|
Match
|
Document |
Document Title |
|
|
7764366 |
Robotic die sorter with optical inspection system
A robotic die sorter having pick and place arm assemblies and a multi-camera optical inspection system is disclosed. A pick arm of the pick arm assembly picks a die from a semiconductor wafer, and...
|
|
|
7598504 |
Writing error diagnosis method for charged particle beam photolithography apparatus and charged particle beam photolithography apparatus
A writing error diagnosis method for a charged beam photolithography apparatus and a charged beam photolithography apparatus which can specify an error cause within a short period of time in...
|
|
|
7428051 |
Device for the IR-spectrometric analysis of a solid, liquid or gaseous medium
The invention relates to a device for the IR-spectrometric analysis of a solid, liquid or gaseous medium. The device includes a process probe, which has a reflection element. The device...
|
|
|
6049384 |
Method and apparatus for three dimensional imaging using multi-phased structured light
An apparatus for three dimensional imaging using multi-phased structured light. Measurement of dimensions as small as two hundred microns within one percent accuracy is possible, and multiple scans...
|
|
|
5910837 |
Photomechanical transducer
The invention relates to a photomechanical transducer which comprises a photochromic element made of a first material and attached on a carrier element made of a deformable second material. The...
|
|
|
5218428 |
Optical transmittance apparatus for fluids
An optical transmittance apparatus has a pair of reference channels of glass rods and a pair of sample channels containing sample fluid. A beam splitter and mirror pass a first portion of an...
|
|
|
5148233 |
Optical attenuator and optical power meter calibration systems with optical-pulse conversion and averaging
The invention is designed to calibrate a low-level optical power by a substitution method using a pulse generating section in which a light-shielding disk having a sectorial opening, as a component...
|
|
|
4441096 |
Optical analog-to-digital converter
A method and apparatus for converting the intensity of an unknown optical signal (B) into an electrical signal in digital form utilizes two elongated optical attenuators (11, 13), one for the...
|
|
|
4387985 |
Unique copyboard having unique light attenuator
A unique light attenuator is positioned between a bank of lamps and the underside of a light diffuser which supports a subject to be photographed in a process camera, such light attenuator...
|
|
|
4260256 |
Apparatus for measuring illuminance
An apparatus for measuring the intensity of light reflected from a scene along an optical path includes a photoelectric cell, an optical lens and a light-attenuating device that has a gradation of...
|
|
|
3926525 |
Photometric apparatus including a rotatable optical density wedge
A photometric apparatus wherein a reference beam and a measuring beam are modulated by passing them through a light modulating system. The light modulating system comprises an optical density wedge...
|
|
|
3901588 |
Calibrating device for light scatter photometering instrument
A flat sandwich composite plate of nested wedge-shaped sheets of highly transparent and gray neutral density filter glasses is enclosed in a frame. A bracket on the frame mounts it on the carriage...
|
|
|
3746429 |
LINEAR VARIABLE LIGHT ATTENUATOR
A compact variable light beam attenuator adapted for use in laser system. A pair of optical wedges having flat, parallel surfaces are movably mounted in a light beam path. The wedges are movable...
|
|
|
3698294 |
SENSITOMETER APPARATUS
A sensitometer having a replaceable integral exposure source unit including both a constant source of actinic energy and an energy modulator. Because of the fixed relationship between its...
|
|
|
3680965 |
BEAMSPREAD MEASUREMENT CAMERA FOR RECORDING LASER BEAM INTENSITY DISTRIBUTION
Energy distribution within a laser beam is measured and a sample of the insity is obtained, providing a self-calibrated photograph on a single film sample. A burst of laser energy striking a wedge...
|
|
|
3599545 |
PHOTOGRAPHIC CAMERS WITH ELECTRONIC EXPOSURE CONTROL
A photographic camera with electronic exposure control and an exposure time indicator. A time scale is arranged along the length of an elongated light source which provides light at uniform...
|
|
|
3542515 |
DETERMINING REACTION RATES BY SIMULTANEOUS TWO-POINT MEASUREMENTS
|
|
|
3538335 |
LIGHT INTENSITY CONTROLLER FOR PHOTOSENSITIVE PICKUP TUBES
|
|
|
3511574 |
PHOTOMETRIC APPARATUS HAVING AN INTERMITTENT SIGNAL AT A SELECT OUTPUT STATE
|