JP2017198734A - Camera with built-in stroboscope - Google Patents

Abstract

There is provided a camera with a built-in strobe that allows anyone to easily take excellent pictures without having a complicated and expensive structure. A housing 11 is provided on a front surface of the housing 11 to receive light reflected from a subject. The housing 11 is provided on an upper surface of the housing 11 and is orthogonal to a light receiving surface of the photographing lens 12. An upper surface strobe including a light emitting surface. [Selection] Figure 1

Description

  The present invention relates to a camera with a built-in strobe.

  Conventionally, digital cameras have been provided with built-in strobes. This is because, when the subject is dark, when the user of the digital camera presses the shutter button, the built-in strobe is activated automatically or according to the previous operation settings, and light is emitted toward the subject from the strobe light emission window. It will be. For example, Patent Document 1 discloses a camera with a built-in strobe having a built-in strobe.

JP 2007-33715 A

  However, when various objects such as a table are present between the camera with a built-in strobe and the subject, the object is exposed to strobe light, and the subject that should be brightened in the photographed image becomes dark. On the other hand, the object existing between the camera with a built-in flash and the subject is irradiated with relatively strong light, and the object becomes white in the photographed image, and it is difficult to recognize the object. become. That is, the photographed image is not only difficult to recognize because the original subject is dark, but also the objects around the subject are whitened, resulting in a very poor result.

  In particular, in a camera having a function of receiving and evaluating strobe light reflected by a subject and an object existing around the subject and adjusting the light emission amount and ISO sensitivity of the strobe according to the evaluation result, the above-described problem is remarkable. And the subject becomes a dark picture. This is because even if the amount of strobe light reaching the subject is small, the reflected light from the object that is in trouble compared to the subject is received, and it is determined that the strobe light has reached sufficiently. is there.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a camera with a built-in strobe that allows anyone to easily take excellent photographs without providing a special and expensive structure. There is to do.

  In order to achieve the above-described object, a camera with a built-in strobe according to the present invention is provided on the front surface of the housing, the photographing lens that receives light reflected from the subject, and the upper surface of the housing. An upper surface strobe having a light emitting surface orthogonal to the light receiving surface of the photographing lens.

  In the present invention, since the strobe light is emitted from the upper surface of the housing of the built-in strobe camera, the strobe light is emitted above the subject without being affected by the object existing between the strobe-equipped camera and the subject. Irradiation can be performed efficiently. Therefore, even if a special and expensive structure is not used, anyone can easily take an excellent photograph.

  In the above-described camera with a built-in strobe, the top strobe has a strobe window that transmits the strobe light and a cover that exposes / shields the strobe window, and at least one surface of the cover reflects the strobe light. May be. In this case, a hinge for rotatably supporting the lid body may be further provided, and a surface of the lid body facing the strobe window may reflect strobe light. In these cases, the light emitted to the rear of the camera with a built-in strobe can be emitted toward the subject, and the strobe light can be efficiently emitted toward the subject.

  In any of the cameras with built-in strobes described above, the ratio of the front strobe with a light exit surface arranged in parallel with the light receiving surface of the photographing lens, the amount of light emitted from the front strobe, and the amount of light emitted from the top strobe is controlled. Light emission control means. This makes it possible to freely change the ratio of the amount of light emitted from the front strobe and the amount of light emitted from the upper strobe, making it easy to irradiate optimal strobe light according to the shape and characteristics of the subject and the surrounding environment of the subject. Can be done.

  In any of the above-described cameras with built-in strobes, the front strobe and the upper strobe may have a common light source or may have light sources independent of each other. Thereby, it is possible to reduce the cost by reducing the number of parts, or to adjust the light emission amount and the color temperature for each strobe.

  According to the present invention, anyone can easily take an excellent photograph without a special and expensive structure.

1 is a perspective view of a flash built-in camera according to Embodiment 1. FIG. 1 is a side view of a flash built-in camera according to Embodiment 1. FIG. FIG. 2 is a side view of the camera with built-in strobe according to the first embodiment when the strobe is used. FIG. 10 is a perspective view of a camera with a built-in strobe according to a second embodiment. 6 is a side view of a camera with a built-in strobe according to Embodiment 2. FIG. FIG. 5 is a schematic configuration diagram of a strobe of a camera with a built-in strobe according to a second embodiment.

  Hereinafter, preferred embodiments of a camera with built-in flash according to the present invention will be described in detail with reference to the drawings. In addition, this invention is not limited to the content demonstrated below, In the range which does not change the summary, it can change arbitrarily and can implement. In addition, the drawings used for the description of each embodiment schematically show a camera with a built-in strobe according to the present invention, and are partially emphasized, enlarged, reduced, omitted or the like to deepen understanding. In some cases, the scale, shape, etc. of each component are not accurately represented. Furthermore, the various numerical values used in each embodiment are merely examples, and can be variously changed as necessary.

<Example 1>
First, the structure of a flash built-in camera 10 according to an embodiment of the present invention will be described with reference to FIGS. 1 to 3. Here, FIG. 1 is a perspective view of the camera 10 with built-in strobe according to the present embodiment. FIG. 2 is a side view of the camera 10 with built-in strobe according to the present embodiment. FIG. 3 is a side view of the built-in flash camera 10 according to the present embodiment when the flash is used.

  As can be seen from FIGS. 1 to 3, the camera 10 with a built-in strobe according to the present embodiment is provided with various functional components in a rectangular parallelepiped casing 11. Specifically, the camera with a built-in strobe 10 has a photographic lens 12 on the first surface 11a (ie, front) side of the housing 11. Moreover, the camera 10 with built-in strobe includes a lid body 13 that shields an upper surface strobe window, which will be described later, on the second surface 11b (that is, upper surface) side of the housing 11, and a hinge that rotatably supports the lid body 13. 14. Furthermore, the camera 10 with a built-in flash has a power button 15 and a shutter button 16 on the second surface 11b side.

  Although not shown, a monitor, various menu buttons, and various function switches are provided on the back surface of the housing 11 (that is, the surface opposite to the first surface 11a) (all are shown). ) Further, an optical finder window may be provided on the first surface 11 a of the housing 11, and an optical finder may be provided on the back surface of the housing 11.

  In this embodiment, a thin plate-like casing 11 is used to constitute a general thin type compact digital camera. The shape of the casing 11 constitutes a relatively large camera such as a single-lens reflex camera. May be. The power button 15 is a button that is operated every time the power of the camera 10 with built-in strobe is turned on / off. The shutter button 16 is a button for starting shooting when the built-in flash camera 10 is in the shooting mode. Further, the shutter button 16 also functions as a button for confirming and executing various menus displayed on the monitor.

  The photographing lens 12 is a lens for receiving light reflected from a subject, and is a known camera lens. In the present embodiment, the photographing lens 12 is provided so as to protrude from the housing 11, but may be incorporated in the housing 11. When the photographic lens 12 is built in the housing 11, the shutter that covers the photographic lens 12 is opened when the power button 15 is turned on, and the photographic lens 12 is exposed to the outside. Also good.

  As shown in FIGS. 2 and 3, the hinge 14 is provided on one end side of the lid 13 (the back side of the camera 10 with built-in strobe), and the lid 13 rotates 45 degrees with the hinge 14 as a base point. As a result, when the strobe is used, the lid 13 turns and stands up, and the upper strobe window 17 is exposed at the second surface 11 b of the housing 11. A strobe light source 21 is provided inside the housing 11, and strobe light is emitted from the strobe light source 21, passes through the upper strobe window 17, and is emitted to the outside of the housing 11. As the strobe light source 21, for example, a general light source such as a xenon lamp can be used, but an LED light source may be used.

  In addition, the surface of the lid 13 facing the upper strobe window 17 (that is, the surface of the lid 13 disposed inside the housing 11) is provided with a reflector or mirror finish. As a result, when the lid 13 stands up when the strobe is used, the light emitted toward the rear of the camera 10 with a built-in strobe is reflected by the lid 13 and travels toward the front of the camera 10 with a built-in strobe. become. That is, the strobe light emitted from the camera 10 with built-in strobe is reflected by the first strobe light A that travels forward of the camera 10 with built-in strobe without being reflected by the lid 13 and the built-in strobe by being reflected by the lid 13. The second strobe light B traveling toward the front of the camera 10 is formed. Such a reflection function of the lid 13 eliminates useless light that is emitted to the rear of the camera 10 with a built-in strobe, and can efficiently emit strobe light toward the subject.

  In the present embodiment, the upper strobe 31 is composed of the upper strobe window 17 and the strobe light source 21. Accordingly, the upper strobe 31 has a light emission surface (upper strobe window 17) provided on the upper surface of the housing 11 and orthogonal to the light receiving surface of the photographing lens 12.

  In the present embodiment, the light emission amount of the upper strobe 31 may be automatically adjusted by a control device (not shown) provided inside the housing 11 according to the light amount received by the photographing lens 12. Alternatively, a light emission amount adjustment dial may be provided on the surface of the housing 11 so that the operator of the camera 10 with built-in flash manually determines the light emission amount of the upper strobe 31.

  In the built-in strobe camera 10 according to the present embodiment, the strobe window is not provided on the first surface 11a of the housing 11, but the upper strobe window 17 is provided only on the second surface 11b. As a result, the strobe light is not directly emitted toward the front of the subject, and the strobe light is emitted so as to brighten the top of the subject. Therefore, the strobe light is not irradiated to an object existing between the camera 10 with a built-in strobe and the subject, and the strobe light is not reflected by the object and returned to the camera 10 with a built-in strobe. That is, in the photographed image, the influence of the reflected light by the object does not occur, and an unsatisfactory photograph in which the subject is dark and the object existing in front of the subject glows white is not produced. In particular, even when the amount of light emitted from the upper strobe 31 is automatically adjusted, it is not determined that the strobe light is sufficiently delivered even though the amount of strobe light is insufficient. Can be adjusted with better accuracy.

  In this embodiment, by changing the position where the strobe window is provided to the upper surface, it is possible to solve the problem that anyone who can not solve the problem can easily take a good picture. Become. Further, since no special or expensive strobe device or the like is required, it is possible to take an excellent photograph without increasing the cost of the camera 10 with built-in strobe.

<Example 2>
Next, a camera with a built-in strobe having two strobes will be described as a second embodiment with reference to FIGS. Here, FIG. 4 is a perspective view of the flash built-in camera 100 according to the present embodiment. FIG. 5 is a side view of the strobe camera 100 according to the present embodiment. Furthermore, FIG. 6 is a schematic configuration diagram of a strobe of the built-in strobe camera 100 according to the present embodiment.

  As shown in FIG. 4, the camera with a built-in strobe 100 according to the present embodiment is provided with various functional components in a rectangular parallelepiped casing 111. Specifically, the camera with a built-in strobe 100 has a photographic lens 112 and a front strobe window 113 on the first surface 111a (ie, front) side of the casing 111. The built-in strobe camera 110 has a power button 115, a shutter button 116, an upper strobe window 117, and a strobe light adjustment dial 118 on the second surface 111 b (ie, upper surface) side of the casing 111.

  Although not shown, a monitor, an optical viewfinder, various menu buttons, and various function switches are provided on the back surface of the casing 111 (that is, the surface opposite to the first surface 111a). Further, an optical finder window may be provided on the first surface 111 a of the housing 111, and an optical finder may be provided on the back surface of the housing 111.

  Also in this embodiment, a thin plate-like casing 111 is used and a general thin type compact digital camera is configured. However, the shape of the casing 111 is a relatively large camera such as a single-lens reflex camera. May be. The power button 115 is a button for operating each time the power of the built-in flash camera 110 is turned on / off. The shutter button 116 is a button for starting shooting when the built-in flash camera 10 is in the shooting mode, and also functions as a button for confirming and executing various menus displayed on the monitor.

  The photographic lens 112 is a lens for receiving light reflected from the subject, and is a known camera lens. In this embodiment, the photographic lens 112 is provided so as to protrude from the housing 111, but may be incorporated in the housing 111.

  As can be seen from FIGS. 4 and 5, the front strobe window 113 is provided on the first surface 111 a of the housing 111, as with the photographing lens 112. That is, the front strobe window 113 is disposed so as to be parallel to the light receiving surface of the photographic lens 112. For this reason, the front strobe window 113 faces the subject, and the front strobe light C transmitted through and emitted from the front strobe window 113 is emitted toward the subject. In other words, the front strobe window 113 functions as a light emitting surface for emitting front strobe light C toward the subject.

  On the other hand, since the upper strobe window 117 is provided on the second surface 111 b of the casing 111, the upper strobe window 117 is disposed so as to be orthogonal to the light receiving surface of the photographing lens 112. For this reason, the upper strobe window 117 does not face the subject, and the upper strobe light D transmitted through the upper strobe window 117 is emitted toward the upper side of the subject. In other words, the upper strobe window 117 functions as a light exit surface orthogonal to the front strobe window 113 that is the light exit surface of the front strobe light C.

  As can be seen from FIGS. 4 and 6, a strobe light source 121 for front strobe light C and upper strobe light D is provided inside the casing 111 of the built-in strobe camera 110 according to the present embodiment. In addition, a dimming mirror 122 that guides light emitted from the strobe light source 121 to the front strobe window 113 and the upper strobe window 117 is provided inside the casing 111. Furthermore, a reflectance control unit 123 that controls the reflectance of the dimming mirror 122 is provided inside the housing 111. The reflectance control unit 123 is electrically connected to the strobe light adjustment dial 118 provided on the second surface 111b of the housing 111.

  In the present embodiment, the front strobe window 113, the dimming mirror 122, and the strobe light source 121 constitute a front strobe 131, and the upper strobe window 117, the dimming mirror 122, and the strobe light source 121 constitute an upper strobe 132. That is, the strobe light source 121 and the dimming mirror 122 are common components of the front strobe 131 and the upper strobe 132. The front strobe 131, the upper strobe 132, the reflectance control unit 123, and the strobe light adjustment dial 118 constitute a strobe as the built-in strobe camera 110. In other words, the camera with a built-in strobe 110 according to the present embodiment has the amount of front strobe light C emitted toward the subject (the amount of light emitted by the front strobe) and the upper strobe light D emitted upward from the subject. A strobe that controls the ratio of the amount of light (the amount of light emitted by the upper strobe) is built in.

  As the strobe light source 121, for example, a general light source such as a xenon lamp can be used, but an LED light source may be used. In addition, a light source control unit (not shown) is connected to the strobe light source 121, and the amount of light emitted from the strobe light source 121 (that is, the sum of the light amount of the front strobe light C and the light amount of the upper strobe light D). And the color temperatures of the front strobe light C and the upper strobe light D may be adjusted.

  The light control mirror 122 has a characteristic that the reflectance reversibly changes in accordance with the applied voltage. For example, a known electromic is used for the dimming mirror 122. Due to the characteristics of the light control mirror 122, a part of the light emitted from the strobe light source 121 is reflected by the light control mirror 122 and guided to the front strobe window 113 as front strobe light C. On the other hand, the remainder of the light emitted from the strobe light source 121 passes through the light control mirror 122 and is guided to the upper strobe window 117 as the upper strobe light D. Such a dimming mirror 122 can freely change the ratio of the light amount of the front strobe light C (ie, the amount of light emitted from the front strobe) and the light amount of the upper strobe light D (ie, the amount of light emitted from the upper strobe). become.

  The reflectance control unit 123 controls the reflectance of the dimming mirror 122 by changing the voltage applied to the dimming mirror 122. For example, the reflectance control unit 123 may include a general power supply circuit and an arithmetic circuit.

  On the strobe light adjustment dial 118, for example, a ratio between the light amount of the front strobe light C and the light amount of the upper strobe light D may be printed. When the strobe light adjustment dial 118 is rotated in a predetermined direction (forward direction), the light amount of the front strobe light C increases and the light amount of the upper strobe light D decreases, but the dial is rotated in the direction opposite to the predetermined direction. Then, the light amount of the front strobe light C may be decreased and the light amount of the upper strobe light D may be increased.

  Note that the installation location of the strobe light adjustment dial 118 is not limited to the above-described location, and may be, for example, the first surface 111a of the housing 111. Further, instead of the strobe light adjustment dial 118, the ratio of the front strobe light C to the upper strobe light D is displayed on a monitor provided on the back of the casing 111, and the ratio is adjusted by various operation buttons. You may make it changeable.

  Due to the strobe structure of the built-in strobe camera 110, when the user of the built-in strobe camera 110 operates the strobe light adjustment dial 118, the reflectance control unit 123 reflects the light according to the state of the strobe light adjustment dial 118 after the operation. The reflectance is calculated, and a voltage corresponding to the reflectance is applied to the dimming mirror 122 to adjust the reflectance of the dimming mirror 122. Therefore, in the present embodiment, the light emission control means 133 is configured by the light control mirror 122, the reflectance control unit 123, and the strobe light adjustment dial 118.

  As described above, the built-in strobe camera 110 according to the present embodiment includes the front strobe 131 that emits light toward the subject and the upper strobe 132 that emits light toward the upper side. Since the ratio of the amount of light emitted from the upper strobe 132 can be freely changed, the upper strobe light is adjusted so as to brighten the top of the subject while adjusting the irradiation amount of the front strobe light C toward the front of the subject to be small. It becomes possible to adjust a large amount of irradiation of D. Therefore, even when the front strobe light C is irradiated to an object existing between the camera with built-in strobe 110 and the subject, the influence of the reflected light from the object is reduced, and the object existing in front of the subject is It won't be a bad photo that shines white. On the other hand, it is possible to prevent the subject from becoming dark by increasing the irradiation amount of the upper strobe light D so that the upper part of the subject becomes bright.

  That is, in the present embodiment, it has not been possible to solve the problem in the related art by making it possible to adjust the irradiation amount of the front strobe light C and the upper strobe light D while adding the upper surface as the position where the strobe window is provided. It becomes possible to solve the problem that anyone can easily take excellent photos. In addition, since a special or expensive strobe device or the like is not required, the cost of the camera 100 with built-in strobe is not increased, and excellent photographs can be taken.

  Further, in the camera with a built-in strobe 100 according to the present embodiment, since the ratio of the light emission amount of the front strobe 131 and the light emission amount of the upper strobe 132 can be freely changed, the shape and characteristics of the subject and the surroundings of the subject It is possible to easily perform the optimum strobe light irradiation according to the environment. In particular, since the strobe light adjustment dial 118 is provided on the second surface 111b of the casing 111, it is possible to easily adjust the light emission amount of each strobe while taking a picture.

  Furthermore, in the built-in strobe camera 100 according to the present embodiment, since the light sources of the front strobe 131 and the upper strobe 132 are the common strobe light source 121, the number of parts is reduced and the cost is reduced. However, the front strobe 131 and the upper strobe 132 may include light sources independent of each other so that the light emission amount, the color temperature, and the like can be adjusted for each of the front strobe 131 and the upper strobe 132.

  In addition, although the ratio of the light emission amount of the front strobe 131 and the light emission amount of the upper strobe 132 can be freely changed by the light emission control means described above, in order to reduce the influence of the shadow generated on the subject by the strobe light. In addition, it is preferable to increase the light emission amount of the upper strobe 132 as much as possible. For example, on the basis of light emitted from the strobe light source, it is preferable to set the light emission amount of the front strobe 131 to 2% and the light emission amount of the upper strobe 132 to 98%. Accordingly, when the ratio of the light emission amount of the front strobe 131 and the light emission amount of the upper strobe 132 is automatically set, or when the camera is initially set, the light emission amount of the front strobe 131 is reduced (for example, 5% or less). It is preferable to increase the light emission amount of the upper strobe 132 (for example, 95% or more).

  In the present embodiment, the upper strobe window 117 is always exposed, but a lid as in the first embodiment may be provided. As a result, a part of the upper strobe light D emitted to the rear of the built-in strobe camera 100 can be properly emitted toward the front side of the built-in strobe camera 100 (that is, the subject).

DESCRIPTION OF SYMBOLS 10 Strobe built-in camera 11 Case 11a 1st surface 11b 2nd surface 12 Shooting lens 13 Cover body 14 Hinge 15 Power button 16 Shutter button 17 Upper strobe window 21 Strobe light source (light emission source)
31 Upper strobe 110 Strobe built-in camera 111 Housing 111a First surface 111b Second surface 112 Shooting lens 113 Front strobe window 115 Power button 116 Shutter button 117 Upper strobe window 118 Strobe light adjustment dial 121 Strobe light source (light source)
122 Light control mirror 123 Reflectivity control unit 131 Front strobe 132 Upper strobe 133 Light emission control means

Claims (6)

A housing,
A photographic lens that is provided in front of the housing and receives light reflected from the subject;
A camera with a built-in strobe, comprising: a top strobe provided on a top surface of the housing and having a light emitting surface orthogonal to a light receiving surface of the photographing lens. The upper surface strobe has a strobe window that transmits strobe light, and a lid that exposes / shields the strobe window,
The camera with a built-in strobe according to claim 1, wherein at least one surface of the lid reflects strobe light. A hinge that rotatably supports the lid,
The camera with a built-in strobe according to claim 2, wherein a surface of the lid facing the strobe window reflects strobe light. A front strobe including a light emitting surface arranged in parallel with the light receiving surface of the photographing lens;
4. The camera with built-in flash according to claim 1, further comprising: a light emission control unit that controls a ratio between a light emission amount of the front strobe and a light emission amount of the upper surface strobe. 5.   The camera with a built-in strobe according to any one of claims 1 to 4, wherein the front strobe and the top strobe have a common light source.   5. The camera with a built-in strobe according to claim 1, wherein each of the front strobe and the top strobe includes an independent light source.

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