Konica Minolta, Inc.

Konica Minolta Opto, Inc.

Otsuka Pharmaceutical Company, Limited

Yoshihiro Okumura

Kanji Sekihara

Takehiko Goshima

Akihiko Matsumoto

Hiroshi Umetsu

Atsushi Naito

Seiji Yuasa

Hiroshi Hirayama

Tetsuya Noda

Masataka Matsuo

Shinichiro Hara

Yoshimasa Hamano

To provide a method for manufacturing an optical element, which improves the surface precision of the optical surface as well as reducing the birefringence at a low cost. A method for manufacturing an optical elementA having optical surfacesandand a non-optical surfaceA that is adjacent to the optical surfacevia a ridge by injection molding includes forming the non-optical surfaceA with a mold surface. The mold surface includes a sink forming areaas a first area having a first surface roughness, and a high transfer areaas a second area having a second surface roughness different from the first surface roughness. The second area is located outside the first area.

Optical element and method for manufacturing optical element

A prism () is configured from a dielectric medium and is used in analysis using surface plasmons. The prism () is provided with an incidence surface () on which excitation light from outside is incident, a reflection surface () on which excitation light having entered the incidence surface () is reflected, an emission surface () from which excitation light reflected by the reflection surface () is emitted, and an opposing surface () opposing the reflection surface (). A gold film () is formed on the reflection surface (). The opposing surface () has a sink-mark surface (), and the sink-mark surface () is a transparent surface.

Prism, prism production method, mold, and sensor chip

First, an analytical chip having a prism, a metal film that includes a trapping region having immobilized on the surface thereof a trapping element for trapping a substance to be analyzed, and a mark in which the scatter of emitted plasmon scattered light differs from the scatter of plasmon scattered light emitted from the surrounding region, is disposed in a chip holder. Next, the rear surface of the metal film is irradiated with excitation light, plasmon scattered light emitted from the proximity of the mark is detected, and, on the basis of the detected plasmon scattered light, location information for the trap region is obtained. Next, the portion of the rear surface of the metal film that corresponds to the trap region arranged at the detected location is irradiated with excitation light, and fluorescence emitted by a fluorescent substance is detected.

Surface-plasmon enhanced fluorescence measurement method, surface-plasmon enhanced fluorescence measurement device, and analytical chip

An analysis chip contains a test reagent retention member and a sensing member. The test reagent retention member has a housing part for housing the sensing member, and an engaging part for engaging the sensing member within the housing part. The sensing member is secured in the housing part by the engaging part, in such a way as to have a certain area of mobility in relation to the housing part.

Analysis chip and analysis apparatus

There is provided a forming moldmade on the basis of a standard more reliable than an average roughness of a surface of a metal film that generates surface plasmon resonance, the forming mold being capable of improving an S/N ratio of an optical element. A forming moldfor a substrateof an optical elementused for measurements utilizing surface plasmon, wherein an Spc value of a molding surfacefor transferring a shape onto a surfaceof the substrateon a side facing an object to be measured is equal to or less than 100 [1/mm].

Forming mold, optical element, and method for producing optical element

A prism used in analysis utilizing surface plasmons is prism of a dielectric medium with a predetermined reflective index. Trapezoidal prism comprises an incident surface on which excitation light is incident from outside, a reflective surface at which the excitation light incident on the incident surface is reflected, an emission surface from which the excitation light reflected by the reflective surface is emitted; and an opposite surface which opposes the reflective surface. The opposite surface is a recessed sink mark surface.

Prism and sensor chip

A prism used in analysis utilizing surface plasmons is prism of a dielectric medium with a predetermined reflective index. Trapezoidal prism comprises an incident surface on which excitation light is incident from outside, a reflective surface at which the excitation light incident on the incident surface is reflected, an emission surface from which the excitation light reflected by the reflective surface is emitted; and an opposite surface which opposes the reflective surface. The opposite surface is a recessed sink-mark surface.

An injection molding comprises: a fixed mold; a movable mold which is capable of contacting to and separating from the fixed mold; and an injection unit which supplies molten resin to a space formed between the fixed mold and the movable mold when being pressed to a non-molding face of the fixed mold. The injection unit comprises: a nozzle portion which injects molten resin to the space formed between the molds; an injecting portion which applies molten resin pressure toward the space formed between the fixed mold and the movable mold though the nozzle portion; a heater and a temperature sensor provided on the nozzle portion; and a heater and a temperature sensor provided on the injecting portion, and detection accuracy of the sensor of the nozzle portion is higher than that of the injecting potion. There is thus provided an injection molding machine capable of manufacturing optics with high accuracy without considerable cost-up by realizing stable and highly accurate injection.

Injection molding machine

A molding machine includes a fixed mold and a movable mold. The molding machine is a so called micro molding machine which provides less than 150 KN of the mold clamping force for clamping the fixed mold and the movable mold. A positional shift length between both molds is preset at &#xb1;20 gm or less. Further, cavities are inserted in base molds of both molds respectively. Furthermore, cores are inserted in the cavities. The position of each cavity is adjustable with respect to each associated base mold. The position of each core is also adjustable with respect to each associated cavity. Moreover, the molding machine can simultaneously mold a plurality of optical components.

Optical component molding apparatus and method thereof

A purpose is to provide an optical component molding apparatus for producing a small-size and high-precision optical component and achieving good transferability and stability of a molded product. A multi-cavity molding machinehas a gate, a runner, and a sprueeach having the shape determined to meet conditions (1) to (5): (1) 'Miminum gate thickness'/'Maximum runner thickness' is in a range of more than 0.2 to less than 1.0; (2) &#x201c;Gate length&#x201d;/&#x201c;Maximum runner thickness&#x201d; is in a range of more than 0.4 to less than 4.0; (3) &#x201c;Outlet diameter of sprue&#x201d; is in a range of more than 1.0 mm to less than 5.5 mm; (4) &#x201c;Sprue length&#x201d; is in a range of more than 10 mm to less than 40 mm; and (5) &#x201c;Outlet diameter of sprue&#x201d;/&#x201c;Inlet diameter of sprue&#x201d; is in a range of more than 1 to less than 8.

Optical component molding apparatus

A mold assembly that is adapted to clamp fixed mold and movable mold together while making temperature adjustment and inject a molding material into a molding cavity provided therebetween, thereby producing an optical part. The mold assembly is one including fixed platen supporting fixed mold, provided on a part of its mold-side surface with locating hole and including ring of configuration with external and internal surfaces, fitted at its external surface in the locating hole, wherein the fixed mold is provided with a locating projection protruding toward the fixed platen, fitted in the internal surface of the locating hole, and wherein the ring consists of a material whose linear expansion coefficient is smaller than those of the material of the fixed platen and the material of the locating projection.

Mold assembly for optical parts and method of setup thereof

An injection mold and an injection molding apparatus having a movable mold and a fixed mold. Each of the movable/fixed molds has bases, and a runner, a gate and a cavity are formed. The gate is composed of recesses made in mutually opposite end surfaces of sleeve-like heat insulators provided for the bases. Thereby, the gate is heat-insulated, and resin in the gate is prevented from cooling down during a pressure retention step. Thus, the resin keeps fluidity longer.

Cold runner injection mold having an insulated gate

An apparatus for molding optical components of a small size and high precision is provided with good transferability and a reduced production cycle. This apparatus includes a plurality of runners arranged in a pattern allowing multi-cavity molding for molding plastic lenses each having an outer diameter of 2 mm to 12 mm and surface roughness Ra of 20 nm or less. The total projected area of the runners is determined within a range of 1 cmto 12 cm. The runners are arranged to extend around a sprue in directions perpendicular to an outer surface of the base molds. The pattern of the runners extending from the junction with the sprue to each shape transfer section is configured in two intersecting directions. A cavity is of a rectangular outer shape when seen from a pressure contact surface side.

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Toyohashi, Japan

Yoshihiro Okumura