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7586679 Image transmission system from three rod lenses for rigid endoscopes  
The invention relates to an image transmission system for rigid endoscopes, having a central rod lens and two outer rod lenses, which are symmetrical in respect to one another in relation to a...
7561352 Eyepiece unit for endoscopes  
The invention relates to an eyepiece unit with an eyepiece mounted in an eyepiece frame and with a coupling element for inserting the eyepiece frame. According to a first embodiment, the eyepiece...
7530945 Endoscope and method for assembling components of an optical system  
An endoscope has a tubular shaft whose interior contains components, in particular lenses, spacers, diaphragms, prisms and filters of an optical system, said components being at least partially...
7515335 Endoscope relay lens  
A relay set ( 4, 4 ′) for the optical system of a rigid endoscope, the optical system including an objective ( 1 ) at the distal end, an ocular ( 5 ) at the proximal end and between them a relay...
7372079 Surface light emitter, display apparatus and light control member  
To improve the front brightness of the light emitted from a surface light emitter having a surface light emitting device. In the surface light emitter to which a light control sheet having...
7241027 Illumination system providing light of Gaussian distribution, projection system, and method of forming color image  
An illumination system includes a light source, first and second cylindrical lens arrays, and a relay lens. The first cylindrical lens array includes a plurality of cylindrical lens cells which...
7230756 Integrated optical system for endoscopes and the like  
Optical systems for endoscopes, borescopes, dental scopes, and the like which are characterized by having three groups of lenses of positive optical power and an external entrance pupil. Typically,...
7160248 Optical device for viewing of cavernous and/or inaccessible spaces  
An optical device for viewing an object at a range of working distances. The device comprises a slender tube of a certain length and having a distal end and a proximal end. The device further...
7002741 Image transmission system for endoscopes and method of producing a rod lens  
The invention relates to an image transmission system for endoscopes and similar viewing tubes with at least one rod lens and at least one additional lens system. In order to produce an image...
6804052 Rod lens system for rigid endoscopes  
A linear lens system for rigid endoscopes for the conversion of a distal intermediate image into a proximal intermediate image, is characterized by a first non-symmetrically arranged sequence of...
6796657 Projection type display apparatus  
A projection type display apparatus including an illumination optical system for emitting a light flux, a decomposition optical system for decomposing the light flux into color lights of red, green...
6639739 Optic for an endoscope/borescope having high resolution and narrow field of view  
An optic having optimized high spatial resolution, minimal nonlinear magnification distortion while at the same time having a limited chromatic focal shift or chromatic aberrations. The optic...
6490085 Symmetric anastigmatic endoscope relay system  
A symmetric relay system for endoscopes includes an optically-aligned pair of elongated concavo-convex rod-type lenses formed from crown glass, to the convex end surface of each of which a...
6490083 Microscopy method and apparatus  
An assembly for viewing cells inside tissue of a living organism. The assembly includes a confocal microscope having an objective for magnifying an image positioned at a focal plane of the...
6471640 Endoscope optics with device counteracting lens-element shifting  
An endoscopic optics fitted with lens elements and securing device to secure the element positions against shifting in case of being impacted. The securing device is a circumferentially expansible...
6459530 Small-sized variable magnification optical system  
A variable magnification optical system includes at least three optical units which are a first moving optical unit, a fixed optical unit and a second moving optical unit. The three optical units...
6411435 Monocular viewer and recorder  
A refocusing device for an optical image display consisting of back-to-back optical eyepieces and other optical elements that creates at least one additional displaced optical image and permits...
6398723 Endoscope having an immobilization system for components of an inner optical system  
An endoscope has a tubular shaft in whose interior is arranged at least one component of an optical system. At least one support element made from a shrinkable material surrounds at least partially...
6327096 Set of lens system  
A set of lens systems consisting of a plurality of different kinds of lens systems each comprising a radial type gradient index lens element(s), wherein the radial type gradient index lens elements...
6301043 Endoscope with at least one reversal system with a non-homogeneous refraction index  
An endoscope having a distally disposed lens and an optical transmission system which transmits the image of the lens to the proximal end of the endoscope is provided. The transmission system...
6236505 Binoculars  
A binocular includes a hood, an eyepiece lens panel, and an objective lens panel. The hood has top, left side, and right side portions that are integrally formed. The left and right side portions...
6163401 Optical system for non-flexible endoscopes  
A relay lens system used in an observation optical system which is to be disposed in an insert section is disclosed. The relay lens system comprises a plurality of relay lens units at least one of...
6163400 Variable magnification optical system and image pickup apparatus using the same  
A variable magnification optical system comprising four optical units each having a reflecting surface inclined with respect to a reference axis ray which is a ray passing from an aperture center...
6152872 Relay lens assembly for a disposable arthroscope  
A disposable rigid arthroscope having an inclined angle of view includes a frame member, an outer tube member extending distally from the frame member, an inner lens tube member eccentrically...
6055099 Optical interconnect  
An optical interconnect is formed form a series of coaxially aligned lenses. The lenses are spaced apart along a planar substrate and form repeated images of an optical array at the input to the...
5995698 Photonic television system with waveguide containing alternating concave and convex lenses  
A photonic television system for propagating an image of light, in the form of its original three dimensional photonic makeup, through an airless, light proof, wave guide structure, utilizing a...
5959772 Relay variable power optical system and a microscope equipped with the optical system  
The present invention provides a relay variable power optical system in a simple structure which is capable of suppressing a change of the position of the exit pupil on varying the power. To this...
5900971 Optical viewing device  
A low cost optical viewing device includes an objective lens section, a relay lens section and an eye piece section. The relay lens section is devoid of glass rods and includes a minimal number of...
5888193 Endoscope with curved optical axis  
An endoscope has an elongated sheath that follows a curved path. The sheath houses a plurality of relay lens sets designed to have a maximum usable field of view that is greater than the size of an...
5861987 Stereoscopic-vision endoscope offering a large angle of introversion and a necessary and sufficient sense of three-dimensionality  
A stereoscopic-vision endoscope of the present invention comprises a tubular elongated insertional part, an objective optical system situated in the insertional part, a relay optical system...
5805345 Image transmission optical system  
An image transmission optical system comprising a relay lens system for a single image relaying cycle which has a magnification of approximately 1× and comprises at least one radial gradient-index...
5731916 Image Transmitting optical system  
An image transmitting optical system comprising at least two bar-shaped lens components and constructed to have a numerical aperture enlarged by reserving an adequate space between an image of...
5701200 Monolithic relay lens system particularly suited for use in an endoscope  
A monolithic relay lens system for an endoscope is provided and includes a plurality of alternating individual polymeric lens elements bonded together with optical cement lenses of predetermined...
5684629 Optical system for endoscope  
A relay lens system to be incorporated in an endoscopic optical assembly is provided. The relay lens system includes at least one relay lens module for relaying an image between successive image...
5680249 Optical system for camera  
An optical system for a compound camera includes an equivalent image plane provided at a position substantially optically equivalent to an image plane of the photographing lens system. A condenser...
5625488 Telecentric relay lens system  
A telecentric relay lens system is provided with field lenses in the vicinity of an object and an image, respectively, at both sides of a centrally arranged lens member. In order to produce...
5601525 Hard-type endoscope apparatus  
A hard-type endoscope apparatus equipped with an inserting portion, a plurality of lenses inserted in the insertion portion, and a lens-barrel holding the lenses, includes a spacer pipe provided in...
5568312 Relay lens system for endoscope  
A relay lens system for an endoscope is provided and includes three axially aligned cylindrical lens pairs, each lens pair having two substantially rod-like lenses. Each rod-like lens includes a...
5500523 Optical information transmitting device and method of manufacturing same  
An optical information transmitting device for transmitting information on a light beam emitted by a light source, includes an electronic circuit board, and an optical input/output port mounted on...
5461509 Modular optical relay lens system  
The present invention relates to a relay lens system, wherein all image aberrations are corrected. This permits modular use with no stand-alone lenses or lenses with great focal distance. The relay...
5457576 Negative Abbe number radial gradient index relay, method of making, and use of same  
Radial gradient index of refraction (GRIN) optical relays for overcorrecting axial chromatic aberration and a method for their manufacture are described. A relay including a radial GRIN rod in...
5444569 Collapsible terrestrial telescope  
A collapsible terrestrial telescope having a lens system which includes an objective lens and a terrestrial eyepiece, wherein the eyepiece includes an erecting lens group, and an eyepiece lens. The...
5430575 Image rotation device  
An optical rotation device with infinite depth of field for transmitting optical images along an optical axis and selectively rotating the image about the optical axis, while preserving all of the...
5396366 Endoscope apparatus  
An endoscope is disclosed which is designed to transmit light to the area under observation and allows the light to make contact with the image plane, without the need of a fiber optic bundle. The...
5369525 Ring lens assembly for an optical viewing device  
A ring lens assembly for an optical viewing device is presented. The ring lens assembly includes a ring shaped lens adapted for mounting at the end of an optical viewing device for viewing a remote...
5309541 Flexible light conduit  
A flexible light conduit which preserves the coherence of a transmitted beam. Several conduit elements having optical elements mounted inside each one are connected together to form a chain. Each...
5305142 Replacement assembly for an image intensifier tube  
The present invention is an image intensifier assembly that includes a Generation III image intensifier tube and an inverter lens arrangement, such that the present invention image intensifier...
5291334 Micro-lens panoramic imager  
A panoramic imaging system is formed from select configurations of micro-optic multiplets (MOM) comprised of two microlens modules (MLM). The MLMs themselves are formed from arrays of microlenses....
5280555 Visual accident prevention system  
The visual accident prevention system relates to accident prevention through the use of a lens system, a fiberoptic cable system and a display device system. A lens system is placed on each side of...
5270859 Optical instrument with micro-lenses  
A variety of optical systems can be formed from select configurations of micro-optic multiplets (MOM) comprised of two or more microlens modules (MLM). The MLMs themselves are formed from planar...
Matches 1 - 50 out of 97 1 2 >