Patents by Inventor Albert Nagler

Albert Nagler 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: 10067334
    Abstract: An optical magnifier suitable for viewing microdisplay panels and other optical fields and providing a wide field of view with minimal aberrations across the field over a large pupil with long eye-relief. The magnifier comprises six lens elements formed without the use of expensive very high dispersion glass. The lens surfaces are spherical and/or flat thereby simplifying lens fabrication. A similar magnifier with fewer lens elements configured to view a concave image surface is also disclosed.
    Type: Grant
    Filed: April 27, 2016
    Date of Patent: September 4, 2018
    Assignee: Tele Vue Optics, Inc.
    Inventor: Albert Nagler
  • Patent number: 9904032
    Abstract: An optical macro adaptor assembly comprising two or more lens components arranged successively along the optical axis thereof, configured to be mounted in front of the objective lens of a telescope, and acting to reduce the minimum focus distance of the telescope to permit the telescope to be used in environments requiring a close focus. The optical macro assembly can be a Galilean-type optical system of approximately unit magnification with adjustable spacing between the lens elements to allow for focusing.
    Type: Grant
    Filed: November 11, 2015
    Date of Patent: February 27, 2018
    Assignee: TELE VUE OPTICS, INC.
    Inventor: Albert Nagler
  • Publication number: 20170315343
    Abstract: An optical magnifier suitable for viewing microdisplay panels and other optical fields and providing a wide field of view with minimal aberrations across the field over a large pupil with long eye-relief. The magnifier comprises six lens elements formed without the use of expensive very high dispersion glass and where the lens surfaces are spherical and/or flat. More specifically, from an eye side to object side, the magnifier has a plano-convex lens having a convex eye side surface, a negative meniscus lens with a concave surface on the eye side, a doublet having a concave eye side surface, an internal surface concave from the object side, and convex surface on the object side, a bi-convex lens, a doublet with a convex eye side surface, an internal surface convex from the object side and a flat object side surface, and a bi-concave lens. A magnifier with fewer lens elements configured to view a concave image surface is also disclosed.
    Type: Application
    Filed: April 27, 2016
    Publication date: November 2, 2017
    Inventor: Albert Nagler
  • Publication number: 20170131517
    Abstract: An optical macro adaptor assembly comprising two or more lens components arranged successively along the optical axis thereof, configured to be mounted in front of the objective lens of a telescope, and acting to reduce the minimum focus distance of the telescope to permit the telescope to be used in environments requiring a close focus. The optical macro assembly can be a Galilean-type optical system of approximately unit magnification with adjustable spacing between the lens elements to allow for focusing.
    Type: Application
    Filed: November 11, 2015
    Publication date: May 11, 2017
    Inventor: Albert Nagler
  • Patent number: 5563586
    Abstract: An apparatus or system for limiting access to control of electrically operated equipment. In order to access control of the equipment, i.e., to activate or deactivate the equipment, an operator must enter an access code for example by working a predetermined number of switches or code. An additional feature of the system includes a dwell time function to allow access to control the equipment for a limited time after deactivation.
    Type: Grant
    Filed: July 29, 1994
    Date of Patent: October 8, 1996
    Assignee: Ambitech Industries, Inc.
    Inventors: Matthew C. Baum, Albert Nagler, Edmund E. Sherman
  • Patent number: 4749271
    Abstract: A finder or sighting scope for use with an astronomical telescope, the finder scope having a target member or reticle located at the common focus of the scope objective and the eyepiece. The target member or reticle may be seen as a magnified telescope view when viewed through the eyepiece and as a target or star image against the backdrop of the sky as viewed by a naked eye, the target or star image being projected into the viewer's line of sight by the objective and a mirror and beamsplitter.
    Type: Grant
    Filed: November 10, 1986
    Date of Patent: June 7, 1988
    Inventor: Albert Nagler
  • Patent number: 4747675
    Abstract: Ultra wide-angle eyepieces with relatively long focal lengths and minimal spherical aberration of the exit pupil and field curvature. The eyepieces use six elements in a positive power lens group and two elements in a negative power lens group.
    Type: Grant
    Filed: June 1, 1987
    Date of Patent: May 31, 1988
    Inventor: Albert Nagler
  • Patent number: 4525035
    Abstract: A wide angle eyepiece having reduced astigmatism at the edge of the field and comprising a doublet, a singlet, a singlet, and a doublet, wherein the doublets have negative power.
    Type: Grant
    Filed: January 5, 1984
    Date of Patent: June 25, 1985
    Inventor: Albert Nagler
  • Patent number: 4482217
    Abstract: A Plossl type eyepiece for astronomical instruments in which the external flint elements of the symmetrical achromatic doublets are double concave elements.
    Type: Grant
    Filed: February 18, 1983
    Date of Patent: November 13, 1984
    Inventor: Albert Nagler
  • Patent number: 4400065
    Abstract: A multi-purpose telescope objective having a Petzval type lens configuration and including an iris diaphragm.
    Type: Grant
    Filed: May 18, 1981
    Date of Patent: August 23, 1983
    Inventor: Albert Nagler
  • Patent number: 4286844
    Abstract: A wide angle eyepiece having a 90.degree. field of view, a field curvature of at least 15.06 F, and minimal astigmatism.
    Type: Grant
    Filed: November 7, 1979
    Date of Patent: September 1, 1981
    Inventor: Albert Nagler