JP2010166116A - View finder system and imaging apparatus including the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a view finder system capable of easily performing photographing by changing a viewing angle according to a focus distance and a subject, and to provide an imaging apparatus including the view finder system. <P>SOLUTION: The view finder system includes a through image display section T for displaying real-time images, a view finder V including the through image display section T, a display control means 1 for displaying images on the through image display section T, and a photographing state acquisition means 2 for acquiring a photographing state. The display control means 1 controls the viewing angle to through images displayed on the through image display section T without nearly changing a visual field rate according to a state acquired by the photographing state acquisition means 2. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a viewfinder system for observing an object image displayed on a display unit, and an imaging apparatus including the viewfinder system.

  In general, the electronic viewfinder (EVF) has the same field of view in the viewfinder even when the focal length of the lens is different.

  In addition, a technique for enlarging and displaying a viewfinder image during MF is disclosed (Patent Document 1).

JP 2003-189136 A

  The technique described in Patent Document 1 has a problem that it is difficult to determine the composition and focus when photographing.

  The present invention has been made in view of these problems of the prior art, and an object of the present invention is to provide a viewfinder system capable of easily photographing by changing a viewing angle according to a focal length or a subject, and the viewfinder system. An imaging device is provided.

  A viewfinder system according to the present invention that achieves the above object includes a through image display unit that displays a real-time image, a viewfinder that includes the through image display unit, and a display control that displays an image on the through image display unit. And a shooting state acquisition unit for acquiring a shooting state, wherein the display control unit is provided in the through image display unit without substantially changing the field of view according to the state acquired by the shooting state acquisition unit. Controlling the viewing angle with respect to the through image to be displayed.

  According to the present invention, since the viewing angle with respect to the through image can be changed according to the shooting situation, it is possible to obtain a viewfinder system and an imaging apparatus including the viewfinder system that can perform shooting easily and perform optimal shooting. Can do.

It is a figure showing an imaging device concerning an embodiment of the present invention. 1 is a system block diagram of a viewfinder system according to the present invention. It is a figure which shows the viewing angle with respect to the through image of the viewfinder system which concerns on this invention. It is a figure which shows the viewing angle with respect to the through image of the viewfinder system which concerns on this invention. 1 is a system block diagram of a first embodiment of a viewfinder according to the present invention. It is a figure which shows control of the viewing angle in case a focal distance is a wide angle. It is a figure which shows control of the viewing angle when a focal distance is telephoto. It is a system block diagram of 2nd Embodiment of the viewfinder which concerns on this invention. It is a figure which shows control of the viewing angle according to recognition of a face recognition means. It is a system block diagram of 3rd Embodiment of the viewfinder which concerns on this invention. It is a figure which shows control of the viewing angle according to the memory | storage of a locus | trajectory memory | storage means. It is a system block diagram of 4th Embodiment of the viewfinder which concerns on this invention. It is a system block diagram of 5th Embodiment of the viewfinder which concerns on this invention. It is a system block diagram of 6th Embodiment of the viewfinder which concerns on this invention. It is sectional drawing of the optical system of the viewfinder system of 6th Embodiment. It is a system block diagram of 7th Embodiment of the viewfinder which concerns on this invention. It is a system block diagram of 8th Embodiment of the viewfinder which concerns on this invention. It is a system block diagram which combined all the 1st-8th embodiment of the viewfinder which concerns on this invention. It is a figure which shows the structure of the digital camera which is an example of the imaging device of this invention. It is a figure which shows the structure at the time of applying the imaging device of this invention to a silver salt camera.

  The viewfinder system of the present embodiment and an image pickup apparatus including the viewfinder system will be described below.

  The viewfinder system of the present embodiment acquires a through image display unit on which a real-time image is displayed, a viewfinder having a through image display unit, display control means for displaying an image on the through image display unit, and a shooting state. And a display control unit that controls a viewing angle with respect to a through image displayed on the through image display unit without substantially changing a viewing rate according to the state acquired by the shooting state acquisition unit. It is preferable.

  Since the viewing angle for the through image can be changed according to the shooting situation, it is easy to determine the composition and focus. That is, shooting is facilitated and optimal shooting can be performed.

  Moreover, it is preferable that the photographing state acquisition unit includes a lens focal length detection unit that detects a focal length of the photographing lens.

  The viewing angle with respect to the through image can be changed in accordance with the focal length, so that photographing becomes easy and optimum photographing can be performed.

  In addition, when the focal length detected by the lens focal length detection unit is wide, the viewing angle for the through image is reduced, and when the focal length detected by the lens focal length detection unit is telephoto, the viewing angle for the through image is increased. Is preferred.

  By controlling in this way, the entire composition can be seen at a time in the case of a wide angle, and focusing is easy in the case of a telephoto.

  Moreover, it is preferable that the photographing state acquisition unit includes a subject recognition unit that recognizes the subject and the state of the subject.

  By changing the viewing angle with respect to the through image in accordance with the subject and the state of the subject, for example, a person can be seen large and a landscape can be seen as a whole, so that photographing is facilitated and optimum photographing can be performed.

  The subject recognition means preferably has size recognition means for recognizing the size of the subject.

  The viewing angle with respect to the through image can be changed so that the subject is displayed in a large size, so that photographing becomes easy and optimum photographing can be performed.

  The subject recognition means preferably includes face recognition means for recognizing the characteristics of a person's face and determining the subject as a person.

  The viewing angle with respect to the through image can be changed so that the face of the person becomes larger, so that shooting becomes easier and optimum shooting can be performed.

  Moreover, it is preferable that the subject recognition unit has an operation recognition unit that recognizes the movement of the subject.

  When the movement of the subject is fast, the viewing angle with respect to the through image is reduced to make it easier to follow, and when the movement of the subject is slow or stopped, the viewing angle with respect to the through image can be increased and shooting is easy. Therefore, the optimum shooting can be performed.

  The subject recognition means preferably has a selection means for selecting a subject.

  When there are a plurality of subjects, it is possible to select a subject to be noticed, so that photographing is facilitated and optimum photographing can be performed.

  Moreover, it is preferable that an imaging | photography state acquisition means has a gaze recognition means which recognizes a photographer's gaze.

  Since it can be displayed largely around the place where the photographer's line of sight gathers, it becomes easier to shoot and optimal shooting can be performed.

  Moreover, it is preferable that the photographing state acquisition unit includes a finder operation recognition unit that recognizes the movement of the viewfinder.

  The viewing angle with respect to the through image can be changed in accordance with the movement of the photographer, so that photographing becomes easy and optimum photographing can be performed.

  Moreover, it is preferable that the photographing state acquisition unit includes a focus state recognition unit that recognizes the focus state.

  The viewing angle with respect to the through image can be changed according to the state of focus, so that shooting is facilitated and optimal shooting can be performed.

  The display control means preferably has display viewing angle control means for controlling the display viewing angle of the through image.

  By controlling the display viewing angle of the through image, the viewing angle with respect to the through image can be changed, so that photographing becomes easy and optimum photographing can be performed.

  The display control means preferably has display area control means for controlling the display area of the through image.

  By controlling the display area of the live view image, the viewing angle with respect to the live view image can be changed in a pseudo manner, so that shooting can be facilitated and optimum shooting can be performed.

  Moreover, it is preferable to provide an operation means for operating the display control means.

  The photographer can adjust the optimum display by himself, so that photographing becomes easy and optimum photographing can be performed.

  Moreover, it is preferable that the subject to be displayed on the through image display unit is within the effective viewing angle.

  By being within the effective viewing angle, the subject can be easily seen, photographing becomes easy, and optimum photographing can be performed.

  Moreover, it is preferable to provide a viewfinder system in an imaging device.

  Shooting becomes easy and optimal shooting can be performed.

  Hereinafter, a viewfinder system and an imaging apparatus including the viewfinder system will be described with reference to the drawings.

  FIG. 1 is a diagram illustrating an imaging apparatus C according to the embodiment. The imaging device C includes a main body C1 and a viewfinder V provided in the main body C1. Note that D is a rear image display element, which is arranged at a position where it can be observed from the same direction as the liquid crystal display element LCD. The image display element is not limited to the LCD. For example, an organic EL can be used as the image display element.

  The viewfinder V is an electronic viewfinder (EVF), which includes at least a liquid crystal display element LCD, and further includes an eyepiece optical system O (not shown) and an eyepiece P. Here, the liquid crystal display element LCD is a display unit, and an image of an object is displayed on the liquid crystal display element LCD. The eyepiece optical system O is an optical system that guides an image displayed on the liquid crystal display element LCD to the eyes of the observer. Further, the eyepiece P is a portion that is viewed by an observer and is disposed on the observer side of the eyepiece optical system O. The display unit is not limited to the LCD. For example, an organic EL can be used as the display unit.

  The liquid crystal display element LCD includes a through image display unit T on which a real-time image is displayed, and a field mask M. The through image display unit T is preferably larger than the field mask M.

  FIG. 2 is a system block diagram of the viewfinder system according to the present invention.

  As shown in FIG. 2, the viewfinder system includes a display control unit 1 and a shooting state acquisition unit 2.

  The display control means 1 displays an image on the liquid crystal display element LCD. A real-time through image is displayed on the through image display unit T of the liquid crystal display element LCD.

  The photographing state acquisition unit 2 acquires the state of a lens, a subject, a photographer, or the like.

  In the viewfinder system according to the present invention, the display control unit 1 controls the viewing angle with respect to the through image without substantially changing the viewing rate in accordance with the state acquired by the shooting state acquisition unit 2.

  3 and 4 are diagrams showing the viewing angle with respect to the through image of the viewfinder system according to the present invention.

  As shown in FIG. 3, the through image display portion of the liquid crystal display element LCD is T, and the virtual image when the through image display portion T is viewed through the optical system L is T ′. If the angle formed between the straight line connecting the eye point E and the outer frame portion of the virtual image T ′ and the optical axis is θ, the viewing angle with respect to the through image is 2θ. The liquid crystal display element LCD may be a screen mat.

  Further, as shown in FIG. 4, there are cases where a viewfinder for directly viewing an image displayed on the image display element and an image displayed on the rear image display element are directly viewed. The viewing angle with respect to the through image in this case is an angle 2θ determined at both ends of the through image display portion T (outer frame portion) of the image display element.

  FIG. 5 is a system block diagram of the first embodiment of the viewfinder system according to the present invention.

  As shown in FIG. 5, the viewfinder system of the first embodiment includes a lens focal length detection unit 21 as the photographing state acquisition unit 2.

  The lens focal length detection means 21 detects the focal length of the photographing lens.

  In the first embodiment, the display control unit 1 controls the viewing angle with respect to the through image without substantially changing the viewing rate in accordance with the focal length of the photographing lens detected by the lens focal length detection unit 21.

  FIG. 6 is a diagram illustrating the control of the viewing angle when the focal length is a wide angle.

  In FIG. 6, since the focal length of the taking lens is a wide angle, a wide range is to be taken. In this case, since it is important to be able to confirm the overall composition, it is preferable that the photographing range can be viewed widely. Therefore, as shown in FIGS. 6A to 6B, it is preferable to reduce the image displayed on the through image display portion T of the liquid crystal display element LCD, that is, to reduce the viewing angle with respect to the through image.

  FIG. 7 is a diagram illustrating the control of the viewing angle when the focal length is telephoto.

  In FIG. 7, since the focal length of the taking lens is telephoto, the subject is being taken up. In this case, it is preferable to focus on the subject (to one point) so that focusing can be performed. Therefore, as shown in FIGS. 7A to 7B, it is preferable to increase the image displayed on the through image display unit T of the liquid crystal display element LCD, that is, to increase the viewing angle with respect to the through image.

  FIG. 8 is a system block diagram of the second embodiment of the viewfinder system according to the present invention.

  As shown in FIG. 8, the viewfinder system of the second embodiment includes a subject recognition unit 22 as the shooting state acquisition unit 2.

  The subject recognition unit 22 recognizes the subject and the state of the subject.

  In the second embodiment, the display control unit 1 controls the viewing angle with respect to the through image without substantially changing the viewing rate in accordance with the subject recognized by the subject recognition unit 22 and the state of the subject.

  In the first embodiment, the subject recognition unit 22 recognizes a subject. For example, when there are persons, animals, objects, etc. in the through image, the subject recognition means 22 recognizes these as subjects. In this case, it is preferable to control the image displayed on the through image display unit T of the liquid crystal display element LCD so that the subject is displayed large, that is, to control the viewing angle with respect to the through image. When there is no person in the through image, or when the through image is a landscape such as the sky or grassland, the subject recognition means 22 recognizes that there is no person or features of the landscape such as the sky or grassland (for example, above If it is blue, it is determined to be empty). When the subject is recognized as a landscape, it is preferable to reduce the image displayed on the through image display portion T of the liquid crystal display element LCD, that is, to reduce the viewing angle with respect to the through image so that the whole (wide range) can be seen.

  In the second embodiment, the subject recognition unit 22 includes a size recognition unit 22a.

  The size recognizing means 22a recognizes the contour of the subject, calculates the size of the area within the contour relative to the viewfinder screen, and recognizes the size of the subject.

  In this case, the image displayed on the through image display unit T of the liquid crystal display element LCD is controlled so that the subject is displayed in a large size according to the size of the subject calculated by the size recognition means 22a, that is, the field of view for the through image. It is preferable to control the angle.

  In the third embodiment, the subject recognition unit 22 includes a face recognition unit 22b.

  The face recognition means 22b recognizes the features of a person's face and determines that the subject is a person. For example, it may be determined that a face is detected when eyes or mouth are detected or when a lot of skin colors are detected.

  FIG. 9 is a diagram showing the control of the viewing angle according to the recognition of the face recognition means 22b.

  As shown in FIG. 9, when the face recognizing unit 22b determines that the subject is a person, it is preferable to concentrate on one point to facilitate focusing. In this case, as shown in FIG. 9A to FIG. 9B, it is preferable to increase the image displayed on the through image display portion T of the liquid crystal display element LCD, that is, to increase the viewing angle with respect to the through image.

  In the fourth embodiment, the subject recognition unit 22 includes a motion recognition unit 22c.

  The motion recognition means 22c recognizes the movement of the subject and detects the speed and acceleration of the subject.

  For example, when photographing a child running at an athletic meet, when the speed when a child enters the photographing range is high, it is preferable that a wider range can be photographed. Therefore, when a subject (child) enters the shooting range, the motion recognition means 22c recognizes the motion of the subject and detects the subject moving speed. When it is recognized that the moving speed of the subject is fast, it is preferable to reduce the image displayed on the through image display unit T of the liquid crystal display element LCD, that is, to reduce the viewing angle with respect to the through image.

  In addition, it is preferable that focusing is easy when the motion recognition unit 22c recognizes that the subject is not moving. In this case, it is preferable to increase the image displayed on the through image display portion T of the liquid crystal display element LCD, that is, to increase the viewing angle with respect to the through image.

  The subject recognition unit 22 may include a selection unit 22d that selects a subject.

  The selection unit 22d can select a subject to be noticed when there are a plurality of subjects. For example, it is preferable to select with an AF point or a cursor.

  FIG. 10 is a system block diagram of the third embodiment of the viewfinder system according to the present invention.

  As shown in FIG. 10, the viewfinder system of the third embodiment includes a line-of-sight recognition unit 23 as the photographing state acquisition unit 2.

  The line-of-sight recognition means 23 recognizes the line of sight of the photographer.

  In the third embodiment, the display control unit 1 controls the viewing angle with respect to the through image without substantially changing the viewing rate in accordance with the state of the sight line of the photographer recognized by the sight line recognition unit 23. For example, it is preferable to display a place where the photographer's line of sight is large at the center of the through image display portion T of the liquid crystal display element LCD.

  FIG. 11 is a diagram illustrating the control of the viewing angle according to the storage of the trajectory storage unit 23a.

  The line-of-sight recognizing means 23 preferably has a locus storage means 23a for storing the locus of the photographer's line of sight.

  When the moving range of the trajectory of the photographer's line of sight stored in the trajectory storage unit 23a is narrow, as shown in FIG. 11A, the image displayed on the through image display unit T of the liquid crystal display element LCD is enlarged, That is, it is preferable to increase the viewing angle for the through image.

  When the movement range of the trajectory of the photographer's line of sight stored in the trajectory storage unit 23a is wide, as shown in FIG. 11B, an image displayed on the through image display unit T of the liquid crystal display element LCD is displayed. It is preferable that the viewing angle for the through image is small, that is, small.

  FIG. 12 is a system block diagram of the fourth embodiment of the viewfinder system according to the present invention.

  As shown in FIG. 12, the viewfinder system of the fourth embodiment includes a finder operation recognition unit 24 as the photographing state acquisition unit 2.

  The viewfinder operation recognition means 24 is for recognizing the movement of an image pickup apparatus equipped with a viewfinder or a viewfinder.

  In the fourth embodiment, the display control unit 1 controls the viewing angle with respect to the through image without substantially changing the viewing rate in accordance with the movement of the viewfinder recognized by the finder motion recognition unit 24. The movement of the viewfinder detects speed, acceleration and the like. For example, when the movement of the viewfinder is fast, it is preferable to reduce the image displayed on the through image display unit T of the liquid crystal display element LCD, that is, to reduce the viewing angle with respect to the through image.

  FIG. 13 is a system block diagram of the fifth embodiment of the viewfinder system according to the present invention.

  As shown in FIG. 13, the viewfinder system of the fifth embodiment includes a focus state recognition unit 25 as the shooting state acquisition unit 2.

  The focus state recognition unit 25 recognizes the focus state.

  In the fifth embodiment, according to the focus state recognized by the focus state recognition unit 25, the display control unit 1 controls the viewing angle with respect to the through image without substantially changing the field of view rate.

  In the case of MF, in order to facilitate focusing, it is preferable to increase the image displayed on the through image display portion T of the liquid crystal display element LCD, that is, to increase the viewing angle with respect to the through image.

  In the case of Spot AF, it is preferable to reduce the image displayed on the through image display unit T of the liquid crystal display element LCD, that is, to reduce the viewing angle with respect to the through image in order to align the spot position.

  When performing the control of the first to fifth embodiments, when the through image is enlarged, it is preferable that the subject is within the effective viewing angle. The effective viewing angle is a range that can be recognized simultaneously with central vision. For example, 30 ° or less is preferable. 22 degrees or less are more preferable.

  Next, the control of the viewing angle for the through image will be described.

  FIG. 14 is a system block diagram of a sixth embodiment of the viewfinder system according to the present invention, and FIG. 15 is a sectional view of the optical system L of the viewfinder system.

  In the viewfinder system of the sixth embodiment as shown in FIG. 3, as shown in FIG. 14, the display control means 1 has a display viewing angle control means 11 for controlling the display viewing angle of the through image. For example, it is preferable that an optical system L having a zoom function is applied as shown in FIG. 15 and the display viewing angle control means 11 adjusts the zoom.

  FIG. 16 is a system block diagram of the seventh embodiment of the viewfinder system according to the present invention.

  In the viewfinder system of the seventh embodiment as shown in FIG. 4, as shown in FIG. 16, the display control means 1 has a display area control means 12 for controlling the display area of the through image. For example, controlling the area of the through image display portion T of the liquid crystal display element LCD is preferable because the viewing angle can be changed in a pseudo manner.

  FIG. 17 is a system block diagram of an eighth embodiment of the viewfinder system according to the present invention.

  Furthermore, as shown in FIG. 17, an operation unit 3 operated by the photographer may be provided, and the photographer may operate the display control unit 1. This is preferable because the user can adjust the optimum display.

  Further, it is preferable that the photographer operates the operation means 3 to control the display viewing angle and to store and select the viewing angle. For example, when viewing a fast-moving subject such as a traveling vehicle, it is preferable to store an appropriate viewing angle so that the vehicle can always be seen at that viewing angle even when the vehicle is out of the shooting range. In addition, it is preferable to determine the composition by reducing the viewing angle, and then change the setting by the operation unit 3 to increase the viewing angle and take a picture while watching a subtle change in the subject.

  FIG. 18 is a system block diagram combining all of the first to eighth embodiments of the viewfinder system according to the present invention.

  As shown in FIG. 18, the first to eighth embodiments according to the present invention can be combined. In addition, when combining, it is not necessary to combine all, and it is possible to combine in various combinations. When combining each embodiment, it is preferable to determine a priority for every embodiment.

  The focal length and focus state of the photographing lens are determined as defaults before photographing regardless of the subject. When shooting starts, first, the subject recognition means 22 recognizes the subject. For example, the size recognition means 22a recognizes the size of the subject, and the face recognition means 22b recognizes the face. Subsequently, the motion recognition means 22c recognizes the state (movement) of the subject. Next, the line of sight of the photographer and the viewfinder operation are recognized in this order. Finally, it recognizes whether there is a change in the lens focal length and focus state.

  For example, it is preferable to change the viewing angle according to the size of the face when a face is detected after changing the viewing angle according to the focal length. It is also preferable to change the viewing angle in accordance with the speed of the subject after the viewing angle is changed according to the subject and then the subject starts moving. Further, after adjusting the viewing angle according to the subject, it is preferable to change the viewing angle when the line of sight moves greatly. Further, after adjusting the viewing angle in accordance with the movement of the finder and then turning the focus ring (MF state), it is preferable to change the viewing angle in accordance with the focus state. It is also preferable to change the viewing angle after selecting the subject after changing the viewing angle in accordance with AF.

  Moreover, it is preferable to provide a viewfinder system in an imaging device.

  FIG. 19 is a diagram illustrating a configuration of a digital camera that is an example of the imaging apparatus of the present invention. In FIG. 19, reference numeral 110 denotes a digital camera which is an image pickup apparatus, and includes an image pickup optical system 101, a filter 102, an image pickup element 103, a controller 104, a built-in memory 105, an electronic viewfinder 106, and an interface 107. Has been.

  In the imaging apparatus, the imaging optical system 101 includes a plurality of optical elements (such as lenses). The light emitted from the object is condensed by the imaging optical system 101, and an object image is formed at the condensing position. An imaging element 103 (light receiving surface) such as a CCD is disposed at this condensing position. The image sensor 103 is composed of a group of photoelectric conversion elements regularly arranged. Further, a filter 102 having a low-pass effect is disposed between the imaging optical system 101 and the imaging element 103 in order to prevent the occurrence of a moire phenomenon. Further, an infrared cut filter for cutting infrared light may be arranged.

  The light beam incident on the image sensor 103 is converted into an electric signal (image signal) by the photoelectric conversion element. This electrical signal is input to the controller 104. Here, the controller 104 performs signal processing such as gamma correction and image compression processing on the electrical signal. The electric signal subjected to the signal processing is output to the personal computer 109 or the like via the built-in memory 105 or the interface 107.

  The electronic viewfinder 106 includes an illumination system, an image display element, an eyepiece optical system (eyepiece lens), and the like. Here, the eyepiece optical system O of the above embodiment is used for the eyepiece optical system. Further, as the image display element, the reflection type display element of the above embodiment is used. This image display element is controlled by the controller 104. With such a configuration, the electronic viewfinder 106 allows an observer to observe an image of an object to be imaged or a captured image. In addition, image data can be sent from the built-in memory 105 to the auxiliary memory 108. On the other hand, the same image data can be sent from the interface 107 to the personal computer 109.

  FIG. 20 shows a configuration when the imaging apparatus of the present invention is applied to a silver salt camera. As shown in FIG. 20, the silver salt camera 120 includes an imaging optical system 111, a film 112, an objective lens 113, an imaging element 114 such as a CCD, a first controller 115, and another second controller 116. And have. Further, similarly to the digital camera of FIG. 19, a built-in memory 105 and an electronic viewfinder 106 are provided. As illustrated, the imaging optical system 111 and the objective lens 113 are different optical systems.

  In the silver salt camera 120 shown in FIG. 20, the light flux from the object is condensed by the imaging optical system 111, and an object image is formed at this condensing position (first condensing position). The film 112 is disposed at the first light collecting position. The light beam emitted from the object is condensed by the objective lens 113, and an object image is formed at this condensing position (second condensing position). An imaging element 114 such as a CCD is disposed at the second light collection position. The image sensor 114 is composed of a group of photoelectric conversion elements regularly arranged.

  The light beam incident on the image sensor 114 is converted into an electric signal (image signal) by the photoelectric conversion element. This electrical signal is input to the first controller 115. The first controller 115 performs signal processing such as gamma correction and image compression processing. The electric signal subjected to the signal processing is sent to the image display element. As described above, the electronic viewfinder 106 includes an illumination system, an image display element, an eyepiece optical system (eyepiece lens), and the like. The eyepiece optical system O of this embodiment is used for the eyepiece optical system. Through this electronic viewfinder 106, the photographer can observe an image of an object to be imaged.

  On the other hand, the user (observer) can observe an image obtained by imaging using information stored in the built-in memory 105. Such control is performed by the first controller 115.

  Further, a second controller 116 is provided for controlling the imaging optical system 111. The second controller 116 causes the imaging optical system 111 to perform operations such as zooming and focusing. Information such as zooming and focusing is recognized by the first controller 115 based on the signal from the second controller 116. Based on this recognition, the first controller 115 can adjust the image displayed on the image display element in accordance with the imaging angle of view (zooming). Further, based on information such as focusing, correction of the range of the image displayed on the image display element (parallax correction) may be performed. Further, the signal from the first controller 115 may be sent to the built-in memory 105 or an interface (not shown). These signals (information) may be output to a personal computer or the like via an interface.

  Further, an optical path dividing element may be disposed between the imaging optical system 111 and the film 112. An image of the object may be formed on the image sensor 114 by guiding a light beam from the object to the viewfinder through the optical path dividing element. And you may make it observe based on this object image. In this case, it is not necessary to use the objective lens 113.

  As described above, the viewfinder system of the present invention and the imaging apparatus including the viewfinder system have been described based on the embodiments. However, the present invention is not limited to these embodiments, and various modifications are possible.

C ... Imaging apparatus C1 ... Main body V ... Viewfinder D ... Rear image display element LCD ... Liquid crystal display element O ... Eyepiece optical system T ... Through image display unit M ... Field mask 1 ... Display control means 2 ... Subject recognition means 21 ... Lens Focal length detection means 22 ... subject recognition means 22a ... size recognition means 22b ... face recognition means 22c ... motion recognition means 22d ... selection means 23 ... gaze recognition means 23a ... trajectory storage means 3 ... operation means 101 ... imaging optical system 102 ... filter DESCRIPTION OF SYMBOLS 103 ... Image sensor 104 ... Controller 105 ... Built-in memory 106 ... Electronic viewfinder 107 ... Interface 108 ... Auxiliary memory 109 ... Personal computer 110 ... Digital camera 111 ... Imaging optical system 112 ... Film 113 ... Objective lens 114 ... Image sensor 115 ... 1st One controller 116 ... 2 of the controller 120 ... silver-halide camera

Claims (16)

A through image display section for displaying real-time images;
A viewfinder having the through image display unit;
Display control means for displaying an image on the through image display unit;
Shooting state acquisition means for acquiring a shooting state;
With
The view control unit controls a viewing angle with respect to a through image displayed on the through image display unit without substantially changing a viewing rate according to a state acquired by the photographing state acquisition unit. system. The viewfinder system according to claim 1, wherein the photographing state acquisition unit includes a lens focal length detection unit that detects a focal length of the photographing lens. If the focal length detected by the lens focal length detection means is a wide angle, reduce the viewing angle for the through image,
The viewfinder system according to claim 2, wherein when the focal length detected by the lens focal length detection means is telephoto, the viewing angle with respect to the through image is increased. The viewfinder system according to claim 1, wherein the photographing state acquisition unit includes a subject recognition unit that recognizes a subject and a state of the subject. The viewfinder system according to claim 4, wherein the subject recognition unit includes a size recognition unit that recognizes a size of a subject. 6. The viewfinder system according to claim 4, wherein the subject recognition means includes face recognition means for recognizing a feature of a person's face and determining that the subject is a person. The viewfinder system according to claim 4, wherein the subject recognition unit includes an operation recognition unit that recognizes a movement of the subject. The viewfinder system according to claim 4, wherein the subject recognition unit includes a selection unit that selects a subject. The viewfinder system according to any one of claims 1 to 8, wherein the shooting state acquisition unit includes a line-of-sight recognition unit that recognizes a line of sight of a photographer. The viewfinder system according to any one of claims 1 to 9, wherein the photographing state acquisition unit includes a finder operation recognition unit that recognizes movement of a viewfinder. The viewfinder system according to claim 1, wherein the photographing state acquisition unit includes a focus state recognition unit that recognizes a focus state. The viewfinder system according to claim 1, wherein the display control unit includes a display viewing angle control unit that controls a display viewing angle of a through image. 13. The viewfinder system according to claim 1, wherein the display control unit includes a display area control unit that controls a display area of a through image. The viewfinder system according to any one of claims 1 to 13, further comprising operation means for operating the display control means. The viewfinder system according to any one of claims 1 to 14, wherein a subject to be displayed on the through image display unit is within an effective viewing angle.   An imaging apparatus comprising the viewfinder system according to any one of claims 1 to 15.

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