Ricoh Company, Ltd.

Motoyasu Murai

Toshihiro Kanematsu

Yasuo Yamanaka

Akira Fukushima

Kiyotaka Sawada

Shuichi Suzuki

Mitsuru Nakajima

A distance measuring apparatus is installed in a thing and a distance between the thing and a measuring target varies. The distance measuring apparatus includes a plurality of imaging devices; a first distance acquisition part that acquires a first distance to the measuring target based on respective sets of image data taken by the plurality of imaging devices; a second distance acquisition part that acquires a second distance to the measuring target based on a reflected wave of an electromagnetic wave irradiated onto the measuring target; and a holding member that holds the plurality of imaging devices and the second distance acquisition part.

Distance measuring apparatus, vehicle and method of calibration in distance measuring apparatus

A drive assist device includes a light source that irradiates a detection target with light, a first lens having a first area through which the irradiated light from the light source passes, a second lens having a second area through which reflected light reflected from the detection target passes, and a light receiving element that receives the reflected light that passes the second lens. The first area and the second area are arranged to be in align with each other, in width direction of the drive assist device.

Drive assist device, and vehicle using drive assist device

A method of producing a molding by injection molding, wherein only a part of the molding expected to sink is surely caused to sink while, e.g., a mirror surface is surely transferred to a desired part of the molding.

Plastic molding and method and apparatus for producing the same by injection molding

A plastic molding for use in an optical device, a method of producing the molding by injection molding, and an apparatus for practicing the method are disclosed. Only a part of a molding expected to sink is surely caused to sink while, e.g., a mirror surface is surely transferred to a desired part of the molding.

Plasting molding and method and apparatus for producing the same by injection molding

An apparatus for producing a plastic molded article or product for use in an optical device is a mold assembly. The mold assembly includes a pair of molds having an inner mold surface forming a cavity with a preselected volume into which a molten molding material is injected via a gate or sprue to fill the cavity and thereby form a molded product having a sink surface and at least one mirror surface after the molten molding material has cooled. The inner mold surface includes at least one transfer surface portion against which the at least one mirror surface of the molded product is formed, and at least one non-transfer surface portion against which the sink surface portion of the molded product is formed. The mold assembly also includes at least one vent hole, at least one bore in communication with the vent hole so that a preselected air pressure is applied to the molten molding material in the cavity via the bore and the vent hole, and at least one exhaust hole adjacent to, but spaced from the vent hole. Thus, only a part of the molded article or product expected to sink is surely caused to sink while, e.g., a mirror surface is surely transferred to a desired part of the molded article or product.

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Atsugi, Japan

Motoyasu Murai