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2445 results about "Heat sensitive" patented technology

Optical element to reshape light with color and brightness uniformity

A light valve such as an active matrix LCD between crossed polarizers, utilizing, for instance, individual transistors to control each "pixel area" of the LCD and storage elements to store video signal data for each pixel, with optically shielded "dead spaces" between pixels to eliminate electric field cross-talk and non-information-bearing light bleed-through, is illuminated with a bright independent light source which creates a video image projected via specialized projection optics onto an internal or external screen without distortions, regardless of the angle of projection onto the screen. Use of heat sinks, IR reflective coatings, heat absorbing optics, optional fluid and a thermistor controlled pixel transistor bias voltage injection servo circuit stabilizes image performance, maintaining accurate color and contrast levels as the LCD changes temperature. In one embodiment of the invention, use of a multi-color LCD with a stepped cavity, producing different thicknesses of LCD for the different wavelengths that pass through it, allows a linear correspondence between the wavelengths passing through the LCD to produce true black, high contrast and CRT-like color rendition. A dichroic mirror arrangement is used to overlap differently colored pixels in the projected image. Use of striped mirrors duplicate pixels, where necessary, eliminating spaces between pixels, creating a continuous image with no apparent stripes or dots. A special venetian-blind type of screen is also disclosed and methods for using the system to view three-dimensional video are also explained.

Thermal wristband/cinch with inboard label assembly business form and method

A business form particularly adapted for generalized use, although it may be used in a medical or hospital environment includes in a first embodiment a wristband that is provided with a face stock imaging area and an overlying laminate portion with each having one or more cinch slots through which the free end is inserted for securing the wristband about a person's appendage. The labels and the wristband may each be imprinted with identifying indicia such as bar coding and the form is laid out to be arranged in a continuous, relatively narrow, web for convenient processing through a thermal printer. A second embodiment of the invention includes a self laminating wristband similar in construction to other embodiments and comprised of a layer of face stock and a laminate, with the laminating portion having its overlapping half adjoined at the end of the first lamination portion instead of at its side. In other words, the laminating portion includes two halves which fold together about a fold line to enclose the face stock as before, except that the halves fold over end-to-end. The cinch comprises two slots which may both be located outboard of the face stock, and in the laminate portion alone or in both the face stock and laminate portion. Any of the wristband constructions may be provided in any combination, with or without labels, on a sheetlet or a page sized sheet, in any of a number of configurations, to suit any particular application, as desired by a user.

Heated cycle grip

An electrically powered resistance heating handgrip is provided for a vehicle that employs an electrical storage battery. A control circuit to regulate the amount of power provided to the resistance elements in the grip is provided and preferably located within a hollow core that fits coaxially within the open end of a handlebar of a motorcycle or snowmobile, for example. The control circuit is mounted on a thin, narrow, elongated printed circuit board and includes a microprocessor that is programmed to contain a lookup table of temperatures. A thermistor is embedded in the casing of the handgrip proximate the heating element thereof. The thermistor provides feedback signals to the microprocessor which compares the temperature sensor feedback signals to a target temperature and provides or interrupts electrical power to the electrical heating element depending upon whether the temperature indicated by the thermistor is lower than the target temperature. The target temperature is established by a dial mounted in the butt end of the handgrip. The dial operates the wiper of a variable potentiometer to establish the target temperature. Heat is uniformly distributed throughout each handgrip by wrapping the heating element wire thereof about a thermally conductive sheet of aluminum, and encasing the wire within a temperature resistant dielectric sheathing, such as Teflon(R).
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