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| Number | Title | Issue Date |
| 4834945 | High resolution cinephotographics system pressure vessel A propellant sample combustion apparatus employing a multiply optical ported pressure vessel for sample illumination, sample viewing, and sample burn face elevation is described. High-speed motion picture filming using short-duration high-intensity laser ... | 05/30/1989 |
| 4830489 | Three dimensional laser beam survey system A laser beam alignment system includes a transmitter which establishes a laser reference plane by continuously rotating a horizontal laser beam about the transmitter. A remotely located receiver senses the elevation of the laser reference plane and reflec... | 05/16/1989 |
| 4815842 | Spectrograph for evaluating contamination of optical components in space A monochromatic spectrometer for evaluating contamination changes in the surface condition of lenses, reflectors and similar optical samples in the vacuum of a space mission includes a vacuum ultraviolet beam source redirected from a dispersion grating th... | 03/28/1989 |
| 4810090 | Method and apparatus for monitoring blood components Monitoring concentration of components of blood flowing through a flowpath including flowing the components through a transparent channel, directing light to the channel along an axis intersecting the channel, detecting light passing through the channel a... | 03/07/1989 |
| 4808828 | Method of and apparatus for simultaneous determination A method of and an apparatus for simultaneous determination of constituents are disclosed in which a solution containing trace constituents is irradiated with an intensity-modulated electromagnetic wave having a predetermined wavelength, a photoacoustic s... | 02/28/1989 |
| 4790653 | Housing for a flow cytometry apparatus with particle unclogging feature A housing for a particle flow-through apparatus comprises a body member having a passageway therethrough including a region through which substantially one particle at a time may pass in a normal direction of flow. An operative plunger is positioned in th... | 12/13/1988 |
| 4786169 | Optical analytical instrument for testing the transmission and reflection of a sample An analytical instrument includes an optical system having a source of incoming radiation (11) which in a transmission test is focused by a primary focusing element (15) onto a sample (16). The radiation transmitted through the sample is collimate by a fo... | 11/22/1988 |
| 4784488 | Modular radiation transmission apparatus for spectrometers A modular spectrometer system is disclosed which includes various types of standard building blocks which permit: (a) a multiple accessory system in which experiments can be readily switched from one accessory to another; and (b) easy and cost effective r... | 11/15/1988 |
| 4781459 | Apparatus for measuring the amount of minute particles contained in liquid An apparatus for measuring particles contained in a sample liquid has a cylindrical cell having an incident light transmitting portion, a transmitted light transmitting portion diametrically aligned with the incident light transmitting portion, and a ligh... | 11/01/1988 |
| 4768390 | Instrument for measuring the photosynthetic activities of plants An instrument (2) for simultaneously measuring a plurality of parameters indicative of photosynthetic activity of a leaf in vivo comprises: (a) a gas tight chamber (4) for enclosing the leaf (5), (b) light emitting diode means (10) for illuminating the leaf within ... | 09/06/1988 |
| 4768513 | Method and device for measuring and processing light A method and device for measuring and processing light whereby laser light is irradiated onto positions of an organism which has been injected with a fluorescent substance having a strong affinity for tumors, the fluorescence and the reflected light produ... | 09/06/1988 |
| 4767924 | Apparatus for optical monitoring with a high pressure lamp connected to a fiber optic cable An apparatus for optical monitoring of the surface of rod-shaped smoking articles and/or filter rods for the tobacco industry comprises a conveying means transporting the rods perpendicularly to their longitudinal direction and a high-pressure lamp which ... | 08/30/1988 |
| 4767206 | Calibration method for flow cytometry using fluorescent microbeads and synthesis thereof A method of calibrating a flow cytometer is based on a set of highly uniform microbeads associated with a fluorescent dye in such a way that the microbeads have the same excitation and emission spectral properties as the samples which are to be measured. ... | 08/30/1988 |
| 4765737 | Cell size measurements using light in flow cytometry and cell sorting In a flow cytometer where the laser beam is larger than the size of each biological cell of a column of cells being passed through the laser beam at a high rate wherein new and improved method and means are used to calculate the size of the cells as sense... | 08/23/1988 |
| 4764009 | Means for extending spectral response of spectral analyzing direction indicating apparatus A spectral analyzer and direction indicator is disclosed and is responsive to collimated or essentially collimated incident radiation. The spectral analyzer and direction indicator includes optical apparatus (13, 15, 113) for providing optical information... | 08/16/1988 |
| 4762412 | Optical scanning device An optical scanning device, such as a chromatoscanner, includes a spectroscope having a rectangular outlet slit for producing a light beam in the shape thereof. A rotatable disk having a spiral slit is disposed in the path of the light beam to produce lig... | 08/09/1988 |
| 4753530 | Analytical optical instruments An optical measuring system for measuring in situ by means of one or more fiber-optic probes reflection absorption fluorescence, phosphorescence and turbidity of a fluid or (for all but the last measurement) of a fluid-solid interface. High intensity puls... | 06/28/1988 |
| 4744663 | Pattern position detection apparatus using laser beam A pattern position detecting apparatus using a laser beam which is used for the recognition of an edge position, line width, etc., of a circuit pattern on a semiconductor wafer used in the fabrication of semiconductor devices. The apparatus includes an op... | 05/17/1988 |
| 4737025 | Flow chamber device for flow cytometers The present invention relates to a device which facilitates that biological cells and other microscopical particles, carried by a microscopial laminar fluid flow, are brought one by one across the open surface of a plane glass with a velocity which may be... | 04/12/1988 |
| 4730922 | Absorbance, turbidimetric, fluorescence and nephelometric photometer An absorbance, turbidimetric, fluorescence, and nephelometric photometer is constructed by providing a sample cell having a rectangular absorbance/turbidimetric cross-section for radiation. The cells exit aperture is positioned to be the entrance aperture... | 03/15/1988 |
| 4727020 | Method for analysis of subpopulations of blood cells A method for identifying and enumerating cells of a subclass of blood cells in relation to cells of another subclass of blood cells is provided. In the method a first subclass of blood cells is selectively tagged by incubating an aliquot of a blood sample... | 02/23/1988 |
| 4720463 | Automated microbiological testing apparatus An incubation chamber for incubating a number of microbiological test trays such as susceptibility trays and identification trays holds a number of tray carriers in a pair of stacks. An elevator is provided to move any given carrier to a position at which... | 01/19/1988 |
| 4715708 | Particle analyzing apparatus with index projecting optical system for detecting a focusing state of the measuring system In an apparatus for analyzing a particle flowing in a flow section of a flow cell, at least two non-parallel index beams are projected onto the flow cell to detect a focusing state of a measuring optical system with respect to the flow section, the beams ... | 12/29/1987 |
| 4712912 | Spectrophotometric image scrambler for full aperture microspectroscopy The optical system of the present invention comtemplates directing a beam of radiant energy to either an aperture beam splitter or polarizing beam splitter. Radiant energy from the beam splitter forms a first remote image at an entrance to an image scramb... | 12/15/1987 |
| 4710021 | Particulate matter analyzing apparatus and method A method and apparatus for jetting a measured volume of a suspension of particulates such as blood cells or colloids into a single fluid-primed incompletely partitioned transducer chamber in such a way that the dynamic relationship between the priming liq... | 12/01/1987 |
| 4707147 | Device for measuring plasma properties A device for measuring properties of plasma projects linearly polarized light to an object plasma as incident light, and the light coming from the plasma in response to the incident light is separated into an S-polarized component and a P-polarized compon... | 11/17/1987 |
| 4707131 | Optical arrangement for photometrical analysis measuring devices An optical arrangement in photometrical measuring devices for use in fluorescence and absorption measurements, extinction, nephelometrical and turbidimetrical measurements comprises a light source for emitting a monochromatic radiation, a field aperture f... | 11/17/1987 |
| 4702598 | Flow cytometer A flow cytometer and a method for determining properties of single cells or other particles including passing stream of particles through a zone of analysis where a light source directs a beam of light to perpendicularly intersect the stream of particles ... | 10/27/1987 |
| 4699510 | Color sensor An improved color sensor is provided having two sources of illumination, one source being modulated on and off while the other source remains on. Data taken while the modulated source is on is compared with data taken while the modulated source is off to ... | 10/13/1987 |
| 4693600 | Optical beam analyzer A system for analyzing the characteristics of a light beam is disclosed. Functionally, the system includes an optical system for collecting the light beam to be analyzed. An array of light-sensitive elements is positioned at the focal plane of the optical... | 09/15/1987 |
| 4692690 | Pattern detecting apparatus A pattern detecting apparatus for inspecting a printed wiring board is disclosed in which a fluorescent image formed by the fluorescent light from the substrate of the printed wiring board and an image formed by the reflected light from the wiring pattern... | 09/08/1987 |
| 4690561 | Particle analyzing apparatus There is disclosed a particle analyzing apparatus having an irradiating optical system for irradiating a particle to be examined, flowing in a flow section of a flow cell, with a light beam, a measuring optical system for measuring the light scattered by ... | 09/01/1987 |
| 4683212 | Random access single channel sheath stream apparatus An apparatus and method are provided for the precisely controlled and coordinated, concomitant supply at optimal flow rates, by differential pumping, of selected sample and sheath liquids from respective pluralities of different sources thereof, to the sa... | 07/28/1987 |
| 4682888 | Spectral analyzer and direction indicator Spectral analyzer and direction indicator systems (10,20,30,40,50) are disclosed and include optical elements (11,17,27b,33b,35b,39b) for providing optical information which depend on incidence direction and spectral content, and further includes optical ... | 07/28/1987 |
| 4678326 | Apparatus for the measurement of fluorescence, turbidity, luminescence or absorption An apparatus for measuring optical properties such as fluorescence, luminescence or absorption by a liquid sample includes collimating lenses disposed adjacent a cuvette so that their optical axes coincide with the central axis of the cuvette. A fiber bun... | 07/07/1987 |
| 4678325 | Apparatus for measuring optical properties of paper The available equipment for measuring optical properties of paper are inconvenient in use and calibration thereof is inaccurate. In addition, properties of a sample are not analyzed sufficiently. According to the invention, a background screen (2) of an a... | 07/07/1987 |
| 4674871 | Spectral analyzer and direction indicator A spectral analyzer and direction indicator and direction indicator (10,20) is disclosed and includes reflection gratings (13,15,25,27,37,39), associated optical systems (17,19,29,33,41,45) and associated detectors (21,23,31,35,43,47,30). The reflection g... | 06/23/1987 |
| 4669885 | Apparatus for inspecting negatives Disclosed is an apparatus for inspecting negatives which is provided with a laser beam generating source, a scanner for scanning the laser beam, a holding device for holding a negative having a pattern formed in a reflective area on a first surface of a t... | 06/02/1987 |
| 4669873 | Spectrophotometer A spectrophotometer obtains transmitted, reflected, or radiated light from at least two measuring points on at least one object and a spectroscopic light disperser disperses the obtained light spectroscopically to measuring cells for electrically indicati... | 06/02/1987 |
| 4662742 | Scatter/fluorescene beam splitter in a flow cytometry apparatus A flow cytometry apparatus for determining one or more characteristics of particles or the like flowing in a liquid stream includes a nozzle for generating a liquid flow stream for moving particles therethrough substantially one at a time. A light source ... | 05/05/1987 |
