Abstract:
In a method and a device for detecting the light power emitted by an LED light source, the LED light source is driven with a drive signal corresponding to a binary code. The light emitted by the LED light source is detected by means of a sensor system. The output signal of the sensor system is evaluated in a control and regulating unit. The LED light source is driven with a binary code having an irregular bit sequence.
Abstract:
The present invention relates to a optical lighting device comprising several solid state light sources (2) and at least one optical sensor (4) arranged between the solid state light sources (2) in approximately the same plane. An optical deflection unit (5, 13) is mounted in front of the sensor (4) and designed to deflect light laterally emitted by the solid state light sources (2) to the optical sensor (4). The deflection unit (5, 13) is designed to inhibit the transmission of ambient light to the optical sensor (4).
Abstract:
Enlargement of faulty pixel portions caused by irradiation of radiation is prevented in a radiation image detector equipped with a charge generating layer for generating charges when the radiation is irradiated thereon. Radiation irradiation suppressing members, for suppressing the irradiation of radiation, are provided at faulty pixel portions, which are detected in advance.
Abstract:
The present invention provides a photodetector for weak light that can prevent noise from impurities, prevent electrodes from disconnecting from the substrate, and can be easily cooled; the present invention further provides a photodetector for weak light that can count the number of photons; the present invention solves the above problems by using an ultraviolet light transparent substrate on the photodetector for weak light.
Abstract:
An image pickup device providing favorable images which effectively suppress the interference stripe noise originating in the interference stripes created on an image sensor surface of the image pickup device. The image pickup device includes an image sensor 3 and an overlying lid glass 2. By providing a prescribed inclination angle with respect to the relative position of the image sensor 3 and the lid glass 2 protecting it, the same number of interference stripes are provided with respect to each constitutional image-defining element within the image sensor 3, and prevention of interference stripe noise is achieved by leveling the average light intensity each constitutional image-defining element receives so that sensitizing of interference stripe noise does not occur at the specific elements.
Abstract:
An improved power meter for measuring the energy and wavelength of light emanating from an optical fiber. The meter is an integrating sphere having a source aperture for receiving the tip of an optical fiber and coupling the light from the tip into the sphere's central cavity. The source aperture is modified to include a sterilizable, liquid-fillable insert which mimics the optical environment within tissue. The sphere also has improved baffling and the sensitivity of wavelength verification is improved by means of a rotatable interference filter placed between an exit aperture and a light detector.
Abstract in simplified Chinese:本发明涉及一种功能单元,此功能单元具有一或多个功能组件及一个带有表面的印刷电路板基板。本发明的目的是为功能单元提出能够抑制要测量之波长范围之外的干扰辐射的措施,以使功能单元对于要测量之波长范围之外的其他波长范围不具备敏感性,因此测量值不会因为干扰辐射而产生误差,为达到上述目的,本发明提出的方法是将功能单元埋在印刷电路板基板内,或是将功能单元设置在印刷电路板基板上,并以辐射不透明剂将功能单元及/或该至少一个功能组件环绕住。
Abstract:
PROBLEM TO BE SOLVED: To improve incident efficiency of light that has transmitted color filters having different spectral characteristics from each other to photoelectric conversion elements, and suppress color mixing in an imaging device in which a partition wall is provided to a boundary of the color filters.SOLUTION: An imaging element 10 includes: a plurality of photoelectric conversion elements that receive irradiation of light, and convert the light into electric charge; color filter layers CF that are respectively provided corresponding to the photoelectric conversion elements, and have different spectral characteristics from each other; and a partition wall 22 that is provided to a boundary of the color filter layers CF, and has a refractive index lower than that of the color filter layers CF. The partition wall 22 is formed such that a gap of the partition wall 22 on a light-emission side is narrower than a gap of the partition wall 22 on a light-incident side.
Abstract:
PROBLEM TO BE SOLVED: To provide an optical position detecting device capable of preventing the effects of sensitivity directivity of a light detector from being received easily, even when a position is detected by utilizing the intensity distribution of position detection light within a detection region, and to provide a display apparatus having a position detection function. SOLUTION: The optical position detecting device forms an intensity distribution of a position detection light irradiated from a light source for position detection in the detection region and receives the position detection light reflected by a target object by the light detector 15 to detect the position of the target object. The light detector 15 includes a light-receiving element 150 and a holder member 155, and the holder member 155 is constituted of a slit 158. The width dimension of the slit 158 increases as an angle formed to a central light axis L150 increases, and eliminates sensitivity directivity of the light-receiving element 150. COPYRIGHT: (C)2011,JPO&INPIT