Matches 651 - 700 out of 873 < 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 >
Match Document Document Title
4961646 Manual device for the detection of optical reflection properties  
A manual device for the detection of photometric data which includes a measuring head to illuminate a measuring surface and to detect the light reflected. The measuring light captured by the...
4959244 Temperature measurement and control for photohermal processes  
The temperature of a surface undergoing a radiation assisted thermally driven process is sensed by observation of the thermal emission from that surface and used to control the process. In a...
4958928 Photodiode array spectrometer  
A photodiode array spectrometer comprises an arry (40) of photosensitive elements for receiving a beam of light. Light impinging on a photodiode causes discharging of the associated capacitors. The...
4954972 Color signature sensor  
A color signature sensor for color recognition or discrimination utilizing a spectral analysis system for use as a process control for automation and on-line quality assurance. An object to be...
4950077 Photoelectric measuring apparatus for use in automatic analyzer  
A photoelectric measuring apparatus for use in an automatic chemical analyzer in which a plurality of test items are analyzed by using light beams having different wavelengths, including a white...
4948256 Optical fiber type colorimeter  
This invention relates to a optical fiber type colorimeter, and in particularly it refers to a colorimeter which uses optical fibers to transmit light to sample or reference matter. Scattered light...
4944594 Apparatus and method for measuring dark and bright reflectances of sheet material  
Apparatus (10) and methods for measuring dark and bright reflectances of translucent sheet material (2) are disclosed. The apparatus (10) comprises first optical means for illuminating one side of...
4944589 Method of reducing the susceptibility to interference of a measuring instrument  
A method of reducing the susceptibility to interference of the measured value from a measuring instrument. The measuring instrument is of such a type where a test object is subjected to...
4940325 Device for the investigation of highly resolved partial spectra of an echelle spectrum  
The invention refers to a device for investigating highly resolved partial spectra of an echelle spectrum, being applicable to the simultaneous determination of the intensities of different...
4936684 Spectrometer with photodetector array detecting uniform bandwidth intervals  
In a color measuring spectrometer employing a reflecting grating and a linear array of photodetectors for measuring different components of a spectrum, the width of the photodetectors varies...
4930892 Photodiode array spectrometer  
A photodiode array spectrometer for determining the spectral composition of a plychromatic beam of radiation comprises diffraction means (10) which generate from the polychromatic beam a diffracted...
4929084 Measuring head  
A measuring head, in particular a manual device for the determination of photometric data, includes an optical illuminating device with an aspherical mirror having a groove which extends in an...
4922309 Spectroscope  
An optical waveguide having a detour is disposed at either or both of the light-receiving and light-emitting ends of a dispersion optical system in a spectroscope. Even though light being...
4921350 Monochromator second order subtraction method  
In an optical system for measuring sample absorption of light at a primary wavelength output from a monochromator, a method of subtracting the effect of secondary wavelength components of light...
4919537 UV scanning system for centrifuge  
A centrifuge sample is optically scanned during centrifuging. The sample, placed in a centrifuge rotor having a cell with top and bottom windows, is spun until stratification and discrete layering...
4917495 Portable colorimeter and method for characterization of a colored surface  
A portable colorimeter for characterizing the optical properties of a colored surface and in particular a colored surface containing metallic or pearlescent particles, which employs three...
4917492 Spectrum measuring apparatus  
In addition to obtaining a spectrum of a measuring spot of an object, a spectrum measuring apparatus comprises a TV camera for picking-up a total image of the object. Signals corresponding to the...
4898467 Spectrometer apparatus for self-calibrating color imaging apparatus  
Spectrometer apparatus, for self-calibrating a color image scanner of the line scanner or area scanner type, comprises a member, having an optical slit, movable into position on an optical axis of...
4896963 Automatic analyzer  
An automatic analyzer of a single-line and multi-item type having a circular reaction line along which a number of reaction vessels are transported in the stepwise manner, and a photometering...
4895445 Spectrophotometer  
A spectrophotometer for operating in the reflection or transmission mode includes a collecting lens for directing non-collimated light from the sample being analyzed onto a diffraction grating. An...
4893259 Standardization of spectral lines  
A method and apparatus for standardizing spectral line intensities in a spectral monochromator separate an input beam into a sample spectral line characteristic of a sample element, a reference...
4886355 Combined gloss and color measuring instrument  
In an optical instrument for spectroscopically measuring color and gloss of a sample surface, a fiber optic probe is provided wherein light is transmitted from a light source to the probe through a...
4886341 Diffraction grating having a plurality of different grating constants  
In a diffraction grating grooves having at least two kinds of grating constants are alternately arranged so as to repetitive at a constant period.
4875773 Optical system for a multidetector array spectrograph  
An optical system for a multidetector array spectrophotometer which includes multiple light sources for emitting light of selected wavelength ranges and means for selectively transmitting the...
4867563 Spectroradio-meter and spectrophotometer  
To provide sufficient sensitivity, spectral resolution and speed of measurement for field environmental measurements in a portable spectroradiometer, a silicon photodiode receives light: (1) having...
4866644 Optical instrument calibration system  
In a calibration system for optical instruments of the type which make measurements at incrementally spaced wavelengths throughout a spectrum, a plurality of standard samples are measured by a...
4856898 Adjustable echelle spectrometer arrangement and method for its adjustment  
An adjustable Echelle spectrometer arrangement which can be used in single- and multi-element analysis by the emission or absorption of optical radiation. To compensate all the manufacturing and...
4852079 Optical spectral analyzer  
An optical spectral analyzer (10) for receiving an input beam (30) through a multi-mode optic fiber (28). The input or beam (30) has a predetermined spectral band width. The random individual...
4850706 Low profile spectral analysis system  
A spectral analysis system which may operate as a spectrograph or monochromator comprises a folded optical path within a housing wherein the optical input is provided on one side and the optical...
4844617 Confocal measuring microscope with automatic focusing  
A confocal measuring microscope including a spectrometer and autofocus system sharing common optical elements in which the intensity of light entering the spectrometer from a particular spot on a...
4842353 Diffraction apparatus with correcting grating and method of making  
A method of making a corrected plane holographic grating within one band of wavelengths, intended for use in a diffraction apparatus in which light emitted by an entry source (1) is collimated by a...
4841140 Real-time color comparator  
A real-time color comparator which performs color comparisons of sample objects to a reference color for the purpose of identification, sorting or matching. Two optical paths are positioned to...
4838691 Method and apparatus for determining calibration accuracy of a scientific instrument  
A calibration method and apparatus for economical and rapid calibration of a scientific instrument utilizing a monochromator to generate monochromatic light utilizing controllable means for...
4838645 Reflecting diffraction grating  
An unmetallized grating is mounted on an optically transparent body is subjected to radiation which passes through the body and strikes the flanks of the grating grooves at an angle that is larger...
4836674 Method and apparatus for determining color, in particular of a dental prosthesis  
The invention can be used to determine the color to be given to a dental prosthesis, for example, on the basis of color measurements performed on adjacent teeth in the mouth of the patient. An...
4830493 UV scanning system for centrifuge  
A centrifuge sample is optically scanned during centrifuging. The sample, placed in a centrifuge rotor having a cell with top and bottom windows, is spun until stratification and discrete layering...
4828387 Film measuring device and method with internal calibration to minimize the effect of sample movement  
A method and apparatus for analysing the spectrum of light reflected by a reflecting structure (24) in which the effect upon the analysis results of variation in the angle between the reflecting...
4820048 Detector for a spectrometer  
A novel solid state array detector is useful in an optical spectrometer of the type that includes a crossed dispersion system receptive of radiation for producing a pair of two dimensional displays...
4820046 Spectroscope apparatus and reaction apparatus using the same  
A spectroscope apparatus includes means for separating light from an object to be measured into spectral components, means for mixing that part of the spectral components which exists in a desired...
4815849 Spectrometer using concave holographic diffraction grating  
A spectrometer including a source of light, a slit member along the path of the light emitted from the source, a holographic, concave grating in the path of the light passing through the slit...
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...
4812657 Multiunit tube and a spectrophotometer  
The inside of a casing of a multiunit tube is divided into two chambers by a partition wall. The partition wall is formed with an opening through which light is transmitted. A deuterium lamp for...
4807994 Method of mapping ion implant dose uniformity  
A method of mapping implanted ion dose uniformity is disclosed in which wafers of polysilicon-on-silicon or polysilicon-on-oxidized-silicon are implanted with the ion dose to be mapped and then...
4807991 Method of inspecting and repairing a structural defect in the surface of an object  
A method and apparatus are provided for mapping the surface morphology of an object in order to detect and repair structural defects in the object or to distinguish surface features. A beam of...
4804266 Continuously rotating grating rapid-scan spectrophotometer  
A system for rapid-scan spectral analysis comprising a concave holographic diffraction grating continuously rotated at a substantially constant angular velocity to provide a rapid scanning...
4802763 Measuring apparatus for characterizing a surface having color directional reflectance properties  
A measuring apparatus includes a freely moving measuring head which is connected to a stationary base unit via light conductors and an electrical cable. The radiation reflected from the sample is...
4798464 Scanning array spectrophotometer  
The advantage of sustained wavelength accuracy and mechanical simplicity of a spectrophotometer using a photodiode array as photometric detector and a fixed diffraction grating as dispersion means...
4795257 Polychromator for multi-element analysis  
A Rowland circle-type polychromator with the Rowland circle arc pivotally connected to the concave grating. Separate adjustments are provides for shifting the spectral lines and focussing. A tie...
4794258 Spectroanalytical gas measuring apparatus  
A spectroanalytical gas measuring apparatus has a radiation source (36), a transmitting condensor (19), an objective (13) and a beam divider (11) which deflects at least a part of the radiation...
4790654 Spectral filter  
Within a surveillance system there is included optical processor means for receiving a multispectral light image at an input and providing a spectrally modified image at an output, which comprises:...
Matches 651 - 700 out of 873 < 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 >