Abstract: A device and a method for measuring spatial color characteristic and resolution are provided. The measuring device includes: a light source, a measuring dial plate and a camera under test, wherein the light source has at least two different spectral power distribution characteristics, the measuring dial plate is provided with a through hole penetrating a thickness direction of the measuring dial plate, the light emitted from the light source passes through the through hole, and the surface of the measuring dial plate is set in black color; the measuring dial plate can also be provided with a measuring pattern, the light emitted from the light source passes through a region other than the measuring pattern. With the device provided in the present disclosure, the spatial color and resolution of the camera can be measured simultaneously, which shortens the manufacture cycle of the camera and reduces measurement cost.

Abstract: A device and a method for measuring spatial color characteristic and resolution are provided. The measuring device includes: a light source, a measuring dial plate and a camera under test, wherein the light source has at least two different spectral power distribution characteristics, the measuring dial plate is provided with a through hole penetrating a thickness direction of the measuring dial plate, the light emitted from the light source passes through the through hole, and the surface of the measuring dial plate is set in black color; the measuring dial plate can also be provided with a measuring pattern, the light emitted from the light source passes through a region other than the measuring pattern. With the device provided in the present disclosure, the spatial color and resolution of the camera can be measured simultaneously, which shortens the manufacture cycle of the camera and reduces measurement cost.

Abstract: The present disclosure relates to the technical field of optical imaging, and in particular, to a lens module. The lens module includes a first lens module and a second lens module. The first lens module is an autofocus module and includes a first lens for imaging and a focus actuator for driving the first lens to perform autofocus. The focus actuator includes a first accommodating space for accommodating the first lens. The second lens module is a fixed-focus module and includes a second lens. The lens module according to the present disclosure can provide an image with good quality at low cost.

Abstract: An apparatus, method and computer program, in which there is provided an apparatus with a body, which apparatus has a set of camera modules mounted on the body, each camera module configured to take images with a first field of view and an adjustment mechanism configured to move the camera modules between a first configuration and a second configuration. In the first configuration, each camera module shares a substantially common field of view that covers a first view area. In the second configuration, the fields of view of the camera modules collectively form a second view area that is continuous and covers a second view area. A zoom-in image is formed in the first configuration using super-resolution combining of the images taken by the camera modules.

Abstract: Two collimated light beams are directed towards an eye to provide two reflection spots. The collimated light beams are advantageously provided by a diffractive beam expander. The reflection spots and the pupil of the eye are monitored by an imaging unit. The collimated beams are at different angles with respect to the imaging unit. The gaze direction is determined based on the angles, the positions of the reflections spots, and the position of the pupil. Thanks to the use of the two collimated beams, the detected gaze direction is substantially independent of the size of the eye, independent of the lateral position of the eye, and independent of the distance between the imaging unit and the eye. The detected gaze angle may be used for selecting between options displayed by a virtual display.

Abstract: An apparatus, method and computer program, in which there is provided an apparatus with a body, which apparatus has a set of camera modules mounted on the body, each camera module configured to take images with a first field of view and an adjustment mechanism configured to move the camera modules between a first configuration and a second configuration. In the first configuration, each camera module shares a substantially common field of view that covers a first view area. In the second configuration, the fields of view of the camera modules collectively form a second view area that is continuous and covers a second view area. A zoom-in image is formed in the first configuration using super-resolution combining of the images taken by the camera modules.

Abstract: Two collimated light beams are directed towards an eye to provide two reflection spots. The collimated light beams are advantageously provided by a diffractive beam expander. The reflection spots and the pupil of the eye are monitored by an imaging unit. The collimated beams are at different angles with respect to the imaging unit. The gaze direction is determined based on the angles, the positions of the reflections spots, and the position of the pupil. Thanks to the use of the two collimated beams, the detected gaze direction is substantially independent of the size of the eye, independent of the lateral position of the eye, and independent of the distance between the imaging unit and the eye. The detected gaze angle may be used for selecting between options displayed by a virtual display.

Abstract: A method for transmitting power wirelessly between a power transmitter comprising a light source, means for directing the light emitted by the light source in a desired direction, and means for controlling the intensity of the light emitted by the light source, and at least one power receiver comprising a photo-detector for receiving emitted light and for converting it into electric current. The light source of the power transmitter transmits a parallel light, the intensity of which is substantially less than the allowed maximum eye exposure. The photo-detector of the power receiver detects the light emitted by the light source and determines the integrity of the light beam, and the power receiver transmits a control signal to the power transmitter. The intensity of the light transmitted by the light source of the power transmitter is increased in response to receiving from the power receiver a control signal.

Abstract: A wireless surveillance system that comprises a base station and surveillance devices, such as cameras. The base station comprises a radio frequency transceiver and a power transmitter including a first and second light source and means for directing the first light source in a desired direction. The power of the second light source is substantially lower than that of the first, and it is transmitted parallel around the light emitted by the first light source. The surveillance device comprises a radio frequency transceiver and a power receiver including a first photo-detector for receiving emitted light and a second photo-detector for detecting the light emitted by the second light source. The surveillance device transmits a control signal to the base station, which first switches on the second light source and, in response to the control signal received from the surveillance device, switches on the first light source.