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7400457 |
Rectangular flat-top beam shaper
The invention relates to a beam shaping system for providing a square or rectangular laser beam having a controlled intensity profile (uniform, super gaussian or cosine corrected for example) from...
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7224537 |
Diffusion lens for diffusing LED light
Disclosed herein is a diffusion lens for diffusing LED light. The diffusion lens of the present invention includes a bottom surface, a conic first lens surface, a second lens surface, and a third...
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7206140 |
Lens, lens array and optical receiver
In one embodiment, a lens has an object surface and an image surface, with the shape of the image surface being defined by an equation having a conic component and a cone component. The lens may be...
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7177097 |
System and method for extending viewing angle of light emitted from light pipe
Described is a light pipe having a first end receiving light beams from a light source, a light pipe body through which the light beams travel and a second end including a dispersion structure with...
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7042655 |
Apparatus and method for use in fulfilling illumination prescription
The present embodiments provide methods, apparatuses, and assemblies for use in producing a desired output beam that meets a desired intensity prescription. An apparatus can include an input...
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6961194 |
Integrated TIR prism and lens element
Disclosed is an optical component, which comprises a prism element adjacent to a lens element, where the two elements are separated by a small air gap. In disclosed embodiments, the elements have...
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6954315 |
Night vision and audio signal reduction system
A surface configuration obscures an object from detection by night vision devices, ultraviolet devices and infrared devices. The surface configuration is three dimensional, having spaced inner and...
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6940659 |
Cone-shaped lens having increased forward light intensity and kits incorporating such lenses
The invention is directed to lenses having thin walls and a generally conical shape for use with dental light-curing devices. The conical or otherwise tapered shape enables the apex of the lenses...
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6934093 |
Optical system
The present invention provides an optical system for illuminating and viewing a target in which an illumination element and a receiving means are disposed behind a single optical window, and which...
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6847494 |
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...
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6836377 |
Optical system
An optical system for illuminating and viewing a target ( 15 ) in which an illumination element ( 16 ) and a receiving element ( 13 ) are disposed behind a single optical window ( 14 ), and which...
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6788470 |
Light collimating system
A light collimating system includes a transparent substrate, a plurality of conic elements and a screen. Each of the conic elements has a relatively narrow light incident side to which the screen...
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6778336 |
Reduced visibility surface
A surface configuration obscures an object from detection by night vision devices, ultraviolet devices and infrared devices. The surface configuration is three dimensional, having spaced inner and...
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6754012 |
Synthetic resin-made concave cone lens for irradiation of standard laser line
The invention is to provide a synthetic resin-made concave cone lens for radiating a standard laser line in a low cost in that accuracy of irradiation of a standard laser line can be assured,...
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6724542 |
Monolithic optical device for light transmission, and multi-channel optical system using same
An integrated light-transmission optical module for a safetyoptoelectronic barrier, comprises a condenser element having a first lens, and an objective having a second lens which are located...
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6639725 |
Protective, diffusive film and process for producing the same
There is provided a protective, diffusive film for use in a surface light source device provided with a lens film, said protective, diffusive film comprising: a transparent substrate layer; and a...
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6569606 |
Method of reducing photoresist shadowing during angled implants
The present invention is directed to a method of forming halo implants in a semiconductor device. In one illustrative embodiment, the method comprises forming a structure above a semiconducting...
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6335759 |
Pinhole video camera
A pinhole camera in which a conical lens with an apical angle of 91.13° to 91.15° is used to correct the fisheye characteristics, and ⅓-inch fixed charged coupled device and a pinhole with a...
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6185051 |
High numerical aperture optical focusing device for use in data storage systems
A near-field optical or MO data storage system uses an optical focusing device for focusing an incident optical beam to a small size focal spot. The optical focusing device includes an optically...
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6137632 |
Method and apparatus for lossless beam shaping to obtain high-contrast imaging in photon tunneling methods
An axiconic telescope that receives a collimated input light beams and includes a first axicon and second axicon. Depending on the distance between the two axicons, the input collimated beam is...
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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...
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5980063 |
Illuminated elongated tubular body
The present invention relates to a light stick comprising an electric light source and a light-refracting tubular body. The light-refracting tubular body has a longitudinal axis and is made of a...
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5808759 |
Projection type display including a holographic diffuser
A light source device including a light emitting element emits a luminous flux, which is converged by a reflecting mirror. A conical light-refracting element receives the luminous flux converged by...
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5790305 |
Projection system comprising a free form reflector and a free form lens
The disclosure relates to an LCD projector illumination system that optimizes the illumination through a liquid crystal screen as well as through the aperture of the system's objective, wherein the...
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5706139 |
High fidelity optical system for electronic imaging
An optical subsystem (14) for use in an electronic imaging system (10) utilizes a spatial filter (20) having a concentric optical path profile for removing unwanted structures in the optically...
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5699201 |
Low-profile, high-gain, wide-field-of-view, non-imaging optics
A two stage non-imaging optical concentrator providing high concentration while providing a low aspect ratio and a wide field of view. The invention includes a non-imaging refractive member and a...
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5629808 |
D-shape laser beam projector
An optical lens is useful as a D-shape laser beam projector. The lens consists of a known linear diverging element enabling the expansion of a laser beam into an uniform line, and a matching...
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5579102 |
Transmitter and receiver units for spatial position measurement system
Improved transmitter and receiver units for use in spatial measurement system that are easy and inexpensive to manufacture while providing a high degree of reliability are disclosed. Specifically,...
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5557471 |
Lens for depositing target material on a substrate
A method of depositing a thin layer of a target material on a substrate is disclosed. The method comprises illuminating the material with at least one elliptical laser beam so that a desposition...
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5475535 |
Condensers for overhead projectors
A family of condenser lenses for an overhead projector (OHP) are designed to balance overall brightness in the projected image versus uniformity of illumination. The lenses are plano-convex and...
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5461473 |
Transmitter and receiver units for spatial position measurement system
Improved transmitter and receiver units for use in spatial measurement system that are easy and inexpensive to manufacture while providing a high degree of reliability are disclosed. Specifically,...
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5444574 |
Electronic image pickup apparatus equipped with means for eliminating moire
An electronic image pickup apparatus comprising an imaging optical system for forming images of an object and image pickup device having light receiving surface configured so as to sample the...
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5438366 |
Aspherical blur filter for reducing artifacts in imaging apparatus
An optical blur filter having a substantially aspherical shape is used in imaging apparatus to limit high spatial frequencies incident upon an image sensor, and thereby to reduce undersampling...
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5322998 |
Conical blur filter for reducing artifacts in imaging apparatus
An optical blur filter having a substantially conical shape is used in imaging apparatus to limit high spatial frequencies incident upon an image sensor, and thereby to reduce undersampling...
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5289316 |
Measuring objective
The invention is directed to a measuring objective having a large free operating space and having very small imaging errors with respect to coma, astigmatism and distortion. The main rays are, at...
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5285318 |
Illumination system having an aspherical lens
A lens system containing an aspherical portion enabling minimization of spherical aberration as well as the lens length. The lens system includes a conical lens portion providing total internal...
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5251063 |
Large-aperture three-lens objective with aspherical-surfaces
A three-lens objective has the following characteristics: A front lens consists of a first material of relatively low dispersion, a median lens consists of a second material of relatively larger...
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5140469 |
Illumination apparatus for semiconductor fabrication including conical optical means
A method of patterning a photoresist layer to provide an aperture having retrograde sidewalls is described. Illumination may be through a conical prism arrangement or a conical reflecting mirror...
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5115349 |
Projector system and system for detecting flaw
A projector system includes an optical converter element of a cylindrical shape, and a light beam-generating device for generating a plurality of light beams. Optical axes of the plurality of light...
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5113244 |
Fiber optic combiner/splitter
The fiber optic combiner/splitter is a positive and negative axicon combination which can convert a ring-shaped beam into a solid beam. The positive half of the axicon is effectively a plano-convex...
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5052772 |
Fiber type light wave-length converting apparatus
A fiber type light wave-length converting apparatus having a fiber type light wave-length converting element and an axicon lens. The fiber type light wave-length converting element is arranged to a...
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5013144 |
Light source having a multiply conic lens
A lens for a light emitting diode (LED) lamp is formed as two ellipses rather than as one. The ellipses are axially symmetric and are translated away from the optical axis with each ellipse having...
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5013143 |
Lens
A lens or lens system for use in reading optical data has as one component a pickup lens having finite or infinite conjugates. The pickup lens is biaspheric where the surfaces may have spherical,...
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4907867 |
Varifocal optical system and associated electro-mechanical control
This varifocal optical system is electro-mechanically controlled to vary focal distance, temperature correction focussing and finite distance focussing. It is constituted by four single lenses (L1,...
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4659191 |
Conical split-image microscopic lens No. 3
A conical magnifying stage lens M:RT-TR-2RT:C comprising four component lenses with concave conical, convex conical and planar sections (faces). An afocal indicent beam from the object is refracted...
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4657353 |
Conical beam concentrator
A single conical lens with a planar section (face) which transmits an annular incipient beam, a concave conical reflective section which reflects the beam, and a concave conical section which...
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4637691 |
Mirror converging-type illumination optical system
A mirror converging-type illumination optical system for converging light rays from a light source into substantially parallel light rays using a concave reflecting mirror having a secondary curved...
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4627694 |
Indirect ophthalmoscopy lens for use with slit lamp biomicroscope
A very strong plus symmetrical double aspheric lens is used as a condensing-image-forming lens for indirect ophthalmoscopy with the slit lamp biomicroscope. The patient is seated at the slit lamp...
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4627692 |
Louvered conical beam concentrator RT:C
A conical beam concentrator consisting of a series of six component lenses which receive a convergent conical beam of diffused sunlight and emit a concentrated circular whole beam. There are six...
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4621908 |
Monochromatic beam concentrator
An upper stage lens which receives a convergent conical incipient beam and emits a concentrated whole beam into a lower stage lens which emits a concentrated whole beam. The upper stage lens is...
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