Abstract:
Disclosed herein is an apparatus (200) comprising: a plurality of locations (256) configured to have probes (257) attached thereto, wherein interaction between the probes (257) and an analyte generates a signal (258); an optical system (285) comprising a plurality of collimators (295); a sensor (251) comprising a plurality of pixels (270) configured to detect the signal (258); wherein the collimators (295) are configured to essentially prevent light from passing if a deviation of a propagation direction of the light from an optical axis of the collimators (295) is greater than a threshold.
Abstract:
A fluorescence microtitre plate reader comprises a plate reader body having a base, top and sidewalls, the top of the plate reader comprising at least one seat dimensioned for receipt of a microtitre plate, the at least one seat defining an aperture in the top of the plate that substantially corresponds to a base of the plate. The plate reader also includes means for illuminating wells of a microtitre plate with light from beneath the plate having an excitation wavelength, and a camera and lens assembly for capturing light emitted by the wells of the microtitre plate and generating a digital image, in which regions of light intensity of the image correspond to wells of the microtitre plate. An optical system is disposed within the plate reader body for expanding the distance to image plane of light, the optical system comprising a first mirror disposed to receive light from the wells of the microtitre plate and reflect the light to second mirror which is disposed to reflect incident light to the camera lens. The means for illumining the wells of the microtitre plate comprises a ring light that embraces the camera and lens assembly.
Abstract:
The invention relates to a smoke detector comprising a chamber (6) designed to collect the smoke which is to be detected, the detector being characterized in that said chamber (6) is defined at least partially by a cover (5), the concave part (52) of which comprises an access wall (53) for the entry of the smoke, having a general orientation essentially parallel to the plane of an external mounting surface (10) on which the detector is mounted on its mounting plate, which is essentially horizontal when the detector is fixed conventionally to a ceiling.
Abstract:
An illuminator (51) includes: a first cylindrical member (52) with a mirror-like inner surface formed to facilitate light reflection; a flat plate member (53) having an aperture in its center; LEDs (54) with trimmed distal ends and arranged in a circle along the periphery of the aperture; LEDs (55) with trimmed distal ends and arranged in a circle along a circumferential direction of the first cylindrical member (52) so as to be located on a lengthwise middle part of the inner surface of the cylindrical member; a second cylindrical member having an engagement portion engaged with the cylindrical member (52); LEDs (57) with trimmed distal ends and arranged in a circle along a circumferential direction of the engagement portion; and a ring-shaped semitransparent diffusion plate (58). The illuminators (51) illuminate a to-be-mounted component with light having a directivity.