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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/2004/044638A1 |
In a zoom lens (30) comprising, from the object side to the image side, a front lens group (12) and a controllable lens group (24), the controllable lens group comprises two lens elements (25, 26) having different dispersions and being m...
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WO/2004/040335A2 |
This disclosure describes the design and construction of high-precision off-axis optical imaging systems. The disclosure also describes the design and construction of high-precision mounting structures for rigidly holding optical element...
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WO/2004/038478A1 |
An imaging lens (100) comprising, arranged sequentially from the object side, a positive-meniscus first lens (1) with its convex plane facing the object side, a negative-power-meniscus second lens (2), and a positive-power third lens (3)...
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WO/2004/034122A2 |
The invention concerns an optical device (12) comprising a front surface located on the side of the sample to be observed and a rear surface oriented towards the means for acquiring (18, 19) an image or a user. It further comprises a com...
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WO/2004/029676A1 |
A glass plano-convex lens (2a, 2c) in which one refractive surface is a flat face (21) and the other refractive surface is a convex face (22) is provided with an IR blocking dielectric multilayer film (3) for blocking infrared rays on on...
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WO2004019077A9 |
An optical system includes multiple cubic crystalline optical elements and one or more uniaxial birefringent elements in which the crystal lattices of the cubic crystalline optical elements are oriented with respect to each other to redu...
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WO/2004/010196A1 |
A lens device comprising, arranged sequentially from a subject side, a meniscus first lens (1) convexed toward the subject side, a second lens (2) facing the concave of the first lens (1), a negative third lens (3) having a concave facin...
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WO/2004/010195A1 |
A meniscus imaging lens (1) comprises a first concave plane (1a) positioned on a subject side, wherein Bf (back focus distance) is larger than f1 (focal distance of the entire lens system), nd (refractive index) is larger than 1.45, R1/f...
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WO/2003/104744A1 |
The invention relates to the study of the internal structure of objects with the aid of optical means. The inventive optical system for a device for delivering low coherent optical radiation is embodied in the form of at least two lens c...
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WO/2003/009040A1 |
Simple, inexpensive and durable multi-element lens systems are provided. These lens systems may be optically coupled to digital image-capturing devices, such as those used in digital cameras. Some lens systems of the present invention in...
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WO/2002/086875A1 |
An optical scanning device for scanning an information layer (104) of an optical record carrier (102) includes a radiation source (110) for generating a radiation beam (108) and a high-NA objective system (118) for converging the radiati...
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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 ...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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 ...
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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...
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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 (...
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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...
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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 ...
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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....
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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...
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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...
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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...
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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.
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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';...
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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...
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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...
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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...
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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...
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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, ...
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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...
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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...
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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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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,...
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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...
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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...
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JP2017514179A |
The present invention is an optical imaging lens set including a first aspherical positive lens element and a second aspherical negative lens element having a target side surface and an image side surface, respectively, in order from the...
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