JP3099562U - Monitor attachment for underwater housing of video camera - Google Patents

Abstract

A monitor attachment for an underwater housing is provided which allows a subject to be viewed from behind by looking at a foldable and reversible liquid crystal monitor on the side of a camera body.
An attachment (1) for fixing a video camera (3) having a foldable and outwardly reversible liquid crystal monitor (2) to an underwater housing for waterproof protection is a box-shaped frame, and has a trapezoidal bottom as viewed in cross section. A side opening 8 having a shape substantially corresponding to the liquid crystal monitor 2 is provided on the side surface of the side frame, and the inner surface of the rear wall 6 of the frame is perpendicular to the bottom surface of the camera body but forms an acute angle with the side surface of the camera body. A first flat mirror 9 is provided facing the liquid crystal monitor, and a second flat mirror 10 is provided on the inner surface of the front side wall 7 of the frame which faces the inner surface of the rear side wall 6 but is perpendicular to the side of the camera body but forward and upward. Is constituted by a frame provided with a top opening through which the second plane mirror 10 can be seen.
[Selection diagram] FIG.

Description

The present invention relates to a monitor attachment in which a foldable and reversible LCD monitor is fixed to an underwater housing (so-called "marine pack" or "marine case") for waterproof protection of a video camera in which the LCD monitor is placed on the side of the camera body. is there.

The conventional underwater housing covers the entire video camera, so even if the video camera has a foldable and reversible LCD monitor placed sideways on the side of the camera body, instead of the LCD monitor on the side, the cost can be reduced. There was an underwater housing limited to checking the subject with an optical viewfinder facing the person holding the camera. Further, there has been an underwater housing in which a folded liquid crystal monitor is unfolded forward and is laterally extended to accommodate a video camera in the housing (for example, see Non-Patent Document 1). Further, there has been an underwater housing incorporating a liquid crystal monitor on the rear surface of the underwater housing itself (for example, see Non-Patent Document 2).
Victor Company of Japan, Ltd./Digital Video Camera GR-DVP9 / Product Information Accessories [Search July 12, 2003], Internet <URL: http://www.jvc-victor.co.jp/dvmain/dvp9/ acc.html> Sony Corporation / Handycam Accessories / Marine Pack & Related Products / MPK-DVF5M, [Search July 12, 2003], Internet <URL: http://www.ecat.sony.co.jp/camera/ handycamacc / acc / index.cfm? PD = 2272 & KM = MPK-DVF5Mhtml>

However, since underwater goggles are used underwater, it is difficult to confirm a subject with a small optical viewfinder. The underwater housing described in Non-Patent Document 1 or Non-Patent Document 2 is a liquid crystal monitor that protrudes horizontally. In order to form a protruding portion for accommodating the liquid crystal or to provide a separate liquid crystal monitor in the underwater housing itself, the cost is high, and therefore the price is high.

Accordingly, an object of the present invention is to provide an underwater housing for a video camera which is larger than the optical viewfinder on the rear surface of the camera body and allows a subject to be seen by looking at a foldable and reversible LCD monitor on the side of the camera body. Getting a monitor attachment for

In order to achieve this object, the monitor attachment for the underwater housing of the video camera of the present invention is a box-shaped frame that encloses the side surface in a substantially trapezoidal shape. A side opening having a shape substantially corresponding to the liquid crystal monitor in the oriented state is provided, and the rear wall inner surface of the frame is perpendicular to the bottom surface of the camera body, but forms an acute angle with the side surface of the camera body. A first flat mirror facing the liquid crystal monitor is provided, and a second flat mirror orthogonal to the camera body side face but forward and upward is provided on the inner face of the front wall of the frame facing the inner face of the rear wall. Is characterized in that it is provided with a top opening through which the second plane mirror can be seen, and is constituted by a frame whose bottom is closed by a bottom wall.

According to the present invention, the first plane mirror forms a left-right inverted image of the image projected on the liquid crystal monitor through the side opening, and the second plane mirror facing the first plane mirror is reflected on the first plane mirror. The left-right inverted image is again inverted left-right to form an image. Therefore, a person holding the camera and looking through the second plane mirror from the upper rear side through the top opening can see a normal image in the same direction as the liquid crystal monitor image. Further, such an attachment can be manufactured at a much lower cost than an underwater housing as described in Non-Patent Documents 1 and 2.

In a preferred embodiment of the present invention, a flange parallel to the side surface of the underwater housing is provided on the side of the trapezoidal bottom frame viewed in cross section, and this flange is provided with one of Velcro (registered trademark). Is attached to the other half of the Velcro (registered trademark) provided at the corresponding position of the underwater housing, and fixed to the other half of the underwater housing. A parallel flange is provided, and one half of the magic tape (registered trademark) is attached to the flange, and the flange is fixed to the other half of the magic tape (registered trademark) provided at a corresponding position of the underwater housing.

Further, in another preferred embodiment of the present invention, a flange parallel to the side surface of the underwater housing is provided on the side surface of the trapezoidal bottom frame viewed in cross section, and the flange is provided on the side surface of the underwater housing. And hooked and fixed on an L-shaped guide rail.

Next, preferred embodiments of the present invention will be described in detail with reference to the drawings.

In FIG. 1, a monitor attachment (hereinafter abbreviated as "attachment") 1 for a submersible housing of a video camera according to a preferred embodiment of the present invention and a foldable and reversible liquid crystal monitor 2 are laterally mounted on the side of the camera body. 1 shows a video camera 3 and an underwater housing 4 (shown by a two-dot chain line) shown in FIG. The attachment 1 is fixed to the side surface of the underwater housing 4 on the liquid crystal monitor side as shown in FIG.

This fixation can be performed by any method. For example, although not shown, one half of a magic tape (registered trademark) is attached to an outwardly protruding flange 5 provided on a side surface of the attachment 1 which is in contact with the underwater housing 4, and a corresponding position of the underwater housing is attached. Is attached to the other half of the Velcro (registered trademark), and fixed by entanglement of the Velcro (registered trademark) half. Further, the flange 5 can be fixed by engaging with a guide rail (not shown) provided in an L-shape on the side surface of the underwater housing.

(3) The attachment 1 is a box-shaped frame that surrounds the side surface in a substantially trapezoidal shape as shown in a cross section in FIG. Preferably, the side of the rear wall 6 forms an acute angle with the side surface on the bottom side of the trapezoidal shape as viewed in cross section, and the side of the front side wall 7 has a right-angled trapezoidal shape.

(4) A side surface opening 8 having a shape substantially corresponding to the liquid crystal monitor 2 turned to the side surface outward state is provided on the side surface of the frame on the bottom side of the trapezoidal shape seen in the cross section. A first flat mirror 9 is provided on the inner surface of the rear wall 6 of the frame at an acute angle to face the liquid crystal monitor 2, and on the inner surface of the front wall 7 of the frame facing the inner surface of the rear wall 6 is a side surface of the camera body. A second flat mirror 10 is provided which is perpendicular to, but forward and upward. Further, the top wall 11 is provided with a top opening 12 through which the second flat mirror 10 can be seen. In the embodiment shown in FIG. 4, the frame has an open bottom surface, but may be a frame whose bottom surface is closed by a bottom wall.

According to the present invention, the first flat mirror 9 forms a left-right inverted image of the image projected on the liquid crystal monitor 2 through the side opening 8, and the second flat mirror 10 facing the first flat mirror 9 is the second flat mirror 9. The left-right inverted image reflected on the one-plane mirror 9 is left-right inverted again to form an image. Therefore, a person who holds the camera and looks through the second flat mirror 10 from the upper rear side through the top opening 12 can see a normal image in the same direction as the liquid crystal monitor image.

The attachment of the present invention is an auxiliary device for an underwater housing for housing and protecting the video camera in a waterproof manner so that the video camera having a large liquid crystal monitor that can be turned sideways and turned outward can be used for underwater photography. People with a camera can shoot underwater while viewing a normal image from behind and from above using a large LCD monitor on the side of the camera body instead of the small optical viewfinder provided on the back of the camera body, through two flat mirror reflections. , Making it easy to check the contents of shooting and enabling shooting without failure. In addition, since the underwater housing itself can have a simple box structure without an overhang, the manufacturing cost and price of the underwater housing itself can be reduced. As a result, divers can easily and inexpensively enjoy diving records, which is useful for increasing the diver population and promoting the marine industry.

FIG. 3 is a perspective view showing an attachment according to the present invention and an underwater housing for accommodating the video camera and fixing the attachment. It is a perspective view similar to FIG. 1 which shows the state which fixed the attachment to the underwater housing. FIG. 4 is a cross-sectional view of the flange of the attachment according to the present invention. FIG. 2 is a perspective view of the attachment according to the present invention as viewed from the side of the opening.

Explanation of reference numerals

Reference Signs List 1 monitor attachment for underwater housing 2 liquid crystal monitor 3 video camera 4 underwater housing 5 flange 6 rear wall 7 front wall 8 side opening 9 first plane mirror 10 second plane mirror 11 top wall 12 top opening

Claims (4)

A box-type frame that surrounds the sides in a trapezoidal shape in a monitor attachment that secures a video camera with a foldable and reversible LCD monitor placed sideways on the side of the camera body and a waterproof underwater housing for the video camera. A side opening of a shape substantially corresponding to the LCD monitor turned to the side outward is provided on the side of the frame on the bottom side of the trapezoidal shape seen in the above, and the inside of the rear wall of the frame is orthogonal to the bottom of the camera body. A first flat mirror is provided facing the liquid crystal monitor at an acute angle with respect to the side surface of the camera body, and the inner surface of the front wall of the frame facing the inner surface of the rear wall is orthogonal to the side surface of the camera body. A second flat mirror facing forward and upward is provided, and a top opening is provided on the top wall through which the second flat mirror can be seen. Camcorder underwater housing for monitoring attachment, characterized by being configured by frame. The monitor attachment for an underwater housing of a video camera according to claim 1, wherein the bottom surface of the frame is closed by a bottom wall having no opening. A flange parallel to the side of the underwater housing is provided on the bottom side of the trapezoidal frame seen in cross section, and one half of the Velcro (registered trademark) is attached to this flange. The monitor attachment for an underwater housing of a video camera according to claim 1, wherein the monitor attachment is attached to the other half of the Velcro (registered trademark) provided in the camera and fixed by entanglement between the Velcro (registered trademark) halves. A flange parallel to the side of the underwater housing is provided on the side of the frame on the bottom side of the trapezoidal shape seen in cross section, and this flange is engaged with and fixed to an L-shaped guide rail provided on the side of the underwater housing. A monitor attachment for an underwater housing of a video camera according to claim 1 or 2.

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