Abstract:
Provided is a test apparatus that tests a device under test including an optical coupler transmitting optical signals in a direction perpendicular to a device surface. The test apparatus comprises a substrate on which the device under test is to be loaded; an optical transmission path that transmits the optical signals: and a lens section that is provided facing the optical coupler on the substrate and that focuses the optical signals from an end of one of the optical coupler and the optical transmission path to an end of the other.
Abstract:
An image reading device has: a light source at which plural light-emitting elements are arrayed; a detection unit that detects light amounts of illumination light which are emitted from the light-emitting elements and are reflected by a reference plate; a derivation unit; and an adjustment unit. On the basis of detected light amounts, the derivation unit derives difference amounts between a reference value and average values of light amounts per predetermined first number of adjacent light-emitting elements. On the basis of the derived difference amounts, the adjustment unit adjusts light amounts per the first number of light-emitting elements such that the average values become the reference value.
Abstract:
PROBLEM TO BE SOLVED: To provide a device and method for uniformizing luminous intensity of a light source of a digital image test member for uniformizing the luminous intensity of an artificial light source, while keeping a color temperature constant, and a device and method for a digital image hue test utilizing the device and method for uniformizing the luminous intensity of the light source of the digital image test member, constituting various artificial light sources usable in a range from a low-illuminance environment to a high-illuminance environment, while keeping the color temperature constant by various color temperatures. SOLUTION: The device for uniformizing the luminous intensity of the light source of the digital image test member includes a polygonal rotating column installed in a sealed space, rotatable at each prescribed angle; a plurality of light sources for irradiating light to an image test member attached to one surface of the sealed space in order to test a digital image, mounted on each face of the polygonal rotating column; a plurality of illuminance measuring devices for measuring the illuminance of light irradiated to the image test member; and a rotating column control part for rotating the polygonal rotating column at each prescribed angle so that each illuminance value measured by the illuminance measuring devices becomes uniform. COPYRIGHT: (C)2008,JPO&INPIT
Abstract in simplified Chinese:本发明提供一种构造简单、能实现高精度测定之发光二极管的光量测定设备。光量测定设备3具备:一受光模块1,其系与LED101相向配置,接收从LED101所发出之放射状的光,并测定其光量;一探针109,其系供给电力至LED101,以使LED101发光;以及一受光范围设置机构,其系根据相对于LED101的发光中心轴LCA之角度θ,对从LED101发出的光之中使受光模块1受光之光范围即受光范围进行设置。在一切割片103b上排列有多个LED101。受光范围设置机构在受光模块1接收由多个排列之LED101所发出的光时,将受光范围设置为不论LED101的排列形态为何,使接收到的光之光量的测定误差在规定比率以下。
Abstract:
In order to allow a solar tracking system to track the position of the sun, surroundings of the sun are recognized from first camera images collected by a first camera, and then it is determined whether the position of the sun is tracked by a first method or a second method, based on the surroundings of the sun. If the position of the sun is tracked by the first method, coordinates are obtained from second camera images collected by a second camera, and then the position of the sun is tracked from the obtained coordinates.
Abstract:
PURPOSE: A tracking device of a condenser is provided to minimize the influence of heat on the condenser, to prevent heat damage to an optical sensor, and to enhance light collection efficiency. CONSTITUTION: A tracking device of a condenser comprises a sensor fixing unit, first and second optical sensors(120,130), a third optical sensor(140), and a control unit. The sensor fixing unit is mounted along the longitudinal direction of the condenser(12). The first and the second optical sensor are mounted at the sensor fixing part. The third optical sensor is fixed to the sensor fixing part to be positioned in the middle of the first and the second optical sensor and outputs a signal by sensing light quantity. The control unit receives the signal which is outputted from the each optical sensor and controls a rotary driving unit by using the sensor which senses the light quantity. [Reference numerals] (AA) East; (BB) West