Abstract: A sample analyzer including a detection unit for irradiating a biological sample with light and obtaining optical information; a cell classification processor for classifying cells contained in the biological sample into cell groups based on the optical information; a scattered light information obtaining processor for obtaining scattered light information relating to a cell included in a predetermined cell group; a calculation processor for calculating a component value corresponding to an amount of component contained in cell included in the predetermined cell group based on the scattered light information; and an output device for outputting the component value calculated by the calculation means is disclosed. A computer program product is also disclosed.

Abstract: An imaging apparatus has input optics for obtaining a multispectral image bearing light and a programmable spectral switching section. The programmable spectral switching section has a first lens for directing light toward a dichroic separator that separates the multispectral image bearing light into a plurality of discrete spectral bands, each directed to an optical switch. Each optical switch is selectively enabled to redirect its corresponding spectral band back through the first lens as switched spectral band light. A light path selector element directs switched spectral band light toward an image forming section that has a sensor lens for directing switched spectral band light toward an image sensor. The image sensor forms image data according switched spectral band light from each optical switch. A control logic processor communicates with optical switches and with the sensor, providing instructions for enablement of optical switches and obtaining sensor data.

Abstract: A gaseous target analyte present as a minor constituent in an admixture with at least one other gaseous species can be detected using a cavity enhanced optical spectrometer by a process comprising the steps of: i) identifying a plurality of strong spectral absorption peaks of the target analyte which are present within the scanning range of the spectrometer, ii) determining for the identified peaks the pressure region above which the peak width increases substantially with increasing pressure and below which the peak width is substantially independent of pressure, iii) determining which of the peaks identified in step i) are, within the pressure region determined in step ii), free from spectral interference by any of the other components of the admixture. iv) measuring the spectrum of the admixture at the pressure region identified in step ii).

Abstract: There is provided a particle detector system and to detect particles on target including reticle and pellicle. The system includes a light transmitting device adapted to transmit light beam to a target through an electrowetting microlens, a light receiving device adapted to receive the transmitted light beam reflected by a surface of the target, a light refraction angle adjusting controller adapted to apply a voltage to the electrowetting microlens in order to adjust an incident angle of the light irradiated, and a detector adapted to analyze the light received by the light receiving device to determine whether there are particles on a surface of the target.

Abstract: A spectroscope capable of suppressing the dimension and the cost with avoiding a problem caused by polarization dependency of the diffraction grating. The spectroscope includes a polarizing beam splitter plate 3 that divides the light from an input fiber 1 into a first and a second optical paths and polarizes each light of each optical path having different direction of polarization with each other, a Fresnel rhomb half wave plate 5 that arranges the direction of polarization of the light in the first optical path into that in the second optical path and a plane mirror 4 that deflects the second optical path such that at least a portion of an area where the light through the first optical path is incident on the diffraction grating 6 and an area where the light through the second optical path is incident on the diffraction grating overlap each other.

Abstract: A system which detects droplets on a translucent surface having a camera which, upon activation, acquires an image of a portion of the surface. A radiation source, upon activation, illuminates the portion of the translucent surface while a control circuit selectively activates both the camera and the radiation source. A processor receives a captured image from the camera and, through image processing, generates an output signal representative of the number of droplets on the portion of the translucent surface.

Abstract: A system for spectral analysis of a multi-wavelength signal is disclosed. The illustrative embodiment of the present invention, like the prior art, uses a grating or prism to disperse the spectral components of a multi-wavelength signal, and then uses a reciprocating or rotating mirror to direct the spectral components, one at a time, into a photodetector. The illustrative embodiment uses a telescope between the grating and the mirror to improve the spectral resolution of the system.

Abstract: In a polarizing plate grading method a first measurement range A1 is chosen on a polarizing plate. After conducting an initial measurement by putting the polarizing plate under X1° C. for Y1 hours, the first measurement range is measured to obtain the maximum chromatic value Z1max (NIT,cd/m), and the minimum chromatic value Z1min. The minimum value is subtracted from the maximum value to obtain the net chromatic difference value W1. The temperature change measurement is conducted by putting the polarizing plate under X2° C. for Y2 hours and, then, the recovery measurement is conducted on the polarizing plate by putting the polarizing plate under X3° C. for Y3 hours. A first measurement range is measured to obtain the maximum chromatic value Z3max and the minimum chromatic value Z3min. The minimum chromatic value is subtracted from the maximum chromatic value to obtain the net chromatic difference value W3.