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WO/1999/026098A1 |
An optical magnifier for viewing an object is provided. The optical magnifier includes a housing that defines a light path between a first opening and a second opening. A viewing device is mounted at the second opening of the housing. Th...
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WO/1999/022264A1 |
The invention relates to a microscope eyepiece with theoretically reduced astigmatism in a compensating optical system. The inventive eyepiece has 10x magnification, a sight field (SFZ) $m(F)25 and a Petzval sum (SP) of 0.014$m(F)SP$m(F)...
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WO/1999/003010A1 |
A portable viewing apparatus having a plurality of associated pairs of left and right optical modules, each pair of which can be selectively used to provide a user with a different viewing effect when viewing objects such as video monito...
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WO/1998/052085A1 |
The present invention is directed to an optical device and method for adjustably magnifying the visual displays on the screen of a computer monitor or the like, the invention comprising an adjustable arm for supporting at least one magni...
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WO/1998/031605A1 |
A package (10) is disclosed for a brush, in particular toothbrush, with a bristle carrier and a number of bristles mounted thereon. The package has a wrap (13) that at least partially surrounds the brush and is designed with at least som...
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WO/1998/021612A1 |
An optical system for alternative or simultaneous direction of light from two scenes to the eye of a viewer comprising (a) a first lens (42) having a first focal length; (b) a second lens (44) having a second focal length, the first and ...
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WO/1998/019435A2 |
The invention relates to a microdisplay system that utilizes a small high resolution active matrix liquid crystal display with an illumination system and a magnifying optical system to provide a display for a portable communication devic...
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WO/1997/035222A1 |
A parallax reduction device (2) configured to be coupled to a pair of surgical telescopes. The surgical telescopes include two lenses each having holes therethrough which receive magnifying elements. The parallax reduction device include...
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WO/1997/024638A1 |
A portable viewing apparatus (11) having a plurality of associated pairs of left and right optical modules (13L and 13R), each pair of which can be selectively used to provide a user with a different viewing effect when viewing objects s...
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WO/1997/001123A2 |
A head gear display system incorporates a simple off-axis optical projection system employing a pair of lenses and an optical combiner for collimating a visual image onto an observer's eye.
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WO/1996/037730A1 |
A small, lightweight, high intensity illumination assembly (20) for use in dental and medical applications. The illumination assembly (20) includes attachment means (30) for removable attachment to headgear such as eyeglasses (302), face...
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WO/1996/028753A1 |
A lightweight night vision device (10) includes an image intensifier tube (30) for amplifying low intensity light to produce a visible image. A prism assembly (34) is positioned proximate to the image intensifier tube (30) to reinvert th...
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WO/1996/019746A2 |
A compact, virtual image electronic display system is provided for forming a compound magnified virtual image of a source object. The display system includes a microdisplay for producing the source object, a first reflective magnificatio...
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WO/1996/013695A1 |
A telescopic device comprises an eyepiece lens (6), an objective lens (7), a first plane mirror (1), a second plane mirror (2), a roof reflecting mirror (3). The first optical axis located along the first plane mirror (1) is parallel to ...
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WO/1996/013747A1 |
A device (10) for detecting loose stones in a jewelry setting includes a pedestal (34) against which a ring or other jewelry item is lightly held, and a vibrator (32) for causing vibration of the pedestal and hence of the jewelry item he...
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WO/1996/009566A1 |
The invention concerns a magnifying visual aid to be used as a magnifying glass. The magnifying glass according to the invention comprises an automatic and/or manual focusing arrangement, a device for manually adjusting the enlargement r...
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WO/1996/005532A1 |
A head mounted display for use in virtual reality applications and typically in the form of a slim visor is provided with binocular magnifying optics which permit the binocular viewing of an image displayed by a single miniature LCD vide...
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WO/1995/004950A1 |
In order to achieve the largest possible visual field and the highest possible enlargement factor in an optical reading device (1) with a rod-shaped lens body (2), the curvature surface or all curvature surfaces (4, 6; 26, 28) of the len...
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WO/1994/029680A1 |
A device for assisting in measuring or visually estimating the weight of precious stones, comprising an open ended (16) tubular body (8) which is of suitable internal diameter to fit slidably over the body of a conventional jeweller's "l...
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WO/1994/020873A1 |
Binoculars designed to provide a large aided static field of view are provided. The binoculars are characterized by S/D ratios of above 2.8, where S is the binoculars' aided static field of view calculated by multiplying the binoculars' ...
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WO/1994/006048A1 |
Optical magnifying apparatus comprises an objective lens (11) from which light is directed to a beam splitting mirror (12). A portion of the light passes through the beam splitting mirror to a first concave mirror (13) and is reflected b...
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WO/1993/016445A1 |
A credit card (10) includes an integral magnifying lens (24) positioned in the non-data area on the credit card for permitting magnification of the credit card transaction form at the point-of-sale. The placement of the lens assures that...
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WO/1993/012451A1 |
A magnified mirror assembly (1) has a frame (4), a mirror (3) disposed along an edge of the frame (4) and a centrally disposed magnifying lens (5) which provides magnification of a reflected image. Such a magnified mirror is particularly...
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WO/1993/011454A1 |
Optical loupes comprise a frame (12) supporting two optical devices (2) each of which has an ocular (3) and an objective (4). The frame has side arms or stems (24) and a bridge (not shown) enabling the frame to be worn like a pair of spe...
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WO/1992/022885A1 |
A magnifying viewer unfolds from a "case" configuration to manifest a support base (60) with ribs (62) defining with grooves (61a) in side walls (61) an arcuate support plane for a unit e.g. of polymer or polymer-coated card, preferably ...
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WO/1992/022843A1 |
A magnifier apparatus for use with a hand-held video display apparatus (12) which magnifier apparatus has a frame (22) with a magnifier lens (24), the frame (22) secured to a support (26), the support (26) releasably adapted to be secure...
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WO/1992/015039A1 |
A coaxial illuminator adapted for surgical coaxial illumination and viewing including an opaque housing (30) defining a longitudinal axis and having a tilted, anti-reflection coated window (34) located at one end of the housing (30). A b...
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WO/1992/001193A1 |
A portable, compact, battery-operated light apparatus (12) for use with a compact computer game (14) having an LCD video screen (16) for enhancing the visibility of the the LCD screen in use, which light apparatus comprises a body (24) w...
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WO/1991/017465A1 |
A lens system comprises two magnifiers and distance measuring means. With the distance measuring means the distance is measured of an object to be viewed. The focal distance of the magnifiers is automatically adapted to the measured obje...
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WO/1991/016649A1 |
An auxiliary image-observing device for use in a portable liquid crystal display system or the like having a liquid crystal display housed in a manner to be visually observed from the outside, comprising: a magnifying lens for magnifying...
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WO/1991/006025A1 |
A binocular surgical loupe (12, 14, 84, 86, 130, 132) which enhances the illumination of the viewed field while avoiding flare effects of illuminating light within the loupe optics. The binocular system utilizes circularly polarized illu...
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WO/1991/002193A1 |
A lamp for magnifying glasses comprises an annular housing (10) in which a magnifying glass (12) is housed. Grooves (16, 17) on the underside of the housing (10) are covered by a covering plate (15) of transparent material to form a chan...
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WO/1989/004503A1 |
A monocular comprises an elongated body in two parts (2, 3) at one end of which is fixed an eyepiece (1). At its other end, said body encloses two biconvex lenses (4, 4') of equal power arranged in grooves (5, 5'). The ratio of the dista...
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WO/1986/005281A1 |
The goggles (20, 120) include a pair of optical assemblies (40, 140) each having two intersecting optical paths, including a see-through path with a large field of view of a straight line of sight to the viewed object, and a folded path ...
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WO/1986/001908A1 |
A security viewer to be mounted through a non-transparent partition, e.g. a door (7), comprises a housing (1) which extends through the door. The housing includes an inlet aperture (8), a screen (13) and a lens system (9, 10, 11, 12). Th...
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WO/1984/002007A1 |
A clear, transparent, rigid plastic sheet is bent into an inverted U-shape to provide a top (40) supported by continuously transparent legs (42, 44). A fresnel lens (50), co-extensive with the top, is secured to the top or actually forme...
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WO/1983/003442A1 |
The device comprises a sight glass (3) embedded in the door (1), a semitransparent mirror (5) inclined behind the sight glass (3) and of which the semitransparent surface (6) is adjacent to the sight glass (3) and an optical receiver (7)...
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WO/1982/000899A1 |
This endoscopic system, which comprises a light guide forming a thick lens axially delimited by a proximal face and a distal face, is characterized in that it comprises, ahead the proximal face of the light guide (G), a focusing device (...
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WO/1981/002931A1 |
Protective shield device designed especially to enclose the working area of a cutting torch or nozzle, a welding set, a spray nozzle or like unit emitting radiation and gases, said cutting torch, nozzle or like unit, which works on a wor...
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JP7474124B2 |
An optical lens and a head-mounted display device are provided. The optical lens includes a first lens, a second lens, a third lens, and a fourth lens sequentially arranged from a light exit side to a light incident side. Refractive powe...
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JP7471453B2 |
An apparatus for projecting content displayed on a display, the apparatus may include a first array of first microlenses that comprise multiple first microlenses; a second array of second microlenses that is spaced apart from the first a...
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JP7462115B2 |
An optical system and a head mounted display are disclosed. The optical system comprises: a third lens(3), a second lens(2) and a first lens(1) arranged successively along a propagation direction of incident light. There are three Fresne...
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JP2024046544A |
An object of the present invention is to provide an observation optical system that allows observation with a wide apparent field of view while having good performance, and an optical device equipped with this observation optical system....
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JP7451269B2 |
To provide an ocular optical system which has sufficient space secured therein, satisfies a requirement of a wide angle of view, and is capable of sufficiently correcting for aberrations such as field curvature and astigmatism.An ocular ...
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JP7448932B2 |
To provide a sterilizing and virus inactivating apparatus that suppresses leakage of ultraviolet light from the apparatus, controls an air flow amount, reflects the ultra violet light to be attenuated with a light source housed in a ligh...
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JP3245779U |
An object of the present invention is to provide an observation scope that is foldable and easy to carry, and allows for stepwise adjustment of the distance between an object to be observed and a lens, thereby enabling a variety of obser...
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JP2024024637A |
The present invention provides a head-mounted display with high display quality. A head-mounted display 100 according to the present embodiment includes aspherical combiners 121L and 121R that are placed in front of a user and reflect di...
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JP7436699B2 |
An electronic view finder includes a display element that displays an image, and an eyepiece lens that is disposed on an eyepoint side of the display element and that is used for observing the image. The eyepiece lens consists of a first...
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JP7427430B2 |
To provide an observation optical system using two semi-transmission surfaces capable of miniaturizing while suppressing curvature of field when adjusting diopter.Th observation optical system allows a user to observe an optical image of...
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JP7425136B2 |
A magnifying device (100) with multiple magnifications including: an outer shell (10) forming a body of revolution with an axis of revolution (X-X) and having an inner cavity (5), a first lens (30) mounted at a first end (13) of said out...
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