초록 ▼

A surveillance system for use in apartment buildings, department stores, and the like, wherein one or more fixed scanning, pan, tilt, zoom, and/or programmed cameras are housed within a solid reflective member or globe. The globe is internally coated with a transparent nichrome layer that bonds a la

A surveillance system for use in apartment buildings, department stores, and the like, wherein one or more fixed scanning, pan, tilt, zoom, and/or programmed cameras are housed within a solid reflective member or globe. The globe is internally coated with a transparent nichrome layer that bonds a layer of highly reflective metal, such as silver, to the globe. A layer of SiO is, in turn, deposited on the silver layer to protect the silver layer and to control the spectral response of the globe. The SiO layer is protected by a plastic coating. Either the plastic coating or the SiO layer is coated with a material, such as black paint, to absorb reflections within the globe. A camera having a lens and a masking disc is positioned within the globe. A portion of the interior, not coated with black paint, defines a window for the lens. Also, disclosed is a process for uniformally metalizing the interior surface of the spherical globe. The process includes rotating the globe within a vacuum chamber while the nichrome, silver, and SiO layers are sequentially deposited on the interior of the globe by vaporization of material positioned on three heating filaments positioned inside the globe. Subsequent to the deposition of the layers by vaporization, the vacuum is released and the plastic and paint coatings are applied to the interior of the globe. Several times during the process, the globe is heated in an oven to vaporize solvents and expedite the process.

대표청구항 ▼

A surveillance device comprising, in combination: a spherical dome having an opening communicating with the interior of said dome; a reflective metalizing coating of silver positioned on the interior surface of said dome; a coating of SiO positioned on said silver coating; a plastic film covering sa

A surveillance device comprising, in combination: a spherical dome having an opening communicating with the interior of said dome; a reflective metalizing coating of silver positioned on the interior surface of said dome; a coating of SiO positioned on said silver coating; a plastic film covering said SiO coating on the interior of said dome; mounting means associating with said opening for supporting said dome; a camera connected to said mounting means and having a lens positioned in the interior of said dome; scanning means for turning said camera about a predetermined scan angle; means for mounting said dome on a surface; and a matte darkened coating positioned on portions of said dome defining an opening in said dome for said lens.