Time filter

Source Type

Patent
Electro Scientific Industries Inc. | Date: 2016-08-10

Employing laser scanning directions (20) that are oblique to and against a predominant gas flow direction (25) equalize the quality and waviness characteristics of orthogonal scribe lines (26) made by the laser scans. Positioning and sequence of multiple scan passes to form a feature wider than the width of a scribe line (26) can be controlled to enhance quality and waviness characteristics of the edges of the feature.


Patent
Electro Scientific Industries Inc. | Date: 2017-01-04

A panel with an optically transmissive portion includes a group of holes drilled from one surface to another surface and filled with an optically transmissive material. The group of holes forms a pattern. The holes on a first surface form a smooth and continuous appearance to the naked eye. The holes on the other, second surface are sized so that a light source directed to the second surface illuminates the pattern to be visible to a viewer viewing the first surface. The panel may form a portion of a housing that houses the light source.


Patent
Electro Scientific Industries Inc. | Date: 2017-06-28

One embodiment of the present invention can be characterized as a method for controlling a multi-axis machine tool that includes obtaining a preliminary rotary actuator command (wherein the rotary actuator command has frequency content exceeding a bandwidth of a rotary actuator), generating a processed rotary actuator command based, at least in part, on the preliminary rotary actuator command, the processed rotary actuator command having frequency content within a bandwidth of the rotary actuator and generating a first linear actuator command and a second linear actuator command based, at least in part, on the processed rotary actuator command. The processed rotary actuator command can be output to the rotary actuator, the first linear actuator command can be output to a first linear actuator and the second linear actuator command can be output to a second linear actuator.


Patent
Electro Scientific Industries Inc. | Date: 2017-03-15

An inspection system that is effective to collect images of a part (7) under inspection. This inspection system includes (a) a three axis linear motion stage (10); (b) a rotary fourth axis stage (11) configured to hold and rotate an object (7) to be inspected. This rotary fourth axis stage (11) is mounted on the three axis linear stage (10); (c) a fifth axis camera (1) and optical system (4) mounted to one of the axes of the three axis linear motion stage (10). This fifth axis camera (1) has an optical axis substantially parallel to the axis of linear motion; (d) a 45 degree mirror (6) configured to bend the optical axis of the fifth axis camera (1) by 90 to point towards the object (7); and (e) a motor (3) configured to rotate the mirror (6) over a range of angles to obtain a fifth axis of viewing orientation.


Patent
Electro Scientific Industries Inc. | Date: 2017-03-15

Each data point within a two-dimensional code can be represented by a distribution of spots (32). Each spot (32) can be made small enough to be invisible to the human eye so that the two-dimensional code can be invisible on or within transparent or nontransparent materials. The spots (32) can be spaced at a large distance (s) to increase the signal-to-noise ratio for an optical code reader. A code reader can be adapted to read the spots (32) and determine the data points.


Patent
Electro Scientific Industries Inc. | Date: 2016-06-14

Numerous embodiments concerning methods and apparatus for processing a workpiece are disclosed. In one embodiment, an electronic display device having a plurality of viewing elements is provided, wherein a viewing element includes a color element and at least one viewing element exhibits a bright pixel defect. The color element of the viewing element exhibiting the bright pixel defect can be darkened by irradiating the color element with at least one laser pulse having a pulse duration in a range from 1 ps to 40 ps.


Patent
Electro Scientific Industries Inc. | Date: 2016-02-26

A laser processing system includes a first positioning system (1044) for imparting first relative movement of a beam axis along a beam trajectory (1062) with respect to a workpiece (1060), a processor for determining a second relative movement of the beam axis (1061) along a plurality of dither rows, a second positioning system (1042) for imparting the second relative movement, and a laser source (1046) for emitting laser beam pulses. The laser beam pulses of individually selected energies can be directed to individually selected transverse spot locations (5310) one or more times during a primary laser pass to permit three-dimensional patterning. The laser beam pulses can also be directed to the spatially identical, overlapping, or non-overlapping neighboring spot area locations on the workpiece in a temporally nonsequential order.


Patent
Electro Scientific Industries Inc. and Center Technologique Optique Et Laser | Date: 2016-06-13

A method for forming features in a substrate includes irradiating a substrate with a beam of laser pulses, wherein the laser pulses have a wavelength selected such that the beam of laser pulses is transmitted into an interior of the substrate through a first surface of the substrate. The beam of laser pulses is focused to form a beam waist at or near a second surface of the substrate, wherein the second surface is spaced apart from the first surface along a z-axis direction, and the beam waist is translated in a spiral pattern extending from the second surface of the substrate toward the first surface of the substrate. The beam of laser pulses is characterized by a pulse repetition rate in a range from 20 kHz to 3 MHz, a pulse duration, a pulse overlap, and a z-axis translation speed.


Patent
Electro Scientific Industries Inc. | Date: 2016-06-21

One embodiment of the present invention can be characterized as a method for controlling a multi-axis machine tool that includes obtaining a preliminary rotary actuator command (wherein the rotary actuator command has frequency content exceeding a bandwidth of a rotary actuator), generating a processed rotary actuator command based, at least in part, on the preliminary rotary actuator command, the processed rotary actuator command having frequency content within a bandwidth of the rotary actuator and generating a first linear actuator command and a second linear actuator command based, at least in part, on the processed rotary actuator command. The processed rotary actuator command can be output to the rotary actuator, the first linear actuator command can be output to a first linear actuator and the second linear actuator command can be output to a second linear actuator.


Patent
Electro Scientific Industries Inc. | Date: 2016-02-18

A laser system (112, 1300) modifies a large area on an article (100) by employing a beamlet generator (1404) to provide a plurality of beamlets (1408) to a beamlet selection device (2350) whose operation is synchronized with movement of a beam steering system (1370) to variably select a number and spatial arrangement of beamlets (1408) to propagate a variable pattern of spot areas (302) to the article (100).

Loading Electro Scientific Industries Inc. collaborators
Loading Electro Scientific Industries Inc. collaborators