Purchase
Daniel Purchase, Sussex GB
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20120277857 | Intraocular Lens with Fresnel Prism - An intraocular lens is described which comprises, as one face thereof, a linear Fresnel prism array with facets angled relative to the optical axis of the lens so as to deviate light incident thereon to an off-axis position. The facets are modified so as to reduce at least one of diffraction effects and astigmatism associated with the Fresnel prism. In particular, by varying the pitch of the prism elements across the array, which may comprise varying their size, a diffraction grating effect can be reduced or negated, such that light is not diffracted into undesirable orders and multiple images can be avoided. Furthermore, chromatic angular dispersion associated with the diffraction grating effect may be reduced. The pitch variation can be random. By varying the angle of the facets across the array, astigmatism that would otherwise result from the presence of the Fresnel prism can also be compensated. | 11-01-2012 |
Gary Purchase, Bothell, WA US
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20080244514 | Scriptable object model for network based services - A scripting model may include links to web based services by including an interface associated with each web based service. The interface may perform various functions used to exchange information with a web based service, such as discovery, addressing, connection, configuration, authentication, and other functions. The web based service may be used in a similar manner as a local service within the scripting model, including automatic memory management, bounds checking, data translation, and other features of scripting. | 10-02-2008 |
Gary J. Purchase, Bothell, WA US
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20100058105 | Environment Wide Configuration System - An installation and configuration system consolidates workloads of multiple applications and services, including applications or services that may be installed or configured on multiple server devices or remotely hosted services. The system gathers environmental information, analyzes dependencies among the workloads, and populates the input data used by the workloads from a common database. The system then executes the workloads, allowing branching within the workloads or the sequence of workloads. An example of branching may include detecting an error condition, pausing the sequence, and presenting alternative fixes to a user. | 03-04-2010 |
Ken G. Purchase, Morrisville, NC US
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20100039808 | OPTICAL DIFFUSERS WITH SPATIAL VARIATIONS - A diffuser is configured to diffuse radiation from multiple light sources. The diffuser includes a substrate having optical structures that exhibit both microvariations and macrovariations along the substrate. For example, an array of microlenses may be provided that include at least one feature that varies as a function of the spacing between the light sources. Lighting systems using these diffusers may also be provided. | 02-18-2010 |
20110085241 | TRANSMISSIVE OPTICAL MICROSTRUCTURE SUBSTRATES THAT PRODUCE VISIBLE PATTERNS - A light transmissive structure such as a light diffuser includes a substrate having optical microstructures. The optical microstructures include at least one feature that varies across the substrate, so as to produce a visible indicia relative to a viewer of the light transmissive structure. Related diffusers and methods of fabrication are also described. | 04-14-2011 |
20140022783 | LIGHT TRANSMISSIVE STRUCTURES AND FABRICATION METHODS FOR CONTROLLING FAR-FIELD LIGHT DISTRIBUTION - Light transmissive structures include a light transmissive substrate that includes optical microstructures. The optical microstructures have a geometric feature that is configured to reduce glare in light transmitted through the light transmissive structure. Moreover, the plurality of optical microstructures also have a geometric feature that is configured to vary randomly and/or pseudorandomly across the light transmissive substrate so as to diffuse light transmitted through the light transmissive structure. Related fabrication methods are also described. | 01-23-2014 |
20140376220 | MICROSTRUCTURE-BASED OPTICAL DIFFUSERS FOR CREATING BATWING AND OTHER LIGHTING PATTERNS - A light transmissive structure includes a light transmissive substrate having first and second opposing faces and array of microprism elements on the first face, with a respective microprism element including a plurality of concentric microprisms. The light transmissive structure is configured to receive light from a light source facing the first face and distribute the light emerging from the second face in a 2D batwing distribution. | 12-25-2014 |
20150029717 | SHAPED MICROSTRUCTURE-BASED OPTICAL DIFFUSERS FOR CREATING BATWING AND OTHER LIGHTING PATTERNS - A light distribution device includes a light transmissive substrate having first and second opposing faces and a plurality of substantially parallel linear prisms on the second face that extend in a longitudinal direction of the substrate. The light distribution device is configured to connect to a light assembly including a linear light source with the first face of the substrate facing the light source, with the linear prisms substantially parallel to a light source longitudinal axis and with and the substrate having a non-planar cross-sectional shape such that at least a major portion of the substrate is concave relative to the light source. When connected, the light distribution device is configured to receive light from the light source and distribute the light emerging from the second face of the substrate in a batwing distribution pattern in a plane perpendicular to the light source longitudinal axis. | 01-29-2015 |
Stephen W. Purchase, Southhampton GB
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20080250198 | Storage Consolidation Platform - One embodiment of the invention provides a disk-to-tape storage system including a front-end portion and a hack-end portion. The front-end portion ha, a first interface for receiving storage commands and data over a network from an application performing a backup or archive operation. The received storage commands conform to a standardised command format. The back-end portion has a second interface for transmitting storage commands and the received data for storage in a tape library. The disk-to-tape storage system is operable to transform the received storage commands from the standardised command format into an appropriate format for the transmitted storage commands so as to maintain direct accessibility by the application of the received data as stored in the tape library. | 10-09-2008 |
20100274711 | Computer-based payment transaction system and repository - One embodiment of the invention relates, to a method of operating a payment transaction system maintained by a first party who receives an instruction for a first transaction. The instructed first transaction is directed from a second party to a third party, and includes a transaction date on which the payment transaction system is to give effect to the first transaction. The first party stores the transaction instruction into a database, and permits the third party to access those transaction instructions stored in the database that are directed to the third party. The first party then receives a request from the third party to bring forward at least in part the instructed first transaction. In response to the request, the first party re-directs the first transaction at least in part from the third party to the first party. In addition, the first party creates a new instruction for a second transaction in the system. The second transaction is directed from the first party to the third party and has a second transaction date which is prior to the first transaction date. | 10-28-2010 |
Stephen W. Purchase, Warsash GB
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20080249934 | COMPUTER-BASED PAYMENT TRANSACTION SYSTEM AND REPOSITORY - One embodiment of the invention relates to a method of operating a payment transaction system maintained by a first party who receives an instruction for a first transaction. The instructed first transaction is directed from a second party to a third party, and includes a transaction date on which the payment transaction system is to give effect to the first transaction. The first party stores the transaction instruction into a database, and permits the third party to access those transaction instructions stored in the database that are directed to the third party. The first party then receives a request from the third party to bring forward at least in part the instructed first transaction. In response to the request, the first party re-directs the first transaction at least in part from the third party to the first party. In addition, the first party creates a new instruction for a second transaction in the system. The second transaction is directed from the first party to the third party and has a second transaction date which is prior to the first transaction date. | 10-09-2008 |