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"I watched his countenance closely, to see if he was not deranged ... and I was assured by other senators after he left the room that they had no confidence in it."
U.S. Senator Smith of Indiana ; After seeing Samuel Morse demonstrate the telegraph.
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| Number | Title | Issue Date |
| 7729061 | Imaging system having anamorphic magnification A method and imaging system (10) is disclosed having a lens assembly (40) adapted for reading a target object (18) comprising an anamorphic lens assembly with first (L3) and second (L4) toroidal lenses adapted for positioning betwe... | 06/01/2010 |
| 7301615 | Optical apparatus, method of determining position of optical element in optical system, and device manufacturing method An optical apparatus which includes an image forming optical system having a movable optical element, and a driving mechanism configured to move the optical element. The apparatus includes a first block which measures a wavefront aberration of the optical system. A ... | 11/27/2007 |
| 7270447 | Uniform luminance and color mixing lens for LED device A lens for an LED having a lens body providing total internal reflection of light emitted by the LED from a first emission point disposed proximate a first junction of the lens body and centerplane. The lens includes an arcuate light-diffusing edge for diffusing lig... | 09/18/2007 |
| 7230692 | Optical apparatus, method of determining position of optical element in optical system, and device manufacturing method An optical apparatus including an image forming optical system having a movable optical element, and a driving mechanism. A first block obtains a linear evaluation value by normalizing, by a first tolerance, an aberration expressed by a linear function of a position... | 06/12/2007 |
| 7180644 | Holographic storage lenses Disclosed are holographic storage systems and lenses for holographic storage systems. The lens units can be of a two-component design. The lenses can be used to both record to photorefractive storage media and to read from photorefractive storage media. ... | 02/20/2007 |
| 7042656 | Compact wide-field-of-view imaging optical system An imaging optical system has an optical axis and a refractive optical group including a lens lying on the optical axis. At least one lens of the refractive optical group lying on the optical axis has an aspheric front surface and an aspheric back surface. An image ... | 05/09/2006 |
| 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 |
| 7016126 | Optical element holding system in projection optical system Disclosed is a simple and compact optical element holding system in a projection optical system which enables correction of astigmatism without causing comatic aberration. The holding system includes a relative angle adjusting system for tilting one of at least two ... | 03/21/2006 |
| 7009778 | Imaging optical system, image display apparatus and imaging optical apparatus An imaging optical system images a one-dimensional image on an image surface by regarding as an object a light modulator element which has light modulator parts arranged one-dimensionally in a first direction, and regarding a bundle of rays from the light modulator ... | 03/07/2006 |
| 6961190 | Bulk lens, light emitting body, lighting device and optical information system The lens embraces a bulk-shaped lens body identified by a top surface, a bottom surface and a contour surface, and a well-shaped concavity is implemented in the inside of the lens body, aligned from the bottom surface toward the top surface. The lens body has geomet... | 11/01/2005 |
| 6924942 | Holographic storage lenses Disclosed are holographic storage systems and lenses for holographic storage systems. The lens units can be of a single-component design. The lenses can be used to both record to photorefractive storage media and to read from photorefractive storage media. ... | 08/02/2005 |
| 6627869 | Beam shaper, and semiconductor laser source device and optical head using the beam shaper A beam shaper is made up of a single lens whose both surfaces are toric surfaces. Assuming that directions where the beam divergence angle are larger and smaller in the far field from the semiconductor laser source are referred to as the vertical and hori... | 09/30/2003 |
| 6504657 | Optical member An optical member having a toric functional surface has a marking which is made by a configuration of a mold used to form the optical member. The marking is formed in the optical member outside an effective area of the functional surface of the optical me... | 01/07/2003 |
| 6411445 | Optical system with center-bored catadioptric imaging lens An optical system has an outer dome and a detector system with an optical train and a sensor disposed to receive an optical ray passing sequentially through the outer dome and the optical train. The optical train includes a solid catadioptric imaging lens... | 06/25/2002 |
| 6356396 | Optical system having a generalized torus optical corrector An optical system includes a window, an optical corrector formed of a curved piece of a transparent material having a front surface and a back surface, and a sensor system with a sensor positioned such that the optical corrector is between the window and ... | 03/12/2002 |
| 6285506 | Curved optical device and method of fabrication An optically curved device and method of fabrication are presented wherein a flexible layer is bonded to a thick epoxy layer which functions to conform the flexible layer to a desired shape. The thick epoxy layer undergoes high viscosity flow under pressu... | 09/04/2001 |
| 6222864 | High brightness laser diode source Coherent light sources combining a semiconductor optical source with a light diverging region, such as a flared resonator type laser diode or flared amplifier type MOPA, with a single lens adapted to correct the astigmatism of the light beam emitted from ... | 04/24/2001 |
| 6108138 | Optical beam shaper, and radiation source unit and scanning device including said beam shaper An optical beam shaper (10) for converting a radiation beam (5, 6, 7, 8) having an elliptical cross-section into a beam (9) having a more circular cross-section is described. This element (10) has a cylindrical entrance surface (12) and a toroidal exit su... | 08/22/2000 |
| 6104520 | Laser scanning optical system and image forming apparatus using the same A laser scanning optical system includes a light source, a polygonal mirror for deflecting a light beam emitted by the light source, and a scanning lens system for guiding the light beam deflectively reflected by the polygonal mirror to a surface to be sc... | 08/15/2000 |
| 6091532 | Optical element, method of molding the same, and laser scanning optical system It is an object of this invention to provide an optical element molding method capable of correcting local processing errors in an optical element without increasing the size of an apparatus or raising the manufacturing cost. To achieve this object, an op... | 07/18/2000 |
| 6052236 | Light source equipment optical scanner and data reading apparatus using the same The light source equipment is provided with a light source and an anamorphic single lens. The anamorphic single lens has different refracting powers in the x and y directions orthogonal to each other, and converts a light from the light source to a light ... | 04/18/2000 |
| 6034822 | Device for distributing light on an image frame A device uses a divergent lens (7) having a concave surface with a central region (12) and a peripheral region (13) of lower curvature than the central region. The light beam (16) crossing the central region is spread over the entire surface of the image ... | 03/07/2000 |
| 5986791 | Optical scanning device and a scanning lens therefor An optical scanning device of the present invention includes a simple scanning lens. At least one of opposite surfaces of the lens has a nonarcuate shape, as seen in a polarization plane. At least one of the opposite surfaces is a special toric surface. F... | 11/16/1999 |
| 5946143 | Dynamic aberration correction of conformal/aspheric domes and windows for missile and airborne fire control applications An optical correction technique which utilizes a pair of toroidal optical elements which are translated axially to provide dynamic correction of astigmatic aberrations induced by conformal/aspheric domes and windows as a function of sensor gimbal angle. T... | 08/31/1999 |
| 5914821 | Torus conformal window and sensor system using the window A window is made of a curved piece of a transparent material having a front surface and a back surface. At least one of the front surface and the back surface has a shape which is a segment of a convex aspheric shape rotated about a center, otherwise know... | 06/22/1999 |
| 5905597 | Optical apparatus The present invention is characterized in that when a phototaking lens system forms image information on a image pickup device in which a plurality of light-receiving elements are arranged in a non-square lattice pattern and a signal from the image pickup... | 05/18/1999 |
| 5886834 | Passive scene base calibration system An image detection system (10) uses an optical configuration for both image forming and calibration phases of operation. A field lens (20) has an inner portion (36) of a conventional prescription to allow for collection of scene based energy for an opto-e... | 03/23/1999 |
| 5790576 | High brightness laser diode source Coherent light sources combining a semiconductor optical source with a light diverging region, such as a flared resonator type laser diode or flared amplifier type MOPA, with a single lens adapted to correct the astigmatism of the light beam emitted from ... | 08/04/1998 |
| 5781324 | Optical scanning lens and optical scanner An optical scanning lens is provided with a lens configuration for focusing and correction of field curvature and scanning speed of a deflected laser beam. The lens configuration includes a meniscus lens and a positive meniscus lens sequentially aligned a... | 07/14/1998 |
| 5757557 | Beam-forming lens with internal cavity that prevents front losses A device for directing light longitudinally forwardly, that comprises a lens body having a front face facing forwardly, rearward body extent, and a curved sidewall extending between the rearward body extent and the front face; a rear cavity in the body, t... | 05/26/1998 |
| 5715079 | Scanning optical system A scanning optical system has a deflector and a scanning lens. A convergent beam is deflected at a uniform angular velocity by the deflector. The scanning lens forms the scanned beam into an image on a scanned surface to scan the surface substantially at ... | 02/03/1998 |
| 5684641 | Objective lens and optical head apparatus using the objective lens In an objective lens for an optical head apparatus for reading or writing an information on a recording medium such as optical disc, astigmatism is added on axial wavefront aberration so that off-axis astigmatism is to be cancelled by the axial astigmatis... | 11/04/1997 |
| 5631763 | Fθ lens system in a laser scanning unit An fθ lens system employing two fθ lenses in a laser scanning unit. According to the fθ lens system, a cheap plastic can be used for an fθ lens by lowering the refractive index of one of two fθ lenses and forming a toric face on one of total four ref... | 05/20/1997 |
| 5627689 | Light-supplying optical device An optical element that produces line bow, for example, a toric or cylindrical mirror or lens, is provided in a light-supplying optical device in addition to a first line-bow-producing optical element already present in the device so that a substantially ... | 05/06/1997 |
| 5619362 | Scanning lens and optical scanner using the same An optical scanner including a semiconductor laser device, aperture, collimator, cylindrical lens, polygonal mirror and one fθ lens element molded from plastics. The first surface of the fθ lens in a deflecting plane (or the plane formed by the principa... | 04/08/1997 |
| 5615050 | Optical system with reduced focus spot size A toroidal lens has a first surface comprised of a convex curve rotated about a central axis and a second surface comprised of a concave curve rotated about the central axis. The toroidal lens receives a radiation beam and produces an annular or halo shap... | 03/25/1997 |
| 5592286 | Container flange inspection system using an annular lens The present invention provides a machine vision inspection system for inspecting the flanges of metal containers that can reliably detect flange defects as small as 0.010 to 0.012 inches. The inspection device comprises apparatus for producing an enlarged... | 01/07/1997 |
| 5581391 | Scanning optical system A synthetic resin lens for an optical system of a scanning optical system comprises a synthetic resin lens having a guide hole for an adhesive curing promoting light formed at a mount area thereof.... | 12/03/1996 |
| 5570143 | Toric lens with axis mislocation latitude A toric lens for axis mislocation correction has optical topography on at least one surface of the lens which induces a depth of field effect on the eye and enables the principle meridians of power on the lens to align with those on the eye of the wearer ... | 10/29/1996 |
| 5535058 | Focus error detecting element and optical head using the same An optical system for detecting a focus error signal in an optical disc according to the astigmatic method is constituted by a single lens element. This lens element has a first lens surface defined by a toric surface effective to converge the incident ra... | 07/09/1996 |
