Seiko Epson Corporation

Teruyuki Inukai

Ken Ikuma

Tsutomu Sasaki

Toru Tanjo

Yujiro Nomura

Motomu Hayakawa

Kunihiro Kawada

A measurement system includes a projection section that switches first pattern light having a fringe pattern to second pattern light having a fringe pattern containing a greater number of fringes than the first pattern light and vice versa and projects the selected light on an object to be measured, an imaging section that has a plurality of pixels and images the first pattern light and the second pattern light projected on the object to be measured, a phase shift section that shifts the phase of the first pattern light and the second pattern light projected by the projection section on the object to be measured, and an analysis section that analyzes results of the imaging performed by the imaging section by relating the fringes contained in the first pattern light and the second pattern light to the plurality of pixels.

Measurement system, measurement method, robot control method, robot, robot system, and picking apparatus

A density measuring device includes a moving member that can be moved in a liquid, a light emitting member and a light receiving member that receives light emitted by the light emitting member. A gap part in which the moving member is disposed in a path of light emitted from the light emitting member can be moved. A density measuring unit measures the density of the liquid based on the result of output of the light receiving member for a case where the moving member is located in the path of light emitted from the light emitting member and a case where the moving member is not located in the path of light emitted from the light emitting member.

Density measuring device, liquid developer storing apparatus, and image forming apparatus

A method of measuring density includes detecting movement of a moving member in a light path of light emitted from a light emitting member, measuring an output of a light receiving member for a case where the moving member is moved in the light path, as a first output, detecting that the moving member is not in the light path, measuring an output of the light receiving member for a case where the moving member is not in the light path, as a second output, and calculating density based on the first output and the second output.

Method of measuring and adjusting density of liquid developer by detecting movement of moving member in light path

The invention provides an image forming apparatus and an image forming method capable of smoothly and reasonably conducting image formation in case of using a lens (lenses) of which optical magnification is minus. An image forming apparatus of the invention comprises: a line head having lenses of which optical magnification is minus and a light emitter array in which a plurality of light emitting elements are aligned. The lenses are plural in an axial direction (main scanning direction) of an image carrier and a direction (sub scanning direction) perpendicular to the axial direction. A light emitter block composed of 'm&#xd7;n' (in number) light emitting elements is disposed relative to each lens. The 'm&#xd7;n' light emitting elements comprises &#x201c;n&#x201d; (in number) light emitting element lines arranged in the direction perpendicular to the axial direction and each light emitting element line includes &#x201c;m&#x201d; (in number) light emitting elements aligned in the axial direction. The image forming apparatus further comprises: a control means for actuating the respective light emitting elements to emit lights to be inversed in the axial direction and the direction perpendicular to the axial direction to form an image on the image carrier. In this manner, images of plural colors are formed on the image carrier at once.

Growing community of inventors

Matsumoto, Japan

Teruyuki Inukai