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Matches 451 - 500 out of 4,064

Document Document Title
WO/2002/069014A1
An optical pickup-use object lens (15) having a numerical aperture of at least 0.8, for correcting light, within a wavelength range of several nm based on up to 420 nm, for chromatic aberration at an image point on the optical axis. The ...  
WO/2002/067038A1
The invention relates to a high aperture objective, consisting of a first lens (L1) with positive refractive power (f1) and a second lens (L2) with negative refractive power (f2), wherein the focal depth ratio between both lenses lies in...  
WO/2002/050595A2
The invention relates to a projection lens that is composed of nine lenses with bilateral air-glass surfaces. The aim of the invention is to provide a lens or a series of lenses that guarantee the most effective light distribution across...  
WO/2002/044791A1
A lens assembly is disclosed which is suitable for producing focused and defocused images of a sample for creating phase images or for Z-stacker applications in which different planes within a sample are to be imaged. The assembly includ...  
WO/2002/033700A2
An objective lens for recording and/or reproducing an optical information recording medium, comprises a first lens having a positive refractive power; and a second lens having a positive refractive power; wherein the first lens and the s...  
WO/2002/027377A1
An imaging unit having an imaging lens capable of reducing the size and thickness of the entire lens, comprising a diaphragm (11), a convex lens (22) as the imaging lens, and a flat plate (13) equivalent to the face plate of a CCD (14) d...  
WO/2002/008685A2
Range estimates are made using a passive technique. Light is focussed and then split into multiple beams. These beams are projected onto multiple image sensors (10a-g), each of which is located at a different optical path from the focuss...  
WO/2001/031563A1
An objective lens system (2), particularly for a fingerprint reader apparatus, said lens system (2) comprising a first lens (8) formed as a condensing lens guiding light beams arriving from an object generally telecentrically, an apertur...  
WO/2001/006295A1
A luminous flux, from one conjugate surface (A), having an opening angle of at least 10° sequentially passes through a first optical system (30) having a luminous flux convergent action in the vicinity of its reference axis and a second...  
WO2000037982A3
In a lens system for focusing a divergent beam (7) in a small spot (18) and comprising a collimator lens (9) and an objective lens (10), the collimator lens is composed of a positive plastics lens element (31) and a negative glass lens e...  
WO/2000/037982A2
In a lens system for focusing a divergent beam (7) in a small spot (18) and comprising a collimator lens (9) and an objective lens (10), the collimator lens is composed of a positive plastics lens element (31) and a negative glass lens e...  
WO/1999/067662A1
Six-component projection lens systems (13) for use in CRT projection televisions (10) are provided. From the screen side, the systems preferably have a +-+++- configuration. To provide an improved overall modulation transfer function acr...  
WO/1999/063379A1
Objective lenses employing three lens units (U1, U2, U3) having a negative (or weak positive), positive, negative configuration are disclosed. The lenses have a total field coverage of at least 50 degrees with a relative aperture of less...  
WO1999018467A9
A project zoom les system is used in imaging and non-imaging modes for entertainment and architectural illumination, providing 8:1 zoom ratio in an imaging mode and 20:1 zoom ratio in a non-imaging mode. When coupled with a variable aper...  
WO/1999/018467A1
A project zoom les system is used in imaging and non-imaging modes for entertainment and architectural illumination, providing 8:1 zoom ratio in an imaging mode and 20:1 zoom ratio in a non-imaging mode. When coupled with a variable aper...  
WO/1999/018466A1
The spherical aberration of an optical beam is determined by focusing the beam, and dividing its cross section in at least two concentric zones (50, 51). The sub-beams passing through the zones are focused each on a focus-detection syste...  
WO/1999/012067A1
The focal length of an objective lens system is substantially equal at two wavelengths: one within the visible spectrum and one within an eyesafe IR spectrum centered about 1.54$g(m)m; the lens is essentially achromatic throughout the en...  
WO/1999/003006A1
Projection lens systems for use in CRT projection televisions are provided. The lens systems include a negative lens unit (U4) which is associated with the CRT during use of the lens system and four lens elements (L1, L2, L3, CR) on the ...  
WO/1998/023988A1
A lens system for an electronic system has two lenses. The first lens (S1/S2) has a negative power and the second lens (S4/S5 or S5/S6) has a positive power and is spaced from the first lens (S1/S2) by a distance of at least a quarter of...  
WO1998007666A3
PCT No. PCT/EP97/04468 Sec. 371 Date Apr. 6, 1998 Sec. 102(e) Date Apr. 6, 1998 PCT Filed Aug. 15, 1997 PCT Pub. No. WO98/07666 PCT Pub. Date Feb. 26, 1998An achromatic lens system, in particular for uses in the deep ultraviolet range be...  
WO/1998/007666A2
An achromatic product, in particular for uses in the DUV range below 350 nm wavelength, and therefore in particular for projection exposure systems for microlithography, combines quartz glass with lenses made of germanium dioxide glass (...  
WO/1997/041477A1
Projection lens systems (13) for use in projection televisions are provided. The systems are characterized by a screen side lens unit (U1) which: (1) has a weak optical power; (2) has a negative aspherical lens element composed of a high...  
WO/1997/041461A1
A projection lens for use with a pixelized panel (LCD) is provided. The lens has two positive lens units (U1, U2) with an aperture stop between them. The optical powers of each of the units are such that f1 is substantially shorter than ...  
WO/1997/001786A1
A Cooke triplet projection lens for use in overhead projectors comprises two outer positive elements of an ophthalmic crown glass and one inner negative element of a light flint glass. The crown glass has a refractive index of roughly 1....  
WO/1996/039609A1
The invention relates generally to interferometers (5), and more specifically to techniques for stabilizing the alignment in a rapid scan Michelson interferometer (5) used in a Fourier transform spectrometer. Alignment circuitry and cali...  
WO/1995/035521A1
An extreme wide angle, very large aperture, very compact, solar blind, UV imaging lens system. The lens system (100, 200, 300, 400) has a fused silica polyvinyl alcohol glass color filter (10, 20, 28, 30), a lens made of fused silica (40...  
WO/1995/018393A1
A hybrid refractive and diffractive achromatic lens (10, 20, 30) suited for single-use or inexpensive single-lens cameras (100) operating in visible spectral range. The lens comprises a body of optically transmissive material having an i...  
WO/1995/018392A1
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 T at low speed V where V < 1.2 mm/minute; and cutting the surface with the cutting tip T.  
WO/1995/001581A1
A compact objective lens system (100; 200) with a diaphragm ST arranged behind the lens system suitable for use in very compact photographic cameras. The objective lens comprises a plurality of components (L1; L2; L3; and L1'; L2'; L3a';...  
WO/1994/015143A1
The invention concerns a lighting system for spotlights, for automobile headlights, for medical and industrial spotlights. It consists of the light source (1), particularly the halogen light bulb, auxiliary mirror (2), the main mirror (3...  
WO/1993/020470A1
A lens system for a folding reflex camera is provided. The system includes: (a) a first group on the object side of the system's stop which (i) has a positive dioptric power, (ii) includes an aspheric surface, and (iii) has a concave sur...  
WO/1992/010773A1
An apochromatic relay system suitable for use in a high definition telecine apparatus comprising two groups of lens components with approximate symmetry about an aperture stop, as in a basic double gauss configuration plus one or two add...  
WO/1992/010774A1
The present invention relates to an optical element and catadioptric optical systems using the optical element. The optical element has a spherical surface with a reflective layer formed on at least a portion of the surface, and is forme...  
WO1991001012A3  
WO/1991/001012A2
A monolithic double-axial gradient lens (30) is provided. The lens has an optic axis and three sections perpendicular to the optic axis: a first section (34) having a first graded index of refraction profile and having an outer surface, ...  
WO/1989/000710A1
In order to reduce the critical thickness and/or the variation in the marginal thickness around the periphery of a spectacle lens with astigmatic effect, the refractive index varies at least along the critical main section so that at lea...  
WO/1987/002146A1
Method of manufacturing a gradient index lens (16) or (36) having a refractive index which can be expressed as a function of position. In order that a gradient index lens (16) or (36) having extremely low aberrations can be manufacture e...  
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 ...  
JP6623301B2
The invention relates to a multifocal lens (1) with a refractive focus (Fr) and with a diffractive structure (5) which, in the radial direction (r) of the lens (1), plotted across the squared radius (r2), has a periodic profile (6, 7, 8,...  
JP6416070B2
An imaging lens consists of three lenses of, in order from an object side, a first lens having a biconcave shape, and an object-side surface of which is aspherical, a second lens having negative refractive power and a third lens having p...  
JP2018531435A
The present invention is a refraction focus (F).rAbout a multifocal lens which has diffraction structure (5), this structure is a radial direction (r) of a lens (1), and is the square (r) of a radius.2 about -- when it plots, it has a pe...  
JP2018120731A
To provide a vehicular lighting fixture and the like capable of suppressing light which cannot be controlled emitting from a projection lens surface caused by internal reflection on a non-optical surface.A vehicular lighting fixture 10 i...  
JP2018072606A
To provide a variable magnification optical system that attains low costs as maintaining a sufficient optical performance, and is excellent in temperature characteristic, and to provide an imaging device that is equipped with the variabl...  
JP2017514179A
[Means for Solution] The present invention provides an optical image pick-up lens assembly object which contains in the picture side in order the 1st aspheric surface positive lens element and the 2nd aspheric surface negative lens eleme...  
JP2017074456A
To provide aspheric optical lenses (e.g., intraocular lenses and contact lenses).The intraocular lens includes a body portion for defining an anterior optical surface and an opposing posterior optical surface. The anterior optical surfac...  
JP2017067837A
To provide an image capturing lens and an image capturing device having the same, which offer a large ratio of a maximum image height to a focal length of an entire system and high imaging performance from a center view angle to a periph...  
JP5958491B2  
JP5603326B2
An aspheric toric intraocular lens (IOL) having toricity and asphericity in a single lens. The toricity and asphericity may be provided on separate surfaces, such as an anterior surface and a posterior surface, or the toricity and aspher...  
JP2014174325A
To provide an imaging optical system unit, an imaging device and a digital device that reduce color shading, while attaining miniaturization and reduction in costs, and enable reduction in intensity of unwanted light arising from an infr...  
JP5518755B2
A variable astigmatic focal beam spot is formed using lasers with an anamorphic beam delivery system. The variable astigmatic focal beam spot can be used for cutting applications, for example, to scribe semiconductor wafers such as light...  

Matches 451 - 500 out of 4,064