Abstract: A night vision device, comprising a first light-sensitive chip, a first lens group (101), a first display screen, an image processing system and a control system for adjusting an imaging range of the first light-sensitive chip by adjusting times of optical zooming of the first lens group and/or digital zooming of the image processing system. The night vision device further comprises an auxiliary illumination module (103), which comprises an auxiliary light source and a light guiding cavity; the auxiliary light source at least can emit infrared light; a light ray emitted by the auxiliary light source is emitted via the light guiding cavity; the light guiding cavity has a movable adjustment component for adjusting an irradiation range of the emitted light ray in a manual manner or by means of automatic control by the control system; and the irradiation range is adapted to the imaging range of the first light-sensitive chip.

Abstract: A concentrated solar energy system, comprising a convergence system, a double-sided photovoltaic panel (p1) and a support component, wherein the convergence system comprises at least one tooth surface (s5) and a reflection surface (s6), each tooth surface containing at least one Fresnel unit, and the reflection surface being arranged below the tooth surface along a sunlight incident direction; and the double-sided photovoltaic panel is arranged above the reflection surface along the sunlight incident direction, and is basically located at a focusing location of the convergence system.

Abstract: An electromagnetic radiation sensing system, comprising sensing elements (604, 605, 606) and a Fresnel lens system for converging electromagnetic radiation; the sensing elements (604, 605, 606) are used to sense the electromagnetic radiation converged by the Fresnel lens system; the Fresnel lens system comprises at least two toothed faces (601, 602, 603) located on the same light path, each of the tooth faces comprising at least one Fresnel unit; at least one of the two toothed faces is a complex Fresnel refraction surface or a filled Fresnel refraction surface, or the two tooth faces are at a same physical interface and an element located thereon has a reflective back surface. The electromagnetic radiation sensing system can adequately utilize the advantage of the thinness of a Fresnel lens, and has better convergence without a significant increase in the thickness of the system, thus facilitating reducing of the size of a device and improving of the system performance.

Abstract: An infrared camera, comprising photosensitive element (101) capable of sensing infrared spectrum, gas discharge flash acting as flash light source (102), a first optical filter (103) filtering visible lights and allowing infrared light to transmit, and processing module (105) used to execute instructions, wherein the first optical filter is fixedly or removablely disposed in the emitted light path of the flash light source. Due to gas discharge flash filtering visible lights and acting as infrared light source, the camera could provide infrared lighting capability far better than infrared LED, improving the nighttime infrared photographing quality.

Abstract: A Fresnel lens system, comprising at least two tooth faces located on the same light path; each of the tooth faces comprises at least one Fresnel unit, each Fresnel unit being a Fresnel refraction surface formed by an original curved surface; at least one of the two tooth faces is a complex Fresnel refraction surface or a filled Fresnel refraction surface, or the two tooth faces are at a same physical interface and an element located thereon has a reflective back surface. The Fresnel lens system can adequately utilize the advantage of thinness of Fresnel lens, thus better adjusting the light path without a significant increase in the thickness of the system.

Abstract: A zoom lens comprises a focus driving mechanism and a zoom driving mechanism and corresponding lens groups. The zoom driving mechanism is sleeved outside the focus driving mechanism. The focus driving mechanism is a voice coil motor and comprises a focus stator assembly (7a1) and a focus rotor assembly (7a2) that are connected by means of an elastic connection member (7a3). One of a focus stator sleeve (7a11) in the focus stator assembly and a focus rotor sleeve (7a21) in the focus rotor assembly is a permanent magnet sleeve, and the other of the focus stator sleeve (7a11) and the focus rotor sleeve (7a21) is a non-magnet sleeve, and the assembly to which the non-magnet sleeve belongs further comprises a preliminary magnetic member (7a22) and a driving coil (7a23).

Abstract: A voice coil motor and a corresponding focusing lens. A rotor assembly (22) is connected to a stator assembly (21) by means of an elastic connecting piece (23). A stator sleeve (211) is sleeved on a rotor sleeve (221). One of the stator sleeve (211) and the rotor sleeve (221) is a permanent magnetic material sleeve, and the other is a non-magnetic material sleeve. An assembly to which the non-magnetic material sleeve belongs also comprises a pre-magnetic element (222) and a drive coil (223). The premagnetic element (222) is made of a permanent magnetic or magnetized material, and is fixed relative to the non-magnetic material sleeve. The elastic connecting piece (23) is in a force balance state in a case without power because of pre-existing magnetic force between the pre-magnetic element (222) and the permanent magnetic material sleeve. Smaller electromagnetic force is required for driving the elastic connecting piece (23) to move, thereby reducing a drive current and power consumption.

Abstract: A touch type input apparatus may include a touch panel (110) and a substrate (120). The touch panel may be transparent. The substrate may be located beneath the touch panel and formed as a photoelectric conversion device. The substrate may be used to supply electricity to the input apparatus or external equipment. The touch panel may include at least one key area (111). The input signal generated by the touch operation of the user in each key area may be the key signal corresponding to the key area, and the icon (130) which is used to represent the key area may be arranged on the surface of the touch panel or the substrate. Because the photoelectric conversion device is used as the substrate of the transparent touch panel, on one hand, the occupancy of the input interface on the display interface is avoided; on the other hand, the input apparatus can be self-powered and even supply electricity to other equipments, and thereby the power source issue of the input apparatus is cleverly solved.

Abstract: A night vision device, comprising a first light-sensitive chip, a first lens group (101), a first display screen, an image processing system and a control system for adjusting an imaging range of the first light-sensitive chip by adjusting times of optical zooming of the first lens group and/or digital zooming of the image processing system. The night vision device further comprises an auxiliary illumination module (103), which comprises an auxiliary light source and a light guiding cavity; the auxiliary light source at least can emit infrared light; a light ray emitted by the auxiliary light source is emitted via the light guiding cavity; the light guiding cavity has a movable adjustment component for adjusting an irradiation range of the emitted light ray in a manual manner or by means of automatic control by the control system; and the irradiation range is adapted to the imaging range of the first light-sensitive chip.

Abstract: A zoom lens comprises a focus driving mechanism and a zoom driving mechanism and corresponding lens groups. The zoom driving mechanism is sleeved outside the focus driving mechanism. The focus driving mechanism is a voice coil motor and comprises a focus stator assembly (7a1) and a focus rotor assembly (7a2) that are connected by means of an elastic connection member (7a3). One of a focus stator sleeve (7a11) in the focus stator assembly and a focus rotor sleeve (7a21) in the focus rotor assembly is a permanent magnet sleeve, and the other of the focus stator sleeve (7a11) and the focus rotor sleeve (7a21) is a non-magnet sleeve, and the assembly to which the non-magnet sleeve belongs further comprises a preliminary magnetic member (7a22) and a driving coil (7a23).

Abstract: A method for determining a capacitance value of a capacitive sensor begins by applying a sensor signal (Vx) to the capacitive sensor. The sensor signal (Vx) includes a number of charge-discharge pulse pairs distributed over a first period of time (T/N), with each pulse pair having a different pulse period. The method then proceeds by accumulating a number (N) of samples of a reference voltage (Vs) measured across a reference capacitor (Cs) that is coupled to the capacitive sensor over a second period of time (T) to produce an accumulated capacitance value (ACCUMULATED). The accumulated capacitance value (ACCUMULATED) is then divided by the number (N) of the samples to determine the capacitance value (Cx) of the capacitive sensor.

Abstract: A voice coil motor and a corresponding focusing lens. A rotor assembly (22) is connected to a stator assembly (21) by means of an elastic connecting piece (23). A stator sleeve (211) is sleeved on a rotor sleeve (221). One of the stator sleeve (211) and the rotor sleeve (221) is a permanent magnetic material sleeve, and the other is a non-magnetic material sleeve. An assembly to which the non-magnetic material sleeve belongs also comprises a pre-magnetic element (222) and a drive coil (223). The premagnetic element (222) is made of a permanent magnetic or magnetized material, and is fixed relative to the non-magnetic material sleeve. The elastic connecting piece (23) is in a force balance state in a case without power because of pre-existing magnetic force between the pre-magnetic element (222) and the permanent magnetic material sleeve. Smaller electromagnetic force is required for driving the elastic connecting piece (23) to move, thereby reducing a drive current and power consumption.

Abstract: A zoom lens driving device and a zoom lens. The driving device comprises a focus motor (402) and a zoom motor (403) that are respectively used for driving a first focus lens group (411) and a first zoom lens group (414) to move axially. At least one of the focus motor and the zoom motor is a disc-type electromagnetic motor in which a stator (410) and a rotor (403) have a hollow structure. The disc-type electromagnetic motor having a hollow structure is used as the lens driving motor, is easy to process, and is easy to be combined with another motor, for example, another disc-type electromagnetic motor or voice coil motor or ultrasonic motor to form a compact structure, thereby meeting the requirements of zoom lens of micro to large sizes.

Abstract: A driving apparatus comprises a stator (21), a rotor (22) and a deformation connector (23). The rotor is connected to the stator through the deformation connector. An external driving force drives the deformation connector to have deformation so that the rotor changes its position with respect to the stator. Under the condition that no external driving force is applied, the deformation connector remains at a force balanced position (x0). The force on the deformation connector comprises a deformation force (F1) of the deformation connector and a first primitive force (F2) in opposite direction to the deformation force (F1). Also provided is a device fabrication method. Because the deformation connector keeps balance under the effect of the deformation force and the first primitive force, a small external driving force is required when the driving apparatus operates near the balance point, hereby reducing power consumption.

Abstract: An electromagnetic motor is provided, which may include a stator (11) and a mover (12). One or both of the stator and the mover may be provided with windings. At least one of the windings is made of printed circuit (13). Because of the use of the printed circuit as windings, not only the working hours for forming the windings by copper wires and the copper material are saved, but also accurate circuit design can be achieved, which facilitates the miniaturization of the electromagnetic motor.

Abstract: A zoom/focus apparatus and corresponding zoom lens assembly are provided. The zoom/focus apparatus may include a first focus lens barrel (101), a first zoom lens barrel (102), a first ultrasonic motor and a second ultrasonic motor which are disposed coaxially. The first focus lens barrel and the first zoom lens barrel are radially unmovable. The caliber of the first zoom lens barrel is larger than that of the first focus lens barrel. The two ultrasonic motors are used to drive the two lens barrels to move axially by the rotation of the rotors (103, 104), respectively. Because the zoom lens barrel which needs to be moved is disposed at outside of the focus lens barrel, by driving the lens barrels using the ultrasonic motors, the telescoping of the zoom lens barrel and the adjusting of the zoom position can be achieved simultaneously.

Abstract: The present invention relates to a mixed multi-spectrum light-sensing pixel group, a light-sensing device, and a light-sensing system. The mixed multi-spectrum light-sensing pixel group includes at least one chemical coating light-sensing pixel and at least one semiconductor light-sensing pixel. In the present invention, the chemical coating light-sensing pixel and the semiconductor light-sensing pixel are combined to generate a mixed multi-spectrum light-sensing pixel, numerous color signals and other spectral signals may be simultaneously obtained, energy of incident photons can be maximally utilized, and the theoretical upper limit of photoelectric conversion efficiency is achieved or approximately achieved; colors may be completely reconstructed, and meanwhile images of other spectrums including an ultraviolet image, a near-infrared image, and a far-infrared image are obtained.

Abstract: Provided are a security surveillance system and an alarm triggering method thereof. The method includes steps of: acquiring, by a first processor, a first signal indicating that an infrared sensor is triggered; controlling, according to the first signal, a first lens to capture a first image; acquiring a stored first background image; comparing the first image and the first background image to obtain a difference; and triggering a first alarm operation if the difference meets a preset condition. By using a manner in which infrared sensor detection and image difference detection function together, the probability of false alarm caused by high ambient temperature can be reduced.

Abstract: The present invention relates to a multi-depth-of-field light-sensing device, a system, a depth of field extension method, and an optical imaging system. The multi-depth-of-field light-sensing device includes at least two light-sensing pixel layers capable of inducing a light source, where the at least two light-sensing pixel layers are arranged at an interval of a preset distance, so that different light signals from a lens at a specific distance from the light-sensing device are focused to the different light-sensing pixel layers. The multi-depth-of-field light-sensing device of the present invention can implement automatic focusing without using any electrically operated mechanism or complex and precise mechanical component, and have good depth of field extension performance.

Abstract: A phone comprises a shell, a first communication module for communicating via a first communication network, a detection signal acquisition component as well as a sensor chip and a processing module for security monitoring, wherein the first communication module, the sensor chip and the processing module are accommodated inside the phone shell, and the detection signal acquisition component is mounted on the surface of the phone shell. Due to the integration of additional components related to security monitoring, the phone disclosed herein becomes an integrated device with both functions of basic communication and security monitoring. In addition, the resulted phone with security monitoring function has good characteristics of stealth and invisibility.