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7502116 |
Densitometers and methods for measuring optical density
Methods for measuring optical density are described. The color on an area is determined. Based on the color, at least a first illumination source is selected. The area is illuminated with the...
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7456971 |
Optical gas sensing apparatus
An optical gas sensing apparatus for sensing gas includes a tubular housing member, a column light source member, a column light sensing element member and an adhesive. The tubular housing member...
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7430046 |
Pathogen and particle detector system and method
A particle detector has a sample area of cross section no in excess of about 2 mm for containing environmental fluid, a light source on one side of the sample area for directing a collimated or...
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7151603 |
Overhead transparency clarity simulator
A method and apparatus for evaluating the scattering properties of a transparency image comprises projecting radiation through the transparency image to form a transmitted beam of radiation;...
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7035437 |
Image reading apparatus
The image reading apparatus for photoelectrically reading an original image includes an image reading device and a detection device. The image reading device has first reading unit for reading a...
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6927859 |
Microdensitometer system with micrometer resolution for reading radiochromic films
Radiation dose deposited on a radiochromic film is considered as a dose image. A precise image extraction system with commensurate capabilities is required to measure the transmittance of the dose...
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6903824 |
Laser sensitometer
An optical apparatus. More particularly, a laser sensitometer. The apparatus comprises: a polarized light source adapted to provide a Gaussian beam of light directed along an optical axis; a...
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6897958 |
Apparatus and method for inspecting light transmittable material
In an inspection device, an inspection light projector and an auxiliary light emitter respectively project an inspection light and auxiliary light onto a position of a filmstrip. After transmitting...
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6661518 |
Analysis machine for analyzing a cleanness condition of perforated transparent strips
An analysis machine for analyzing the cleanness condition of perforated strips enables a direct non-destructive measurement, without image conversion, of pollution by particles on the surface of...
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6559939 |
Method of high throughput haze screening of material
Disclosed are apparatus and associated methods for determining haze for various materials. More particularly, an efficient, high throughput screening methodology for the determination of haze of a...
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6522385 |
Air shower head of photolithography equipment for directing air towards a wafer stage
An air shower head of an exposure device of photolithography equipment is free of chemical substances that could otherwise contaminate a photoresist layer on a semiconductor wafer and degrade the...
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6509575 |
Method and apparatus for polarization filtered x-ray film scanning recording
An imaging recording method and an apparatus for its implementation, including applying a light to an image to produce imaged light, passing the imaged light through a filter unit to provide...
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6476910 |
Light scattering apparatus and method for determining radiation exposure to plastic detectors
An improved system and method of analyzing cumulative radiation exposure registered as pits on track etch foils of radiation dosimeters. The light scattering apparatus and method of the present...
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6236461 |
Laser sensitometer using multiple-prism beam expansion and a polarizer
An electro-optical apparatus particularly suitable for exposing a sample of light sensitive material to provide a graded series of exposures of different intensity levels. The apparatus includes a...
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6128090 |
Visual control strip for imageable media
A visual control strip for imageable media such as a printing plate, a photographic film or a printable substrate is described wherein the visual control strip is to be applied to the imageable...
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6058202 |
Method of determining exposure condition of photograph
A histogram of densities represented by image signal components of an image signal obtained by reading out an image from a photographic film is created. The density at a particular point on the...
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6035148 |
Shuttering system for a sensitometer
A shuttering system for a sensitometer is taught which can be used both conventional and high speed exposures. The shuttering system includes a high speed rotating sector shutter, a rotating...
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5875022 |
Film image detection device and method
There is provided a film image detection method, comprising the steps of measuring densities at a large number of measurement points arranged along a first direction and a second direction crossing...
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5753930 |
Device for translating negative film image to a line scan
A negative film reader records high-resolution optical density changes across negative film radiographic images to allow precise image dimensions to be determined. A laser light source capable of...
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5686210 |
Identification of image-forming material type
Described herein is a method and apparatus for identifying image-forming material type, particularly photographic material types. The method comprises illuminating a sample of the material at a...
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5677762 |
Apparatus for illumination stabilization and homogenization
An illumination device provides temporally, spatially and angularly stable illumination for microscopic evaluations. An arc lamp serves as the light source. An input optical train gathers and...
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5673098 |
Feed device for motion picture film and device for detecting abnormalities in perforations
A controller uses image processing to detect any abnormalities in the shape and distance of the perforations of a motion picture film by means of image data obtained upon imaging the perforations...
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5664252 |
Apparatus for use in optimizing photographic film developer apparatus
To provide a standard for determining an objective level of performance of photographic film developer processes, a production sensitometer, of the type commonly used in the field, is correlated...
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5617213 |
Spot microdensitometer for spectral density analysis of film
A spot densitometer system comprising a viewing assembly, a photodetection apparatus optically connected to the viewing assembly, and a computer interface electrically connected to the...
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5571643 |
Spectrophotometric quantitation of images in X-ray film and electrophoresis gel bands
Images comprised of silver such as X-rays and electrophoresis gel bands, wherein the size and darkness of the image provides useful information, are quantitated utilizing a spectrophotometer to...
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5543883 |
Calibration of sensitometers
Sensitometers are used for monitoring photographic and radiographic processes, and then making it possible to control these processes. However, although it is relatively straightforward to obtain...
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5506656 |
Method of and apparatus for measuring the optical density of a photographic negative
A method of and apparatus for measuring the optical density of an original, especially a three-color negative, from which photographic prints are made, to control how much printing light of each...
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5436979 |
Process for detecting and mapping dirt on the surface of a photographic element
A method and associated apparatus for detecting the amount, size, shape, and location of anomalies, such as dirt and scratches, on the surface of a test photographic element after the application...
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5427878 |
Semiconductor wafer processing with across-wafer critical dimension monitoring using optical endpoint detection
A method for across-wafer critical dimension uniformity performance monitoring in the manufacture of semiconductor devices employs a number of optical endpoint detectors at sites at the wafer face...
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5369285 |
Method and apparatus for optical detection of cleaning medium in an information storage drive
A system (20) and method for identification of medium (41) inserted into an information storage drive optically determines whether the medium is cleaning medium by determining the translucency of...
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5283636 |
Image reader and image reading method
The present invention relates to an image reader, such as a color image scanner, which can enhance outline of shapes that occur in an original image 2. The image reader in accordance with the...
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5255069 |
Electro-optical interferometric microdensitometer system
There is disclosed an interferometric system including electro-optical apparatus and method for examining and characterizing ultra fine details of various specimens such as a piece of photographic...
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5245418 |
Method for recording a color image on a medium and reading an image recorded on a medium
A method is disclosed for recording and reading a color image formed on a receiving medium such as a film coated with a blue metastable colloidal silver. Upon application of heat to selected areas...
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5216487 |
Transmissive system for characterizing materials containing photoreactive constituents
A transmissive system for characterizing the photochemical reactivity and solubility properties of materials, such as photoresist, that contain one or more photo-active constituents and that can be...
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5142138 |
Image reader including plural light stopping plates with apertures
An image reader of the present invention is provided with a plurality of photosensitive elements arranged one-dimensionally or two-dimensionally substantially in parallel with an image bearing...
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5117119 |
Auto-ranging film densitometer
A film densitometer for generating digital density values as a function of analog transmittance signals received at an input. A comparator coupled to the input compares the transmittance signals to...
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5111037 |
Device for measuring light scattered by an information support
A device for measuring light scattered by an information support in which a light source is used to expose a portion of the information support. A sensor having a light-sensitive surface and an...
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5066132 |
Method of and apparatus for inspecting paint coating
An apparatus for inspecting a coating formed on a workpiece, comprising a light emitter and a light receiver positioned on respective sides of the workpiece; an amplifier for amplifying a detection...
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5044754 |
Apparatus and method for use in determining the optical transmission factor or density of a translucent element
Apparatus and method are described for determining the transmission factor or the density of a translucent element, such as an optical filter, using the cosine-to-the-fourth law. The apparatus...
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5041995 |
Negative film inspection apparatus
In a negative inspection apparatus for providing exposure correction data, a data input device inputs visual inspection data of film frames, and a frame scanner provides transmitted light data for...
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5030838 |
Quality inspection device for printed matter and method thereof
Light received by a light receiving element in a quality inspection device for printed matter, is controlled to a constant value by passing the received light through a graduated neutral density...
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5021979 |
Calibration apparatus for a light source used for exposing photographic film with image data
Apparatus creates an image on photographic film in which the light intensity of the light source for exposing the film is calibrated to a predetermined value by measuring the light intensity of the...
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5021978 |
Apparatus and method for controlling film density for an apparatus for exposing photographic film with image data
A predetermined gradation of film transmittance levels, e.g. a gray scale, provided by a film exposure system is calibrated so as to consistently create an image on photographic film in accordance...
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4983044 |
Quantitative analysis of biological materials and photogrtaphic film and apparatus therefor
Accurate quantitative determination of signals produced on film by biological molecules of interest, such as DNA and RNA, identified by hybridization with radioactively-labeled probes comprising...
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4946282 |
Transparency transmissivity measurement device
A device for measuring optical transmissivity of a transparency is described which comprises a diffuse light source (Lambertian diffuser) of controllable substantially constant luminance and...
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4906835 |
Light sensing and emitting devices with a safelight
A light sensor for use to detect only light above a given frequency uses as its light sensitive element a light emitting diode. The L.E.D. is one which, if it were arranged to emit light, would...
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4897678 |
Double z-axis translational mounting apparatus for camera in photogrammetry mensuration systems
A mensuration apparatus for converting film images and paper drawings into digital photogrammetric arrays to be computer processed, displayed, mensurated and analyzed. This mensuration apparatus...
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4837450 |
Apparatus for reading a film image with controllable illumination and threshold value
An apparatus for reading a microfilmed image to obtain digital image signal, in which the level of quantizing is determined by measuring the density of image and of background.
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4812411 |
Method of performing medical analyses, and a conditioning strip and apparatus for performing the method
The method in accordance with the invention provides antibiograms or bacteriological identification of colonies of micro-organisms. The method uses a cabinet (1) which supports a set of mechanical,...
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4687943 |
Optical motion picture film inspection system
A motion picture film flaw detection system wherein a single inspection location is employed at which sound track side edge defects, sprocket hole side edge defects, thickness variations, and...
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