Minolta Camera Kabushiki Kaisha

Canon Kabushiki Kaisha

Kabushiki Kaisha Komatsu Seisakusho

Minolta Camera Co., Ltd.

Yasuo Yamazaki

Takeshi Egawa

Kazuo Kimura

Toshiyuki Ogawa

Hideaki Ishino

Toshihiro Shoyama

Isamu Uchida

Hiroshi Takakusagi

Hiroshi Ueda

Toru Koizumi

Yuichiro Yamashita

Hiromu Mukai

Hideaki Takada

Shin Kikuchi

Masaru Fujimura

Yu Arishima

Tatsuya Ryoki

Shoji Kono

Toshio Kobori

Shinichiro Shimizu

Keiji Yamazaki

Takayoshi Miyamoto

Yoshio Kuramoto

Masao Fukuda

Taizo Kawaguchi

Katsuhiro Ise

Kyoichi Hara

Tetuyuki Tanimoto

A method of manufacturing an imaging apparatus includes: preparing a substrate comprising a wafer and a silicon layer arranged on the wafer, the wafer including a first semiconductor region made of single crystal silicon with an oxygen concentration not less than 2&#xd7;10atoms/cmand not greater than 4&#xd7;10atoms/cm, the silicon layer including a second semiconductor region made of single crystal silicon with an oxygen concentration lower than the oxygen concentration in the first semiconductor region; annealing the substrate in an atmosphere containing oxygen and setting the oxygen concentration in the second semiconductor region within the range not less than 2&#xd7;10atoms/cmand not greater than 4&#xd7;10atoms/cm; and forming a photoelectric conversion element in the second semiconductor region after the annealing.

Imaging apparatus, method of manufacturing the same, and camera

A solid-state imaging apparatus has a pixel array in which a plurality of pixels are arranged to form a plurality of rows and a plurality of columns, and a plurality of column signal lines are arranged, wherein each of the plurality of pixels includes a photoelectric converter including a first well formed in a semiconductor substrate and having a first conductivity type, and an impurity region arranged in the first well and having a second conductivity type different from the first conductivity type, and an in-pixel readout circuit which outputs, to the column signal line, a signal corresponding to charges generated in the photoelectric converter, the in-pixel readout circuit including a circuit element arranged in a second well having the first conductivity type, and wherein the first well and the second well are isolated by a semiconductor region having the second conductivity type.

Solid-state imaging apparatus having pixels with plural semiconductor regions

A method for manufacturing a solid state image pickup device including a first active region provided with a first conversion unit, a second active region provided with a second conversion unit, and a third active region adjoining the first and the second active regions with a field region therebetween and being provided with a pixel transistor, the method including the steps of ion-implanting first conductivity type impurity ions to form a semiconductor region serving as a potential barrier against the signal carriers at a predetermined depth in the third active region and ion-implanting second conductivity type impurity ions into the third active region with energy lower than the above-described ion-implantation energy.

Solid state image pickup device and method for manufacturing solid state image pickup device

A method of manufacturing a semiconductor device. The device includes a plurality of layers on a semiconductor substrate. The method includes the steps of dividing a pattern of at least one layer into a plurality of sub-patterns, and joining the divided sub-patterns to perform patterning. A layer that includes wiring substantially affects operation of the semiconductor device depending on a positional relationship to any other wiring. The patterning is performed by one-shot exposure using a single mask.

Method of manufacturing a semiconductor device

A method for manufacturing a semiconductor apparatus device includes a plurality of layers on a semiconductor substrate. The method includes the steps of dividing a pattern of at least a layer into a plurality of sub-patterns, and joining the divided sub-patterns to perform patterning. The layer including wiring substantially affects operation of the semiconductor device depending on a positional relationship to any other wiring, the patterning is performed by one-shot exposure using a single mask, and only as to the layer including the wiring substantially affecting the operation of the semiconductor device depending on the positional relationship to any other wiring, the patterning is performed by one-shot exposure, and as to all of the other layers, the patterning is performed by division exposure.

Automatic speed changing apparatus for wheel loader

A light measuring device for a single lens reflex camera includes a principal or main mirror capable of dividing light passing through an objective lens towards a finder system and towards a film plane. A submirror is provided behind the main mirror and directs the light passed therethrough towards the film plane for ultimately determining a focusing condition and a measurement of light intensity. A pair of focus detecting photosensor arrays, as well as a spotlight measuring photocell, is arranged relative to the submirror to receive the object light. The auxiliary mirror can be formed with a center portion for reflecting the light through the photocell arrays and a second light-reflecting plane having light diffusive characteristics for directing light for the detection of light measurement.

Light measuring device for a single lens reflex camera

An optical system for a viewfinder camera is provided. The objective lens system is divided into at least two separate lens groups. The first lens group provides an insufficient correction to aberration while the second lens group is designed specifically to correct the aberration transmitted through the first lens group. The complimentary viewfinder system is also likewise designed to correct the same aberration as the second lens group.

Optical system for use in single lens reflex cameras

A pentagonal prism for use in a viewfinder of a single lens reflex camera is made of a glass whose refractive index and Abbe number are not less than 1.6 and 45, respectively. Effective optical path regions on a pair of roof surfaces of the prism are left transparent so that viewfinder light can be totally reflected at both of the roof surfaces. A light absorbing paint is coated in an upper front surface, a pair of said surfaces of the prism as well as at regions other than effective optical path region of the roof surfaces, a bottom light incident surface and a rear light exit surface of the prism. The light absorbing paint prevents the occurrence of ghost images in the view field of the viewfinder. New type glasses suited for the prism are proposed.

Pentagonal prism for camera viewfinder

An optical conversion attachment assembly for objective camera lenses is provided to convert a lens into a monocular optical device. A camera exchangeable lens can be detachably mounted on the barrel of an optical attachment having an erecting prism and an ocular system to vary the diopter power. The optical attachment further provides a device for automatically contacting and holding the diaphragm of the camera exchange lens at a maximum aperture opening.

Optical conversion assembly for objective camera lenses

A hollow pentagonal roof type reflecting mirror assembly for use in a viewfinder optical system of a single lens reflex camera is dust tight to prevent entry of dust into the inside hollow space and includes a filtered vent aperture to allow passage of vapor so that condensation will not occur inside the assembly. The assembly includes a hollow pentagonal body having roof and front mirrors and at least one vent aperture and a shielding or sealing member arranged to close the vent hole. The shielding or sealing member is made of a dust proof and ventilative material such as a foamed plastic, a paper and a cloth to filter out any dust particles.

Pentagonal roof reflecting mirror assembly

A pentagonal prism for use in a viewfinder of a single lens reflex camera makes use of total reflection of viewfinder light flux at effective optical path regions on its pair of roof surfaces. The prism constitutes a module together with a protection cover attachable thereto for protection of the roof surfaces. The cover is provided with a pair of roof walls accomodated to the roof surfaces of the prism and including recessed portions corresponding to the effective optical path regions on the roof surfaces and peripheral portions corresponding to portions on the roof walls out of the effective optical path regions. Upon attachment of the cover to the prism, the peripheral portions contact the portions on the roof surfaces out of the effective optical path regions and an air space which ensures the total reflection is left between the inner surfaces of the recessed portions and the effective optical path regions on the roof surfaces. A ghost may be prevented from occurring when the inner surfaces of the roof walls are black-frosted, black-ground or black-roughened for light absorption or when the roof walls are designed to intersect with one another at a ridge angle of less than 90.degree. .

Pentagonal prism module for camera viewfinder

An indicating device for a camera, which includes a viewfinder and which is selectively settable to either an automatic diaphragm control mode or an automatic shutter speed control mode, enables selective observation of the f-number and the shutter speed scales in accordance with the selection of the exposure control modes. The f-number and shutter speed scales are provided on a common transparent scale plate which is interconnected with an exposure control mode selecting member by a scale shifting mechanism. The scale shifting mechanism shifts the scale plate to a first position wherein only the f-number scale is in the viewfinder optical path upon selection of the automatic diaphragm control mode, and to a second position wherein both the f-number scale and the shutter speed scale are in the viewfinder optical path. A scale shielding member is provided within the viewfinder optical path to shield the f-number scale when the scale plate is in the second position.

Indicating devices for camera viewfinders

A pentagonal roof reflecting viewfinder assembly for a single lens reflex camera is provided. A focussing plate and a first and second reflecting mirror are part of the assembly. The improvement includes a third aspherical reflecting mirror having a lesser curvature at its marginal portions than adjacent an apex of the surface. The apex being positioned above the reflective surface of the third mirror. An ocular is provided having at least two lens elements with one of the lens elements being tilted relative to the optical axis of the ocular.

Growing community of inventors

Kawachinagano, Japan

Yasuo Yamazaki