Patent
High-efficiency, multilevel, diffractive optical elements
Gary J. Swanson,Wilfrid B. Veldkamp +1 more
- 21 Sep 1987
392
TL;DR: In this article, a photoresist layer on an optical element substrate is exposed through the first mask and then etched, and the process is repeated for the second and subsequent masks to create a multistep configuration.
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Abstract: The method utilizes high resolution lithography, mask aligning, and reactive ion etching. In particular, at least two binary amplitude masks are generated. A photoresist layer on an optical element substrate is exposed through the first mask and then etched. The process is then repeated for the second and subsequent masks to create a multistep configuration. The resulting optical element is highly efficient.
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Citations
Patent
Imaging system for vehicle
Kenneth Schofield,Niall R. Lynam +1 more
- 14 Nov 2003
TL;DR: In this paper, an imaging system for a vehicle includes an imaging device having a field of view exteriorly and forward of the vehicle in its direction of travel, and an image processor operable to process the captured images in accordance with an algorithm.
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Vehicle headlight control using imaging sensor
Kenneth Schofield,Mark L. Larson,Keith J. Vadas +2 more
- 25 Mar 1997
TL;DR: A vehicle headlamp control method and apparatus includes providing an imaging sensor that senses light in spatially separated regions of a field of view forward of the vehicle, such as oncoming headlights and leading taillights as mentioned in this paper.
719
Patent
Vision system for vehicle
Kenneth Schofield,Niall R. Lynam +1 more
- 26 Oct 2015
TL;DR: In this article, a forward-facing vision system for a vehicle includes a forwardfacing camera disposed in a windshield electronics module attached at a windshield of the vehicle and viewing through the windshield.
615
Patent
Vehicular vision system
Kenneth Schofield,Mark L. Larson +1 more
- 16 Jan 2012
TL;DR: In this article, the camera is disposed at an interior portion of a vehicle equipped with the vehicular vision system, where the camera one of (i) views exterior of the equipped vehicle through the windshield of the vehicle and forward of the equipment and (ii) views from the windshield into the interior cabin of the equipments.
576
Patent
Vehicle imaging system with stereo imaging
Brent J. Bos,Kenneth Schofield +1 more
- 12 Aug 1999
TL;DR: In this article, a vehicular stereoscopic imaging system provides a calculation of a distance between one or more sensors on a vehicle and a light source or object in a target scene remote from the vehicle.
520
References
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High resolution imagery systems and methods
Theodore Robert Whitney
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TL;DR: In this article, a blazed transmission grating is introduced to adjust aberrations in the optical system, providing an aligned composite wavefront, which can be used for presenting an image, as for a wafer stepper, or for viewing an image.
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Patent
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Samuel E. Blum,Karen H. Brown,Rangaswamy Srinivasan +2 more
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TL;DR: In this article, a technique for the fabrication of devices and circuits using multiple layers of materials, where patterned layers of resists are required to make the device or circuit, is described by the selective removal of portions of the resist layer by ablative photodecomposition.
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Patent
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Suzuki Shinichi,Takashi Suemitsu,Takashi Niriki +2 more
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