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JP2004164609A |
To provide a universal input device usable on a variety of platforms, while providing a common user interface.The universal input device includes an image capturing unit for capturing an image in an area of an object over which the input...
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JP3531209B2 |
PURPOSE: To provide a short distance correction lens which is equipped with the vibrationproof function, small-sized and high in performance, and suitable for photographs, videos, etc. CONSTITUTION: The short distance correction lens equ...
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JP2004139035A |
To provide a lens with an IR cut-off filter whose cost can be reduced even when the lens with the IR cut-off filter used for a condenser lens, etc., of a miniature camera is made of glass and a method for manufacturing the same, and a mi...
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JP2004126588A |
To highly efficiently couple light from one optical fiber to the other optical fiber in an optical system.A pair of optical lenses comprises a first biconvex lens having two equivalent aspheric optical surfaces and a second biconvex opti...
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JP3521332B1 |
An imaging lens in which aberration is satisfactorily corrected, the optical length is short, and a sufficient back focus is secured. The imaging lens is constituted by arranging a first lens L1, an aperture diaphragm S1, a second lens L...
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JP3517854B2 |
To suppress the generation of astigmatic aberration and distortion aberration, to excellently compensate spherical aberration and making a lens a wide angle by composing the lens of two-group three-lenses and satisfying a specified condi...
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JP2004109591A |
To not only make a single focal lens compact and low-cost but also satisfactorily correct various aberrations by constituting the single focal lens of two positive lenses which have aspherical surfaces and have positive optical powers an...
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JP3513253B2 |
PURPOSE: To provide a wide-angle lens system which obtains high resolution and a high contrast from long-distance photography-to short-distance photography. CONSTITUTION: This wide-angle lens system is constituted by arraying a 1st negat...
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JP3514318B2 |
PURPOSE: To keep aberrations small and to make the position of exit pupils far from an image-formation surface by arranging a diaphragm on the object side of a lens group having positive refracting power as a whole, making a lens on a si...
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JP3511392B2 |
PURPOSE: To realize an imaging lens that is long in back focus, able to reduce an incident angle of an incident beam of light into a solid camera element, bright and wide in a field angle, in addition to being possible for miniaturizatio...
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JP3508011B2 |
To obtain a compact projection lens whose back focus is long, whose whole length is short, which is provided with telecentric property and whose chromatic difference of magnification and distortion aberration are corrected. This projecti...
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JP3506391B2 |
PURPOSE: To realize an imaging lens by means of two lenses, which is long in a back focus, able to take a field angle relatively wider, bright and compact in size, in addition to making cost-down promotable by regulating the extent of va...
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JP2004077798A |
To provide a collimator lens such that an increase in time width of a "2nd higher harmonic" is suppressed when the problem of a chromatic aberration is solved between the "2nd higher harmonic" and a "basic wave" and a short-pulse light g...
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JP3504683B2 |
PURPOSE: To form refractive index distribution in a planar direction by fixing the photosensitive refractive index control agent in a transparent base material by irradiating the base material with laser beam having intensity distributio...
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JP3505114B2 |
To provide a glass-made objective lens for excellently reproducing a DVD and a CD. At least one surface of the glass-made single lens is concentrically divided into a 1st aspherical surface area 104 including an optical axis, a 2nd asphe...
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JP3505099B2 |
To obtain an inner focus type middle telephotographic lens where aberration is completely compensated and which is constituted of small number of lenses by constituting the lens of a 1st positive lens group, a 2nd negative lens group and...
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JP2004061680A |
To provide an inner focus type photographic lens which enables photography from an infinite distance to nonmagnification and speedy focusing from an infinite-distance object to a short-distance object and excellently corrects a variation...
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JP3500745B2 |
PURPOSE: To compensate aberrations 'while ensuring a wide exposure region and a large numerical aperture and making both sides telecentric by specifying the refractive powers, focal distances and a composite focal distance of plural lens...
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JP2004053813A |
To obtain a lens system which is small in size and light in weight with number of lens elements of 4, is low in cost, is ≥50° in angle of view, and further, has high resolution.The lens system consists, successively from a subject sid...
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JP2004053812A |
To provide a lens system which maintains desired optical performance and is made wide in angle of view for photographing and is made better in telecentric characteristics as well in the state of largely assuring a back focus distance.The...
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JP2004046022A |
To obtain a relay optical system which has a vibration-proofing function, is combined with a photographic lens system in an electronic camera etc., and sufficiently light and has high resolution.This relay optical system has a field lens...
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JP3495860B2 |
To excellently compensate the trapezoidal distortion, distortion aberration, and image plane tilt of a projection original image and project the image obliquely while making the whole optical system compact by making some lenses of the o...
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JP2004012825A |
To easily and well perform the adjustment to correct the deviation of an imaging magnification and the adjustment of the imaging magnification according to the elongation and contraction of a substrate while well maintaining aberrations ...
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JP3485503B2 |
To provide an image pickup lens which is constituted so that desired optical performance can be maintained, a back focus distance can be sufficiently secured, a high telecentric property can be secured and respective aberrations can be e...
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JP3485685B2 |
To provide a graded index type signal lens composed of one lens and having high performance at a low cost by making the lens has a constitution having a specified distribution of refractive index and satisfying a specified condition. Thi...
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JP3486541B2 |
To obtain an inner focusing optical system provided with vibration- proof where a still picture is obtained by optically correcting the blurring of a photographic image when the optical system is vibrated. This optical system is provided...
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JP3478643B2 |
To provide a photographic lens composed of six lenses as a whole, having a long back focal length and high optical performance as a whole screen. This lens is composed, in order from the object side, of a first negative meniscus lens G1 ...
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JP3476909B2 |
PURPOSE: To provide the large aperture telephoto lens which enables photography from infinite distance to a point about -1/2 magnification by arranging a movable lens group in a lens system which is subordinate to a main lens system and ...
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JP3470539B2 |
To constitute a lens system with a small number of lenses and to suppress variation in lightness between the center part and peripheral part of an image plane at the time of application to a camera equipped with a solid image pickup elem...
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JP2003329922A |
To provide a bright, compact and inexpensive image pickup lens system which is adaptable to an angle of view being about 30°, in which the incident angle on an image pickup device is made small, especially whose entire length is short a...
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JP3467155B2 |
To obtain an image pickup lens having simple constitution and fine optical performance by arranging a brightness stop for restricting a beam in the vicinity of the object side face of a radial type GRIN lens having positive refractive po...
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JP3452919B1 |
A lens for image pickup is provided in which various aberrations are corrected satisfactorily, the optical length is at maximum approximately 6 mm, and moreover a sufficient back focus is secured. This lens for image pickup comprises a f...
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JP3454390B2 |
PURPOSE: To excellently compensate various aberrations, specially distortion aberration even though both sides of the system is made to be telecentric while ensuring a wide exposing region and a large numerical aperture and making the sy...
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JP3444453B2 |
PURPOSE: To make an optical system compact, to improve an assembling characteristic, to reduce a cost and to enhance imaging performance by adopting prefixed diaphragm two-element lens constitution and specifying the conditions for const...
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JP3444454B2 |
PURPOSE: To excellently compensate various aberrations and to provide the brightness compared with a conventional wide-angle lens while suppressing a cost required for molding the lenses as little as possible by composing the wide-angle ...
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JP3442744B2 |
To provide a projection lens which is applied to projectors of an off-axis projection system and with which wide angle projection is attained and to provide a projection display device to which a lens thereof is mounted. A wide angle pro...
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JP2003241081A |
To provide a short focal length lens of a short overall length which can be extremely improved in optical performance in spite of four-element lens configuration suitable for downsizing and cost reduction by forming a vitreous material o...
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JP2003241082A |
To make aberration correction sufficiently good by four-element lens configuration capable of promoting downsizing and cost reduction by forming a third lens of a positive lens using a vitreous material of low dispersion and arranging an...
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JP3435359B2 |
To obtain an achromatic lens system which does not use a fluorite being a lens system which excellently compensates chromatic aberration by near infrared rays especially by constituting the lens system of a negative single lens, a positi...
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JP3435873B2 |
PURPOSE: To provide a short distance correcting lens suitable for photographic and video use, etc. CONSTITUTION: In a short distance correcting lens comprising, in order from the object side, a first lens group G1 having a positive refra...
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JP3429599B2 |
PURPOSE: To provide a photographic lens device which is capable of assuring a sufficient back focus and the exit pupil position from an imaging plane and has high performance. CONSTITUTION: A stop 2, a first lens 6, a second lens 8, a th...
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JP3429562B2 |
PURPOSE: To compensate aberrations and curvature of field while keeping the balance, to make the lens comparatively bright am to take close-up photography by comprising a first to a third lens groups having specified refractive powers an...
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JP3427461B2 |
PURPOSE: To obtain the image re-formation optical system which has superior optical performance although the overall length is short and the constitution is relatively simple by providing a front and a rear group which are composed of 1s...
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JP3424030B2 |
To obtain a compact photographic lens having high resolution and composed of small number of lenses. This photogrpahic lens is composed of an aperture disphragm which is arranged nearest to an object side, and a 1st lens group, a 2nd len...
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JP3423625B2 |
To provide a lens whose effective f-number is 3.5 and whose maximum half viewing angle is about 16° and which has high optical performance over an entire image plane by making it satisfy a specified conditional expression. This lens is ...
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JP3417273B2 |
To accomplish an inexpensive variable power optical system with less transverse chromatic aberration by using a specified aspherical lens and an abnormality dispersing glass for a projection variable power optical system equipped with th...
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JP3415950B2 |
PURPOSE: To compensate sagittal coma aberration and other aberrations by satisfying a specified condition in a photographic lens composed of a front group composed of, in order from the object side, a first, a second and a third lenses a...
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JP3411565B1 |
A pickup lens is provided in which various aberrations are satisfactorily corrected, which can be manufactured at low cost, and which has an optical length of 10 mm or less. This pickup lens is configured by arranging, in order from the ...
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JP2003149549A |
To provide an image pickup lens suitable for a non-adjusting optical system and capable of restraining the change of back focus distanced to the minimum even in the case of changing the thickness of the center of the lens.A lens main bod...
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JP3406862B2 |
To obtain a rear focus type middle-range telephoto lens whose F number is ≤2.8, the angle of view is about 26° by which the mechanism of a lens barrel can be simplified, which is adequate to auto-focusing, and whose performance is hig...
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