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公开(公告)号：US4738032A
公开(公告)日：1988-04-19
申请号：US385481
申请日：1982-06-07
申请人： William B. Elmer
发明人： William B. Elmer
CPC分类号： G09B23/10
摘要： A pendulum has a weight suspended from a bar at an essentially frictionless pivot near the center of gravity of the weight.
摘要翻译： 摆锤具有在重量重心附近的基本上无摩擦的枢轴处从杆悬挂的重物。
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公开(公告)号：US4569003A
公开(公告)日：1986-02-04
申请号：US636693
申请日：1984-10-19
申请人： William B. Elmer , Thomas M. Lemons
发明人： William B. Elmer , Thomas M. Lemons
CPC分类号： F21V7/0008
摘要： An indirect room lighting system has a diffuse reflecting upper band around the walls about 15 to 24 inches high. A luminaire illuminates this diffuse reflecting band with a beam of light having a radiation pattern broad horizontally and narrow vertically confined essentially to the region of the diffuse reflecting upper bands. The reflector of the luminaire may be positioned at a 45.degree. angle to the walls in the corner, intersecting in the corner, or in the center of the room comprising a Fresnel cylindrical lens, or it may take other forms.
摘要翻译： 间接房间照明系统在墙壁周围具有约15至24英寸高的漫反射上带。 一个照明器照射这个漫反射带，其中一束光线具有横向横向辐射的宽度，并且基本上垂直地限制在漫反射上部波段的区域。 照明器的反射器可以与角部中的壁相交，或者在包括菲涅耳圆柱透镜的房间的中心处与角落处的角度成45度角，或者可以采取其他形式。
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公开(公告)号：US4347555A
公开(公告)日：1982-08-31
申请号：US254945
申请日：1981-04-16
申请人： William B. Elmer
发明人： William B. Elmer
CPC分类号： F21S8/086
摘要： A light source is disposed within a light reflector formed to direct a light beam through an open end of the reflector and light controlling means for projecting a modified light beam from the same reflector.
摘要翻译： 光源设置在形成为将光束引导通过反射器的开口端的光反射器和用于从相同反射器投射经修改的光束的光控制装置。
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4.发明授权
公开(公告)号：US4422133A
公开(公告)日：1983-12-20
申请号：US319251
申请日：1981-11-09
申请人： William B. Elmer
发明人： William B. Elmer
摘要： A luminaire has a spherical or ovoid reflector formed with asymmetrical voids that allow beams from the lightbulb in the reflector to emerge side-by-side through the voids in opposite directions after reflection from opposite internal surfaces of the reflector.
摘要翻译： 照明器具有形成有不对称空隙的球形或卵形反射器，其允许来自反射器中的灯泡的光束在反射器的相对内表面反射之后从相反方向并排出现空隙。
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公开(公告)号：US3494693A
公开(公告)日：1970-02-10
申请号：US3494693D
申请日：1966-06-28
申请人： WILLIAM B ELMER
发明人： ELMER WILLIAM B
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公开(公告)号：US3706218A
公开(公告)日：1972-12-19
申请号：US3706218D
申请日：1970-05-25
申请人： WILLIAM B ELMER
发明人： ELMER WILLIAM B
CPC分类号： B21D47/00 , B21D13/02 , B21D53/883 , F21V7/10 , F21V7/22
摘要： A reflecting surface provides a controlled degree of diffusion by forming a number of generally congruent depressions of predetermined depth and shape. The surface prior to forming the depressions is typically essentially a specular reflecting surface. The depressions may be formed by placing the specular reflecting sheet between two opposed dies having intermeshing projections, each projection typically covering about one-third the area between adjacent projections and of generally pyramidal shape with rounded tops.
摘要翻译： 反射表面通过形成多个具有预定深度和形状的大致一致的凹陷来提供受控的扩散程度。 在形成凹陷之前的表面通常基本上是镜面反射表面。 凹陷可以通过将镜面反射片放置在具有相互啮合的突起的两个相对的模具之间来形成，每个突起通常覆盖相邻突起之间的大约三分之一的区域，并且具有圆形顶部的大体金字塔形形状。
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公开(公告)号：US3578841A
公开(公告)日：1971-05-18
申请号：US3578841D
申请日：1967-12-15
申请人： WILLIAM B ELMER
发明人： ELMER WILLIAM B
CPC分类号： G03B21/625
摘要： A rear projection screen has a rear surface that provides lens action for collimating incident light rays on essentially the entire screen surface into parallel rays directed essentially perpendicular to the front surface. The front surface is formed with a number of generally parallel closely spaced ribs that diverge incident light rays over a prescribed viewing angle so that anyone within the prescribed viewing angle sees the image projected on the screen with essentially equal brightness. For wide viewing angles the ribs are preferably arranged in clusters so that respective ribs in a cluster direct light rays to respective angular sectors of the viewing region.
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公开(公告)号：US3553644A
公开(公告)日：1971-01-05
申请号：US3553644D
申请日：1967-08-23
申请人： WILLIAM B ELMER
发明人： ELMER WILLIAM B
CPC分类号： B60Q1/20
摘要： THE BACKUP LIGHT OF AN AUTOMOBILE IS FLASHED INTERMITTENTLY DURING PERIODS OF LOW VISIBILITY WHILE THIS CONDITION IS ALSO INDICATED BY A FLASHING SIGNAL VISIBLE TO THE DRIVER.
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公开(公告)号：US3398272A
公开(公告)日：1968-08-20
申请号：US51204265
申请日：1965-12-03
申请人： WILLIAM B. ELMER
发明人： ELMER WILLIAM B
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公开(公告)号：US4288847A
公开(公告)日：1981-09-08
申请号：US49087
申请日：1979-06-18
申请人： William B. Elmer
发明人： William B. Elmer
摘要： A light source is disposed within a light reflector formed to direct a light beam through an open end of the reflector and light controlling means for projecting a modified light beam from the same reflector.
摘要翻译： 光源设置在形成为将光束引导通过反射器的开口端的光反射器和用于从相同反射器投射经修改的光束的光控制装置。
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