Patents by Inventor Lorenzo Occhi
Lorenzo Occhi 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).
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Patent number: 8427731Abstract: In accordance with the invention, a display apparatus comprising a light source is provided, said light source comprising at least one superluminescent light emitting diode (SLED), the apparatus further comprising at least one light modulating device arranged in a beam path of a light beam emitted by said light source and operable to emit influenced light upon incidence of said light beam, the light modulating device being operatively connected to an electronic control, the display apparatus further comprising a projection optics arranged in a beam path of said influenced light.Type: GrantFiled: November 2, 2009Date of Patent: April 23, 2013Assignee: Exalos AGInventors: Valerio Laino, Lorenzo Occhi, Christian Velez
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Patent number: 8022389Abstract: In accordance with the invention, a light source for display and/or illumination is provided, the light source comprising a heterostructure including semiconductor layers, the heterostructure forming a waveguide between a first end and a second end, the heterostructure comprising a plurality of layers and comprising an optically active zone formed by the plurality of layers, the optically active zone capable of emitting light guided by said waveguide, at least two different radiative transitions being excitable in the optically active an electrical current between a p-side electrode and an n-side electrode, transition energies of said at least two different radiative transitions corresponding to wavelengths in the visible part of the optical spectrum, the light source further comprising means for preventing reflections of light from the waveguide by at least one of said first and second end back into the waveguide, thereby causing the light source to comprise a superluminescent light emitting diode.Type: GrantFiled: November 2, 2009Date of Patent: September 20, 2011Assignee: Exalos AGInventors: Lorenzo Occhi, Valerio Laino, Christian Velez
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Publication number: 20100193769Abstract: In accordance with the invention, a light source for display and/or illumination is provided, the light source comprising a heterostructure including semiconductor layers, the heterostructure forming a waveguide between a first end and a second end, the heterostructure comprising a plurality of layers and comprising an optically active zone formed by the plurality of layers, the optically active zone capable of emitting light guided by said waveguide, at least two different radiative transitions being excitable in the optically active an electrical current between a p-side electrode and an n-side electrode, transition energies of said at least two different radiative transitions corresponding to wavelengths in the visible part of the optical spectrum, the light source further comprising means for preventing reflections of light from the waveguide by at least one of said first and second end back into the waveguide, thereby causing the light source to comprise a superluminescent light emitting diode.Type: ApplicationFiled: November 2, 2009Publication date: August 5, 2010Applicant: EXALOS AGInventors: Lorenzo Occhi, Valerio Laino, Christian Velez
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Publication number: 20100195184Abstract: In accordance with the invention, a display apparatus comprising a light source is provided, said light source comprising at least one superluminescent light emitting diode (SLED), the apparatus further comprising at least one light modulating device arranged in a beam path of a light beam emitted by said light source and operable to emit influenced light upon incidence of said light beam, the light modulating device being operatively connected to an electronic control, the display apparatus further comprising a projection optics arranged in a beam path of said influenced light.Type: ApplicationFiled: November 2, 2009Publication date: August 5, 2010Applicant: EXALOS AGInventors: Valerio Laino, Lorenzo Occhi, Christian Vélez
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Patent number: 7600893Abstract: In accordance with the invention, a display apparatus including a light source is provided, the light source having at least one superluminescent light emitting diode (SLED), the apparatus further having at least one light modulating device arranged in a beam path of a light beam emitted by the light source and operable to emit influenced light upon incidence of the light beam, the light modulating device being operatively connected to an electronic control, the display apparatus further having a projection optics arranged in a beam path of the influenced light.Type: GrantFiled: May 1, 2007Date of Patent: October 13, 2009Assignee: Exalos AGInventors: Valerio Laino, Lorenzo Occhi, Christian Velez
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Publication number: 20080272379Abstract: In accordance with the invention, a display apparatus including a light source is provided, the light source having at least one superluminescent light emitting diode (SLED), the apparatus further having at least one light modulating device arranged in a beam path of a light beam emitted by the light source and operable to emit influenced light upon incidence of the light beam, the light modulating device being operatively connected to an electronic control, the display apparatus further having a projection optics arranged in a beam path of the influenced light.Type: ApplicationFiled: May 1, 2007Publication date: November 6, 2008Applicant: EXALOS AGInventors: Valerio Laino, Lorenzo Occhi, Christian Velez
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Patent number: 7348583Abstract: An apparatus for producing wavelength stabilized electromagnetic radiation is provided, the apparatus comprising a broadband semiconductor radiation source configured to produce broadband electromagnetic radiation having a mean wavelength ?m, and a bandpass radiation filter, an input of said bandpass radiation filter being in optical connection to an output of said radiation source, and a common temperature stabilizer being in thermal contact with both, the radiation source and the radiation filter. In a preferred embodiment, the radiation source—which is, for example, a superluminescent light emitting diode—and the bandpass radiation filter are provided on a common mount which is in contact with a thermoelectric cooler acting, together with temperature sensing means and control means, as temperature stabilizer.Type: GrantFiled: November 2, 2005Date of Patent: March 25, 2008Assignee: Exalos AGInventors: Christian Vélez, Lorenzo Occhi, Christopher Armistead
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Publication number: 20070096042Abstract: An apparatus for producing wavelength stabilized electromagnetic radiation is provided, the apparatus comprising a broadband semiconductor radiation source configured to produce broadband electromagnetic radiation having a mean wavelength ?m, and a bandpass radiation filter, an input of said bandpass radiation filter being in optical connection to an output of said radiation source, and a common temperature stabilizer being in thermal contact with both, the radiation source and the radiation filter. In a preferred embodiment, the radiation source—which is, for example, a superluminescent light emitting diode—and the bandpass radiation filter are provided on a common mount which is in contact with a thermoelectric cooler acting, together with temperature sensing means and control means, as temperature stabilizer.Type: ApplicationFiled: November 2, 2005Publication date: May 3, 2007Applicant: EXALOS AGInventors: Christian Velez, Lorenzo Occhi, Christopher Armistead
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Patent number: 7019325Abstract: The invention concerns a superluminescent light emitting diode (SLED) comprising a semiconductor heterostructure forming a PN junction and a waveguide. The semiconductor heterostructure includes a gain region with a contact means for biasing the PN junction so as to produce light emission including stimulated emission from an active zone of the gain region, and in the active zone a plurality of quantum dot layers, each quantum dot layer made up of a plurality of quantum dots and a plurality of adjoining layers, each adjoining layer adjacent to one of said quantum dot layers. The material composition or a deposition parameter of at least two adjoining layers is different. This ensures an enhanced emission spectral width.Type: GrantFiled: June 16, 2004Date of Patent: March 28, 2006Assignee: Exalos AGInventors: Lianhe Li, Andrea Fiore, Lorenzo Occhi, Christian Velez
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Publication number: 20050279989Abstract: The invention concerns a superluminescent light emitting diode (SLED) comprising a semiconductor heterostructure forming a PN junction and a waveguide. The semiconductor heterostructure includes a gain region with a contact means for biasing the PN junction so as to produce light emission including stimulated emission from an active zone of the gain region, and in the active zone a plurality of quantum dot layers, each quantum dot layer made up of a plurality of quantum dots and a plurality of adjoining layers, each adjoining layer adjacent to one of said quantum dot layers. The material composition or a deposition parameter of at least two adjoining layers is different. This ensures an enhanced emission spectral width.Type: ApplicationFiled: June 16, 2004Publication date: December 22, 2005Applicant: Exalos AGInventors: Lianhe Li, Andrea Fiore, Lorenzo Occhi, Christian Velez