Path Length Patents (Class 359/489.05)
  • Patent number: 10151872
    Abstract: An optical system is disclosed, which comprises a glass light pipe having an input surface for receiving light from a light source and an output surface through which light exits the light pipe, and a polymeric light pipe optically coupled at its input surface to the output surface of the glass light pipe to receive at least a portion of the light exiting the glass light pipe, said polymeric light pipe having a textured output surface. A plurality of microlenses is optically coupled to said textured surface of the polymeric light pipe, and a projection lens is optically coupled to the output surface of the polymeric light pipe to receive light therefrom.
    Type: Grant
    Filed: May 10, 2018
    Date of Patent: December 11, 2018
    Assignee: Fraen Corporation
    Inventors: Marco Angelini, Claudia Bigliati, Robert A. Gobron, Rachel Taranta, Natale Baraldo
  • Patent number: 9995872
    Abstract: An optical system is disclosed, which comprises a glass light pipe having an input surface for receiving light from a light source and an output surface through which light exits the light pipe, and a polymeric light pipe optically coupled at its input surface to the output surface of the glass light pipe to receive at least a portion of the light exiting the glass light pipe, said polymeric light pipe having a textured output surface. A plurality of microlenses is optically coupled to said textured surface of the polymeric light pipe, and a projection lens is optically coupled to the output surface of the polymeric light pipe to receive light therefrom.
    Type: Grant
    Filed: June 17, 2016
    Date of Patent: June 12, 2018
    Assignee: Fraen Corporation
    Inventors: Marco Angelini, Claudia Bigliati, Robert A. Gobron, Rachel Taranta, Natale Baraldo
  • Patent number: 9632413
    Abstract: The invention relates to an illumination system of a microlithographic projection exposure apparatus comprising (a) a plurality of channels, each channel guiding a partial beam and at least one channel comprising at least one defect, and (b) at least one optical element arranged within the at least one channel having the at least one defect, the optical element being adapted to at least partially compensate the at least one defect of the partial beam of the channel.
    Type: Grant
    Filed: August 22, 2014
    Date of Patent: April 25, 2017
    Assignee: Carl Zeiss SMT GmbH
    Inventors: Ingo Saenger, Frank Schlesener
  • Publication number: 20150062701
    Abstract: There is provided a display device including a lens which guides light from a light source to a display surface, and a compensation member, having an inside surface opposite to a lens surface of the lens divided into a plurality of two-dimensional regions, in which a direction of an advance axis or a delay axis is controlled for each of the regions.
    Type: Application
    Filed: August 11, 2014
    Publication date: March 5, 2015
    Applicant: Sony Corporation
    Inventor: Ryoko Horikoshi
  • Patent number: 8755113
    Abstract: An inorganic, dielectric grid polarizer device includes a stack of film layers disposed over a substrate. Each film layer is formed of a material that is both inorganic and dielectric. Adjacent film layers each have different refractive indices. At least one of the film layers is discontinuous to form a form-birefringent layer with an array of parallel ribs having a period less than 400 nm. Another layer, different than the form-birefringent layer, is formed of an optically absorptive material for the ultra-violet spectrum.
    Type: Grant
    Filed: June 22, 2007
    Date of Patent: June 17, 2014
    Assignee: Moxtek, Inc.
    Inventors: Eric Gardner, Bin Wang, Mark Davis, John D. Dredge, Jr.
  • Publication number: 20130329228
    Abstract: A phase-locked delay device, including: an input port configured to receive an input electromagnetic radiation pulse; said input pulse being to be propagated along a propagation direction and having a first linear polarization different from both a first direction, which is orthogonal to the propagation direction, and a second direction, which is orthogonal to the first direction and the propagation direction; an adjustable Babinet-Soleil module optically coupled to said input port, having a first polarization direction parallel to said first direction. The adjustable Babinet-Soleil module is structured to: provide from the input pulse a first pulse polarized along the first direction and a second pulse collinear to said first pulse and polarized along the second direction, and introduce an adjustable group delay between the first pulse and the second pulse ranging from a minim value ?Tm and a maximum value ?TM; the maximum value ?TM being a value greater than 10 fs.
    Type: Application
    Filed: June 7, 2012
    Publication date: December 12, 2013
    Applicants: CONSIGLIO NAZIONALE DELLE RICERCHE, POLITECNICO DI MILANO
    Inventors: Cristian Angelo MANZONI, Daniele BRIDA, Giulio Nicola Felice CERULLO