摘要:
An electro-active phoropter and a method of using the electro-active phoropter to measure a patient's vision prescription is disclosed. The electro-active phoropter includes a series of individually addressable electro-active lenses. The lenses have either a positive or negative optical power when an electrical potential is applied across the lens and a neutral optical power when no electrical potential is applied across the lens. Each lens provides an optical power that is part of a net optical power of the series of lenses when a patient views through the phoropter. The optical power of the phoropter can be incrementally adjusted by changing the distribution of the electrical potential across the different lenses of the series to provide increasing or decreasing optical power until a patient achieves a desired level of clarity and a vision prescription has been determined.
摘要:
Embodiments of the present invention relate to a floor display system comprising a floor covering and an electronic display device associated with the floor covering. The electronic display device is able to display electronically modifiable arbitrary content. The floor display system further comprises a controller and a sensing device coupled to the controller. The sensing device is associated with a specific location on the display device and generates a signal to the controller to cause a content of a display of the display device to be modified or newly generated at the specific location.
摘要:
A range finder device for use with a controller in an optical system is disclosed in accordance with one embodiment of the invention. The range finder device comprises a transmitter to produce a first beam of non-visible radiation for intersecting a perceived object, and a receiver to detect non-visible radiation reflected from that object. The controller determines a viewing distance of the perceived object based on signals received from the transmitter and receiver. A method of controlling an optical lens system comprises utilizing a range finder device to determine a viewing distance of an object perceived through an electro-active lens and adjusting a focal length of a portion of the lens based on the viewing distance. An optical lens system comprises an electro-active lens and a controller to adjust a focal length of at least a portion of the electro-active lens based on a signal from a range finder device.
摘要:
Embodiments of the present invention relate to a floor display system with interactive features. The floor display system may be arranged in a public place, and be configured to display electronically modifiable arbitrary content, such as advertising or other informational content. The floor display system may be configured to detect an indication of the presence or activity of a person in the vicinity, and upon detecting the indication, perform a corresponding action in response, such as generating a predetermined display or audio output.
摘要:
An advanced floor mat is disclosed. In an embodiment of the present invention, the floor mat includes a cleanable portion. The floor mat may also include a water dissipation component, a water absorbing component, a cushioning component, customized graphics, a transparent cleanable portion, a tacky surface on the cleanable portion, an antibacterial composition, an antifungal composition, and a fragrance. The cleanable portion may be erodible and may include a plurality of cleanable reusable layers. If a tacky surface is included in the floor mat, an anti-slip feature may be associated with the tacky surface to help prevent slipping on a possibly wet tacky surface. Additionally, a sensor system may be included in the floor mat to assist a user in identifying when the floor mat may require cleaning.
摘要:
A device is disclosed for cleaning a surface. In one embodiment, the device includes a sheet having at least one tacky surface and a plurality of rollers in contact with said sheet, said plurality of rollers, in an operative embodiment, maintaining contact between said tacky surface and the surface to be cleaned.
摘要:
A capillary discharge plasma display panel with an optimized capillary aspect ratio is disclosed in the present invention. More particularly, a capillary discharge plasma display panel includes first and second substrates, at least one first electrode on the first substrate, a first dielectric layer on the first electrode including the first substrate, at least one second electrode on the second substrate, a second dielectric layer on the second electrode including the second substrate, wherein the second dielectric layer has at least one capillary discharge site corresponding to each second electrode and the capillary discharge site has a diameter approximately twice as great as a depth, thereby generating a continuous plasma discharge from the capillary discharge site, and at least one discharge space between the first and second dielectric layers.
摘要:
The present provides progressive addition lens designs and lenses in which unwanted lens astigmatism is reduced as compared to conventional progressive addition lenses.
摘要:
This application outlines several applications of a piezoelectric materials invention to produce quality loudspeakers in applications where coil driven dynamic speakers are difficult or impossible to implement with an appreciable degree of sound quality. This invention includes a series of modifications to a laptop computer such as the IBM 750c. The modifications to the computer consist of placing piezoelectric patches behind the LCD and directly to the back wall of the laptop lid. Damping materials and stiffeners are also added to the back wall to reduce structural resonance. A system consisting of an audio amplifier and transformer is used to drive the piezo speaker.
摘要:
A lens including a flexible refractive optic having a fixed refractive index, an electro-active element embedded within the flexible refractive optic, wherein the electro-active element has an alterable refractive index, and a controller electrically connected to the electro-active element wherein when power is applied thereto the refractive index of the electro-active element is altered.