Abstract: An optical transmitter includes: an optical modulator of a Mach-Zehnder type using an InP-based material; a bias controller configured to control a DC bias applied to the optical modulator; a monitor configured to monitor output light of the optical modulator to generate a monitor signal; and a corrector configured to correct a gain of the monitor signal in a direction in which wavelength dependency of insertion loss of the optical modulator is compensated according to a wavelength at a preceding stage of bias control by the bias controller.

Abstract: A three-dimensional molding device includes: an ejection unit including a plasticization unit that plasticizes a material to generate a molding material, and configured to eject the molding material from a nozzle opening; a stage configured to support the molding material ejected from the ejection unit; a heating unit configured to heat the molding material deposited on the stage; a position changing unit configured to change relative positions of the ejection unit and the stage; a housing configured to accommodate the ejection unit, the stage, the heating unit, and the position changing unit, and including a door; a lock mechanism configured to lock and unlock the door; a temperature detection unit configured to detect a temperature of at least one of the plasticization unit, the stage, and the heating unit; and a control unit. The control unit controls the lock mechanism based on a detection result of the temperature detection unit.

Abstract: A biological sensor module includes a light emitter that emits irradiation light with which a living body is irradiated, a light receiver that receives reflected light that is the irradiation light reflected off the living body, and a passage section through which the irradiation light and the reflected light pass. The passage section includes an outer surface section that comes into contact with the living body and an inner surface section that is opposite the outer surface section. The outer surface section has a first convex curved surface that presses the living body, and the inner surface section has a second convex curved surface that collects the reflected light incident on the passage section into a spot on the light receiver.

Abstract: A biological information measurement device includes a light emitting section configured to emit irradiation light with which an arm is irradiated, a light receiving section configured to receive the reflected light which is the irradiation light reflected by the arm, a passage part which the irradiation light and the reflected light pass through, The light blocking section configured to block the irradiation light propagating from the light emitting section toward the light receiving section, and a back lid which is opaque, and supports the passage part, wherein in a plan view viewed from a first direction from the light emitting section toward the passage part, the light blocking section is a metal plate disposed between the light emitting section and the light receiving section, and in a first side surface through a fourth side surface of the light receiving section facing to directions crossing the first direction, the second side surface through the fourth side surface 6h not opposed to the light blockin

Abstract: A biological information measuring device includes: a light-emitting unit emitting irradiation light irradiating an arm; a light-receiving unit receiving reflected light of the irradiation light reflected off the arm; a passage part where the irradiation light and the reflected light pass; and a back lid having a contact surface which surrounds the passage part and comes into contact with the arm, the back lid supporting the passage part. The passage part has an outer surface part coming into contact with the arm, and an inner surface part in a front-back relationship with the outer surface part. The outer surface part has a convex surface protruding from the contact surface and along a first direction from the light-emitting unit toward the passage part and coming into contact with the arm. The inner surface part has a recess part having a bottom surface provided between the contact surface and the convex surface as viewed along a cross section taken from a second direction orthogonal to the first direction.

Abstract: A biological sensor module includes a light emitter that emits irradiation light with which a living body is irradiated, a light receiver that receives reflected light that is the irradiation light reflected off the living body, and a passage section through which the irradiation light and the reflected light pass. The passage section includes an outer surface section that comes into contact with the living body and an inner surface section that is opposite the outer surface section. The outer surface section has a first convex curved surface that presses the living body, and the inner surface section has a second convex curved surface that collects the reflected light incident on the passage section into a spot on the light receiver.

Abstract: A magnetic card reader apparatus includes a magnetic data reading unit configured to read magnetic data of a magnetic card, an insertion detecting unit configured to detect an insertion of the magnetic card, and an interval increase/decrease driving unit configured to increase/decrease an interval between the magnetic data reading unit and the magnetic card when the insertion detecting unit detects the insertion of the magnetic card.