Abstract: Plasma processing apparatus includes: plasma processing space; antenna; substrate support including bias electrode; gas introducing port supplying processing gas into plasma processing space; first RF generator supplying first RF signal to antenna; second, third RF generators supplying second, third RF signals to bias electrode; gas exhaust regulating plasma processing space pressure; and controller including circuitry.

Abstract: An acquisition method of image data to be used in a suitability determination of a defective fall of a scrap cut off from a workpiece processed by a press die. The acquisition method causes a computer to perform simulation of operation in which a plurality of the scraps cut off from the workpiece are discharged to outside the press die through a scrap chute. The simulation includes: disposing cameras with respect to the respective scraps, in which the cameras are configured to capture the respective scraps; and before each of the scraps is discharged to outside the scrap chute, when a speed of any one of the scraps becomes zero, allowing an associated one of the cameras to capture the relevant one of the scraps, and allowing the computer to acquire the image data regarding the relevant one of the scraps.

Abstract: The coated optical fiber (10) includes: an optical fiber (11) including a core (111) and a cladding (112); a first buffer layer (121) covering the optical fiber (11), and having a refractive index lower than that of the cladding (112) and a Shore D hardness of D/20.0/1 or higher; a second buffer layer (122) covering the first buffer layer (121), and having a higher Shore D hardness than the first buffer layer (121); and a jacket (13) covering the second buffer layer (122).

Abstract: The coated optical fiber (10) includes: an optical fiber (11) including a core (111) and a cladding (112); a first buffer layer (121) covering the optical fiber (11), and having a refractive index lower than that of the cladding (112) and a Shore D hardness of D/20.0/1 or higher; a second buffer layer (122) covering the first buffer layer (121), and having a higher Shore D hardness than the first buffer layer (121); and a jacket (13) covering the second buffer layer (122).