Abstract: A substrate processing apparatus includes a liquid processing unit configured to supply, onto a front surface of a substrate, individual multiple processing liquids different from each other; an exhaust unit configured to exhaust an exhaust gas exhausted from the liquid processing unit to an outside. The exhaust unit includes a main exhaust pipe including a first portion and a second portion, a first individual exhaust pipe, a second individual exhaust pipe, a switching unit and an outside air introduction pipe. The switching unit includes a first switching mechanism, a second switching mechanism, a third switching mechanism provided between the first portion and the second portion of the main exhaust pipe, an outside air introduction pipe connected to the second portion to allow outside air to be introduced into the second portion, and a fourth switching mechanism provided in the outside air introduction pipe.

Abstract: An optical coupling module for suppressing optical loss by improving degradation of a wiggle characteristic exhibited upon application of an external force. A sleeve joins end faces of optical fibers. A sleeve casing covers the sleeve to protect the joined surfaces of the optical fibers. A splitting slit portion having a return structure is formed in a side of the sleeve. The sleeve casing comprises an inner sleeve casing for covering the sleeve, and an outer sleeve casing for covering the inner sleeve casing. The inner sleeve casing has a side formed with slits. The outer sleeve casing has an inner surface formed with guards for holding the sleeve. The outer sleeve casing is slidingly mounted by inserting the guards into the slits.

Abstract: An optical coupling module attaches and detaches an optical fiber with respect to a device that carries out optical communication. The optical coupling module includes a sleeve that includes and couples the optical fiber, a sleeve case that covers the sleeve, and a guiding unit that guides, an optical connector that is inserted from outside, such that an optical fiber, exposed at the tip of the optical connector, penetrates inside the sleeve. The guiding unit includes elastic members that are deformed due to the optical connector being inserted and fix the optical connector.

Abstract: An optical coupling module for suppressing optical loss by improving degradation of a wiggle characteristic exhibited upon application of an external force. A sleeve joins end faces of optical fibers. A sleeve casing covers the sleeve to protect the joined surfaces of the optical fibers. A splitting slit portion having a return structure is formed in a side of the sleeve. The sleeve casing comprises an inner sleeve casing for covering the sleeve, and an outer sleeve casing for covering the inner sleeve casing. The inner sleeve casing has a side formed with slits. The outer sleeve casing has an inner surface formed with guards for holding the sleeve. The outer sleeve casing is slidingly mounted by inserting the guards into the slits.