The invention discloses a glycosuria measurement device, comprising a prism body and a housing. The prism body comprises a first accommodating space, a junction surface, a first light penetrating surface, a second light penetrating surface, a third light penetrating surface and a light-emitting surface. The first accommodating space accommodates urine. The junction surface is formed at a bottom surface of the first accommodating space. The first light penetrating surface is formed at the first lateral surface of the first accommodating space. The second light penetrating surface is formed at the second lateral surface of the first accommodating space. The third light penetrating surface is disposed opposite to the junction surface. The light-emitting surface is disposed opposite to the junction surface. The housing comprises a second accommodating space, a first light-emitting port and a second light-emitting port. The second accommodating space accommodates the prism body.

An analysis device includes a controller configured to count a pulse derived from a particles as a plural particles when a light reception level signal includes the pulse having a first extreme value point, a second extreme value point, and a third extreme value point, and the pulse fulfils a condition in which the third extreme value point is present between the first extreme value point and the second extreme value point in a pulse width direction of the pulse, the third extreme value point is present between the first extreme value point and a threshold in a pulse amplitude direction, the first extreme value point and the second extreme value point are each an extreme value point of a waveform projecting in a common direction, and the third extreme value point is an extreme value point of a waveform in a direction opposite to the common direction.

Disclosed are systems and methods of label-free detecting cellular physiological activities involving monitoring local refractive index changes associated with cellular physiological activities using a single ultracompact light emitting diode (LED) chip serving as a refractometer.

The present disclosure is to provide a measurement chip, a measuring device, and a measuring method which can accurately estimate an analyte concentration with a simple configuration. A measurement chip may include a propagation layer, an introductory part, a drawn-out part and a reaction part. Through the propagation layer, light may propagate. The introductory part may introduce the light into the propagation layer. The drawn-out part may draw the light from the propagation layer. The reaction part may have, in a surface of the propagation layer where a reactant that reacts to a substance to be detected is formed, an area where a content of the reactant changes monotonously in a perpendicular direction perpendicular to a propagating direction of the light, over a given length in the propagating direction.

The present disclosure is to provide a measurement chip, a measuring device, and a measuring method which can accurately estimate an analyte concentration with a simple configuration. A measurement chip may include a propagation layer, an introductory part, a drawn-out part and a reaction part. Through the propagation layer, light may propagate. The introductory part may introduce the light into the propagation layer. The drawn-out part may draw the light from the propagation layer. The reaction part may have, in a surface of the propagation layer where a reactant that reacts to a substance to be detected is formed, an area where a content of the reactant changes monotonously in a perpendicular direction perpendicular to a propagating direction of the light, over a given length in the propagating direction.

According to one embodiment, an optical test apparatus includes a first aperture, a second aperture, an image sensor, and a first lens. The first aperture includes a first aperture plane provided with a first wavelength selecting region. The second aperture includes a second aperture plane provided with a second wavelength selecting region different from the first wavelength selecting region. The image sensor is configured to image a light beam passing through the first aperture plane and the second aperture plane and reaching an imaging plane. The first lens is configured to make a light beam passing through the first aperture plane and the second aperture plane be incident on the imaging plane.

According to one embodiment, an optical test apparatus includes a first aperture, a second aperture, an image sensor, and a first lens. The first aperture includes a first aperture plane provided with a first wavelength selecting region. The second aperture includes a second aperture plane provided with a second wavelength selecting region different from the first wavelength selecting region. The image sensor is configured to image a light beam passing through the first aperture plane and the second aperture plane and reaching an imaging plane. The first lens is configured to make a light beam passing through the first aperture plane and the second aperture plane be incident on the imaging plane.

A biological component measurement apparatus includes an optical medium, an excitation light source, a probe light source, and a light position detector. The optical medium includes a sample placement surface. The excitation light source emits excitation light toward a sample placed on the sample placement surface. The probe light source emits probe light that travels through the optical medium. The light position detector detects the position of the probe light outgoing from the optical medium. The optical medium is formed from chalcogenide glass.

A biological component measurement apparatus includes an optical medium, an excitation light source, a probe light source, and a light position detector. The optical medium includes a sample placement surface. The excitation light source emits excitation light toward a sample placed on the sample placement surface. The probe light source emits probe light that travels through the optical medium. The light position detector detects the position of the probe light outgoing from the optical medium. The optical medium is formed from chalcogenide glass.

A method and apparatus for measuring a 3-D refractive index tensor are presented. The method for measuring a 3-D refractive index tensor according to an embodiment comprises the steps of: controlling incident light of a plane wave with respect to at least one angle and polarization; and measuring, in a polarization-dependent manner, the 2-D diffracted light of a specimen with respect to the incident light incident at the at least one angle and polarization, wherein the birefringence value and the 3-D structure of an alignment direction of molecules in the specimen having birefringence may be measured.