JPH11183976A - Camera - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a camera incorporating a stroboscope pop-up mechanism where the vignetting of strobe light is not caused without making external size large. SOLUTION: This camera is provided with a stroboscopic device 20 arranged ahead of a pentagonal prism 3 on a photographing lens barrel 2 and capable of moving from a non-irradiation position to an irradiation feasible position. The device 20 is pivotally supported so that the rotating position and the rotational amount with respect to a stroboscopic base 11 fixed on a camera body housing 1 may be different and moved from the non-irradiation position to the irradiation feasible position by an arm 8 and a lever 12 regulating the light irradiation direction of the device 20 in the vicinity of the irradiation feasible position.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a camera, and more particularly, to a camera in which a strobe light emitting unit pops up by operating an operation member.

[0002]

2. Description of the Related Art Conventionally, as a mechanism for popping up a strobe light emitting portion, Japanese Utility Model Publication No. 5-31 has been proposed.
No. 633 discloses a mechanism for entering and exiting a built-in strobe light emitting unit in a single-lens reflex camera.

FIGS. 3 and 4 are central longitudinal sectional views of a main part of a single-lens reflex camera to which the above-mentioned access mechanism is applied, taken along a vertical plane including a photographing optical axis, showing a strobe retracted state and an ascended state.

[0004] In the above-mentioned strobe light emitting / retracting mechanism, when the strobe housing 114 accommodating the strobe light emitting unit is stored in the strobe housing storage chamber 116 of the camera housing 112, as shown in FIG. Stop lever 138
Hook 140 is engaged with the pin 120 of the flash housing 114 to prevent the flash housing 114 from jumping out due to the urging force of the tension spring 128.

[0005] Then, when the photographer pushes down the operation projection 158 downward, the slider 154 and the pin 156 are pushed down integrally, and the connecting member 146 rotates clockwise. The rotation causes the locking lever 138 to rotate counterclockwise, disengaging the hook 140 from the pin 120,
The leg lever 118 rotates counterclockwise by the urging force of the tension spring 128, and the strobe housing 114 is moved to the storage chamber 116.
From the front and diagonally upward from the front, and the strobe is raised as shown in FIG. When storing the flash housing 114,
When the front surface of the strobe housing 114 is pushed in the direction of the arrow, the strobe is housed as shown in FIG.

In this access mechanism, a strobe housing 1 is provided.
14, the leg cover 118, the tension spring 128, the locking lever 138, and the like correspond to a pop-up mechanism, and the combination of the operation protrusion 158 and the slider 154 corresponds to a pop-up operation member. It is considered that a portion in which the 148 and the spring 152 and the like are connected to the pop-up operating member and the pop-up mechanism, and correspond to a pop-up interlocking member that transmits the movement of the pop-up operating member to the pop-up mechanism.

[0007]

However, in the above-mentioned technical means in the form of an access mechanism of a built-in strobe light emitting unit disclosed in Japanese Utility Model Publication No. Hei 5-31633, a strobe housing storage chamber is provided above a pentaprism 103. Since the flash case 116 is formed and the strobe housing 114 is stored in the storage room, the height of the entire camera in the height direction is increased. Such an increase in the size of the outer shape is inconvenient for a camera that is increasingly required to be smaller in recent years.

On the other hand, in such a camera, the strobe light emission position is located rearward when viewed from the entire camera. Therefore, in a camera having a recent high-magnification zoom lens mechanism, a lens barrel is used when taking a close-up photograph. There is a problem that vignetting of strobe light occurs. In order to solve this problem, the strobe light emission position must be further raised, which also increases the size of the camera.

The present invention has been made in view of the above problems, and has as its object to provide a camera having a built-in flash pop-up mechanism that does not cause vignetting of flash light without increasing the external dimensions.

[0010]

According to a first aspect of the present invention, there is provided a camera body housing in which a photographic lens barrel cover for housing a photographic lens barrel projects forward. And a strobe device disposed on the cover of the taking lens barrel and movable from a non-irradiation position to an irradiation-possible position.

[0011] In order to achieve the above object, a second aspect of the present invention is provided.
A camera body housing in which a photographic lens barrel cover for housing the photographic lens barrel is arranged to protrude forward;
A strobe device disposed on the photographing lens barrel cover and movable from a non-irradiation position to an irradiable position; and moving means for moving the strobe device from the non-irradiation position to an irradiable position. Features.

In order to achieve the above object, a third aspect of the present invention is provided.
The camera according to the second camera, wherein the moving means is pivotally supported so that a rotation position and a rotation amount with respect to the photographing lens barrel cover are different from each other, and the strobe device is disposed near an irradiable position. And two types of arms for defining a light irradiation direction.

[0013]

Embodiments of the present invention will be described below with reference to the drawings.

FIGS. 1 and 2 are central longitudinal sectional views on a vertical plane including a photographing optical axis of a single-lens reflex camera according to an embodiment of the present invention. FIG. 1 shows a state in which a strobe device is stored. FIG. 2 shows a state where the strobe device is raised.

As shown in FIGS. 1 and 2, the single-lens reflex camera according to the present embodiment has a camera body housing 1 containing a photographic lens barrel 2, a pentaprism 3, and the like, and a photographic image taken in front of the pentaprism 3. A flash device 20 disposed in a space (flash storage section) formed in an upper portion of the lens barrel 2.

The camera body housing 1 includes a pentaprism 3
Has a photographic lens barrel cover 1a integrally formed with the photographic lens barrel 2 protruding forward from the camera body inside.

The strobe device 20 is stored in a predetermined storage position (non-light-emission position) of the above-mentioned strobe storage portion when the light is not emitted, and rises from the storage position when the light is emitted, that is, pops up and moves to a prescribed light-emission position.

Hereinafter, the strobe device 20 will be described in detail. The strobe device 20 includes a photographing lens barrel 2
, A pair of arms 8 extending from the strobe base 11, and a pair of levers 12 also extending from the strobe base 11.
The main part is composed of the arm 8 and the light emitting section 30 disposed at the tip of the lever 12.

The light emitting section 30 has a xenon tube 7 having a normal strobe light emitting function, a reflector 6 and a strobe light emitting section window 5 provided inside a strobe cover 4. The xenon tube 7 is fixed to the reflector 6 and is covered inside the strobe cover 4. In addition, a strobe light emitting unit window 5 is fixed to the strobe cover 4 in front of the reflector 6.

The strobe base 11 is located in the middle of the upper surface of the camera body housing 1 (photographing lens barrel cover 1a) above the photographing lens barrel 2 (on the outer peripheral surface of the photographing lens barrel 2).
Is fixedly mounted on the camera body housing 1. A pair of hinge portions 10 and 1 are provided at both ends of a front end portion and a rear end portion of the strobe base 11, respectively.
4 are provided. The pair of hinge portions 10, 14
The base ends of the pair of arms 8 and 12 are rotatably supported and extend from the strobe base 11, respectively.

On the other hand, when the surface of the strobe cover 4 where the strobe light emitting window 5 is provided is the front side, a pair of hinge portions 9 and hinges 9 are provided on both side surfaces behind the strobe cover 4, respectively. A part 13 is provided. The distal ends of the arms 8 and 12 are rotatably supported and engaged with the hinge 9 and the hinge 13, respectively.

As described above, the hinge section 10, the hinge section 14, the hinge section 13, the hinge section 9 and the strobe base 1
1, a lever 12, a strobe cover 4, and an arm 8 form a four-bar linkage. Of these, the strobe base 11, which is a link between the hinges 10 and 13, is fixed, and the other links are rotatable.

On the other hand, a strobe spring 15 which is a torsion spring is mounted on the hinge portion 14. One end of the strobe spring 15 is mounted on the lever 12 and the other end is mounted on the strobe base 11, and the lever 12 is turned counterclockwise. It is energizing. A stopper 16 protrudes from a lower portion of the front surface of the flash case 4.

Next, the operation of the strobe device 20 for a camera according to the present embodiment having such a configuration will be described.

When the strobe device 20 is not emitting light, the arm 8 and the lever 12 are folded toward the rear of the camera as shown in FIG. 1 so that the strobe cover 4 is stored near the front of the pentaprism 3. At this time, although not shown, a restricting means is provided on the lever 12 or the flash case 4 so as not to move from the storage position.

When the storage position restricting means is released, the lever 12 starts to rotate counterclockwise about the hinge 14 by the urging force of the strobe spring 15. Thus, the flash case 4 connected to the lever 12 via the hinge portion 13 is pushed upward from the camera.

Since the flash case 4 is also connected to the arm 8 via the hinge 9, the arm 8 is also connected to the hinge 10.
Starts to rotate counterclockwise around.

By the action of the lever 12 and the arm 8, the strobe case 4 is initially moved up when the strobe cover 4 is lifted.
Moves upward while rotating counterclockwise about the hinge 10 as the center of rotation.

Thereafter, when the arm 8 rotates to some extent,
From the difference in the rotation center and length between the arm 8 and the lever 12,
The flash case 4 starts rotating clockwise with respect to the arm 8 around the hinge 9.

When the strobe light emitting unit window 5 faces the front, a stopper 16 provided on the strobe case 4 is provided.
Abuts on the engaging portion of the arm 8 to restrict the rotation of the flash case 4. Accordingly, the rotation of the arm 8 and the lever 12 is also restricted. This restricted position is the strobe device 20
This is the position where light emission is possible.

In this embodiment, the strobe spring 15 is provided on the hinge portion 14, but it may be provided on both the hinge portion 14 and the hinge portion 10.

In this embodiment, the stopper 16 is provided on the strobe case 4 so as to engage with the arm 8, but the stopper 16 may function between the lever 12 and the strobe base 11, 12 and strobe case 4
And may function between them.

As described above, according to the camera of the present embodiment, the strobe device 20 is moved above the taking lens barrel cover 1a.
The strobe cover 4 is popped up by an arm 8 which is housed in front of the pentaprism 3 and is pivotally supported by the front upper portion of the taking lens barrel 2 so that the strobe light emitting window 5 faces the front near the light emitting position. , The height of the camera can be made lower than when a strobe pop-up mechanism is provided above the pentaprism 3.

Further, since the strobe light-emitting portion moves upward and forward of the camera, vignetting of the strobe light by the photographing lens barrel 2 can be prevented even in close-up shooting.

[Appendix] According to the embodiment of the present invention as described in detail above, the following configuration can be obtained. That is, (1) a camera body housing in which a housing portion for housing the photographing lens housing is arranged to protrude forward, and a pop-up which is arranged on the housing portion and is a position where irradiation is possible from the housing portion which is a non-irradiation position. A strobe device movable to a position, and first and second first and second shafts which are pivotally supported so that their rotational positions and amounts of rotation with respect to the storage portion are different from each other and define the light irradiation direction of the strobe device near the pop-up position. A pop-up camera comprising: an arm; and urging means for rotating at least one of the two arms to move the strobe device from a storage portion to a pop-up position.

(2) The pop-up camera according to (1), wherein each of the first and second arms is rotatably attached to the storage section and the strobe device.

(3) A camera body housing in which a storage section for storing the photographing lens projects forward, and a pop-up position, which is disposed on the storage section and can be irradiated from the non-irradiation storage section. A strobe device that can be moved to the storage unit, a first arm rotatably supported by the storage unit and the strobe device, and the storage unit and the strobe device that are closer to the subject than the first arm. A second arm rotatably supported with respect to the strobe device, wherein the strobe device is moved from the storage portion to the pop-up position, and the strobe device is moved until the strobe device moves to the pop-up position. (4) The strobe device is a strobe light emitting unit and a case that covers the strobe light emitting unit. A, the first and second
The camera according to (3), wherein the arm of (1) is pivotally supported by a case behind the strobe light emitting section.

(5) In a single-lens reflex camera having a pentaprism and a camera body housing in which a housing portion for housing a photographing lens projects forward.
A single-lens reflex, comprising: a strobe device arranged on the storage section in front of the pentaprism; and a pop-up mechanism for popping up the strobe device from a photographic lens housing to an upper front side of the pentaprism. camera.

(6) The pop-up mechanism moves the strobe device to a pop-up position,
An arm that defines a light irradiation direction of the strobe device until the strobe device moves to the pop-up position;
The single-lens reflex camera according to (5), comprising:

(7) The single-lens reflex camera according to (5), wherein the arm defines a light irradiation direction by rotating a strobe device immediately before the pop-up position.

(8) A camera body housing in which a housing portion for housing the photographing lens housing projects forward, and a position where the housing portion is disposed on the housing portion and can be irradiated from the housing portion which is a non-irradiation position. A flash device movable to a pop-up position.

(9) A camera body housing in which a housing section for housing the photographing lens housing is projected forward, and a position where the housing section is located on the housing section and can be irradiated from the housing section which is a non-irradiation position. A pop-up camera, comprising: a strobe device movable to a pop-up position; and moving means for moving the strobe device from a storage unit to the pop-up position.

(10) The moving means is pivotally supported so that the rotation position and the rotation amount with respect to the storage section are different from each other, and defines first and second light irradiation directions of the strobe device near the pop-up position. The pop-up camera according to (9), further comprising: a second arm.

(11) In a camera having a pentaprism for guiding light incident from a photographic optical system to a finder, a photographic lens protruding forward from the pentaprism and provided on an outer peripheral surface of the photographic lens. A flash device movable between a light emitting position and a non-light emitting position.

[0045]

As described above, according to the present invention, it is possible to provide a camera having a built-in flash pop-up mechanism that does not cause vignetting of flash light without increasing the external dimensions.

[Brief description of the drawings]

FIG. 1 is a central longitudinal sectional view on a vertical plane including a photographing optical axis when a strobe device is in a housed state in a single-lens reflex camera according to an embodiment of the present invention.

FIG. 2 is a central vertical cross-sectional view on a vertical plane including a photographing optical axis when the flash device is in a photographable state in the single-lens reflex camera according to the embodiment.

FIG. 3 is a diagram illustrating an example of a central vertical cross section of a vertical plane including a photographing optical axis of a main part when the strobe device is in a stored state in a single-lens reflex camera to which a conventional pop-up strobe mechanism is applied.

FIG. 4 is a diagram illustrating an example of a central vertical cross section of a vertical plane including a photographing optical axis of a main part when the strobe device is in an up state in a single-lens reflex camera to which a conventional pop-up strobe mechanism is applied.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Camera body housing 2 ... Photographer lens barrel 3 ... Pentaprism 4 ... Strobe cover 5 ... Strobe light emitting window 6 ... Reflector umbrella 7 ... Xenon tube 8 ... Arm 9 ... Hinge part 10 ... Hinge part 11 ... Strobe base 12 ... Lever 13 ... Hinge part 14 ... Hinge part 15 ... Strobe spring 16 ... Stopper 20 ... Strobe device 30 ... Light emitting part

Claims (3)

[Claims] 1. A camera body housing in which a photographing lens barrel cover for housing a photographing lens barrel projects forward and is disposed on the photographing lens barrel cover, and irradiates from a non-irradiation position. And a strobe device movable to a possible position. 2. A camera body housing in which a photographic lens barrel cover for accommodating a photographic lens barrel projects forward and is disposed on the photographic lens barrel cover, and irradiates from a non-irradiation position. A camera comprising: a strobe device capable of moving to a possible position; and moving means for moving the strobe device from a non-irradiation position to an irradiable position. 3. The moving means is pivotally supported so that the rotation position and the rotation amount with respect to the photographing lens barrel cover are different from each other, and defines a light irradiation direction of the strobe device near an irradiation possible position. 3. The camera according to claim 2, comprising two types of arms.