Abstract: An apparatus has a light emitting diode module that has one or more light emitting diodes each with a light emitting circuitry. The apparatus further has a controller functionally connected with the one or more light emitting circuitries; a housing surrounding the controller and the one or more light emitting circuitries; and a pair of power supply connectors extending outside of the housing and functionally connected with the controller. The controller receives operating power from the pair of power supply connectors and uses the received operating power to control operation of the one or more light emitting circuitries.

Abstract: An apparatus is provided including a voice coil motor (VCM); a lens connected to the voice coil motor; and a pulse-width modulation (PWM) driver connected to the voice coil motor to at least partially control movement of the lens by the voice coil motor.

Abstract: Digital photographing devices traditionally comprise an assist light that illuminates the object being photographed in low light conditions The solution concerns a method comprising exposing an image frame comprising a window of interest; performing an autofocus for the window of interest; and controlling an assist light for the autofocus according to an exposure of the window of interest. The solutions is also targeted to an apparatus and a computer-readable storage means.

Abstract: An apparatus is provided including a voice coil motor (VCM); a lens connected to the voice coil motor; and a pulse-width modulation (PWM) driver connected to the voice coil motor to at least partially control movement of the lens by the voice coil motor.

Abstract: Disclosed herein is an apparatus. The apparatus includes a housing, a first magnet member, a lens holder, and a second magnet member. The first magnet member is connected to the housing. The first magnet member includes a first surface. The lens holder is in the housing. The lens holder includes a lens. The second magnet member is connected to the lens holder. The second magnet member includes a second surface. The second surface is opposite the first surface of the first magnet member. The second magnet member is configured to move in a direction substantially normal to the first surface of the first magnet member when a magnetic force is generated between the first magnet member and the second magnet member.

Abstract: A method including using an optical image stabilization function in an imaging apparatus comprising a lens and an image sensor; acquiring system change information, the system change information concerning changes that affect optical path through the lens to the image sensor during capturing of an image through the lens; adjusting a lens shading correction function on the basis of the acquired system change information; and applying the adjusted lens shading correction function to image data representing the captured image.

Abstract: Gas discharge lamps can be driven with a circuit with a small form factor by an arrangement comprising a planar printed wiring board with at least one coil for driving a gas discharge lamp, wherein a reflector plate of the gas discharge lamp supports the planar printed wiring board.

Abstract: An apparatus including: a processor configured to control a flash unit in an exposure time period of an image sensor array, to provide a first non-zero light intensity in a first portion of the exposure time period and to provide a second non-zero light intensity, different to the first light intensity, in a second portion of the exposure time period.

Abstract: Digital photographing devices traditionally comprise an assist light that illuminates the object being photographed in low light conditions The solution concerns a method comprising exposing an image frame comprising a window of interest; performing an autofocus for the window of interest; and controlling an assist light for the autofocus according to an exposure of the window of interest. The solutions is also targeted to an apparatus and a computer-readable storage means.

Abstract: In a method and a device according to the present invention, two piezo-elements of a piezo-electric actuator are driven with two voltages having a mutual phase difference. One of said piezo-elements is charged by a capacitive voltage step-up means to a voltage exceeding an available power supply voltage. A capacitor is coupled to the piezo-element, which divides the voltage of the piezo-element and simultaneously transfers part of the energy stored in the piezo-element to said capacitor. A part of the energy transferred to said capacitor is later transferred back to said piezo-element, providing an energy-saving feature. The second piezo-element is driven in a similar way providing the required phase difference. In a further embodiment, the waveforms of the two driving signals are corrected using balancing capacitors.

Abstract: Gas discharge lamps can be driven with a circuit with a small form factor by an arrangement comprising a planar printed wiring board with at least one coil for driving a gas discharge lamp, wherein a reflector plate of the gas discharge lamp supports the planar printed wiring board.

Abstract: Disclosed herein is an apparatus. The apparatus includes a housing, a first magnet member, a lens holder, and a second magnet member. The first magnet member is connected to the housing. The first magnet member includes a first surface. The lens holder is in the housing. The lens holder includes a lens. The second magnet member is connected to the lens holder. The second magnet member includes a second surface. The second surface is opposite the first surface of the first magnet member. The second magnet member is configured to move in a direction substantially normal to the first surface of the first magnet member when a magnetic force is generated between the first magnet member and the second magnet member.

Abstract: The invention relates to a method and device for driving a piezo-electric actuator. A driving voltage is coupled to the piezo-electric actuator by an inductive element coupled in series with the piezo-electric actuator. The piezo-electric actuator is adapted to move an object. The frequency of the driving voltage coupled to the piezo-electric actuator is varied and the velocity of the object is recorded as a function of the frequency. Subsequently, an optimum frequency is determined and the frequency of the driving voltage is adjusted to be substantially equal to the optimum frequency. The optimum frequency is preferably associated with a maximum obtainable velocity of the object.

Abstract: The combined actuator described can be incorporated into a miniaturized camera product. In the camera product, the shutter driver uses the focus or zoom actuator's power amplifiers to control the current flow in shutter actuators. As such, the space needed for the camera's electronics is smaller and it is less expensive to manufacture the camera product.

Abstract: The device according to the present invention comprises at least one magnetic field generating element, at least one magneto-resistor and at least one resistance-to-current converter generating a current signal dependent on the resistance value of said at least one magneto-resistor. According to the preferred embodiment of the invention four magneto-resistors are used. A plurality of signals dependent on the ratios of the resistance values of said magneto-resistors are generated, the signals being in different phases. The mutual equality of a predetermined pair of the signals and/or the linear combinations thereof is realized only at predetermined relative positions. The relative position of the movable object is determined by counting the number of such predetermined relative positions passed during the movement of the movable object.

Abstract: The combined actuator described can be incorporated into a miniaturized camera product. In the camera product, the shutter driver uses the focus or zoom actuator's power amplifiers to control the current flow in shutter actuators. As such, the space needed for the camera's electronics is smaller and it is less expensive to manufacture the camera product.

Abstract: In a method and a device according to the present invention, two piezo-elements are driven with two voltages having a phase difference. One of the piezo-elements is charged by an inductive step-up means to a voltage exceeding an available power supply voltage. Subsequently charge, i.e. energy is transferred from the one piezo-element to the other piezo-element by an inductive element. The same inductive element is used in an inductive step-up means and in the transfer of the charge between the two piezo-elements.

Abstract: An improved system and method for driving piezoelectric actuators for devices such as camera modules. The present invention replaces a conventional class D amplifier with a class DE amplifier. The class DE amplifier eliminates the switching losses that would otherwise occur when a class D amplifier is used. The present invention can also adjust the dead time of the amplifier based upon varying ambient temperature levels.

Abstract: The invention relates to a method and device for driving a piezo-electric actuator. A driving voltage is coupled to the piezo-electric actuator by an inductive element coupled in series with the piezo-electric actuator. The piezo-electric actuator is adapted to move an object. The frequency of the driving voltage coupled to the piezo-electric actuator is varied and the velocity of the object is recorded as a function of the frequency. Subsequently, an optimum frequency is determined and the frequency of the driving voltage is adjusted to be substantially equal to the optimum frequency. The optimum frequency is preferably associated with a maximum obtainable velocity of the object.

Abstract: In a method and a device according to the present invention, two piezo-elements are driven with two voltages having a phase difference. One of the piezo-elements is charged by an inductive step-up means to a voltage exceeding an available power supply voltage. Subsequently charge, i.e. energy is transferred from the one piezo-element to the other piezo-element by an inductive element. The same inductive element is used in an inductive step-up means and in the transfer of the charge between the two piezo-elements.