A zoom lens includes, in order from an object side to an image side, a first lens unit having a negative refractive power and a second lens unit having a positive refractive power. A distance between the first lens unit and the second lens unit changes during zooming. The second lens unit includes an aperture stop and two or more negative lenses. The zoom lens satisfies specified conditional expressions.

The disclosure includes a security system including an outdoor security device. In some embodiments, the outdoor security device comprises a housing, a light coupled to the housing and located within a hollow inner portion of the housing, and a camera and a lens coupled to the housing. In some embodiments, the security device comprises at least one directional microphone communicatively coupled to the camera and configured to determine a location of a detected sound whereby the camera performs a frame lock to capture an image associated with the detected sound.

A security cover for an audio/video recording and communication device (A/V device) comprises a front wall includes first and second apertures. The first aperture is positioned to expose a camera of the A/V device. The second aperture is positioned to expose a button of the A/V device. The security cover further includes a set of one or more adjoining sidewalls extending from the front wall and being sloped outward from the front wall. The security cover further includes a mounting surface extending about the set of sidewalls, the mounting surface being spaced from the front wall. The security cover further includes a rigid mounting frame having a first surface for abutting a support surface and a second surface, opposite the first surface, for abutting the mounting surface. The front wall, the set of sidewalls, and the rigid mounting frame together form an interior compartment to contain the A/V device.

The present application provides a detection apparatus and a control system, wherein the detection apparatus comprises a passive infrared sensor and a Fresnel lens provided on the passive infrared sensor, and wherein the detection apparatus further comprises a rotation unit, the rotation unit being capable of driving the passive infrared sensor and the Fresnel lens to rotate together. The detection apparatus of the present application can be used for controlling lamplight, air conditioner, heating and ventilation in a building or can be used for security, etc.

An image capture apparatus capable of improving the quality of an image captured using illumination. A multi-eye image capture section has image capture sections that capture images in different image capture ranges partially overlapping with each other to generate a wide-angle image. A single-eye image capture section captures an image in part of the image capture ranges of the multi-eye image capture section and changes an image capture direction. When performing image capture using illumination, the exposure level of a first image capture section of the multi-eye image capture section, having an image capture range overlapping with the image capture range of the single-eye image capture section is controlled to be lower than the exposure level of a second image capture section having an image capture range not overlapping with the image capture range of the single-eye image capture section.

The various implementations described herein include a video camera assembly that includes: (1) a housing; (2) an image sensor encased in the housing and configured to capture activity of the smart home environment; (3) a wireless radio configured to transmit video frames captured by the image sensor to an electronic device via a remote server; (4) at least one infrared transmitter configured to selectively illuminate the smart home environment; (5) one or more circuit boards encased in the housing, the one or more circuit boards including at least one processor mounted thereon; and (6) a heating component coupled to the image sensor, the heating component configured to continuously maintain the image sensor at a temperature above a threshold temperature while the image sensor is capturing the activity of the smart home environment.

An apparatus for discreet imaging of a scene, comprising: at least one short wave infrared (SWIR) sensor that captures at least one SWIR image of the scene at a SWIR wavelength range, at least one SWIR illumination element that generates SWIR illumination at the SWIR wavelength range, and a barrier positioned such that SWIR illumination reflecting off objects of scene within the field of view passes through the barrier to reach the at least one SWIR sensor, the barrier made out of a material and having a thickness selected for being opaque to visible light and non-opaque to the SWIR wavelength range.

The present invention relates to a camera, comprising: a base; a cylindrical hollow main body mounted to the base; an electric motor supported on a support, with an external gear being mounted on an output shaft of the electric motor; a camera head assembly, comprising a cylindrical housing, a lens module, and a motherboard for controlling the electric motor and the lens module; and an internal gear meshed with the external gear. One of the support and the internal gear is mounted in a fixed manner to the base or in the hollow main body, and the other one is mounted in a fixed manner to the camera head assembly. An annular groove and at least one helical groove extending upward from the annular groove are formed on an outer wall of a lower-half part of the cylindrical housing, a corresponding circular guiding protrusion is disposed on an inner wall of the hollow main body, and each circular guiding protrusion is capable of being received in the annular groove or in the helical groove, such that up/down movement and horizontal rotation of the camera head assembly is driven by the single electric motor. According to the present invention, control of the camera is simplified, and the size and cost thereof are reduced.

An imaging device can capture images in an intended situation while providing privacy protection. The imaging device includes an imaging unit that captures an image, a lens barrier that opens and closes the imaging unit, a lens barrier driver that drives the lens barrier, a voice sensor that recognizes a voice, and an information processor that controls the lens barrier driver to open the lens barrier in response to the voice sensor recognizing a predetermined voice.

A lens assembly for a surveillance camera and the surveillance camera are provided. The lens assembly includes: a lens case; a lens body in which the lens case is received; a sensor circuit board having a sensor connected with the lens body, and being disposed in the lens case; and a flexible circuit board disposed inside the lens body facing the lens case, and being connected to the sensor circuit board, and bent at least once such that at least one portion of the flexible circuit board overlaps another portion thereof.