摘要:
Electroactive polymer transducers are disclosed. They are biased in a manner that provides for increased force and/or stroke output, thereby offering improved work potential and power output capacity. The biasing may offer additional or alternate functional advantage in terms of matching transducer performance with a given application such as a normally-closed valve. The improved biasing (including increased output biasing) may utilize negative spring rate biasing and/or a combination of negative or zero-rate biasing with positive rate biasing to achieve the desired ends.
摘要:
Aspects of the invention can provide an imaging device that can include a first optical element having a first focal length, and a second optical element having a variable second focal length. The second optical element can be located at a fixed first distance of approximately the first focal length away from the first optical element. Thus, such an imaging device can permit an optical system to focus on an object at various distances and at a constant magnification with no moving parts.
摘要:
A multimode electronic measuring instrument is provided that includes a ratiometric mode of operation. During the ratiometric mode, a desired dimension is established as a stored reference dimension “Xref”. After the reference dimension is stored in memory, subsequent ratiometric measurement readouts will equal a current measurement distance “Xcurr” divided by the reference dimension Xref. A ratiometric measurement according to this invention indicates the relationship of a current dimension to another readily changed (reference) dimension. The ratiometric mode of operation can be implemented in combination with conventional function caliper functions to provide a multimode caliper having a simple and intuitive user interface. Setting the reference dimension and interpreting the ratiometric measurement display are particularly easy, to facilitate intuitive understanding and operation.
摘要:
A method for creating a reduced sized view-map of an autostereoscopic source image is disclosed. The method comprises creating a mathematical model for mapping the autostereoscopic source image into a first view-map, mapping the autostereoscopic source image into the first view-map, wherein the first view-map comprises a source-view image value and a plurality of pixel locations comprising an origin pixel, scanning the first view-map for at least one pixel location whose source-view image value closely matches that of the origin pixel, and generating the reduced sized view-map by replicating matched pixel locations within the first view-map.
摘要:
A multimode electronic measuring instrument is provided that includes a ratiometric mode of operation. During the ratiometric mode, a desired dimension is established as a stored reference dimension “Xref”. After the reference dimension is stored in memory, subsequent ratiometric measurement readouts will equal a current measurement distance “Xcurr” divided by the reference dimension Xref. A ratiometric measurement according to this invention indicates the relationship of a current dimension to another readily changed (reference) dimension. The ratiometric mode of operation can be implemented in combination with conventional function caliper functions to provide a multimode caliper having a simple and intuitive user interface. Setting the reference dimension and interpreting the ratiometric measurement display are particularly easy, to facilitate intuitive understanding and operation.
摘要:
A compact monolithic quadrature detector generates four signals from an input beam including orthogonally polarized object and reference beam components provided by an interferometer. The single input beam may be split into four output beams using a first beam splitting interface between two prisms, reflections at two air interface surfaces of the prisms, and a second beam splitting element. Different respective predetermined phase shifts may be imposed on the respective output beams by coatings on the beam splitting surfaces, which impart a different phase shift to the components of a transmitted beam as compared to a reflected beam. The four relatively phase shifted output beams may be directed through polarizers onto respective detectors to provide four signals usable to eliminate many common mode errors and determine the phase difference between the components of the original input beam with high accuracy.
摘要:
A vehicle control switch assembly for use with a printed circuit board is disclosed. The switch assembly includes an elastomeric pad and a support member. The elastomeric pad has a contact pad for selective engagement with an electrical contact of the printed circuit board. The support member is molded together with the elastomeric pad. A vehicle control switch assembly including a printed circuit board having an electrical contact, an elastomeric pad having a contact pad for selective engagement with the electrical contact of the printed circuit board, and a support member is also disclosed. The support member is positioned between the elastomeric pad and the printed circuit board to provide support for the elastomeric pad.
摘要:
A method and apparatus for optimizing viewing distance for a stereogram system. In a stereogram, an image is held in close juxtaposition with a lenticular screen. In the invention, a data store is used to store optimum pitch values for specified viewing distances. An interdigitation program then acts on the table values and creates a mapping of interdigitated views for each viewing distance. The user can then select or specify a desired viewing distance, and the optimum mapping of views is automatically chosen for display.
摘要:
A system and method for interdigitating multiple perspective views in a stereoscopic image viewing system. A lenticular sheet is affixed in intimate juxtaposition with a display area having a defined aspect ratio. The display area includes a plurality of scan lines each having a plurality of pixels, each pixel including subpixels. A map having the same resolution as the display is created to store values corresponding to each subpixel in the display area. Preferably, the map is generated beforehand and stored for later use through a lookup operation. A buffer stores a frame having n views, wherein each of the n views has the same aspect ratio as the display area. A plurality of masks is also created and stored. Each mask corresponds to a unique one of the n views and includes opaque areas and a plurality of transparent windows, each of which corresponds to a selected subpixel location. The n views are then interdigitated while applying the corresponding masks, and a value is assigned to each subpixel using the map.
摘要:
Aspects of the invention can provide an imaging device that can include a first optical element having a first focal length, and a second optical element having a variable second focal length. The second optical element can be located at a fixed first distance of approximately the first focal length away from the first optical element. Thus, such an imaging device can permit an optical system to focus on an object at various distances and at a constant magnification with no moving parts.