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    • 7. 发明授权
    • Watercraft ventilation system
    • 船舶通风系统
    • US06435119B1
    • 2002-08-20
    • US09938830
    • 2001-08-27
    • Martin PelletierJacques BeaudoinFrançois Giroux
    • Martin PelletierJacques BeaudoinFrançois Giroux
    • B63B3573
    • B63B29/04B63B35/731B63B2029/043B63J2/06
    • A watercraft is provided that includes a rearwardly facing ventilation opening, which allows ambient air to flow into a hull assembly of the watercraft. A seat is provided that has a seating surface configured to accommodate at least one rider seated thereon. The seat is mounted on the hull assembly such that the seat covers the ventilation opening of the hull assembly to obstruct water from flowing therein and forms one or more air pathways between the seat and hull assembly. Each of the one or more air pathways has one end open to the atmosphere and an opposite end open to the ventilation opening to enable air to flow between the atmosphere and the ventilation opening between the seat and the hull assembly via the one or more air pathways.
    • 提供了一种船舶,其包括面向后的通风开口,其允许环境空气流入船体的船体组件。 提供一个座椅,座椅座具有一个座椅,用于容纳至少一名坐在其上的骑手。 座椅安装在船体组件上,使得座椅覆盖船体组件的通风开口以阻止水流入其中,并在座椅和船体组件之间形成一个或多个空气通路。 一个或多个空气路径中的每一个具有通向大气的一端,并且通向通风开口的相对端,以使得空气能够经由一个或多个空气路径在空气和座椅与船体组件之间的通风口之间流动 。
    • 8. 发明授权
    • Method and apparatus for spectrally designing all-fiber filters
    • 用于光谱设计全纤滤光片的方法和装置
    • US6130973A
    • 2000-10-10
    • US48698
    • 1998-03-26
    • Jocelyn LauzonMartin GuyYves PainchaudMartin Pelletier
    • Jocelyn LauzonMartin GuyYves PainchaudMartin Pelletier
    • G02B6/34
    • G02B6/02152G02B6/02085G02B6/02138
    • A method and an apparatus to photoinduce a grating or other type of modulated refractive index change in a photosensitive optical medium such as optical fiber. The resulting grating has a variable and controllable intensity profile and average value of the index change. The modulated refractive index change is photoimprinted in the medium in a series of writing steps, each comprising exposing a segment of the medium to a writing beam for a predetermined exposure time. To change the modulation intensity from step to step, the angle of incidence of the writing beam is dithered for an appropriate fraction of the exposure time at each step. This allows to control the amount of incident light on the medium for each step. If the exposure time is the same for each writing step, the average value of the index change may be kept constant avoiding undesired structure in the grating frequency response.
    • 在诸如光纤的感光光学介质中光诱导光栅或其它类型的调制折射率变化的方法和装置。 所得到的光栅具有可变且可控的强度分布和折射率变化的平均值。 经调制的折射率变化在介质中以一系列写入步骤进行光印,每个步骤包括将介质的一段曝光到写入光束以达预定的曝光时间。 为了从步进到步骤改变调制强度,写入光束的入射角被抖动以在每个步骤的适当分数的曝光时间。 这允许在每个步骤中控制介质上入射光的量。 如果对于每个写入步骤的曝光时间相同,则可以保持索引变化的平均值,避免光栅频率响应中的不期望的结构。