| Patent Number |
Title Of Patent |
Date Issued |
| 6920168 |
Optical assembly |
July 19, 2005 |
| The invention, in accordance with one aspect, is an optical assembly including a substrate, a light emitting device mounted over a major surface of the substrate and having a back face, at least one channel formed in the substrate near the back face of the light emitting device, and |
| 6785033 |
Optical attenuating device and method of manufacture therefor |
August 31, 2004 |
| The present invention provides, in one aspect, an optical device, a method of manufacture therefor, and an optical system including the same. The optical device may include a membrane configured to be electrically deformable and reflective. The membrane may further be positioned over a |
| 6650916 |
Method and apparatus for providing high contrast imaging |
November 18, 2003 |
| An in vivo imaging device having an illumination system that creates a virtual source within a tissue region of a subject in a non-invasive manner. The illumination system transforms a maximum amount of illumination energy from a light source into a high contrast illumination pattern |
| 6469843 |
Optical bench assembly and fabrication method |
October 22, 2002 |
| An optical lens for use with an optical bench. The lens has a diffractive element which provides an angular offset to radiation incident on the lens. The offset substantially compensates for an undesirable focal point location caused by a variance between an integral component position o |
| 6438396 |
Method and apparatus for providing high contrast imaging |
August 20, 2002 |
| An in vivo imaging device having an illumination system that creates a virtual source within a tissue region of a subject in a non-invasive manner. The illumination system transforms a maximum amount of illumination energy from a light source into a high contrast illumination pattern |
| 5894326 |
Electronic camera having a printer |
April 13, 1999 |
| In an electronic camera including optics for focusing an image of a subject at an image plane; an area image sensor disposed at the image plane for receiving the image subject and producing a digital image representing the subject; storage memory coupled to the area image sensor for stor |
| 5859715 |
Diffractive laser scanner |
January 12, 1999 |
| A scanner (40) is disclosed which includes a source of coherent light (12), a radial holographic deflector (16), a F.theta. lens (62), which images a scanned spot onto an image plane (18). The F.theta. lens (62) is comprised of a decentered aspheric mirror (64) and a diffractive--refract |
| 5825556 |
Zoom lens |
October 20, 1998 |
| A zoom lens comprises a plurality of lens elements arranged into three lens units. More specifically, there is a first lens unit of positive refractive power, a second lens unit of negative refractive power, and a third lens unit of positive refractive power. The third lens unit is l |
| 5822125 |
Lenslet array system |
October 13, 1998 |
| A lenslet array system includes (i) a first assembly including a field-limiting mask and a first lenslet array having an associated focal plane and (ii) a second assembly including a second lenslet array accepting light from the first assembly. The first lenslet array accepts a full |
| 5812322 |
Lenslet array system incorporating a field lenslet array |
September 22, 1998 |
| A lenslet array system for imaging an associated object onto a final image plane includes (i) a first lens assembly including a field limiting mask and a first lenslet array having an associated image plane, (ii) a second assembly including a rear lenslet array, and (iii) a middle lensle |
| 5801889 |
Technique to eliminate scattered light in diffractive optical elements |
September 1, 1998 |
| Diffractive optics using surface relief profiles, also known as blazed gratings having ramps and edges or steps (also referred to as blazed facets with discontinuities at the interfaces between adjacent facets) defining grating lines and phase delays to which light propagating through |
| 5799216 |
Scene intensity measuring and illumination source detection apparatus |
August 25, 1998 |
| Scene intensity measuring and illumination source detection apparatus for determining scene illuminant and appropriate exposure settings for an image capture device is disclosed. The apparatus includes a diffractive optical element including an off-axis segment for dispersing incident |
| 5796522 |
Lenslet array system with a baffle structure and a shutter |
August 18, 1998 |
| A lenslet array system for imaging an associated object onto a final image plane includes (i) a first assembly including a baffle structure and a first lenslet array having an associated image plane and (ii) a second assembly including a second lenslet array.The first lenslet array accep |
| 5742431 |
Catadioptric lens system incorporating diffractive achromatization |
April 21, 1998 |
| A catadioptric lens system may be operated in the telephoto mode to allow images of distant objects to be formed with large image plane magnification and be part of a camera body wherein a rear reflective section of the catadioptric lens system is provided by a front face of the came |
| 5731914 |
Zoom lens |
March 24, 1998 |
| A wide angle zoom lens suitable for use in cameras for providing sufficiently wide range of field angles to cover a frame of a film in the camera provides performance comparable to zoom lenses having more elements. The wide angle zoom lens has four elements in three groups which are |
| 5731899 |
Lenslet array system incorporating an integral field lens/reimager lenslet array |
March 24, 1998 |
| A lenslet array system for imaging an associated object onto a final image plane includes (i) a first lens assembly including a field limiting mask and a first lenslet array having an associated image plane and (ii) a second assembly including a second lenslet array accepting light from |
| 5726810 |
Compact zoom lens |
March 10, 1998 |
| A compact zoom lens with three lens units of positive, positive and negative optical powers, respectfully. The front and the rear lens units move together for zooming and the middle unit moves independently. There is one aspheric surface in each of the three lens units. An aperture stop |
| 5715091 |
Hybrid refractive/diffractive achromatic camera lens |
February 3, 1998 |
| A hybrid refractive and diffractive achromatic lens suited for single-use or inexpensive single-lens cameras operating in visible spectral range. The lens comprises a body of optically transmissive material having an index of refraction at a wavelength approximately at the center of said |
| 5715090 |
Color corrected viewfinder including a negative power lens component having a diffractive surfac |
February 3, 1998 |
| A viewfinder having an optical axis and comprising a negative lens component including a lens element having a first diffractive surface which introduces a phase modification .phi.(r) into a light wavefront passing through this diffractive surface and a positive lens component receiv |
| 5703351 |
Autofocus module having a diffractively achromatized toroidal lens |
December 30, 1997 |
| An autofocus module generates a beam of light that is divergent in the horizontal direction and collimated in the vertical direction. The beam is formed using a laser diode and a diffractively achromatized toroidal lens. A pair of receiver lenses which have focal lengths that are longer |
| 5701005 |
Color separating diffractive optical array and image sensor |
December 23, 1997 |
| In one embodiment a diffractive element, having at least one surface formed as a plurality of blazed diffractive features that are curved and decentered to focus and chromatically disperse incident light into Red Green and Blue spots. An array of the diffractive elements is disclosed |
| 5682266 |
Blur filter for eliminating aliasing in electrically sampled images |
October 28, 1997 |
| A blur filter for use with a multi-element electro-optical sensor is formed with a plurality of diffractive elements positioned adjacent each other with each of the elements being comprised of uniformly spaced concentric diffractive features. The plurality of diffractive elements are sec |
| 5638212 |
Method of manufacturing a diffractive surface profile |
June 10, 1997 |
| A method of manufacturing a diffractive surface comprising: rotating a surface to be cut at a rate W>1,500 RPM; translating a cutting tip at low speed V where V<1.2 mm/minute; and cutting the surface with the cutting tip. |
| 5612172 |
Method and apparatus for writing onto a photosensitive material using a modulated light beam |
March 18, 1997 |
| A method and apparatus for printing on to a photosensitive material. The apparatus includes a light source for producing light composed of at least two colors, a collimator for collimating the light produced by the light source so as form a beam of light, a modulator for modulating the b |
| 5589983 |
Method of manufacturing a diffractive surface profile |
December 31, 1996 |
| A method of manufacturing a diffractive surface comprising: rotating a surface to be cut at a rate W>1,500 RPM; translating a cutting tip at low speed V where V<1.2 mm/minute; and cutting the surface with the cutting tip. |
| 5581405 |
Hybrid refractive/diffractive achromatic camera lens and camera using such |
December 3, 1996 |
| A hybrid refractive and diffractive achromatic lens suited for single-use or inexpensive single-lens cameras operating in visible spectral range. The lens comprises a body of optically transmissive material having an index of refraction at a wavelength approximately at the center of said |
| 5569904 |
Multispot autofocus system having a radiation emitter which emits radiation that is divided into |
October 29, 1996 |
| A multispot autofocus system, usable with a camera, includes a radiation emitter for emitting visible or infrared radiation. The radiation is divided into at least three discrete beams of radiation by one or more holographic and/or diffractive optical elements. The beams of radiation |
| 5557315 |
Digital printer using a modulated white light exposure source |
September 17, 1996 |
| A method and apparatus for writing onto a photosensitive material with a single white light source. The apparatus includes a light source for producing a light composed of at least two color components, a collimating lens for collimating the light emanating from the light source so as to |
| 5543966 |
Hybrid refractive/diffractive achromatic camera lens |
August 6, 1996 |
| A hybrid refractive and diffractive achromatic lens suited for single-use or inexpensive single-lens cameras operating in visible spectral range. The lens comprises a body of optically transmissive material having an index of refraction at a wavelength approximately at the center of said |
| 5500702 |
Device for identifying a perimeter of a scene to be recorded by an image recording apparatus |
March 19, 1996 |
| A device for identifying a perimeter of a scene to be recorded by an image recording apparatus, such as a camera, includes one or more laser diodes for emitting visible radiation which can be formed into a plurality of beams. The beams are arranged to impinge on a scene substantially alo |
| 5485235 |
Pointing system for correctly aiming an image recording apparatus towards a human subject |
January 16, 1996 |
| A camera includes a laser diode for emitting visible laser light towards a human subject whose image is to be recorded. The laser light is divided into a plurality of discrete, aiming beams of radiation by a pair of holographic and/or diffractive elements. The discrete beams are separate |
| 5471046 |
Camera auto-focusing system with designator using a volume holographic element |
November 28, 1995 |
| Apparatus for use with an imaging optical system, to indicate both the direction and magnitude of focus adjustment, includes a diffractive optical element exposed to a broad spectrum of radiation. The element filters out a narrow spectrum of the radiation and directs it into a path c |
| 5164955 |
Laser diode with volume refractive index grating |
November 17, 1992 |
| A laser diode comprises an optically active planar waveguide and a volume refractive index grating for providing distributed optical feedback of stimulated radiation to the waveguide. According to the invention, the grating comprises a stack of alternating thin layers each layer being le |
| 5070509 |
Surface emitting, low threshold (SELTH) laser diode |
December 3, 1991 |
| Two novel structures of a high-quantum efficiency, wavelength-tunable, surface-emitting, low threshold laser diode which optimally utilizes certain advantages of a distributed feedback (DFB) structure. The preferred embodiments combine a separate confinement heterostructure (SCH), su |
| 5049936 |
Electrophotographic copier/duplicator having dual imaging apparatus |
September 17, 1991 |
| An electrophotographic copier/duplicator having a 17".times.11" wide endless photoconductor includes single imaging apparatus for forming and processing a single 17".times.11" image at a time, within a 17".times.11 " image frame of its photoconductor, and dual imaging apparatus for s |
| 5039183 |
Holographic laser scanner |
August 13, 1991 |
| A light scanning system for moving a light beam across a straight surface. The system includes a laser light source, a rotating holographic disk deflection system, and a multielement F.theta. lens constructed entirely of holographic plates. The holographic plates are offset from each oth |
| 5018808 |
Method and apparatus for beam displacement in a light beam scanner |
May 28, 1991 |
| A method and apparatus is provided for line scanning a beam receiving member, wherein a scanning beam is angularly or laterally displaced to compensate for scan line spacing error. The beam is displaced according to error arising from variation (flutter) in the relative motion of the bea |
