摘要:
A micro-lens array with a precisely aligned aperture mask, and a method of forming the same, is provided. The aperture mask is formed by projecting light onto a mask layer using each lenslet in the micro-lens array. The intensity of the light and the mask layer material are chosen so that the light forms apertures in the mask layer via a non-ablative process. The resulting apertures are automatically aligned with their respective lenslets.
摘要:
A light-transmission screen includes a diffusing element formed from a micro-lens array for projecting images in a viewing space. The screen generates images of improved quality by varying structural features of one or more lenses in the array so that light is directed in different directions and/or with different optical properties compared with other lenses in the array. The structural features which are varied include any one or more of size, shape, curvature, or spacing of the lenses in the array. As a result of these variations, the screen achieves wider viewing angles, improved screen resolution and gain, and a greater ability to reduce or eliminate aliasing or other artifacts in the generated images compared with conventional screens. A method for making a light-transmission screen of this type preferably forms the micro-lens array using a stamping operation based on a master. By taking this approach, the screen is manufactured with fewer process steps and at less cost compared with conventional methods.
摘要:
A light-transmission screen includes a diffusing element formed from a micro-lens array for projecting images in a viewing space. The screen generates images of improved quality by varying structural features of one or more lenses in the array so that light is directed in different directions and/or with different optical properties compared with other lenses in the array. The structural features which are varied include any one or more of size, shape, curvature, or spacing of the lenses in the array. As a result of these variations, the screen achieves wider viewing angles, improved screen resolution and gain, and a greater ability to reduce or eliminate aliasing or other artifacts in the generated images compared with conventional screens. A method for making a light-transmission screen of this type preferably forms the micro-lens array using a stamping operation based on a master. By taking this approach, the screen is manufactured with fewer process steps and at less cost compared with conventional methods.
摘要:
A method to determine a distribution profile of an element in a film. The method comprises exciting an electron energy of an element deposited in a first film, obtaining a first spectrum associating with the electron energy, and removing a background spectrum from the first spectrum. Removing the background value generates a processed spectrum. The method further includes matching the processed spectrum to a simulated spectrum with a known simulated distribution profile for the element in a film comparable to the first film. A distribution profile is obtained for the element in the first film based on the matching of the processed spectrum to a simulated spectrum selected from the set of simulated spectra.
摘要:
A leveling system for a structure to be leveled is provided. At least one linear accelerometer is mounted to measure acceleration in a principal plane of motion of a lift structure. An angular rate sensor is mounted to measure angular velocity about an axis perpendicular to the principal plane of motion of the lift structure. An electronic control module is configured to use measurements from angular rate and accelerometer sensors to produce a level angle output. The level angle output is used to adjust and control a level angle of the structure to be leveled.
摘要:
A method to determine a distribution profile of an element in a film. The method comprises exciting an electron energy of an element deposited in a first film, obtaining a first spectrum associating with the electron energy, and removing a background spectrum from the first spectrum. Removing the background value generates a processed spectrum. The method further includes matching the processed spectrum to a simulated spectrum with a known simulated distribution profile for the element in a film comparable to the first film. A distribution profile is obtained for the element in the first film based on the matching of the processed spectrum to a simulated spectrum selected from the set of simulated spectra.
摘要:
A filter apparatus for filtering material solids from a liquid having a filter belt driven by a pair of belt transport chains and including a purged seal member to limit bypass of unfiltered fluid around the filter belt. The filter apparatus includes a plurality of flight bars configured to float above the filter belt thereby reducing wear. Also included is a webbing layer provided on filter belt outboard portions including holes with grommets configured to engage with the belt transport chains.
摘要:
An embodiment of a method of shifting a valve between a plurality of flow condition positions, includes the steps of providing a mechanical indexer device in operational connection with a valve, the indexer device including a primary path defining a sequence through a plurality of valve positions at and between open and closed and a detent moveable along the primary path; providing at least one alternate path from a point along the primary path to a preceding position on the primary path along the sequence; shifting the valve to a subsequent position in the sequence; and shifting the valve to the preceding position in the sequence.
摘要:
The invention is a digital radiation detector utilizing the stable timing functions of a microcontroller or plurality of microcontrolling devices to perform three independent functions. A first timer generates a continuous square wave output that is fed through a class B amplifier to yield a stable, drift-free power supply for a connected radiation sensor. A second timer is used as an event counter for counting the processed pulses coming from the radiation sensor. A third timer acts as a real time clock generating a one-second interrupt for quantifying the number of counts per second. The number of counts per second can be communicated as raw data through a communication interface or presented as a number of audible or visual displays.
摘要:
A packaging laminate comprising a paperboard substrate for providing a base layer, a tear-resistant polymer layer applied to said substrate, and a heat seal polymer layer applied to said tear-resistant polymer. This laminate structure is particularity useful for blister pack packaging.