Patents by Inventor Martin L. Lasker

Martin L. Lasker has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 5363293
    Abstract: An embodiment of the present invention is a luminaire for roughly uniform illumination of a square area without side glare. The luminaire uses a horizontally oriented arc tube lamp. A basket reflector surrounds the arc tube lamp and directs light out in a square pattern. A top aperture in the basket reflector is opposite to the illuminated square area. A bottom aperture, positioned in the basket reflector, permits light from the arc tube lamp to pass out to the illuminated square area. A center reflector is centrally positioned above the top aperture and has bow-tie shaped body and a pair of ends that are orthogonally oriented to the arc tube lamp. A pair of side reflectors with a plurality of faceted reflective surfaces receive light from the arc tube lamp that has been reflected from the center reflector. The side reflectors are positioned at opposite points outside the basket structure and are centered along a line perpendicular to the arc tube lamp.
    Type: Grant
    Filed: April 14, 1994
    Date of Patent: November 8, 1994
    Assignee: USI Lighting, Inc.
    Inventor: Martin L. Lasker
  • Patent number: 4907143
    Abstract: An upper reflector system for a fluorescent troffer utilizing a double tube florescent lamp oriented vertically relative to a downward surface to be lighted. Intersecting lower louvers form a multiplicity of cells through which the fluorescent lamp passes. An upper reflector system directs light originating with the lamp outwardly from the fixture in multiple directions.
    Type: Grant
    Filed: November 18, 1988
    Date of Patent: March 6, 1990
    Assignee: Columbia Lighting, Inc.
    Inventor: Martin L. Lasker
  • Patent number: 4760507
    Abstract: A lighting fixture utilizing an electrical lamp connected to an electrical power source. The fixture entails a base member which is rotatably mounted to an object. A body is also provided which supports the electrical lamp. The body includes a first end portion and a second end portion, the first end portion of which rotates in relation to the body. A swivel member supported by the body rotates the lamp which is held to the swivel member.
    Type: Grant
    Filed: July 6, 1987
    Date of Patent: July 26, 1988
    Assignee: Prescolite, Inc.
    Inventors: Martin L. Lasker, Joel S. Cohen
  • Patent number: 4713737
    Abstract: A lighting fixture mechanically connected to an object utilizing a lamp supporting body. The lamp supporting body is rotated about an axis and includes a swivel member having a swivel arm which moves over the exterior of the lamp supporting body. A boss mechanically connected to the object extends outwardly from the swivel arm and is supported for movement with the swivel arm. A lamp is also supported to the lamp supporting body and is electrically connected to a source of electrical power.
    Type: Grant
    Filed: April 7, 1986
    Date of Patent: December 15, 1987
    Assignee: Prescolite Inc.
    Inventors: Martin L. Lasker, Joel S. Cohen
  • Patent number: 4701832
    Abstract: A luminaire utilizing a source of light which is reflected outwardly from the luminaire by a first and second reflector in side-by-side configuration. The second reflector is also positioned to one side or in surrounding relationship to the source of light. The light from the first reflector is adjusted to reinforce light coming from the second reflector in a predetermined direction.
    Type: Grant
    Filed: December 23, 1986
    Date of Patent: October 20, 1987
    Assignee: Prescolite, Inc.
    Inventor: Martin L. Lasker
  • Patent number: 4651260
    Abstract: A roadway luminaire utilizing a source of light which is reflected outwardly from the luminaire by a first and second reflector in side-by-side configuratuion. The second reflector is also positioned to one side of the source of light. The light from the first reflector is adjusted to reinforce light coming from the second reflector in a predetermined direction.
    Type: Grant
    Filed: October 24, 1984
    Date of Patent: March 17, 1987
    Assignee: Prescolite Inc.
    Inventor: Martin L. Lasker
  • Patent number: 4337507
    Abstract: In a lighting fixture, a light source is partially surrounded by a reflector system mounted in a housing to direct light from the light source out through an aperture in the front of the housing. The reflector is cylindrically and parabolically shaped to provide a cut-off above a selected vertical angle and to provide a decreasing intensity with decreasing vertical angles from a maximum intensity to effect uniform distribution. A lens is provided in the aperture to achieve uniform distribution through a wide horizontal angle. The reflector system and the light source are pivotable within the housing about a fixed horizontal axis to adjust the vertical cut-off angle and the angle of the maximum intensity. A fixed reflector is mounted near the top of the aperture on the front wall of the housing to get more sideways distribution of the light when the light source is pivoted toward the back of the housing.
    Type: Grant
    Filed: June 12, 1979
    Date of Patent: June 29, 1982
    Assignee: The Marley-Wylain Company
    Inventor: Martin L. Lasker
  • Patent number: 4096555
    Abstract: In a lighting fixture, glare-free uniform illumination is achieved by means of a plurality of nested generally frusto-conical reflectors surrounding the light source of the fixture. The reflectors are shaped and positioned relative to one another and to the light source to concentrate light in the range of 65 to 71 degrees from downward vertical and to cause the intensity of the light to progressively decrease as the angle from downward vertical decreases from 65 degrees toward zero. The projected light from the fixture is concentrated in the 65 to 71 degree range from downward vertical in part by light radiated from the source at near horizontal and higher angles being doubly reflected between the frusto-conical reflectors and then projected in the high angle range. The reflectors are positioned relative to one another, to the light source and to baffles, to cut off any light from being projected at an angle from downward vertical greater than 75 degrees.
    Type: Grant
    Filed: October 28, 1976
    Date of Patent: June 20, 1978
    Assignee: Wylain, Inc.
    Inventor: Martin L. Lasker
  • Patent number: D293940
    Type: Grant
    Filed: October 8, 1985
    Date of Patent: January 26, 1988
    Assignee: Prescolite, Inc.
    Inventor: Martin L. Lasker
  • Patent number: D294179
    Type: Grant
    Filed: October 8, 1985
    Date of Patent: February 9, 1988
    Assignee: Prescolite, Inc.
    Inventor: Martin L. Lasker
  • Patent number: D298314
    Type: Grant
    Filed: November 4, 1985
    Date of Patent: November 1, 1988
    Assignee: Prescolite, Inc.
    Inventors: Martin L. Lasker, Richard C. Counts, James E. Palmer
  • Patent number: D303719
    Type: Grant
    Filed: April 10, 1986
    Date of Patent: September 26, 1989
    Assignee: Prescolite Inc.
    Inventors: Martin L. Lasker, Joel S. Cohen