Abstract: Provided is a winding apparatus that is provided with a splitter that splits radiant light from a light source unit into measurement light applied to a side face part of a first sheet and a second sheet and reference light applied to a reference surface, an interference detector that detects interference light formed by interference between the reference light reflected by the reference surface and the measurement light reflected by the side face part, a position detector that detects the position of the first sheet and the position of the second sheet on the basis of the detected interference light, and a decision processor that decides the quality of the wound body on the basis of the detected positions of the first sheet and the second sheet.

Abstract: Provided is a winding apparatus that is provided with a splitter that splits radiant light from a light source unit into measurement light applied to a side face part of a first sheet and a second sheet and reference light applied to a reference surface, an interference detector that detects interference light formed by interference between the reference light reflected by the reference surface and the measurement light reflected by the side face part, a position detector that detects the position of the first sheet and the position of the second sheet on the basis of the detected interference light, and a decision processor that decides the quality of the wound body on the basis of the detected positions of the first sheet and the second sheet.

Abstract: Provided is a winding apparatus that is provided with a splitter that splits radiant light from a light source unit into measurement light applied to a side face part of a first sheet and a second sheet and reference light applied to a reference surface, an interference detector that detects interference light formed by interference between the reference light reflected by the reference surface and the measurement light reflected by the side face part, a position detector that detects the position of the first sheet and the position of the second sheet on the basis of the detected interference light, and a decision processor that decides the quality of the wound body on the basis of the detected positions of the first sheet and the second sheet.

Abstract: Provided is a winding apparatus that is provided with a splitter that splits radiant light from a light source unit into measurement light applied to a side face part of a first sheet and a second sheet and reference light applied to a reference surface, an interference detector that detects interference light formed by interference between the reference light reflected by the reference surface and the measurement light reflected by the side face part, a position detector that detects the position of the first sheet and the position of the second sheet on the basis of the detected interference light, and a decision processor that decides the quality of the wound body on the basis of the detected positions of the first sheet and the second sheet.

Abstract: A laser welding apparatus includes: a first optical element that coaxially emits, to a welded part, a laser beam emitted from a laser light source and an object beam having a different wavelength from the laser beam; a second optical element that causes the spot diameter of the object beam to be larger than the spot diameter of the laser beam on the welded part; an optical interferometer that emits the object beam to the first optical element, detects through the first optical element the object beam reflected on the welded part, and generates an electric signal based on the detected object beam; and a measuring unit that measures a penetration depth of the welded part based on the electric signal.

Abstract: A laser welding apparatus includes: a first optical element that coaxially emits, to a welded part, a laser beam emitted from a laser light source and an object beam having a different wavelength from the laser beam; a second optical element that causes the spot diameter of the object beam to be larger than the spot diameter of the laser beam on the welded part; an optical interferometer that emits the object beam to the first optical element, detects through the first optical element the object beam reflected on the welded part, and generates an electric signal based on the detected object beam; and a measuring unit that measures a penetration depth of the welded part based on the electric signal.

Abstract: An image pickup apparatus of the present invention includes: a fixed frame; a zoom lens holding frame; a focus lens holding frame; a focus driving unit and a zoom driving unit; an image pickup device; a base plate that is coupled to the fixed frame and displaceably supports the image pickup device; an X driving unit that drives the image pickup device in an X direction; and a Y driving unit that drives the image pickup device in a Y direction, wherein the focus driving unit is placed in an upper left portion of the fixed frame, the zoom driving unit is placed in a right side portion, and further the Y driving unit is placed in an upper right corner of the base plate and the X driving unit is placed in a lower right corner.

Abstract: An image pickup apparatus of the present invention includes: a fixed frame; a zoom lens holding frame; a focus lens holding frame; a focus driving unit and a zoom driving unit; an image pickup device; a base plate that is coupled to the fixed frame and displaceably supports the image pickup device; an X driving unit that drives the image pickup device in an X direction; and a Y driving unit that drives the image pickup device in a Y direction, wherein the focus driving unit is placed in an upper left portion of the fixed frame, the zoom driving unit is placed in a right side portion, and further the Y driving unit is placed in an upper right corner of the base plate and the X driving unit is placed in a lower right corner.