Abstract:
PROBLEM TO BE SOLVED: To reduce the effect of directly reflected light on a contact-surface side of a contact member. SOLUTION: A biological information detector includes: a light-emitting part 14; a light-receiving part 16; a reflecting part 18; a protecting part 19 subjected to protect the light-emitting part 14, the protecting part having a contact member 19-2 provided with a contact surface in contact with the detection site, and the contact member being formed from a material that is transparent with respect to a wavelength of the light emitted by the light-emitting part 14; and a substrate 11. Light emitted from the light-emitting part 14 is prevented from reflecting once on a contact-surface side of the contact member 19-2 of the protecting part 19 and being incident on a light-receiving region of the light-receiving part 16. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a means for simply, inexpensively and effectively suppressing the penetration of optically non-ideal stray light, which becomes a main cause for producing background fluorescence becoming the maximum obstacle factor of observation when evanescent wave exciting fluorescent observation is performed, into the upper part of the fixing region of a molecule to be examined on a waveguide substrate. SOLUTION: In the evanescent wave exciting fluorescent observation, a stray light absorbing region is effectively arranged on the waveguide substrate to efficiently abosorb the stray light arriving at the probe solution layer of the upper layer of the fixing region of the molecule to be examined in a reaction tank. As a result, the penetration of the stray light into the reaction tank is sharply suppressed. Further, the incident edge face of incident light on the waveguide substrate is subjected to laser cutting processing to suppress the occurrence of scattered stray light at the edge face of the waveguide substrate. Accordingly, the background light becoming a problem at the time of evanescent wave exciting fluorescent observation is reduced. COPYRIGHT: (C)2008,JPO&INPIT
Abstract:
A measuring cell is formed of base plates joined together. A passage groove is formed on a joining surface of one base plate. Through-holes for introducing and discharging a fluid sample are formed on the other base plate, and the joining surface is provided with an optically opaque Si film as slits. Further, the joining surfaces of the base plates and the inner surface of the passage groove are covered with SiO2 films. Thus, a measuring cell having a sufficiently small passage sectional area, a high air-tightness, a chemically stable measuring chamber, and a high measuring sensitivity can be obtained.