Abstract: An image surveillance device is mounted on a corner wall structure having a first side surface, a second side surface, and a ceiling surface and includes a casing and an image capturing module. The casing includes a containing plate, a cover, and a mounting plate detachably fixed to the first side surface, the second side surface, and the ceiling surface. The containing plate is detachably contained in the mounting plate and has an opening and a containing groove recessed inwardly from the opening. The cover detachably covers the opening and has a first transparent mask. The image capturing module is disposed in the containing groove. An oblique angle is included between an optical axis of the image capturing module and the ceiling surface, so as to make the image capturing module obliquely monitor a surveillance region corresponding to the corner wall structure through the first transparent mask.

Abstract: A video surveillance component includes a base and a camera. The camera includes a case and a camera lens module. The case is detachably assembled to the base. The camera lens module is installed on the case. Moreover, a video surveillance assembly includes two video surveillance components. Each of the two video surveillance components includes a camera and a base having a back plate. The camera includes a case and a camera lens module installed on the case. The two back plates of the two bases are attached to each other, so as to expand the field of view of the video surveillance assembly.

Abstract: A video surveillance component includes a base and a camera. The camera includes a case and a camera lens module. The case is detachably assembled to the base. The camera lens module is installed on the case. Moreover, a video surveillance assembly includes two video surveillance components. Each of the two video surveillance components includes a camera and a base having a back plate. The camera includes a case and a camera lens module installed on the case. The two back plates of the two bases are attached to each other, so as to expand the field of view of the video surveillance assembly.

Abstract: A photographic device includes a casing, a photographic body, an auxiliary light source and an adjusting assembly. The casing includes an opening. The photographic body, disposed in the casing, and the photographic body, corresponds to the opening. The photographic body is adapted for image capturing. The auxiliary light source, disposed between the casing and the photographic body, is adapted for emitting light outside through the opening. The adjusting assembly, disposed in the casing, is connected to the auxiliary light source. The adjusting assembly is adapted for driving the auxiliary light source to move relative to the opening.