Abstract: A gas laser amplifier includes a housing, discharge electrode pairs, and an optical resonator. The housing includes an entrance window that allows entry of a first laser beam from outside and an exit window that allows exit of the first laser beam amplified. Each of the discharge electrode pairs excites a laser gas supplied between discharge electrodes facing each other in the housing. The optical resonator causes a second laser beam to oscillate with a gain of the excited laser gas in a non-incident state where the first laser beam from outside the housing does not enter the housing through the entrance window. In an incident state where the first laser beam enters the housing through the entrance window, the optical resonator suspends the oscillation of the second laser beam.

Abstract: A laser apparatus includes a laser oscillator; an acousto-optic modulation unit including a first acousto-optic modulator that diffracts a laser beam from the laser oscillator when a first ultrasonic wave is applied and a second acousto-optic modulator that diffracts a higher order beam output from the first acousto-optic modulator when a second ultrasonic wave is applied; and an amplifier that amplifies the laser beam from the acousto-optic modulation unit, a propagation direction of the first ultrasonic wave relative to a diffracted direction of the higher order beam emitted from the first acousto-optic modulator and a propagation direction of the second ultrasonic wave relative to a diffracted direction of a higher order beam emitted from the second acousto-optic modulator being different.

Abstract: Measurement system includes a first device communicably connected to a second device. The first device includes an acquisition unit, a storage unit, and a first calculation unit. The acquisition unit acquires measurement data relating to a physical quantity of a characteristic of an object. The storage unit stores the measurement data. The first calculation unit calculates, from the measurement data, a first value relating to a specific index for the characteristic of the object. The first device transmits the measurement data and data indicating the first value to the second device. The second device includes a second calculation unit, and a comparison unit. The second device receives the measurement data and the first value transmitted from the first device, and calculates a second value relating to the specific index from the measurement data. The comparison unit compares the first value with the second value.

Abstract: Measurement system includes a first device communicably connected to a second device. The first device includes an acquisition unit, a storage unit, and a first calculation unit. The acquisition unit acquires measurement data relating to a physical quantity of a characteristic of an object. The storage unit stores the measurement data. The first calculation unit calculates, from the measurement data, a first value relating to a specific index for the characteristic of the object. The first device transmits the measurement data and data indicating the first value to the second device. The second device includes a second calculation unit, and a comparison unit. The second device receives the measurement data and the first value transmitted from the first device, and calculates a second value relating to the specific index from the measurement data. The comparison unit compares the first value with the second value.

Abstract: A backing member (50a) is pressed in a perpendicular direction (D3) by a predetermined sheet conveyed to a colorimetric position (P), and is disposed behind the predetermined sheet at the colorimetric position (P) when viewed from a colorimetric unit (40). A supporter (90) supports the backing member (50a) in a manner that the backing member (50a) can move in the perpendicular direction (D3). Holders (23a, 23b, 23c) hold a color tile member (80a) disposed on the backing member (50a) in a state that the amount of movement of the backing member (50a) in the perpendicular direction (D3) by the color tile member (80a) being thicker than the predetermined sheet and disposed on the backing member (50a) is larger than the amount of movement of the backing member (50a) in the perpendicular direction (D3) by the predetermined sheet.

Abstract: A backing member (50a) is pressed in a perpendicular direction (D3) by a predetermined sheet conveyed to a colorimetric position (P), and is disposed behind the predetermined sheet at the colorimetric position (P) when viewed from a colorimetric unit (40). A supporter (90) supports the backing member (50a) in a manner that the backing member (50a) can move in the perpendicular direction (D3). Holders (23a, 23b, 23c) hold a color tile member (80a) disposed on the backing member (50a) in a state that the amount of movement of the backing member (50a) in the perpendicular direction (D3) by the color tile member (80a) being thicker than the predetermined sheet and disposed on the backing member (50a) is larger than the amount of movement of the backing member (50a) in the perpendicular direction (D3) by the predetermined sheet.