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A forehead support apparatus for resting a standing users forehead against a wall above a bathroom commode or urinal or beneath a showerhead.
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| Number | Title | Issue Date |
| 8120859 | Viewing optical system and imaging apparatus using the same The invention provides a viewing optical system positioned between a viewing plane as a virtual plane and an eye point. The viewing optical system comprises, in order from the viewing plane side, a cemented lens and a positive lens component, and satisfies the follo... | 02/21/2012 |
| 7940466 | Viewing optical system and imaging apparatus using the same The invention provides a viewing optical system positioned between a viewing plane as a virtual plane and an eye point. The viewing optical system comprises, in order from the viewing plane side, a cemented lens in which at least one negative lens and at least one p... | 05/10/2011 |
| 7593162 | Image pickup system The invention relates to an image pickup system comprising an electronic view finder suitable for achieving compactness and having a sufficient viewing angle of field and satisfactory optical performance. The image pickup system comprises an image pickup device, an ... | 09/22/2009 |
| 7529031 | Image pickup system The invention relates to an image pickup system comprising an electronic view finder suitable for achieving compactness and having a sufficient viewing angle of field and satisfactory optical performance. The image pickup system comprises an image pickup device, an ... | 05/05/2009 |
| RE40563 | Image pickup system The invention relates to an image pickup system comprising an electronic view finder suitable for achieving compactness and having a sufficient viewing angle of field and satisfactory optical performance. The image pickup system comprises an image pickup device, an ... | 11/04/2008 |
| 7369319 | Optical system for telescope An optical system (1) of telescope includes an objective lens (10) for collecting incident light and transmitting the incident light along a light path, and an imaging lens group (20) disposed on the light path that makes the optical system focu... | 05/06/2008 |
| 7301702 | Diffractive optical element and optical system including the same A diffractive optical element includes a plurality of diffraction gratings. A diffraction grating within the plurality of diffraction gratings includes a plurality of grating parts having a curved grating surface and grating tips which connect to define a curved env... | 11/27/2007 |
| 7283309 | Wide-range, wide-angle, rotatable compound zoom A compact zoom lens system providing a wide-range, ultra-wide angle optionally rotatable compound zoom is disclosed. In one embodiment, the optical design is comprised of an NPP kernel followed by a PP relay with four independently moving groups, two on each side of... | 10/16/2007 |
| 7236698 | Imaging system The invention relates to an imaging system equipped with an electronic viewfinder suitable for compactness and having a sufficient angle of viewing field and satisfactory optical performance, especially the ability to prevent harmful light. The imaging system compri... | 06/26/2007 |
| 7215493 | Imaging system with a lens having increased light collection efficiency and a deblurring equalizer In one form, an imaging system comprises an imager that forms an image of an object in a field of view, a rotationally symmetric lens assembly disposed between the imager and the object, and an equalizer. The rotationally symmetric lens assembly provides increased c... | 05/08/2007 |
| 7180675 | Viewfinder and image pickup apparatus A viewfinder of a small size and a small thickness is implemented to achieve a miniaturization and reduction in thickness of an image pickup apparatus. The viewfinder includes an eyepiece system for expanding an image displayed on an image display element so as to b... | 02/20/2007 |
| 7177087 | Compound asperic ocular for riflescope An ocular or eyepiece lens assembly for a riflescope or spotting scope or other types of telescopic optical systems which may include a three element lens assembly comprised of materials of three different refractive indices, at least one of the lens elements compos... | 02/13/2007 |
| 7173089 | Near-net-shape polymerization process and materials suitable for use therewith This invention is directed to a processing approach for the rapid and efficient in-situ polymerization of specially prepared precursor mixtures to achieve near-net-shape production of objects/articles with exact dimensions. The process relies on the use of polymeriz... | 02/06/2007 |
| 7161739 | Optical system, optical device including the same, and optical device designing method The present invention relates to an optical device having a structure that can make the diameter of the emitted Gaussian beam smaller. The optical device is arranged between a first and second positions, and comprises a first and second optical systems separated wit... | 01/09/2007 |
| 7106491 | Split beam micromirror A system and method of providing a micromirror pixel 400 that is highly resistant to bright failure states. The micromirror 400 uses an asymmetric yoke 402 to ensure the mirror is only attracted to the address electrode in one rotation direction... | 09/12/2006 |
| 7102827 | Eyepiece lens The object of the present invention is to provide an eyepiece lens having a large pupil diameter of 10 mm or more, securing higher magnification, equipped with a high quality diopter adjustment function at low cost. The eyepiece lens includes, in order from an eye p... | 09/05/2006 |
| 7061684 | Finder optical system and camera provided with the same An observation optical system of the present invention comprises an image erect optical system and an eyepiece optical system for observing an object image. The eyepiece optical system comprises a positive single lens having double convex surfaces and a negative men... | 06/13/2006 |
| 7028595 | Precision double-sided aspheric element A precision optical element is described, such as is used in thermal imaging systems in the infra-red, manufactured by means of single point machining, with both of its surfaces having an aspheric form, with or without the addition of a diffractive optics pattern. T... | 04/18/2006 |
| 7012731 | Packaged micromirror array for a projection display In order to minimize light diffraction along the direction of switching and more particularly light diffraction into the acceptance cone of the collection optics, in the present invention, micromirrors are provided which are not rectangular. Also, in order to minimi... | 03/14/2006 |
| 6980365 | Diffractive lens optical design An optical system for use in a head-mounted display is provided which includes a microdisplay (4) and a magnifier (10) for producing a magnified image of the microdisplay for viewing by a human eye. The magnifier (10) includes a diffractive surf... | 12/27/2005 |
| 6958863 | Image pickup system The invention relates to an image pickup system comprising an electronic view finder suitable for achieving compactness and having a sufficient viewing angle of field and satisfactory optical performance. The image pickup system comprises an image pickup device, an ... | 10/25/2005 |
| 6853484 | Relay optical system The relay optical system comprises, in order from the intermediate image position I toward the the exit pupil EXP side, a first unit G1 having a negative refracting power and a second unit G2 having a positive refracting power, wherein the distance fro... | 02/08/2005 |
| 6809875 | Eyepiece optical system An eyepiece optical system is interposed between the positions of an intermediate image and a pupil in a finder and includes, in order from the intermediate-image side, a first lens unit having a negative lens located at the most intermediate-image-side position and... | 10/26/2004 |
| 6785054 | Optical magnifier suitable for use with a microdisplay device An optical magnifier is provided. One general form of one example embodiment includes two lens elements, at least two aspheric surfaces, and at least one diffractive surface. Another general form of another example embodiment includes three lens elements, and at lea... | 08/31/2004 |
| 6724532 | Dual-lens hybrid diffractive/refractive imaging system The present invention discloses a dual-lens hybrid diffractive/refractive imaging system comprising: a first lens including a concave surface and a convex surface; and the second lens including a convex surface and a concave surface. The concave surface of the first... | 04/20/2004 |
| 6724518 | Split beam micromirror A system and method of providing a micromirror pixel 400 that is highly resistant to bright failure states. The micromirror 400 uses an asymmetric yoke 402 to ensure the mirror is only attracted to the address electrode in one rotation direction... | 04/20/2004 |
| 6674583 | Fabrication of unit lenses for compound refractive lenses A compound refractive lens for focusing, collecting, collimating and imaging with x-rays comprising N unit lenses numbered i=1 through N unit lenses substantially aligned along an axis such that i-th lens having a displacement ti orthogonal to ... | 01/06/2004 |
| 6570714 | Precision composite article The invention is directed to a method for making composite articles, including optical lenses, which includes the steps of obtaining a substrate; placing a semi-solid-like polymerizable composition in contact with at least one of the front or back surface... | 05/27/2003 |
| 6529335 | Eyepiece lens system, telescope, binocular, and microscope An eyepiece lens system using an aspherical lens can be formed at a low cost, having an eye relief equivalent to 80% or more of the focal length of the entire eyepiece lens system, with aberrations satisfactorily corrected up to the circumference of the f... | 03/04/2003 |
| 6496308 | Relay optical system The relay optical system comprises, in order from the intermediate image position I toward the the exit pupil EXP side, a first unit G1 having a negative refracting power and a second unit G2 having a positive refracting power, wherein the distance from t... | 12/17/2002 |
| 6493150 | Real image mode variable magnification finder A real image mode variable magnification finder has an objective optical system with positive refracting power, an image erecting optical system, and an ocular optical system with positive refracting power. The objective optical system has a first lens un... | 12/10/2002 |
| 6480338 | Eyepiece optical system and image display apparatus An eyepiece optical system for projecting an enlarged virtual image of a two-dimensional image on an observer's pupil has a first reflective/transmissive surface formed as a flat surface, a second reflective/transmissive surface so shaped as to be concave... | 11/12/2002 |
| 6469836 | Eyepiece An eyepiece comprises, successively from the eye side, a first lens L1, which is a diffractive optical element with a diffractive optical surface on the object side, made of a biconvex lens having a surface with a greater curvature directed ont... | 10/22/2002 |
| 6424468 | Eyepiece lens In order to provide an eyepiece lens which has a sufficiently long eye relief and a high magnification, there is provided an eyepiece lens for observing an image formed by an objective lens through an erect system, at least comprising a first lens group 4... | 07/23/2002 |
| 6330115 | Microscope eyepiece with 10× magnification The invention relates to a microscope eyepiece with theoretically reduced astigmatism in a compensating optical system. The inventive eyepiece has 10× magnification, a sight field (SFZ)ࣘ25 and a Petzval sum (SP) of 0.014ࣘSPࣘ0.021. Said eyepiece com... | 12/11/2001 |
| 6249388 | Eyepiece lens system A negative ocular having a positive eye-side lens element positioned on the side of the user's eye and a positive field lens element positioned on the side of the object whereby an intermediate image formed by an objective lens system is formed between th... | 06/19/2001 |
| 6130785 | Eyepiece lens system There is provided an eyepiece lens system for viewing an image formed by an objective lens system. The eyepiece lens system includes a first refraction lens having a positive power, a second refraction lens having a positive power and at least one diffrac... | 10/10/2000 |
| 6101038 | Infrared audio/video interface for head-mounted display A video interface linking a base station with a remote display, e.g., a head-mounted display, converts input video signals from NTSC or PAL formats into modulated video signals containing repetitive sequences of frame times with embedded audio and control... | 08/08/2000 |
| 6094310 | Eyepiece system having wide visual field An eyepiece system comprising, in order from the object side, a first lens unit having a negative refractive power and a second lens unit having a positive refractive power, and configured to locate an intermediate image formed by an objective lens system... | 07/25/2000 |
| 6057968 | Eyepiece system An eyepiece system comprising a single radial type gradient index lens which has a refractive index varying dependently on distances from an optical axis in a radial direction and a negative power. This eyepiece system is composed of a small number of len... | 05/02/2000 |
