Abstract: A workpiece supplying device includes a pallet that has a groove portion being disposed in an arc state and a stepped portion including a stepped surface intersecting a circumferential direction of the pallet and accommodates a workpiece, and a vibration unit that drives the pallet due to vibration and transports the workpiece in the circumferential direction toward the stepped portion. A plurality of the groove portions are disposed in a concentric manner.

Abstract: A workpiece supplying device includes a pallet that has a groove portion being disposed in an arc state and a stepped portion including a stepped surface intersecting a circumferential direction of the pallet and accommodates a workpiece, and a vibration unit that drives the pallet due to vibration and transports the workpiece in the circumferential direction toward the stepped portion. A plurality of the groove portions are disposed in a concentric manner.

Abstract: An alignment method includes: disposing an alignment mark provided to a positioned member and a reference mark provided to a surface of an alignment mask so that the alignment mark and the reference mark can face each other; capturing an image from the other surface side of the alignment mask, which is the opposite surface of the alignment mask from the surface where the reference mark is disposed, the image concurrently showing the alignment mark and the reference mark; performing a surface treatment on at least a region of the positioned member side of the alignment mask, which is captured as the image, rather than on the reference mark side thereof, the surface treatment providing a high contrast ratio to each alignment mark and reference mark on the captured image; and thereafter aligning the alignment mark with the reference mark, while checking the image.

Abstract: A manufacturing method of a projection apparatus includes forming a modulation device unit in which a reflective light modulation device and a reflective polarizer are fixed to predetermined relative positions, and adjusting a position of the reflective light modulation device relative to a projection optical device by shifting a position of the modulation device unit with respect to the projection optical device.

Abstract: An alignment jig for a liquid-jet head, which is used when positioning and joining a nozzle plate and a fixing member, the nozzle plate having nozzle orifices for jetting a liquid of the liquid-jet head and an alignment mark for alignment, the fixing member being adapted to hold a plurality of the liquid-jet heads, the alignment jig comprising a mask which is a transparent member provided with a reference mark for alignment with the alignment mark, the reference mark being formed within the mask.

Abstract: An adjusting unit for making positional adjustment of the optical axis adjustment mask, based on the observation by the one optical unit, such that the reference mark at the one location or the other location and the optical axis adjusting alignment mark corresponding positionally thereto are superposed, and for making optical axis adjustment of the other optical axis, based on the observation by the other optical unit, such that the reference mark at the one location or the other location and the optical axis adjusting alignment mark corresponding positionally thereto are superposed.

Abstract: The invention provides a liquid ejecting head alignment apparatus that is used for positional determination and adhesion of nozzle plates and a fixation member, each of the nozzle plates having nozzle openings through which each of a plurality of liquid ejecting heads ejects liquid and further having alignment marks for positional alignment, the fixation member holding the nozzle-plate side of the plurality of liquid ejecting heads.

Abstract: An alignment apparatus, which is used when positioning and joining a plurality of workpieces relative to each other, each workpiece having a plurality of alignment marks for alignment, the alignment apparatus includes: a transparent mask provided with reference marks with which the alignment marks are aligned; a mirror disposed between the mask and the workpiece; an optical unit having an optical axis pointed in a direction of the mirror via the reference mark from a side of the mask opposite to the mirror, the optical unit enabling the reference mark and a virtual image of the reference mark reflected in the mirror to be observed simultaneously; and an adjusting unit for making optical axis adjustment of the optical axis, based on the observation by the optical unit, such that a real image of the reference mark and the virtual image of the reference mark reflected in the mirror are superposed.

Abstract: An alignment apparatus includes a mask 410 which has a reference mark 401 at which an alignment mark 22 of an ink jet recording head 220 is positioned and a bifocal microscope 500 which has a first optical system 501 having an optical axis L1 and a second optical system 502 having an optical axis L2 and in which the first optical system 501 can focus on the reference mark 401 and the second optical system 502 can focus on the alignment mark 22. The bifocal microscope 500 is provided with optical axis adjustment means 520 which adjusts a direction of a reflection face of a second mirror 509 so that the optical axes L1 and L2 coincident with each other are incident to the reference mark 401 and the alignment mark 22.

Abstract: Provided is an alignment apparatus for a liquid-jet head which includes a nozzle plate, a fixation member, a transparent mask, chucks, and an alignment mechanism. The nozzle plate includes a nozzle orifice for injecting a liquid for the liquid-jet head, and a first and a second alignment marks to be used in an aligning operation. Each of the alignment marks is formed in each of two end portions in the longitudinal direction of the nozzle plate. The fixation member holds the nozzle-plate side of each of a plurality of liquid-jet heads. The fixation member and the nozzle plate are positioned relative to each other and joined together by use of the alignment apparatus for the liquid-jet head. The transparent mask includes a first and a second reference marks with which the first and the second alignment marks are to be aligned respectively. The chucks are brought into contact respectively with two end surfaces in the longitudinal direction of each liquid-jet head, and thus hold the liquid-jet head.

Abstract: An alignment method includes: disposing an alignment mark provided to a positioned member and a reference mark provided to a surface of an alignment mask so that the alignment mark and the reference mark can face each other; capturing an image from the other surface side of the alignment mask, which is the opposite surface of the alignment mask from the surface where the reference mark is disposed, the image concurrently showing the alignment mark and the reference mark; performing a surface treatment on at least a region of the positioned member side of the alignment mask, which is captured as the image, rather than on the reference mark side thereof, the surface treatment providing a high contrast ratio to each alignment mark and reference mark on the captured image; and thereafter aligning the alignment mark with the reference mark, while checking the image.

Abstract: An adjusting unit for making positional adjustment of the optical axis adjustment mask, based on the observation by the one optical unit, such that the reference mark at the one location or the other location and the optical axis adjusting alignment mark corresponding positionally thereto are superposed, and for making optical axis adjustment of the other optical axis, based on the observation by the other optical unit, such that the reference mark at the one location or the other location and the optical axis adjusting alignment mark corresponding positionally thereto are superposed.

Abstract: An alignment jig for a liquid-jet head, which is used when positioning and joining a nozzle plate and a fixing member, the nozzle plate having nozzle orifices for jetting a liquid of the liquid-jet head and an alignment mark for alignment, the fixing member being adapted to hold a plurality of the liquid-jet heads, the alignment jig comprising a mask which is a transparent member provided with a reference mark for alignment with the alignment mark, the reference mark being formed within the mask.

Abstract: The invention provides a liquid ejecting head alignment apparatus that is used for positional determination and adhesion of nozzle plates and a fixation member, each of the nozzle plates having nozzle openings through which each of a plurality of liquid ejecting heads ejects liquid and further having alignment marks for positional alignment, the fixation member holding the nozzle-plate side of the plurality of liquid ejecting heads.

Abstract: An alignment apparatus, which is used when positioning and joining a plurality of workpieces relative to each other, each workpiece having a plurality of alignment marks for alignment, the alignment apparatus includes: a transparent mask provided with reference marks with which the alignment marks are aligned; a mirror disposed between the mask and the workpiece; an optical unit having an optical axis pointed in a direction of the mirror via the reference mark from a side of the mask opposite to the mirror, the optical unit enabling the reference mark and a virtual image of the reference mark reflected in the mirror to be observed simultaneously; and an adjusting unit for making optical axis adjustment of the optical axis, based on the observation by the optical unit, such that a real image of the reference mark and the virtual image of the reference mark reflected in the mirror are superposed.