公开(公告)号：US4081667A

公开(公告)日：1978-03-28

申请号：US708859

申请日：1976-07-28

申请人： Ian Lewin ,  Edward S. Small, Jr.

发明人： Ian Lewin ,  Edward S. Small, Jr.

IPC分类号： F21V3/04 ,  F21V7/04 ,  F21V7/22 ,  F21V7/09 ,  F21V7/00

CPC分类号： F21V7/09 ,  F21V7/04 ,  F21V7/22 ,  F21V3/04 ,  F21V3/0472 ,  F21W2131/103

摘要： Lighting fixture having housing with an open side. A lamp is mounted in the housing and produces rays which pass through the open side. The housing carries an internal reflecting surface for reflecting light rays from the lamp through the open side. The internal reflecting surface includes Fresnel type portions for reflecting light rays from the lamp at high angles through the open side. In certain applications, the open side would be enclosed by a glass enclosure. In order to increase the efficiency of the lighting fixture, an anti-reflection coating can be provided on both sides of the glass enclosure. BACKGROUND OF THE INVENTIONMany different types of lighting fixtures hereto fore have been provided. However in connection with such lighting fixtures there always is a need for increased reflectivity from the reflective portions of the lighting fixture. In addition, there is a further requirement to obtain better control over the direction of the light emitted from the lighting fixture. Therefore there is a need for a new and improved lighting fixture which is more efficient and one which emits more light rays at high angles.SUMMARY OF THE INVENTION AND OBJECTSThe lighting fixture consists of a housing which has an open side. A lamp is mounted in the housing and produces light rays through the open side of the housing. The housing carries an internal reflecting surface for reflecting light rays from the lamp through the open side. The internal reflecting surface includes Fresnel type portions for reflecting light rays at higher angles through the open side. High reflecting coatings are provided on the Fresnel portions to increase the efficiency of the lighting fixture. In certain applications a glass enclosure is provided to cover the open side of the housing. To also increase the efficiency, anti-reflection coatings are provided on both surfaces of the glass enclosure.In general, it is an object of the present invention to provide a lighting fixture in which increased efficiency is obtained by increasing the reflectivity from reflective portions of the lighting fixture.Another object of the invention is to provide a lighting fixture of the above character which is provided with Fresnel type reflecting surfaces for increasing the amount of light which is emitted from the fixture at high angles.Another object of the invention is to provide a lighting fixture of the above character in which it is possible to direct the rays in any desired direction from the light fixture without depending on the overall surface configuration of the reflecting surface.Another object of the invention is to provide a lighting fixture of the above character in which the light emitted at high angles directly from the lamp is increased.Another object of the invention is to provide a lighting fixture of the above character in which it is possible to reduce the profile of the lighting fixture.Another object of the invention is to provide a lighting fixture of the above character which has an increased coefficient of utilization.Additional objects and features of the invention will appear from the following description in which the preferred embodiment are set forth in detail in conjunction with the accompanying drawings.

公开(公告)号：US4575788A

公开(公告)日：1986-03-11

申请号：US605428

申请日：1984-04-30

申请人： Ian Lewin

发明人： Ian Lewin

IPC分类号： F21V7/09 ,  F21V7/12

CPC分类号： F21V7/09

摘要： A luminaire for use with HID lightbulbs includes a housing having four primary identical compound curve reflector sections oriented with two sections on each side of the lamp to cause major projections of the light emanating from the luminaire diagonally of the longitudinal axis of the lamp in a horizontal plane to create a square or rectangular distribution of light on the surface to be illuminated. Auxiliary reflector sections are placed at the ends of the light bulb and interconnect the main reflector sections to create an increase in the light projected along the lamp axis to compensate for the reduction in inherent lamp intensity along its axis.

摘要翻译： 与HID灯泡一起使用的灯具包括具有四个主要相同的复合曲线反射器部分的壳体，该部分在灯的每一侧上具有两个部分，以在灯的纵向轴线上沿着水平轴线对角线发出的光在水平方向上发生 平面以在要照明的表面上产生正方形或矩形的光分布。 辅助反射器部分放置在灯泡的端部并且互连主反射器部分，以产生沿着灯轴投影的光的增加，以补偿沿其轴线的固有灯强度的降低。

公开(公告)号：US4388675A

公开(公告)日：1983-06-14

申请号：US216241

申请日：1980-12-15

申请人： Ian Lewin

发明人： Ian Lewin

IPC分类号： F21V7/00 ,  F21V7/05 ,  F21S3/00

CPC分类号： F21V7/05 ,  F21V7/0008 ,  F21V7/005 ,  F21Y2103/00 ,  F21Y2113/00

摘要： An indirect multiple bulb fluorescent light fixture has an elongated rectangular housing with inverted V-shaped reflector members located beneath each of the bulbs and with an additional inverted V-shaped reflector member located between each pair of bulbs in the fixture. All of the interior surfaces of the fixture, including the side walls of the rectangular housing for the fixture, have specular surfaces. The angles of the V-shaped reflector members are selected to cause substantially all of the light emanating from the bulbs to be reflected out of the fixture and to minimize light reflected back into the bulbs for dispersing the light emanating from the fixture uniformly on the ceiling above the fixture without requiring translucent covers or other diffusers. This results in a significantly improved efficiency of the fixture over conventional fixtures which rely upon translucent covers to effect the desired light dispersion.

摘要翻译： 间接多灯泡荧光灯具具有细长的矩形壳体，其具有位于每个灯泡下方的倒V形反射器构件，以及位于固定装置中的每对灯泡之间的附加的倒V形反射器构件。 固定装置的所有内表面，包括用于固定装置的矩形壳体的侧壁都具有镜面。 V形反射器构件的角度被选择为使得基本上从灯泡发出的所有光都能够被反射出固定装置，并将反射回灯泡的光减到最小，以将从固定装置发出的光均匀地分散在天花板上 在夹具上方，不需要半透明盖或其他扩散器。 这导致了固定装置相对于依赖于半透明盖以实现期望的光分散的常规固定装置的效率显着提高。

公开(公告)号：US4262326A

公开(公告)日：1981-04-14

申请号：US21067

申请日：1979-03-16

申请人： Ian Lewin

发明人： Ian Lewin

IPC分类号： F21V5/02

CPC分类号： F21V5/02

摘要： A lighting system for providing aesthetic and energy efficient lighting, for building interiors and exterior lighting, includes lighting fixtures including a high intensity discharge lamp and a novel lens. The lens is formed as a dropped square pyramid with four triangular lower panels and four generally vertical side walls. Prisms on the inner and outer faces of the lens produce a higher luminous intensity at an angle of about 30.degree. to 50.degree. than at nadir and project light at higher angles toward the corners of the lens than perpendicular to the sides of the lens, thereby producing a generally square, widespread light distribution pattern. The lens cuts off high angle light (with respect to nadir), thereby reducing glare.

摘要翻译： 用于提供美观和节能照明的照明系统，用于建筑内部和外部照明，包括包括高强度放电灯和新颖透镜的照明装置。 透镜形成为具有四个三角形下面板和四个大致垂直侧壁的下落的正方形金字塔。 在透镜的内表面和外表面上的棱镜产生比在最低点大约30°至50°的角度的更高的发光强度，并且在垂直于透镜的侧面上以更大的角度朝着透镜的角投射光，从而 产生广泛的广泛的配光图案。 镜头切断高角度光（相对于天底），从而减少眩光。

公开(公告)号：US4173778A

公开(公告)日：1979-11-06

申请号：US879734

申请日：1978-02-21

申请人： Carol J. Snavely ,  Ian Lewin ,  Edward A. Small, Jr.

发明人： Carol J. Snavely ,  Ian Lewin ,  Edward A. Small, Jr.

IPC分类号： F21V3/04 ,  F21V7/00

CPC分类号： F21V3/04

摘要： Lighting fixture having a housing with an open side. A lamp is mounted in the housing that is capable of producing light rays which pass through the open side of the housing. A protective covering of glass is carried by the housing and encloses the open side. The protective covering of glass is provided with a surface which has a high angle anti-reflection coating disposed on the surface.

摘要翻译： 具有敞开侧的壳体的灯具。 灯壳安装在外壳内，能够产生穿过外壳开口侧的光线。 玻璃的保护罩由外壳承载并封闭开口侧。 玻璃的保护罩具有设置在表面上的具有高角度防反射涂层的表面。

公开(公告)号：US20120176610A1

公开(公告)日：2012-07-12

申请号：US13004913

申请日：2011-01-12

申请人： Ian Lewin ,  John O'Farrell

发明人： Ian Lewin ,  John O'Farrell

IPC分类号： G01J1/04

CPC分类号： G01J1/02 ,  G01C3/085 ,  G01J1/0219 ,  G01J1/0228 ,  G01J1/0242 ,  G01J1/0266 ,  G01J1/04 ,  G01J1/0411 ,  G01J1/0437 ,  G01J1/0448 ,  G01J1/0466 ,  G02B7/32

摘要： This invention is related to a light measuring apparatus and a method of using the device. It is used to measure various photometric quantities of the light emanating from a distant source of light.

摘要翻译： 本发明涉及一种光测量装置和使用该装置的方法。 它用于测量从远光源发出的光的各种光度数量。

公开(公告)号：US5278737A

公开(公告)日：1994-01-11

申请号：US788789

申请日：1991-11-06

申请人： Ron Luce ,  Mark J. Hastings ,  Robert T. Allen ,  Ian Lewin

发明人： Ron Luce ,  Mark J. Hastings ,  Robert T. Allen ,  Ian Lewin

IPC分类号： F21V7/09 ,  F21S1/02

CPC分类号： F21V7/09

摘要： A lighting unit for illuminating a wall and adjacent ceiling area. The lighting unit includes a primary reflection element having a curved portion and a smoothly coupled planar portion. A light source is positioned within the lighting unit and a diffuser element can be used to obtain a desired illumination distribution.

摘要翻译： 用于照亮墙壁和相邻天花板区域的照明单元。 照明单元包括具有弯曲部分和平滑耦合的平面部分的主反射元件。 光源位于照明单元内，并且漫射元件可用于获得期望的照明分布。

公开(公告)号：US3988609A

公开(公告)日：1976-10-26

申请号：US558436

申请日：1975-03-14

申请人： Ian Lewin

发明人： Ian Lewin

IPC分类号： F21V5/00 ,  F21V5/02

CPC分类号： F21V5/02

摘要： Luminaires equipped with an improved high efficiency, wide light distribution lighting panel provide more favorable ESI values and may be spaced farther apart than conventional ones. The lighting panel includes three bands of conical prismatic elements; these bands are spaced on 5-inch centers from each other and are separated by substantially transparent bands having shallow 15.degree. flutes to soften the lamp images. Outside the bands of conical prisms are bands of lengthwise elevating prisms for increasing the spread of light to the sides of the fixture. Outside the elevating bands are bands of lengthwise depressing prisms. A single panel design provides similar excellent optical characteristics for either a two-lamp or three-lamp troffer.

摘要翻译： 配备改进的高效率，宽配光照明面板的灯具提供更好的ESI值，并且可以比常规隔离更远。 照明面板包括三个圆锥形棱镜元件; 这些带在5英寸的中心彼此间隔开，并且具有浅的15°的凹槽的基本上透明的带分离以软化灯图像。 在圆锥形棱镜的带外是长度方向的棱镜带，用于增加光到固定装置的侧面的扩散。 升降带外是长按方向的棱镜。 单面板设计为两灯或三灯灯管提供了类似的优异光学特性。

公开(公告)号：US5185637A

公开(公告)日：1993-02-09

申请号：US728542

申请日：1991-07-11

申请人： Ian Lewin ,  Ladd Howell

发明人： Ian Lewin ,  Ladd Howell

IPC分类号： G01J1/02 ,  G01J1/04 ,  G01J1/42 ,  G08G1/097

CPC分类号： G01J1/04 ,  G01J1/4228 ,  G08G1/097 ,  G01J1/0242 ,  G01J1/0271 ,  G01J1/0488 ,  G01J2001/0257

摘要： A portable traffic signal photometer is capable of rapidly and effectively measuring the intensity of light emanating from a traffic signal light. The photometer includes a housing member with a circular front opening for engagement with the lens of a traffic signal light. The photometer is pressed against the lens, and the light emanating from the traffic signal light is directed through an optical filter located inside the housing, which permits light from the traffic signal light emanating at a predetermined downward angle to pass through it. The light from the filter is directed onto a light-sensitive device, which produces an output signal proportional to the intensity of the light emitted by the traffic signal lens. Additional light-responsive photocells are provided to produce signals indicative of the respective color of the traffic signal light being measured by the photometer, and the composite of the color and the light intensity is used to produce a display which permits the user to determine whether the traffic signal light is properly operating within its designed specifications.

摘要翻译： 便携式交通信号光度计能够快速有效地测量从交通信号灯发出的光的强度。 光度计包括具有用于与交通信号灯的透镜接合的圆形前开口的壳体构件。 光度计被压在透镜上，并且从交通信号灯发出的光被引导通过位于壳体内部的滤光器，这使得来自以预定向下的角度发出的交通信号光的光通过它。 来自滤光器的光被引导到感光装置上，其产生与交通信号透镜发射的光的强度成比例的输出信号。 提供附加的光响应光电池以产生指示由光度计测量的交通信号光的相应颜色的信号，并且使用颜色和光强度的合成来产生显示，其允许用户确定是否 交通信号灯在其设计规格内正常运行。

公开(公告)号：US4703405A

公开(公告)日：1987-10-27

申请号：US886650

申请日：1986-07-17

申请人： Ian Lewin

发明人： Ian Lewin

IPC分类号： F21V5/00 ,  F21V9/00

CPC分类号： F21V5/00 ,  F21V5/02 ,  F21V5/04 ,  F21V7/0091 ,  F21Y2103/00 ,  F21Y2113/00

摘要： A refractive lens member for use with a luminaire is constructed to minimize high angle glare. The grid comprises a plurality of lenses which are interconnected by a rib structure to form a pattern of lenses in a network grid, with the lenses all lying substantially in the same plane. Each individual lens has a flat circular light incident surface and each lens has a substantially convex, spherical section light emergent surface. The rib structure is made of the same material as the lenses and may be integrally formed with the lenses to form the network grid. The rib structure is constructed to cooperate with the lenses to which prevent light at angles outside a pre-established range arrives on the light incident side surfaces from exiting from the light emergent surfaces of said lenses.

摘要翻译： 用于照明设备的折射透镜构件被构造成使高角度的眩光最小化。 网格包括多个透镜，其通过肋结构互连以在网格中形成透镜图案，其中透镜全部位于相同的平面中。 每个单独的透镜具有平坦的圆形光入射表面，并且每个透镜具有基本上凸的球形部分的光出射表面。 肋结构由与透镜相同的材料制成，并且可以与透镜整体形成以形成网格。 肋结构构造成与透镜配合，防止在预定范围之外的角度的光到达光入射侧表面，以从所述透镜的光出射表面离开。