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Altendorf
Eric Altendorf, Everett, WA US
| Patent application number | Description | Published |
|---|---|---|
| 20080239278 | CHROMATIC SENSOR LENS CONFIGURATION - A chromatically dispersive lens configuration may be utilized in optical pens for chromatic range sensing. The lens configuration may include a negative power doublet lens and a positive power lens portion. The Abbe numbers of lenses included in the positive power lens portion may be between the Abbe numbers of the two portions of the doublet lens. The relationship between the Abbe numbers of the materials used in two portions of the doublet lens is generally opposite to their relationship as used in standard doublet lenses of similar geometry. The doublet lens may have a negative spherical aberration which effectively cancels a positive spherical aberration that arises in the positive lens portion. In one embodiment all of the lens elements in the lens configuration are spherical lenses. The lens configuration can be implemented with dimensions which fit a standard commercial optical pen, while providing improved range sensing performance. | 10-02-2008 |
Eric H. Altendorf, Everett, WA US
| Patent application number | Description | Published |
|---|---|---|
| 20110031383 | LENS ABERRATION CORRECTION IN A DOUBLY TELECENTRIC DISPLACEMENT SENSOR - A method and apparatus for suppressing loss of scale image contrast due to interference effects from optical path length differences, including lens profile aberrations, are provided in a displacement sensing optical encoder that uses a telecentric imaging configuration. According to the invention, the encoder is configured such that the image light that reaches the detector comprises symmetric ray bundles concentrated symmetrically on opposite sides of the optical axis center at the limiting aperture of the telecentric imaging configuration. Central ray bundles, and/or other ray bundles that have an optical path lengths significantly different than the operational symmetric ray bundles are prevented or blocked. As a result destructive interference is prevented and image contrast is improved. | 02-10-2011 |
Eric Herbert Altendorf, Everett, WA US
| Patent application number | Description | Published |
|---|---|---|
| 20090152440 | EXTENDED RANGE FOCUS DETECTION APPARATUS - An extended range focus sensor is provided. In various embodiments, the focus sensor may include a relay lens assembly to image a plane between an objective lens and the relay lens arrangement to a plane near an entrance pupil of a focus detector arrangement of the focus sensor. In some embodiments, the objective lens pupil is imaged onto the focus detector entrance pupil. In some embodiments, an illumination beam passes through the relay lens arrangement and is magnified on its way to be output by the objective lens, and the reflected focus detection beam passes back through the objective lens and the relay lens arrangement and is reduced prior to being input to the focus detector arrangement. In some embodiments, the focus detector arrangement may comprising a broad range focus detector combined with a high resolution Shack-Hartmann focus detector, and in others a single extended range Shack-Hartmann focus detector is used. | 06-18-2009 |
Matthias Altendorf, Lörrach DE
| Patent application number | Description | Published |
|---|---|---|
| 20090211330 | Method for ascertaining volume -or mass- flow of a medium - A method for ascertaining volume- or mass-flow of a medium in a pipeline, or measuring tube, of radius (r) via a sound entrainment method, wherein ultrasonic measuring signals are transmitted and/or received along a plurality of defined sound paths (m). During a calibration phase, successive, different flow profiles (v(r)) of a measured medium are established in the pipeline, or in the measuring tube, and wherein, for each flow profile (v(r)), a defined volume flow, or a defined mass flow, is ascertained, wherein, on the basis of measured values (v) | 08-27-2009 |
| 20110179881 | Method for determining the mass flow through a coriolis mass flowmeter arranged on a rotating filling element - In a method for determining mass flow with a Coriolis mass flow measuring device arranged on a rotary filler, a correction value Δ{dot over (m)} is ascertained, which is proportional to the RPM n of the rotary filler. This correction value is subtracted from the conventionally ascertained value {dot over (m)} of the mass flow. The corrected measured value {dot over (m)} | 07-28-2011 |
Matthias Altendorf, Lörrach DE
| Patent application number | Description | Published |
|---|---|---|
| 20090211330 | Method for ascertaining volume -or mass- flow of a medium - A method for ascertaining volume- or mass-flow of a medium in a pipeline, or measuring tube, of radius (r) via a sound entrainment method, wherein ultrasonic measuring signals are transmitted and/or received along a plurality of defined sound paths (m). During a calibration phase, successive, different flow profiles (v(r)) of a measured medium are established in the pipeline, or in the measuring tube, and wherein, for each flow profile (v(r)), a defined volume flow, or a defined mass flow, is ascertained, wherein, on the basis of measured values (v) | 08-27-2009 |
Paul Altendorf, Stanton, MN US
| Patent application number | Description | Published |
|---|---|---|
| 20110191892 | GENETIC MARKERS ASSOCIATED WITH DROUGHT TOLERANCE IN MAIZE - The presently disclosed subject matter relates to methods and compositions for identifying, selecting, and/or producing drought tolerant maize plants or germplasm. Maize plants or germplasm that have been identified, selected, and/or produced by any of the methods of the presently disclosed subject matter are also provided. | 08-04-2011 |