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公开(公告)号：US4118114A
公开(公告)日：1978-10-03
申请号：US698116
申请日：1976-06-21
IPC分类号： G02B1/04 , G02B3/08 , G03B21/132 , G03B21/14
CPC分类号： G03B21/132 , G02B1/04 , G02B3/08 , Y10S353/03
摘要： An overhead projector that uses as a condensing lens a linear echelon lens structure comprising a combination of linear echelon lens elements between the light source and stage of the projector to minimize glare emanating from the condensing lens.
摘要翻译： 一种高架投影仪，其使用线性梯形透镜结构作为聚光透镜，其包括在投影仪的光源和舞台之间的线性梯形透镜元件的组合，以最小化从聚光透镜发出的眩光。
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公开(公告)号：US5405176A
公开(公告)日：1995-04-11
申请号：US196665
申请日：1994-02-15
CPC分类号： F16L13/146 , B21D39/04 , Y10T29/49885 , Y10T29/49934
摘要： A relatively impervious mechanical seal is formed between the outer surface of a tube and the inside surface of a mechanical fitting of a high pressure fluid or hydraulic system by applying a very thin soft metal layer onto the outer surface of the hard metal tube and/or inner surface of the hard metal fitting, prior to swaging the fitting onto the tube. The thickness of such thin metal layer is independent of the size of the tube and/or fittings. Many metals and alloys of those metals exhibit the requisite softness, including silver, gold, nickel, tin, platinum, indium, rhodium and cadmium. Suitably, the coating is about 0.0025 millimeters (0.10 mils) in thickness. After swaging, the tube and fitting combination exhibits very low leak rates on the order or 10.sup.-8 cubic centimeters per second or less as meaured using the Helium leak test.
摘要翻译： 在管的外表面和高压流体或液压系统的机械配件的内表面之间通过将非常薄的软金属层施加到硬金属管的外表面上和/或 在将配件模锻到管上之前，硬金属配件的内表面。 这种薄金属层的厚度与管和/或配件的尺寸无关。 这些金属的许多金属和合金表现出必需的柔软度，包括银，金，镍，锡，铂，铟，铑和镉。 适当地，涂层厚度约为0.0025毫米（0.10密耳）。 在模锻之后，管和配件组合使用氦泄漏测试进行测量，显示出非常低的泄漏率或10-8立方厘米每秒或更少的泄漏率。
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公开(公告)号：US4108540A
公开(公告)日：1978-08-22
申请号：US697017
申请日：1976-06-17
CPC分类号： G02B3/08 , F24J2/085 , F24J2/1047 , G02B19/0028 , G02B19/0042 , Y02E10/43 , Y10S126/909
摘要： A small-area focus solar concentrator comprising a linear echelon refractor and a linear echelon reflector. The increments of the refractor are crossed at approximately 90.degree. to the increments of the reflector. The refractor and reflector cooperate to focus solar radiation incident on the front surface of the refractor to a small area focus in front of the refractor.The refractor-reflector structure permits relatively low cost, high power concentrators using refractor-reflector matrices. Also, the refractor-reflector structure can be used to focus normal or non-normal incident radiation outside the path of the radiation to reduce or eliminate blockage of the radiation by an absorber located at the focus.
摘要翻译： 包括线性梯形折射仪和线性梯形反射器的小面积聚焦太阳能集中器。 折射器的增量与反射器的增量大约90度交叉。 折射器和反射器配合以将入射到折射器的前表面上的太阳辐射聚焦到折射镜前面的小区域焦点。
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公开(公告)号：US3972593A
公开(公告)日：1976-08-03
申请号：US484619
申请日：1974-07-01
IPC分类号： G02B3/08
CPC分类号： G02B3/08
摘要： Louvered echelon lenses are provided that comprise an optically clear layer having at least one of its large-area surfaces configured as a set of echelon lens elements, and physically attached in optical connection with said layer, an internally louvered layer that comprises an optically clear polymeric matrix and a set of thin optically limiting louvers supported within the matrix in a spaced side-by-side relation.
摘要翻译： 提供了一种透明的梯形透镜，其包括光学透明层，其具有被构造为一组梯形透镜元件的至少一个其大面积表面，并且与所述层物理连接成光学连接，内部百叶窗层包括光学透明聚合物 矩阵和一组薄的光学限制百叶窗，其以间隔开的并排关系支撑在矩阵内。
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公开(公告)号：US5560661A
公开(公告)日：1996-10-01
申请号：US387106
申请日：1995-02-10
CPC分类号： F16L13/146 , F16L19/0218 , F16L19/0653 , Y10T428/265
摘要： A relatively impervious mechanical seal is formed between the outer surface of a tube and the inside surface of a mechanical fitting of a high pressure fluid or hydraulic system by applying a very thin soft metal layer onto the outer surface of the hard metal tube and/or inner surface of the hard metal fitting. The thickness of such thin metal layer is independent of the size of the tube and/or fittings. Many metals and alloys of those metals exhibit the requisite softness, including silver, gold, tin, platinum, indium, rhodium and cadmium. Suitably, the coating is about 0.0025 millimeters (0.10 mils) in thickness. After compression, the tube and fitting combination exhibits very low leak rates on the order or 10.sup.-8 cubic centimeters per second or less as measured using the Helium leak test.
摘要翻译： 在管的外表面和高压流体或液压系统的机械配件的内表面之间通过将非常薄的软金属层施加到硬金属管的外表面上和/或 硬质金属配件的内表面。 这种薄金属层的厚度与管和/或配件的尺寸无关。 这些金属的许多金属和合金具有必需的柔软度，包括银，金，锡，铂，铟，铑和镉。 适当地，涂层厚度约为0.0025毫米（0.10密耳）。 压缩后，管和配件组合显示出非常低的泄漏率，即使用氦气泄漏测试测量，每秒或10-8立方厘米每秒或更少。
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公开(公告)号：US4082433A
公开(公告)日：1978-04-04
申请号：US649217
申请日：1976-01-14
IPC分类号： G02B3/08
CPC分类号： G02B3/08
摘要： Louvered echelon lenses are provided that comprise an optically clear layer having at least one of its large-area surfaces configured as a set of echelon lens elements, and physically attached in optical connection with said layer, an internally louvered layer that comprises an optically clear polymeric matrix and a set of thin optically limiting louvers supported within the matrix in a spaced side-by-side relation.
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公开(公告)号：US3979160A
公开(公告)日：1976-09-07
申请号：US554418
申请日：1975-03-03
申请人： Raymond H. Anderson , Ning Wu
发明人： Raymond H. Anderson , Ning Wu
IPC分类号： F21V7/08 , G02B21/08 , G03B21/132 , G03B21/20 , G03B27/54 , G03B21/08 , F21V7/00 , F21V13/04
CPC分类号： G03B21/132
摘要： A compact portable overhead projector providing improved uniformity and efficiency of illumination employs an off-focus light source within a truncated light-diffusing ellipsoidal reflector in conjunction with an off-focus aperture plate adjacent the open end of the reflector.
摘要翻译： 提供改进的照明均匀性和效率的紧凑型便携式高架投影仪结合邻近反射器的开口端的偏焦孔板，在截短的光扩散椭圆反射器内采用离焦光源。
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