JP2002350966A - Burglar prevention camera - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the clouding removing device of the burglar prevention camera for which the remodeling work of clouding removing is easily performed in a short time. SOLUTION: This burglar prevention camera is constituted of a camera main body 3, a housing 4 covering the camera main body 3 and a transparent window 5 provided so as to be opposed to the lens 3a of the camera main body 3, and cloudingproof film 6 is stuck to the transparent window 5.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a security camera installed in a humid place such as an underground parking lot.

[0002]

2. Description of the Related Art Conventionally, a security camera of this kind has a housing for covering a camera body and a transparent window provided at a portion of the camera body opposite to a lens, and an image is taken through the transparent window. However, the transparent window often becomes cloudy due to moisture, making it impossible to take a picture with the camera body.

[0003]

In order to remove the fogging of the transparent window, it is conceivable to send air to the transparent window with a fan.
There is a problem that the remodeling cost is increased and the remodeling time is long.

[0004] It is an object of the present invention to provide a security camera which can solve the above problems with a simple configuration.

[0005]

The object of the present invention is to provide a security camera having at least a camera body, a housing covering the camera body, and a transparent window provided facing the lens of the camera body. This is achieved by attaching an anti-fog film to the transparent window of the security camera.

According to such a configuration, the transparent window does not fog even when the camera body is installed in a highly humid place. Since it is not necessary to install a fan or the like, the fogging of the transparent window can be carried out in a short time with a small remodeling cost.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings.

In FIG. 1, a security camera 1 is provided on a side wall of a parking lot 2. As shown in FIG. 2, the security camera 1 has a camera body 3, a steel plate housing 4 covering the camera body 3, a transparent window 5 made of acrylic resin, and an antifogging film. The transparent window 5 has a substantially square shape and is provided at a position facing the lens 3A of the camera body 3. As shown in FIGS. 2 and 4, the antifogging film 6 is attached to the inner surface side of the transparent window 5. As shown in FIG. 4, the anti-fog film 6 has a hydrophilic layer 6A containing a water-absorbing organic polymer formed on the outer surface side. The anti-fog film 6 is attached to the transparent window 5 with an adhesive or the like.

According to the above-described configuration, according to an experiment, even when the security camera 1 is installed in a high-humidity place, the transparent window 5 does not become clouded. In addition, since it is only necessary to attach the anti-fogging film 6 to the existing security camera 1, the construction time is short and the construction cost is low. The transparent window 5 may be detachably attached to the housing 4, and the anti-fog film 6 may be attached to the transparent window 5 in advance.

[0010]

As described below, according to the present invention, a fogging prevention device for a security camera having a simple structure which requires a short remodeling time and a low remodeling cost can be obtained.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a security camera installed in a parking lot according to an embodiment of the present invention.

FIG. 2 is a sectional view of a main part of the security camera according to the embodiment of the present invention.

FIG. 3 is a front view of the security camera according to the embodiment of the present invention.

FIG. 4 is an enlarged cross-sectional view of a transparent window according to an embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Security camera 2 Parking lot 3 Camera body 3A lens 4 Housing 5 Transparent window 6 Anti-fog film

Claims (3)

[Claims] 1. A security camera comprising at least a camera body, a housing covering the camera body, and a transparent window provided to face a lens of the camera body,
A security camera characterized in that an anti-fog film is adhered to the transparent window of the security camera. 2. The security camera according to claim 1, wherein the anti-fogging film is attached to an inner surface of the transparent window. 3. The security camera according to claim 1, wherein a hydrophilic layer containing a water-absorbing organic polymer is formed on an outer surface of the anti-fogging film.