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公开(公告)号：EP3296765A1
公开(公告)日：2018-03-21
申请号：EP15891818.5
申请日：2015-05-12
摘要： A wind velocity searching unit 30 is configured so as to, when a spectrum signal calculated by a spectrum calculating unit 22 is one in a range bin having a signal strength less than a first threshold Th 1 , determine a search center IF of the search scope for a Doppler frequency corresponding to a wind velocity in the range bin by using a wind velocity model selected by a wind velocity model selecting unit 29, and search for the wind velocity in the range bin from the spectrum signal within the search scope whose search center IF is determined thereby. As a result, the probability that the peak of noise is detected erroneously as the peak of the spectrum signal is reduced.
摘要翻译： 风速搜索单元30被配置为，当由频谱计算单元22计算的频谱信号在信号强度小于第一阈值Th1的范围区间中是一个时，确定搜索范围的搜索中心IF 使用由风速模型选择部29选择的风速模型，求出与范围区间内的风速对应的多普勒频率，根据搜索范围内的频谱信号来搜索范围区间内的风速 由此确定。 结果，随着频谱信号的峰值减小，错误地检测到噪声的峰值的概率。
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公开(公告)号：EP1860478B1
公开(公告)日：2018-04-25
申请号：EP06715405.4
申请日：2006-03-08
IPC分类号： G02B17/00
CPC分类号： G02B17/0626
摘要： Provided is a compact and bright imaging optical system having a high resolution. The imaging optical system includes three reflectors composed of a first reflector (1), a second reflector (2), and a third reflector (3) that are arranged in this order on an optical path of incident ray so as not to block the incident light. In the imaging optical system, in which light beams reflected by the three reflectors form an image plane (4), a convex mirror is used for any one of the first reflector (1) and the third reflector (3) and a concave mirror is used for the other thereof, and vertexes of a triangular dipyramid (6) are defined in terms of a central chief ray (5) by an appropriate point on the central chief ray (5) that is incident to the first reflection surface, a reflection point of each central chief ray on the first to third reflection surfaces, and an image forming point of the central chief ray. A plane containing three reflection points of the central chief ray on the first to third reflection surfaces coincides with a bonding plane between two triangular pyramids forming the triangular dipyramid (6).
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公开(公告)号：EP3232226A1
公开(公告)日：2017-10-18
申请号：EP14908007.9
申请日：2014-12-12
摘要： A laser radar device is described that includes a multi-wavelength light oscillator 1 to generate a plurality of light beams with different wavelengths, a plurality of modulation units 3 to modulate each of the plurality of light beams generated by the multi-wavelength light oscillator with a modulation frequency altered according to a corresponding line of sight of emission, a transmitting/receiving optical system 8 to emit each of the light beams modulated by the modulation units in a corresponding line of sight, and receive reflected light beams, an optical receiver 11 to perform heterodyne detection by using the generated light beams and the received light beams corresponding to the generated light beams, and detect beat signals in the respective lines of sight, and a signal analyzing unit 12 to calculate a value of Doppler wind speed in the respective lines of sight from the respective beat signals, and calculate a value of three-dimensional wind speed using the values of Doppler wind speed
摘要翻译： 描述了激光雷达装置，其包括：多波长光振荡器1，用于产生具有不同波长的多个光束;多个调制单元3，用于利用多波长光振荡器产生的多个光束中的每一个来调制 根据相应的发射视线改变的调制频率;发射/接收光学系统8，用于发射由调制单元调制的在对应视线中的每个光束，并接收反射光束;光接收器11 通过使用产生的光束和与所产生的光束相对应的接收光束来执行外差检测，并且检测各个视线中的差拍信号，以及信号分析单元12，用于计算相应的多普勒风速的值 来自各个差拍信号的视线，并且使用多普勒值来计算三维风速的值 风速
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公开(公告)号：EP3296765B1
公开(公告)日：2019-11-13
申请号：EP15891818.5
申请日：2015-05-12
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公开(公告)号：EP3474056A1
公开(公告)日：2019-04-24
申请号：EP16914206.4
申请日：2016-08-25
摘要： Included are a plano-convex lens (1) in which a surface on a light incidence side thereof is convex and a surface on a light emission side thereof is flat; a biconcave lens (2) having negative refracting power on which light emitting from the plano-convex lens (1) is incident; a meniscus lens (3) having negative refracting power on which light emitting from the biconcave lens (2) is incident; a plano-convex lens (4) in which a surface on a light incidence side thereof is flat and a surface on a light emission side thereof is convex, and on which light emitting from the meniscus lens (3) is incident; and a barrel (10) that holds the plano-convex lens (1), the biconcave lens (2), the meniscus lens (3), and the plano-convex lens (4).
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公开(公告)号：EP3460553A1
公开(公告)日：2019-03-27
申请号：EP16904605.9
申请日：2016-06-08
摘要： An optical antenna device (1) includes: an optical lens system (13) for focusing a laser beam; an optical-system holding member (10) for holding an outer peripheral edge of the optical lens system (13); an optical connection member (20) placed on a rear focal plane of the optical lens system (13); first shaft portions (15A, 15C) extending from an end of the optical-system holding member (10) toward the optical connection member (20) and each having a first linear expansion coefficient; and second shaft portions (16A, 16C) extending from an end portion of the optical connection member (20) toward the optical-system holding member (10). The second shaft portions (16A, 16C) each have a second linear expansion coefficient different from the first linear expansion coefficient. The first shaft portions (15A, 15C) and the second shaft portions (16A, 16C) are respectively fixed to each other at a predetermined fixing position between the optical-system holding member (10) and the optical connection member (20).
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