| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 359489000 | Polarization (direction or magnitude) varies over surface of the medium (e.g., vectograph) | 11 |
| 20080310021 | Opposed Window Pairing for Limited Viewing There Through - A combination includes a first window configured to polarize light passing there through in a first plane; and a second window configured to polarize light passing there through in a second plane, the second plane being generally orthogonal to the first plane. The first window and the second window are disposed in opposing dispositions such that a line-of-sight extends between and to each window. Accordingly, a person's view through both windows is substantially blocked, but an individual view by a person through each window is not blocked. The opposed windows may form part of opposing sides of buildings or houses, or opposing sides of a container, such as an aquarium. The opposed windows further may form part of opposing rooms, such as offices or conference rooms. | 12-18-2008 |
| 20090122402 | Achromatic Converter Of A Spatial Distribution Of Polarization Of Light - An achromatic converter of spatial distribution of polarization from a first to a second pre-defined distribution of polarization is described. The converter comprises a plurality of photo-aligned quarter-wave or half-wave liquid crystal polymer layers, wherein the patterns of alignment of the layers are correlated with each other so as to make polarization conversion achromatic. Achromatic polarization vortices can be formed. The polarization conversion efficiencies over 97% have been demonstrated over most of the visible spectrum of light. The polarization converters can be used in imaging, photolithography, optical tweezers, micromachining, and other applications. | 05-14-2009 |
| 20090174941 | OPTICAL DEVICE - There is provided an optical device including a plurality of first phasors having substantially the same phase delaying axis as each other; and a plurality of second phasors having substantially the same phase delaying axis as each other in a direction different from that of the first phasors and providing a phase difference substantially the same as that provided by the first phasors, in which the plurality of first phasors and the plurality of second phasors are arranged on substantially the same face, a density of the first phasors is substantially the same as a density of the second phasors, and a spatial distribution of the density of the first phasors and a spatial distribution of the density of the second phasors are substantially uniform. | 07-09-2009 |
| 20090190217 | Combined retardation optical device - A combined retardation optical device includes a first retardation optical plate and a second retardation optical plate. The second retardation optical plate contains a flat portion and a multi-step portion. This multi-step portion has several step-like flat surfaces with predetermined heights. The flat portion contacts with the first retardation optical plate. Both the first retardation optical device and the second retardation optical plate are made by birefringent materials. This invention is easy to switch to different retardation condition for observation. Plus, there is no need to adjust or replace any element. | 07-30-2009 |
| 20090231703 | Method of Fixing Polarization-Reversed Region Formed in Ferroelectric Single Crystal and Optical Element Using the Same - A method of fixing polarization-reversed regions formed in a ferroelectric single crystal with ease and an optical element containing such a ferroelectric single crystal are provided. The method of fixing the polarization-reversed regions formed in a ferroelectric single crystal is characterized by including a step of irradiating an ion beam or a neutral beam on the ferroelectric single crystal where polarization-reversed regions are formed. An optical element containing such a ferroelectric single crystal is characterized by being manufactured by a method including such a step. | 09-17-2009 |
| 20090284835 | SCANNING MICROSCOPY USING INHOMOGENEOUS POLARIZATION - Apparatus for imaging a surface, including an acousto-optic (AO) system. The AO system includes an AO element having a radiation input surface and a radiation output surface. The element is configured to receive radio-frequency (RF) pulses and a radiation input at the radiation input surface and to generate traveling beams from the radiation output surface. The AO system also includes an inhomogeneous polarization generator, positioned relative to the AO element so that the AO system outputs traveling inhomogeneously polarized beams. The apparatus includes objective optics which are configured to focus the inhomogeneously polarized beams onto the surface so as to form respective traveling spots thereon; collection optics, which are configured to collect scattered radiation from the traveling spots and to focus the scattered radiation to form respective image spots; and a detector which is arranged to receive the respective image spots and to generate a signal in response thereto. | 11-19-2009 |
| 20090316263 | METHODS AND APPARATUS FOR PRODUCING RADIAL POLARIZED LIGHT - Methods and apparatus for converting linear polarized light into radial-polarized light are disclosed. The polarization is accomplished through a radial polarization generator containing multiple layers of polarizing film, or polarization converters, for converting the beam of light to a different orientation. Using the radial polarization generator, a quasi radial-polarized beam of light can be obtained quickly and easily by simply aligning the light at the center of the polarization generator. True radial-polarization can be obtained by passing the laser through a spatial filter. With such a radial polarization generator, a large frequency range of light may be converted from a linear orientation to a radial orientation. | 12-24-2009 |
| 20100103520 | OPTICAL SHEET, DISPLAY APPARATUS AND FABRICATING METHOD THEREOF - An optical sheet suitable for linear polarized light to pass through is provided. The optical sheet includes a substrate and a retardation film. The retardation film herein is located on the substrate and has a plurality of optical axes with different extending directions. The linear polarized light after passing through the retardation film is converted into a plurality of linear polarized light with different polarization directions, wherein the retardation film substantially has a phase retardation of λ/2 at anywhere of the area where the linear polarized light passes through and λ is the wavelength of the linear polarized light. Besides, the present invention also provides a display apparatus, a fabricating method of an optical sheet and a fabricating method of a display apparatus. | 04-29-2010 |
| 20100188748 | POLARIZATION COMPENSATION OPTICAL SYSTEM AND POLARIZATION COMPENSATION OPTICAL ELEMENT USED THEREIN - A polarization compensation optical system includes: a light source | 07-29-2010 |
| 20100290116 | PHASE COMPENSATOR FOR COUPLING AN ELECTROMAGNETIC WAVE INTO AN OPTICAL CONDENSER - An apparatus comprising a phase compensator and an optical condenser in communication with the phase compensator. The phase compensator provides for phase shifting a portion of an electromagnetic wave. The optical condenser is shaped to direct the electromagnetic wave to a focal region of the optical condenser. | 11-18-2010 |
| 20110019276 | METHOD OF PRODUCING A PATTERNED BIREFRINGENT PRODUCT - A method of producing a patterned birefringent product, having at least steps (I) to (III) in this order:
| 01-27-2011 |
