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WO/2008/066937A1 |
Systems and methods for evaluating an optical property of a gemstone operate to trace selected and ordered model light rays through a model of the gemstone. The rays may be selected such that, when ordered into a sequence, the points of ...
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WO/2008/065509A2 |
A wide angle viewing apparatus for security applications is disclosed. The apparatus comprises a wide-angle lens and a diffusing screen. The wide-angle lens incorporates an image inverter and a means for eliminating stray light.
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WO/2008/035107A1 |
A lens arrangement suitable for looking through small holes is provided in which no conventional integral physical lens stop is required. The lens arrangement is relatively insensitive to its position, meaning that it may be set back beh...
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WO/2008/010560A1 |
An eyepiece (EL1) includes a first lens (L1) having a positive refractive power and a second lens (L2) having a positive refractive power which are arranged in this order from an object (O). A contact multi-layer diffractive optics (DOE)...
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WO/2007/140747A1 |
A telescope eyepiece (1) is described which has an exit pupil at a great distance for imaging an image plane (9) or a reticle to infinity and comprises a field stop (3), arranged on the light entry side (2), and two lens groups, separate...
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WO/2007/082691A2 |
The invention relates to a stereoscopic optical system (1) which comprises a first optical subsystem (2L) with a plurality of optical elements (4L-12L) for providing a left-hand imaging beam path (14L) of the stereoscopic optical system ...
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WO/2007/057987A1 |
It is intended to provide binocular loupes which can suit for the present vision of an operator during a surgical operation or a precise operation. Binocular loupes having a frame, a pair of binocular loupes, an attachment member for fix...
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WO/2007/055143A1 |
A collimator simple in construction, easy to produce and free from parallax. The collimator comprises, sequentially from a target object side, a meniscus lens having a positive refractive power with its convex surface facing the target o...
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WO/2007/031847A1 |
A wide angle viewing apparatus is disclosed, comprising a wide-angle lens (1) , a multiple reflection lens (2) and a diffusing screen (4) . Said wide-angle lens incorporates an image inverter fig. 2 (c, d) . The multiple reflection lens ...
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WO/2007/006017A2 |
An optical device with five air-spaced optical elements. An optical device in the form of an eyepiece is disclosed with a center negative lens and two outer positive lenses on each side of the intermediate negative lens. The eyepiece tra...
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WO/2006/106835A1 |
It is possible to provide an image forming optical system capable of preferably correcting horizontal color aberration compatible with a high resolution of the image display element. The image forming optical system (13-16) forms a virtu...
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WO/2006/085368A1 |
A portable magnifying glass with a writing implement having both the function of a magnifying glass and the function of a writing implement. The portable magnifying glass with the writing implement comprises a magnifying glass part (1) h...
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WO/2006/054868A1 |
A multi-focus magnifying glass is disclosed. The multi-focus magnifying glass includes a base plate placed on a supporting surface, a support fixed to the base plate and extended upward, and a lens connected to the end of the support and...
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WO/2006/030554A1 |
A case comprising a base section on which a portable electronic apparatus having a screen can be mounted, a display enlarging means (e.g. a resin lens) supported above the base section so as to be able to enlarge the display, and a suppo...
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WO/2006/024269A1 |
The invention relates to a magnifying optical device in the form of an illuminated magnifying glass (1) which comprises at least one handle element (2) and one lighting device (5) for lighting the object to be examined and a sensor devic...
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WO/2006/000707A1 |
The invention relates to a magnifying screen comprising capture means (2) and means for magnifying images (3). The capture means (2) are prevented in the form of at least one u-shaped handle (4) and the magnifying means (3) are provided ...
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WO/2006/001062A1 |
A screen magnifier comprising a case body capable of containing a storage medium, a supporting means for supporting the case body to the housing of an electronic device having a display, and a lens means (e.g. a Fresnel lens) for enlargi...
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WO/2005/125180A1 |
A viewer for a digital camera comprises a first lens and a second lens, the first and second lenses being aligned axially, wherein the first lens and second lenses are mounted in respective lens mounts, and wherein the first and second l...
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WO/2005/109071A1 |
An improved door viewer providing a large area viewable image is disclosed, comprising a wide-angle lens (1), a multiple reflection lens (2) and a diffusing screen (4). The multiple reflection lens comprises a first transmitting surface ...
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WO/2005/106565A1 |
A flip screen magnifying system for a cellular telephone having a base portion and a top portion including an information screen. The base and top portions are hinged such that the top portion may be folded with the screen proximate the ...
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WO/2005/098514A2 |
An illuminated magnifying device comprises an elongated magnifying lens, a light source, and an elongated light pipe diposed along the magnifying lens operable to receive light emitted from the light source and direct the ligh outwardly ...
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WO/2005/088384A1 |
An image display optical system (1) having a large exit pupil while having a single structure of the substrate. The image display optical system (1) comprises a transparent substrate (11) in which a display beam (L) of the angle of view ...
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WO/2005/085933A1 |
There is provided an image display device enabling an observer to observe a 2-dimensional image displayed on an image display element as a virtual image enlarged by a virtual optical system. The image display device includes: a prism (15...
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WO/2005/074266A1 |
An image display comprising a display section for projecting a light emitted from a two-dimensional emission photoelectric device the two-dimensional emission surface of which is perpendicular to the light beam emitting direction to the ...
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WO/2005/071977A2 |
A convergence prism assembly with a housing and a prism structure having a plurality of prisms mounted in a unitary assembly.
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WO/2005/043216A1 |
One plane of each convex lens (L21, L22) having a large light flux deflecting angle and being closer to the pupil H of an eye-ball is a Korenich plane having a Korenich constant, K < 0, and a laminated lens (L23, L24) formed by combining...
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WO/2004/079431A1 |
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 diffract...
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WO/2004/059349A1 |
The invention relates to a magnifying glass (10) comprising a central magnifying glass area (14) and at least one illumination area (16, 18) that laterally borders the magnifying glass section (14). The magnifying glass area (14) is prov...
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WO/2004/056102A1 |
The invention relates to a device (5) for viewing a display screen (2), comprising a large-area visual medium (1) that can be placed in front of the display screen (2). The inventive device is characterized in that the visual medium (2) ...
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WO/2004/051223A2 |
The present embodiments provide methods, apparatus and assemblies for use in a producing a desired output beam that meets a desired intensity prescription. An apparatus can include an input surface (155), and an optically active output s...
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WO/2004/042448A1 |
A magnifying lens apparatus (10) containing a magnifying lens (12) mounted to a support housing (30). The apparatus contains at least one light emitting diode lamp (24, 26) to provide at least some illumination to an object being magnifi...
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WO/2004/036261A2 |
An environment viewing enabling system for enabling viewing of an environment through a partition (14). The system enables clear and magnified viewing of the environment therethrough at controllably moveable locations thereof about the p...
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WO/2004/034123A1 |
The invention concerns an illuminating device for an optical magnifying instrument (1), in particular a magnifying glass, a diagnostic microscope or a surgical microscope, comprising a lens (2) designed to represent the light of an objec...
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WO/2004/025328A2 |
A magnifying optical device, especially a manual magnifying glass, a stand-up magnifying glass, microscope or the like, comprising at least one illuminating element for at least partially illuminating the area which is visible through th...
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WO/2004/015457A2 |
A viewing instrument (115) that has a collapsed configuration and an expanded configuration. The viewing instrument includes two lenses (160, 162) that are located within a housing (120) when the viewing instrument is in its collapsed co...
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WO/2004/011986A1 |
When in use, a platy unit (5) equivalent to a glasses lens and constituted of an optical material is positioned in front of the eyes of a user located in the vicinity of the exit pupil (P) of an image combiner (1). The image combiner (1)...
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WO/2003/107069A1 |
A fountain pen-shaped magnifier that can be carried in daily life and always available in a clear condition without dust. In use, the magnifier does not require bothering operation such as removing of a case. The magnifier is formed with...
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WO/2003/103439A2 |
Apparatus for viewing an information mark on the table (7) of a gemstone (6) in the form of a jewellery case (1). The jewellery case 1 has a body portion (2) for holding a finger ring (5) with a gemstone (6) uppermost, and a pivoted lid ...
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WO/2003/105065A1 |
A wallet card (400), such as a financial transaction card, has a substantially non-foldable semi-rigid base. Optionally, the semi-rigid base may include a magnifying lens (404). One or more lights (410) are disposed in the card base to p...
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WO/2003/103254A1 |
The invention relates to a portable telecommunication device, comprising a main body (100), detachable front panels (122, 128), a protective cover (140) and further comprising optical means for magnifying the screen and keyboard.
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WO/2003/083556A2 |
A viewing device comprises a pair of substantially inflexible nesting lenses. One of the lenses has a divergent refracting surface and the other has a convergent refracting surface. The device further comprises means for moving at least ...
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WO/2003/075073A2 |
Disclosed is an optical visual aid, particularly a manual magnifier or standing magnifier, comprising a housing, a magnifying optical element which is fixed to one area of the housing, and an electronic image-detection system in the form...
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WO/2003/073150A1 |
The invention relates to a magnifying optical system, i.e. a magnifying visual aid such as a magnifying lens, a reading glass, magnifying or telescopic spectacles, comprising a holding device for the magnifying element/s and an illuminat...
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WO2002053968A9 |
Disclosed is a chassis (12) having opposing major faces and an opening (15). The chassis is approximately the size of a commercial card, namely, a bankcard such as a credit card or a debit card, which are ubiquitous in modern society. A ...
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WO/2003/063648A1 |
A magnifying and illuminating apparatus which can both be fitted onto existing lecterns or used as an integral part of an improved lectern and which combines a light source and a magnifying element in order to improve visibility of the v...
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WO/2003/062581A1 |
The invention is an anti-ballistic, wide angle, one-way door viewer. It provides a safe and secure method of viewing through a door or other opaque structure, without placing the eye closely to the eyepiece in the viewer. The eyepiece ha...
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WO/2003/029877A1 |
Apparatus for displaying an image comprises a liquid crystal display 12, a lenticular lens array 14 for directing different portions of the image in different directions and mirrors 16 for reflecting at least some of the directed image, ...
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WO2002025346A9 |
A label enlarging device (10) can be mounted on a rod or shaft (20) suitably mounted by brackets (22) affixed by any convenient means to store shelving (24). The shelving (24) is provided for storing and displaying merchandise to be sold...
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WO/2003/023486A2 |
The invention relates to a magnifying-glass lamp (1) comprising a magnifying glass (3) mounted in a retaining device (2) that is, for example, annular. The aim of the invention is to prevent the sunlight that falls on the magnifying glas...
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WO/2003/019267A1 |
A head worn instrument such as optical loupes is disclosed which includes an instrument such as a loupe assembly (30) having at least one eyepiece (32) and a head worn frame (12) generally configured in the nature of a pair of spectacles...
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