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Patent Searching and Data


Matches 901 - 950 out of 3,785

Document Document Title
JPH11183796A
To provide an image pickup optical system having the small fluctuation of aberration to a photographing distance by composing this system of four groups composed of a first and fourth groups of meniscus lenses having a positive and negat...  
JPH11183792A
To provide sufficient back focus and peripheral light quantity and to reduce coma flare, the curvature of field and chromatic aberration to obtain high image forming performance. This lens is constituted of 1st and 2nd lenses L1 and L2 h...  
JPH11174345A
To obtain a light and compact wide visual field ocular which is constituted of three groups having positive, negative and positive refractive indexes in order from an object side, where the 1st lens group is constituted of a positive men...  
JP2909765B2  
JPH11167061A
To provide a photographing optical system capable of improving chromatic aberration and obtaining high image quality, reduced in the number of composing lenses, small in size, light in weight, and low in cost. This photographing optical ...  
JPH11160615A
To provide a large-diameter lens obtained by excellently correcting spherical aberration and various aberration even in the case a large diameter lens with a F-number 1.2. This lens is constituted of a front-group lens having positive re...  
JP2595552Y2  
JP2895150B2  
JPH11133312A
To make an optical system have the function of a telescope to observe an infinite object and also the function of a microscope to enlarge and observe a minute object in a short distance by providing three lens groups and moving 1st and 2...  
JP2893046B2  
JPH11125767A
To obtain the small-sized, low-cost photographic lens system which has high performance, long back focus, and excellent telecentricity. This system is equipped with a 1st lens group 10 with negative refracting power, a stop S, and a 2nd ...  
JPH11119092A
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...  
JPH11120810A
To emit the illuminating light in the front direction in a central part and in the central part direction on the side surface side and avoid reduction in a luminance level on the side surface side through effective use of emitting light ...  
JPH11119091A
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...  
JP2887004B2  
JPH11109221A
To effectively compensate axial chromatic aberration in a low magnification lens and to attain high performance in a wide wavelength area by specifying a distance between lenses, the radius of curvature of a concave surface and balance b...  
JPH11109222A
To excellently compensate aberration by providing a 2nd diffraction surface arranged nearer to an image surface side than a 1st diffraction surface and having negative refractive power and constituting the respective diffraction surfaces...  
JPH11101938A
To provide a photographic lens which has relatively little fluctuation in aberration associated with change in magnification in a case of focusing according to ranges of an object, and is capable of providing an excellent focusing perfor...  
JPH11101937A
To easily cope with a change in the image pickup size, etc., of a video camera to be used by disposing a front group consisting of a convex lens group and a rear group consisting of a convex lens group in this order from a specimen side ...  
JP2881744B2  
JP2881926B2  
JPH1191825A
To avoid the phenomenon of a warpage of a flange part by a method wherein the surface layer and the intermediate layer of a lid body comprising the surface layer, the intermediate layer and a seal layer are made of a biaxially drawn poly...  
JP2879458B2  
JPH1188813A
To provide an electronic camera capable of executing more efficient printing and saving power by recognizing a state of a camera driving power supply and limiting a printing function in accordance with the recognized state. The electroni...  
JPH1183614A
To provide a marine acoustic tomography data analyzer which clarifies the signal peak and the time of a reference received wave signal data formed after accumulation, enables tracking each signal peak more accurately and simply, and can ...  
JP11084230A
To provide a wide-angle lend small in size, light in weight, low in cost and also compensative in various aberrations with simple constitution such as four groups and five lenses. This lens is composed of four groups and five lenses, tha...  
JP11084229A
To obtain a single focus lens small in size, reduced in the number of lenses, low in cost and excellent in performance while securing sufficient back focus by using a diffraction optical element. This single focus lens is constituted of ...  
JPH1183613A
To enable grasping a physical sound source signal from mathematically independent signals, by rearranging singular values operated from a mutual spectrum matrix constituted of an input signal which is the nearest to a selected sound sour...  
JP2873912B2  
JPH1177007A
To provide an anaerobic digestion method of organic waste in which impurities are separated and removed by a simple means without using a specific device. In the method for anaerobically digesting organic waste 1 containing hardly biodeg...  
JPH1179007A
To shorten the longitudinal length of each crawler and prevent the vehicle body from sinking in the ground. This semi-crawler type tractor has steerable front wheels and crawlers 4 extended in a substantial triangle including the vertex ...  
JP2871021B2  
JPH1167716A
To process a three-dimensional structure with precision of the μm order on a substrate which contains silicon oxide as the main component. A silicon oxide film 10 having an opening with a width a as well as a photoresist layer 12 as an ...  
JP2867375B2  
JP11064727A
To compose a lens system of lenses having shape easy in machining, to restrain distortion aberration and chromatic aberration to the comparatively minimum and to obtain excellent optical performance by arranging a lens group having negat...  
JPH1151880A
To provide a moisture containing amount measuring unit capable of highly precisely measuring an amount of moisture containing in an inner lining refractory stuck on the surface of the iron plate of an iron melting vessel. With regard to ...  
JPH1152227A
To provide a photographing lens having a sufficient back focas and telecentric property and obtaining good image forming performance by a small number of component lenses. This photographing lens is composed and arrayed in order from an ...  
JPH1155310A
To quickly and accurately retransmit an electronic mail by storing the received electronic mail and also the address of the mail originator and transmitting automatically an electronic mail to ask the mail originator to retransmit the st...  
JP2860176B2  
JP2859418B2  
JP11044839A
To obtain a rear diaphragm type photographing lens having good optical performance over the entire image plane while realizing the miniaturization and the wide angle of an entire lens system. This lens is provided with a 1st lens L1 bein...  
JP11044801A
To provide a photographing lens capable of realizing the reduction of cost without deteriorating lens performance. This photographing lens 40 has positive refractive power and is positioned and held on the object side of a diaphragm aper...  
JPH1144007A
To simply, quickly and surely seal a joint between precast concrete floor boards at a low construction cost in comparison with a conventional method as a leakage countermeasure of the joint between precast concrete floor boards and to en...  
JPH1134412A
To provide a printing apparatus capable of well cooling a printed object to be printed even when the size of a cooling platen is not enlarged. A temp. sensor 38 as a detection means for detecting the temp. of a cooling platen 23 is provi...  
JPH1134420A
To dispense with ensuring of an excessive peripheral space for the replacement of a ribbon cartridge by effectively utilizing the upper space of a printer and to easily perform ribbon cartridge replacing work. A printer wherein a ribbon ...  
JPH1128025A
To provide the subject plastic honeycomb panel capable of spreading a natural lawn grass on a veranda of house or a rooftop of a building by a simple work, by boring holes of a specific size at the tips of space parts on one side of the ...  
JP11023959A
To obtain a compact photographing lens whose front lens diameter is small and which has high optical performance over an entire image plane. A positive meniscus 1st lens L1 whose convex surface is faced to an object, a negative 2nd lens ...  
JPH1116614A
To provide a wiring member that facilitates connecting work without using a special tool in spite of having press-contact type terminal strips. A terminal board 22 of a housing 1 is provided with a press- contact type terminal strips 32....  
JPH1116613A
To provide a connecting part that is electrically stable and has excellent mechanical characteristics by placing a split band conductor and an insulating film in a slot with one surface side held down by a press-in terminal. On one face ...  
JP2846821B2  

Matches 901 - 950 out of 3,785