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公开(公告)号：US5930027A
公开(公告)日：1999-07-27
申请号：US22980
申请日：1998-02-12
CPC分类号： G02B6/4214 , G02B26/0841 , H04N5/7416
摘要： A fiber optic spatial light modulation system which includes a light source which produces source light, an optical fiber bundle which includes a plurality of individual optical fibers, and a spatial light modulator which is interposed between the light source and the optical fiber bundle, and which selectively modulates the amount of the source light coupled into each of the individual optical fibers, wherein the amount of the source light coupled into different ones of the individual optical fibers can be unequal. In the disclosed embodiment, the spatial light modulator is a digital micromirror device which includes an array of micromirrors, a semiconductor memory which includes an array of memory cells, wherein each of the memory cells is associated with a respective one of the micromirrors and stores a bit of binary data, and the system employs a digital microprocessor which executes a desired control algorithm and sends the binary data to appropriate ones of the memory cells to selectively drive the micromirrors into an on position or an off position in accordance with the binary value of the binary data. Each of the individual optical fibers has associated therewith a plurality of micromirrors which are each oriented to couple the source light into the corresponding individual optical fiber when in the on position and to not couple the source light into the corresponding individual optical fiber when in the off position.
摘要翻译： 一种光纤空间光调制系统，包括产生源光的光源，包括多个单独的光纤的光纤束，以及介于光源和光纤束之间的空间光调制器， 选择性地调制耦合到每个单独光纤中的源光的量，其中耦合到各个单独光纤中的源光的量可以是不相等的。 在所公开的实施例中，空间光调制器是包括微镜阵列的数字微镜器件，包括存储器单元阵列的半导体存储器，其中每个存储器单元与相应的一个微镜相关联并存储 二进制数据位，并且系统采用执行期望的控制算法的数字微处理器，并将二进制数据发送到适当的存储单元，以根据二进制值的二进制值选择性地将微镜驱动到打开位置或关闭位置 二进制数据。 每个单独的光纤具有多个微反射镜，每个微型反射镜在取向时将其定向成在处于接通位置时将源光耦合到相应的单独光纤中，并且当处于关闭状态时不将源光耦合到相应的单独光纤中 位置。
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公开(公告)号：US5782253A
公开(公告)日：1998-07-21
申请号：US204852
申请日：1994-03-02
CPC分类号： B24C1/086 , B08B7/0035 , B08B7/0042 , B23K26/144 , B23K26/364 , B24C1/003 , B44D3/166
摘要： A system is provided for removing material from a structure having at least one layer of the material formed on a substrate. The system includes a radiant energy source, such as a flashlamp, with an actively cooled reflector for irradiating a target area of a structure with radiant energy, preferably sufficiently intense in at least the visible and ultraviolet, to break or weaken chemical bonds in the material, and an abrasive blaster for impinging the material after irradiation with a cool particle stream, preferably including of CO.sub.2 particles, to remove the irradiated material and cool the substrate. The system may also include light sensors used in a feedback loop to control the removal process by varying the speed at which the radiant energy source is moved along the structure, the repetition rate of the source, the intensity of the source, the pulse width of the source and/or the distance between the source and the structure.
摘要翻译： 提供了一种从具有至少一层形成在基底上的材料的结构中去除材料的系统。 该系统包括诸如闪光灯的辐射能源，其具有主动冷却的反射器，用于以至少可见光和紫外线照射具有辐射能的结构的目标区域，优选地足够强度以破坏或削弱材料中的化学键 以及用于用优选包括CO 2颗粒的冷颗粒流照射之后冲击材料的研磨剂，以去除所辐射的材料并冷却基底。 该系统还可以包括在反馈环路中使用的光传感器，以通过改变辐射能源沿着结构移动的速度，源的重复率，源的强度，源的脉冲宽度来控制去除过程 源和/或源和结构之间的距离。
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13.发明授权Method and apparatus for removing contaminants and coatings from a substrate using pulsed radiant energy and liquid carbon dioxide 失效使用脉冲辐射能和液体二氧化碳从基板去除污染物和涂层的方法和装置
公开(公告)号：US5613509A
公开(公告)日：1997-03-25
申请号：US460732
申请日：1995-06-02
CPC分类号： B24C1/086 , B08B7/0035 , B08B7/0042 , B23K26/144 , B23K26/364 , B24C1/003 , B44D3/166
摘要： An improved system and method are provided for removing material coatings or contaminants such as paints from a structure. The system and method include a radiant energy source, such as a flashlamp, for irradiating the target area of the structure with the radiant energy sufficient to initiate the pyrolysis and/or ablation of the coating or contaminant and a low temperature carbon dioxide stream which is directed at the target area to disperse the material from the structure, clean the exposed surface and cool the underlying substrate. The low temperature carbon dioxide stream is formed from a liquid carbon dioxide from a liquid carbon dioxide source which undergoes phase transition to yield a predetermined amount of low temperature carbon dioxide gas and carbon dioxide snow. The system and method eliminate the need for a carbon dioxide pelletizer, a carbon dioxide pellet transport hopper, and a compressed carrier gas which are used in related systems.
摘要翻译： 提供改进的系统和方法用于从结构中去除材料涂层或污染物，例如油漆。 该系统和方法包括辐射能源，例如闪光灯，用于以足以引发涂层或污染物的热解和/或消融的辐射能辐射结构的目标区域，以及低温二氧化碳流 指向目标区域以分散来自结构的材料，清洁暴露的表面并冷却下面的基底。 低温二氧化碳流由来自液态二氧化碳源的液态二氧化碳形成，其经历相变以产生预定量的低温二氧化碳气体和二氧化碳积雪。 该系统和方法消除了在相关系统中使用的二氧化碳造粒机，二氧化碳球粒输送料斗和压缩载气的需要。
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