Abstract: A bio-optical measuring apparatus according to an embodiment of the present disclosure includes a light source that emits coherent light; and three or more optical receivers that receive reflected light from a living body, of light outputted from the light source toward the living body. The bio-optical measuring apparatus further includes a signal processing unit that obtains a low-noise signal by performing averaging processing based on detection signals outputted from the respective optical receivers in response to reception of the reflected light.

Abstract: Provided is a technology capable of accurately measuring biological information with a simple structure. Provided is a biological information measurement device including: a light emitting element that irradiates a living body with light; and a plurality of light receiving elements that receives light scattered in the living body, in which at least one light receiving element has a different area from an area of another light receiving element. Further, provided is a biological information measurement system including: a biological information measurement device including a light emitting element that irradiates a living body with light, and a plurality of light receiving elements that receives light scattered in the living body, in which at least one light receiving element has a different area from an area of another light receiving element; and an analysis device that analyzes biological information on the basis of signals obtained from the light receiving elements.

Abstract: A biological information measurement apparatus including: a light emitting unit that irradiates a living body with light; and a light receiving unit that receives light scattered at a plurality of measurement sites in the living body, in which the biological information measurement apparatus includes a mechanism in which the light scattered at the plurality of measurement sites is individually detected by a plurality of the light receiving units or the same light receiving unit. Also provided is a biological information measurement system including: a light emitting device that irradiates a living body with light; and a light receiving device that receives light scattered at a plurality of measurement sites in the living body, in which the biological information measurement system includes a mechanism in which the light scattered at the plurality of measurement sites is individually detected by a plurality of light receiving units or the same light receiving unit.

Abstract: The present technology provides a living body information measurement apparatus and a living body information measuring method that make it possible to discriminate a state of a living body with high accuracy. The present technology provides a living body information measurement apparatus including: a sensor device that applies light to a living body and individually detects light scattered by a plurality of parts in the living body; and a processor that discriminates a state of the living body on the basis of outputs of the sensor device for the respective parts. According to the present technology, it is possible to provide a living body information measurement apparatus and a living body information measuring method that make it possible to discriminate the state of the living body with high accuracy.

Abstract: The present technology is to provide a small-sized biological signal measuring device capable of performing both pulse measurement and blood flow measurement with high accuracy. The present technology provides a biological signal measuring device that includes: a light emitting unit that includes at least a first light emitting element and a second light emitting element that irradiate a biological surface; and a light receiving unit that includes at least one light receiving element that receives light scattered in a living body by light emitted from the light emitting unit, and outputs biological information that is a light intensity signal measured by the light receiving element.

Abstract: A pulse measuring device of the disclosure includes a housing, a light-emitting device, a light-receiving device, and a light guide body having a first end surface facing the light-emitting device, a second end surface facing the first end surface and facing the light-receiving device, one or a plurality of first side surfaces covered by the housing, and one or a plurality of second side surfaces exposed from the housing.

Abstract: A bio-optical measuring apparatus according to an embodiment of the present disclosure includes a light source that emits coherent light; and three or more optical receivers that receive reflected light from a living body, of light outputted from the light source toward the living body. The bio-optical measuring apparatus further includes a signal processing unit that obtains a low-noise signal by performing averaging processing based on detection signals outputted from the respective optical receivers in response to reception of the reflected light.

Abstract: A pulse measuring device of the disclosure includes a housing (19), a light-emitting device (11), a light-receiving device (13), and a light guide body (12) having a first end surface (12A) facing the light-emitting device (11), a second end surface (12B) facing the first end surface (12A) and facing the light-receiving device (13), one or a plurality of first side surfaces covered by the housing (19), and one or a plurality of second side surfaces (S) exposed from the housing (19).

Abstract: There is provided an optical disc device that performs recording on a land and a groove, including an optical path splitter configured to split a luminous flux returning from an optical disc into first and second optical paths, a first detector configured to receive a whole of the luminous flux that has passed through the first optical path, a second detector configured to receive a luminous flux of an inside part of the luminous flux that has passed through the second optical path, a spherical aberration error signal generation unit configured to generate a spherical aberration error signal on the basis of a difference between a first focus error signal obtained on the basis of a detection signal of the first detector and a second focus error signal obtained on the basis of a detection signal of the second detector, a spherical aberration correction unit, and an adjustment unit.

Abstract: There is provided an optical disc device that performs recording on a land and a groove, including an optical path splitter configured to split a luminous flux returning from an optical disc into first and second optical paths, a first detector configured to receive a whole of the luminous flux that has passed through the first optical path, a second detector configured to receive a luminous flux of an inside part of the luminous flux that has passed through the second optical path, a spherical aberration error signal generation unit configured to generate a spherical aberration error signal on the basis of a difference between a first focus error signal obtained on the basis of a detection signal of the first detector and a second focus error signal obtained on the basis of a detection signal of the second detector, a spherical aberration correction unit, and an adjustment unit.

Abstract: An optical recording medium includes a first transparent film layer, a second transparent film layer, and a recording material layer sandwiched between the first transparent film layer and the second transparent film layer. The recording material layer includes a hologram recording material.