employs a so-called “multi AF” so that a plurality of points on the screen can be measured. In this multi AF, as shown in FIG. 9, by scanning the IRED 11 in the horizontal direction and emitting light at each point, the distance measuring light 45 can be sequentially projected at different points.

  Further, the light projecting and receiving lenses 12, 13 are arranged above and below the camera, and the light incident position of the PSD 14 is detected in the vertical direction. Distance measurement of each point is performed according to the principle of distance.

  Here, FIG. 9A shows an arrangement of the distance measuring optical system, the photographing lens 9, the mirror 31, and the film 22. This is laid out on the camera body 8, as shown in FIG. 9B. By adopting such multi-AF, for example, by measuring the range of 46 in a scene as shown in FIG. 10A, it is possible to know what distance distribution the subject has. The relationship between the subject position x and the distance 1 is as shown in FIG.

  Hereinafter, the operation of the camera capable of taking a stereoscopic photograph according to the second embodiment will be described with reference to the flowchart of FIG.

  When a power switch (not shown) is turned on and power is supplied, the CPU 10 first detects the state of the first release switch 7a (step S30). When the first release switch 7a is turned on, the CPU 10 scans the IRED 11 and sequentially signals the PSD 14. The light incident position is detected, and the CPU 10 calculates the distance of each point from the result (step 31). Then, a distance having many points indicating the same distance at a distance of 1 m to 3 m is set as the main subject distance Ip (step S32). In this step S32, the distance of the three points obtained by measuring the distance of the person 20 in FIG. 10 is detected as lp.

Then, the distance farthest after lP, the distance closest to lP, and the reciprocal difference from lP are detected, and are set to Δ1 / 11 and Δ1 / 12, respectively (steps S33, S34). Then, the smaller value is selected from Δ1 / l1 and Δ1 / l2, and the smaller value is obtained from the above equation (2).
ST = Δx / (fT · Δ1 / l) (6)
, The distance ST between the openings of the masks 40a and 40b is determined. At this time, Δx is fixed at 0.05 mm, and the focal length fT of the photographing lens is also fixed (step S35).

For example, when IP = 2m and the tree is 50cm behind,
Δ1 / l = 1/2 / 2.5 = 0.1 (1 / m)
It becomes. Also, if fT = 35 mm,
ST = 0.5 / (35 · 0.1 · 10−3) = 14.3 mm
And the distance ST between the openings of the masks 40a and 40b is 14.3 mm.

  Next, the calculation result ST is compared with the maximum value of ST that can be set by the camera (step S36), and if it exceeds this, a warning is issued that no stereoscopic photograph can be taken (step S37). This is an idea that can be applied even to a stereo camera without the ST switching function, and it is also possible to determine from the predetermined ST and the result of distance measurement whether the shooting situation is suitable for stereo shooting or to issue a warning. Part of the invention.

  Subsequently, both masks are controlled so that an opening is set at ST obtained in this way (step S38). When an input of the second release switch is detected (step S39), exposure is performed (step S40), and winding and winding are performed. Magnetic recording is performed (step S41). In the present embodiment, as is apparent from FIG. 8, since exposure is performed at different positions on the film, there is a risk that double exposure may occur or the film may be wasted in the method of sequentially feeding and winding the film. .

  Therefore, as shown in FIGS. 11 (a) to 11 (c), the magnetic recording result is detected by the magnetic head 21 or the like so that the unused portion of the film 22 can be packed and the photographing can be performed without waste. Stop control is performed (step S43). Thus, all the operations are completed (step S44).

  As described above, in the second embodiment, the pupil of one lens is divided and two images for stereoscopic photography are recorded on different portions of the film. It is configured to be able to become a three-dimensional photograph as one, and to record information for mirror inversion correction on the film magnetically, so that two images can be formed on the film by devising the optical system like a conventional three-dimensional camera. There is no need to make the camera adjacent to the camera or to correct the inversion caused by the mirror in the optical path, and it is possible to provide a more compact camera. In addition, since the distance distribution of the subject is detected from the distance measurement results of a plurality of points on the screen, and it is possible to determine whether the scene is suitable for a stereoscopic photograph, anyone can enjoy stereoscopic photography without failure. Camera can be provided.

  Next, FIG. 13 shows and describes a configuration of a camera capable of taking a stereoscopic photograph according to a third embodiment of the present invention. In the third embodiment, the above equation (2) is changed to the following equation, and the focal length fT of the photographing lens is controlled so that a three-dimensional photograph that looks more three-dimensional can be taken.

fT = Δx / (ST · Δ1 / l) (7)
That is, in the third embodiment, in addition to the multi AF unit 1, the warning unit 43, the magnetic recording unit 4 for the film 22, the shutter unit 18, and the zoom control unit 45 for switching the focal length of the two photographing lenses 9A and 9B, the CPU 10 It is connected to the. The focal length of the photographing lenses 9A and 9B is switched by the zoom control unit 45.

  Hereinafter, the operation of the camera capable of taking a stereoscopic photograph according to the third embodiment will be described with reference to the flowchart of FIG.

  When a power switch (not shown) is turned on and power is supplied, first, the CPU 10 determines whether or not the mode changeover switch 5 has been operated to set a 3D mode for photographing a stereoscopic photograph (step S50). Here, when the 3D mode is not selected, the normal shooting is performed with one of the lenses (step S65), and the process proceeds to step S63.

  If the 3D mode is selected in step S50, it is then determined whether the first release switch that closes when the release switch is half-pressed is ON / OFF (step S51). When the switch is turned on, multi-point ranging for measuring a plurality of points on the screen is performed (step S52), and the same ranging result as shown in FIG. The distance with the largest number of distance points is set as the main subject distance Ip (step S53).

  Subsequently, the furthest and latest distances are selected from the distance measurement result, and the difference between these reciprocals and the reciprocal of 1P is calculated as Δ1 / 11 and Δ1 / 12 (steps S54 and S55). At this time, the farthest distance may be considered excluding a distance called infinity such as a landscape.

  Next, the smaller one of Δ1 / l1 and Δ1 / l2 obtained in this way is defined as Δ1 / l, and the zooming position fT of the photographing lens is calculated according to the above equation (7) (step S56). It is determined whether or not exceeds the f1 value that can be taken (step S57). When this is branched to "Y", the warning unit 43 is activated (step S58).

  Next, zooming control of the focal length of the camera photographing lens is performed (step S59). When an input of the second release switch is detected (step S60), exposure is performed (step S62). Subsequent steps S63 and S64 are the same as steps S42 and S43 in FIG. In addition, the lens aperture for photographing or the like is set to be small in step S59, and the depth of field is set deeper than that for normal photographing so as to match a stereoscopic photograph.

  Here, FIG. 15 shows and describes the configuration and appearance of the lens and shutter of the camera capable of taking a stereoscopic photograph of the third embodiment.

  As shown in FIG. 15 (a), shutters 18A and 18B are provided behind the two photographing lenses 9A and 9B, and each has an aperture diameter (aperture) via first and second shutter control units including electromagnetic actuators and the like. The CPU 10 controls the opening time. Therefore, when the 3D mode is not set by the SW5, the first or second shutter control unit is independently controlled so that normal photographing can be performed.

  At this time, since only half of the film is used during 3D photographing, the state of use is magnetically recorded, and in the next photographing, the position where the film is wound up is exposed without waste. This is the process of step S64 in FIG. 14. After the normal imaging is performed, the half-winding after the 3D imaging is wound up to prepare for the next imaging.

  FIG. 15C shows the time change of the opening of the shutter. That is, the CPU 10 controls the shutter aperture to open as shown in the figure during normal shooting, and closes the shutter when a predetermined amount of exposure is completed.

  On the other hand, at the time of 3D imaging, control is performed so that the two shutter apertures are stopped at predetermined openings to increase the depth of field. An external view of such a camera is shown in FIG.

  As shown in FIG. 15B, two photographing lenses 9A and 9B, AF light emitting and receiving lenses 12 and 13, a finder objective lens 32, and a strobe outlet 51 are arranged on the front surface of the camera body 5. . Reference numeral 7 is a release button, and reference numeral 5 is a 3D mode setting switch.

  The light for distance measurement is sequentially projected in different directions as shown by the light projecting lenses 12 to 45 to perform multi AF. At this time, as shown in the figure, the arrangement direction of the two photographing lenses 9A and 9B and the scanning direction of the multi-AF distance measuring light are aligned to make it easier to determine the effect of the stereoscopic photograph.

  As described above, in the third embodiment, the normal operation and the 3D operation are easily switched by switching the operation control of the shutters respectively provided for the two photographing lenses to the simultaneous control or only one control. be able to.

  The switching of the zoom position of the photographing lens is a technique employed in a conventional compact camera or the like. Therefore, if there is space for two photographing lenses, it can be more easily adopted in the conventional technique than in the second embodiment. .

  Further, it is possible to provide a camera having the same configuration and having the warning display reversed. In other words, the mode is a normal photographing mode which is not a stereoscopic camera. When a distance distribution suitable for a stereoscopic photograph is obtained as a result of distance measurement when the first release switch is turned on, the CPU 10 determines this and gives the user a 3D mode. The warning section will prompt you to take a picture. With such specifications, a camera that allows ordinary users to easily enjoy stereoscopic photography can be provided.

  Although the embodiment of the present invention has been described above, the present invention is not limited to this, and it is needless to say that various improvements and modifications can be made.

  For example, in the above embodiment, since there must be no difference between the two images constituting the three-dimensional photograph such as color tone and brightness at the time of printing, development and printing are performed under the same conditions using the magnetic recording unit 4. It is also effective to write such information on the corresponding film portion.

  According to the above embodiment of the present invention, the following configuration is obtained.

(1) distance measuring means for measuring a plurality of points on a shooting screen;
Determining means for determining a difference between the main subject distance and other subject distances from the plurality of distance measurement results;
Photographing means having a zoom lens for photographing a subject from a plurality of different positions,
A camera having zoom lens control means for controlling the focal length of the zoom lens according to the output of the determination means.

(2) a release switch that closes before shooting,
Distance measuring means for measuring the subject distance in the center of the screen,
Photographing means for photographing a subject from a plurality of different positions;
A camera, comprising: a warning unit that issues a warning when the release switch is operated in accordance with a result of the distance measurement and a difference between the plurality of photographing positions.

(3) In a camera that sequentially captures the same subject from a plurality of positions in a time-division manner,
A distance measuring device for measuring the distance of the subject,
A camera, wherein the distance measuring device operates the distance measuring device prior to the first photographing of the time division, and does not operate the second or subsequent time.

(4) distance measuring means for measuring the distance to the subject;
Photographing means having a photographing lens for photographing the subject from a plurality of different photographing positions;
Calculating means for calculating the effective range of the exposure image from the angle of view of the shooting lens, the distance measurement result, and the difference between the plurality of shooting positions;
Recording means for performing magnetic recording on a magnetically recordable film;
In a camera having
A camera, wherein the output of the arithmetic means is recorded at a corresponding film position by the recording means.

(5) a distance measuring device having a light projecting means for sequentially projecting light for distance measurement in order to measure a plurality of points in a screen;
A plurality of photographing lenses provided so as to be able to photograph the same subject from a plurality of positions,
A camera wherein the direction in which the distance measuring light is sequentially moved and the direction in which the plurality of photographing lenses are arranged are aligned.

(6) a plurality of photographing lenses provided so that the same subject can be photographed simultaneously from a plurality of positions;
A plurality of shutters respectively provided between the plurality of photographing lenses and the film,
Switching means for controlling switching between a mode for controlling only one of the plurality of shutters according to an operation state of a switch and a mode for simultaneously controlling all of the plurality of shutters;
Winding means for winding the film after the shutter control;
In a camera having
A camera wherein the winding means controls the film winding amount in accordance with the operation means.

(7) The camera according to (6), further including an aperture diameter switching unit configured to switch and control a size of the maximum aperture of the shutter according to an operation state of the switch.

(8) distance measuring means having a plurality of distance measuring points in a shooting screen;
Shift means capable of shifting the exposure light flux to the film according to the output of the distance measuring means,
With respect to the exposure light beam by the shift means, control means for exposing at least a light beam that does not shift and a shifted light beam to different positions of the film,
Recording means for recording shooting information on the film,
A camera capable of taking a three-dimensional photograph, comprising:

(9) In the camera according to (1),
The shift means is characterized in that subject light beams having different incident angles are applied to the film to change the image forming state.

(10) distance measuring means having a plurality of distance measuring points in a shooting screen;
Position changing means for changing the photographing position of the camera from a predetermined first position to a second position in response to an output of the distance measuring means;
Recording means for recording shooting information on film;
With
A camera capable of taking a stereoscopic photograph, wherein the same subject is photographed again at the second position after photographing at the first position.

(11) distance measuring means having a plurality of distance measuring points in a shooting screen;
Optical means for changing the optical path of each of the subject luminous fluxes passing through a pair of split exit pupil positions of the taking lens,
Pupil control means for controlling the distance between the pair of pupils in response to an output of the distance measuring means,
Recording means for recording shooting information on film;
A camera capable of taking a three-dimensional photograph, comprising:

(12) distance measuring means for measuring a subject distance;
A pair of photographing optical systems which are focused in response to the output of the distance measuring means and are arranged at a predetermined interval;
Recording means for recording shooting information on film;
A camera capable of taking a three-dimensional photograph, comprising:

(13) In a camera comprising: a distance measuring device for measuring a distance to a subject; photographing means for photographing the subject from a plurality of different positions; and control means for controlling a difference between the plurality of photographing positions. Means for determining a difference between the photographing positions according to a distance measurement result of the distance measuring device.

(14) a mode switch for setting a mode for photographing a stereoscopic photograph, photographing means for photographing a subject from a plurality of different positions when the mode switch is set, and recording means for recording on a film having a magnetic recording unit. Wherein the plurality of exposure positions form one stereoscopic photograph in a magnetic recording section corresponding to a plurality of exposure positions of a film used in accordance with the plurality of photographing positions. A camera characterized by recording the information shown.

(15) Distance measuring means for measuring a plurality of points on a shooting screen, determining means for determining a difference between a main subject distance and other subject distances from the plurality of distance measurement results, A camera comprising: photographing means for photographing a subject; and warning means for issuing a warning in accordance with the difference between the determination means and the plurality of photographing positions.

(16) In a camera capable of forming a stereoscopic image,
Distance measuring means for detecting the distance to the subject;
Photographing means for photographing the subject from a plurality of different positions;
Measuring means for measuring the depth (Δl) of the object based on the distance measurement result of the distance measuring means;
Control means for controlling a position difference between the plurality of photographing positions, based on a measurement result of the measurement means,
A camera comprising:

(17) In a camera capable of forming a stereoscopic image,
Recording means for recording a subject on an image recording medium from a plurality of different positions;
Switching means for switching settings between a first mode for forming a stereoscopic image and a second mode for forming a normal image;
With
The camera, wherein the recording unit records the subject image on the image recording medium by a different method according to a setting state of the switching unit.

(18) The recording means is:
When the first mode is set, the subject image is discretely recorded on the image recording medium,
When the second mode is set, the subject image is continuously recorded on the image recording medium.
The camera according to (17), wherein:

  An embodiment of the present invention provides a camera that can easily and quickly record an image having a three-dimensional effect even by a general user by effectively using ranging information.

  Further, it is possible to record the subject image on the image recording medium in a different manner according to the setting state of the switching means, and to appropriately record the subject image on the image recording medium regardless of whether the 3D mode is set. Provide a possible camera.

FIG. 2 is a diagram illustrating a configuration of a camera capable of taking a stereoscopic photograph according to the first embodiment. FIG. 1 is an external view of a camera capable of taking a stereoscopic photograph according to a first embodiment. FIG. 9 is a diagram for explaining the reason why the slide amount of the camera platform is made variable according to the distance measurement result in the first embodiment. FIG. 2 is a diagram illustrating the configuration of a camera capable of taking a stereoscopic photograph according to the first embodiment in more detail. FIG. 5 is a diagram for describing photographing point information recorded on a film 22 in the first embodiment. FIG. 6 is a diagram illustrating unnecessary unbalanced portions θF3 and θF4 of an image in the first embodiment. 6 is a flowchart for explaining in detail the operation of the camera capable of taking a stereoscopic photograph according to the first embodiment. It is a figure which shows and shows the structure of the camera which can take a stereoscopic photograph concerning 2nd Example. FIG. 2A is a diagram showing a detailed arrangement of a distance measuring optical system, a photographing lens 9, a mirror 31, a film 22, and the like, and FIG. 2B is a diagram showing how these are laid out on a camera body 8. FIG. 2A is a diagram illustrating a shooting scene according to an example, and FIG. 2B is a diagram illustrating a relationship between a subject position x and a distance l. FIG. 7 is a diagram illustrating a recording method on a film according to a second embodiment. FIG. 11 is a diagram for explaining an operation of a camera capable of taking a stereoscopic photograph according to the second embodiment. FIG. 13 is a diagram illustrating a configuration of a camera capable of taking a stereoscopic photograph according to a third embodiment. 11 is a flowchart for explaining the operation of the camera capable of taking a stereoscopic photograph according to the third embodiment. FIG. 13 is a diagram illustrating the configuration and appearance of a lens and a shutter of a camera capable of taking a stereoscopic photograph according to a third embodiment.

Explanation of reference numerals

  DESCRIPTION OF SYMBOLS 1 ... Distance measuring part, 2 ... Photographing part, 3 ... Photographing position switching part, 4 ... Recording part, 5 ... Mode switch, 6 ... Head, 7 ... Release Switch, 8 camera, 9 photographing lens, 10 control unit.

Claims (3)

Shooting optics,
Two openings provided in the optical path of the photographing optical system;
A mirror that reflects the two subject images divided by the two openings,
Recording means for recording each subject image inverted by being reflected by the mirror, and reversal correction information for reversing each subject image to a correct image;
A camera comprising:   2. The camera according to claim 1, wherein the inversion correction information is information used when printing a subject image recorded in the recording unit. A distance measuring unit that detects a subject distance; and a switching unit that switches and controls an interval between the two openings in accordance with a distance measurement result of the distance measuring unit.
3. The camera according to claim 1, wherein the upper recording unit records information for correcting an image position shift caused by the switching control by the switching unit.

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