Abstract:
A target supply device may include a first container configured to contain a target substance, a second container configured to contain the target substance supplied from the first container, a first valve disposed between the first container and the second container, a first pipe connected to the second container and configured to supply pressurized gas to the second container, a third container configured to contain the target substance supplied from the second container, a second valve disposed between the second container and the third container, a second pipe connected to the third container and configured to supply pressurized gas to the third container, and a nozzle configured to output the target substance supplied from the third container.
Abstract:
An extreme ultraviolet light sensor unit according to one aspect of the present disclosure includes a mirror configured to reflect extreme ultraviolet light, a filter configured to transmit the extreme ultraviolet light reflected by the mirror, an optical sensor configured to detect the extreme ultraviolet light having passed through the filter, a purge gas supply unit disposed to supply purge gas to a space between the mirror and the filter, and a pipe part configured to allow plasma light including the extreme ultraviolet light entering from an opening to pass therethrough toward the mirror and allow the purge gas flowing to the space between the mirror and the filter to flow out of the opening.
Abstract:
An optical unit and an optical path tube are easily connected. A structure of connection between a side surface (1a) of the optical unit and the optical path tube includes: an extensible tube (72) constituting at least a part of the optical path tube, the extensible tube being extensible in a tube axis direction; a flange (26) attached to one end of the optical path tube; a flange receiving part (20) provided on the optical unit, the flange receiving part (20) receiving a front surface (26a) of the flange (26), the front surface (26a) of the flange (26) being an end surface on an open side; and a biasing part (23, 72) configured to bias at least a part of the optical path tube in a direction in which the extensible tube (72) extends.
Abstract:
A mirror device may include: a mirror including a base plate, a reflective film on a first surface of the base plate, and a plurality of first protrusions on a second surface of the base plate; a plurality of support parts for respectively supporting the plurality of the first protrusions, each support part having a groove formed therein for guiding the first protrusion; and a plurality of clamps for respectively pressing the plurality of the first protrusions against the respective grooves in the plurality of the support parts.
Abstract:
An optical apparatus may include a housing having an opened front face, an optical unit freely movable into and out of an internal space of the housing through the front face, and a positioning portion disposed on a back side of the optical unit in the internal space. A base plate of the optical unit may include first and second convex portions disposed on a base end face of the base plate. The second convex portion may be disposed at a position different from the first convex portion in a width direction of the base plate. The positioning portion may include a V block having a V groove shape at a part contacting the first convex portion, and a flat block having a flat surface shape at a part contacting the second convex portion. The optical unit may be positioned in the internal space through the contact.
Abstract:
A gas lock device may include a chamber having a passage section and a connection hole that connects a surface to the passage section, an optical element that is attached to the chamber and seals the passage section, a gas supply apparatus, and a pipe that is attached at one end to the gas supply apparatus and attached at the other end to the chamber, and may define a flow channel communicating with the connection hole.
Abstract:
A target supply device includes a target supply device body including a nozzle having a through-hole through which a target material is discharged, a piezoelectric member having first and second surfaces and connected to the target supply device body at the first surface, the piezoelectric member being configured such that a distance between the first and second surfaces changes in according with an externally supplied electric signal, an elastic member having first and second ends and connected to the second surface of the piezoelectric member at the first end, the elastic member being configured such that a distance between the first and second ends extends or contract in accordance with an externally applied force, and a regulating member configured to regulate a distance between the second end of the elastic member and the target supply device body.