Patent ID: 9531930
Filing Date: 2016-12-27
CPC Classification: G03B,H04N

Claim Text:
1. A surveillance device, comprising: a shell; a sensing assembly; and a transparent cover detachably disposed on the shell, to form an accommodating space together, wherein the sensing assembly is disposed in the accommodating space, and the transparent cover comprises: a first light-transmitting cover disposed on the shell and having a through hole; an annular light baffle comprising an enclosure wall, a first limiting part having a first limiting surface, and a second limiting part having a second limiting surface, wherein the enclosure wall is disposed at the through hole and has an outer wall surface and an inner wall surface that is opposite to the outer wall surface, wherein the first light-transmitting cover is pressed against the first limiting surface, and the second limiting surface faces oppositely away from the accommodating space; and a second light-transmitting cover disposed on the annular light baffle and pressed against the second limiting surface, such that the first limiting surface and the second limiting surface prevent the second light-transmitting cover from moving toward the accommodating space, wherein the second light-transmitting cover is surrounded by the inner wall surface, the first limiting part is connected to the outer wall surface, the first limiting surface is in contact with the first light-transmitting cover and faces toward the accommodating space, the second limiting part is connected to the inner wall surface, the second limiting surface is in contact with the second light-transmitting cover, an included angle is formed between a normal direction of the first limiting surface and a normal direction of the second limiting surface, and the included angle is greater than 90 degrees and less than or equal to 180 degrees.