摘要:
A compact flash lamp array includes a housing defining a plurality of cavities, with each cavity having a light emitting opening and a combustible mass deposited in each cavity. A firing means such as an electrically heated filament or percussive primer is provided for individually firing the combustible mass in each cavity. Each cavity in the housing is provided with a porous portion communicating to the outside of the cavity having sufficient porosity to maintain cavity integrity during combustion of the combustible mass contained in a cavity while retaining combustion by-products.
摘要:
The instant invention teaches a monostable shutter with magnetic blade return using a bistable actuator with blade motion constrained to provide drive force in a single direction and permits the use of compact bistable coil for continuous use by a circuit that applies a high voltage at the beginning of drive that decays to a lower voltage to prevent coil burn out.
摘要:
A transaction card system includes a transaction cared with a display tag for displaying short term information, the character display having optical states that are stable without power and viewable from one side of the display tag and an array of electrical contacts for electrically addressing the character display from the other side of the tag, a contact window through which the contacts are accessible, machine readable data on the card, and long term information printed on the transaction card; a transaction card writer having a reader for reading the machine readable data and having means for updating the short term information displayed on the transaction card; and a central computer connected to the transaction card writer having a data base and a central processor for receiving the information read by the magnetic card reader and generating display commands for the transaction card writer.
摘要:
The invention relates to a patternable coatable electrically conductive layer comprising a fluid-coated electrically conductive material, wherein the fluid-coated electrically conductive material has sufficient conductivity to induce an electric field strong enough to change the optical state of a light modulating material and a display comprising a substrate, at least one patternable coatable electrically conductive layer comprising a fluid-coated electrically conductive material, wherein said fluid coated electrically conductive material has sufficient conductivity to induce an electric field strong enough to change the optical state of a light modulating material which has a first and a second field-switched stable optical state, and an imaging layer comprising said light modulating material disposed over said at least one patternable fluid-coated electrically conductive layer. The invention also relates to a method for making a coatable electrically conductive layer and a method for making a display with a coatable electrically conductive layer.
摘要:
A method of writing an electrically writable tag using a hand-held writing device includes the steps of providing an electrically writable tag having a plurality of electrical conductors located on a display surface of the tag, and a mechanical alignment feature including a detent for locating the tag with respect to a hand-held writing device; providing a hand-held writing device having a corresponding plurality of electrical contacts for simultaneously making contact with the electrical conductors of the tag, and a complementary alignment feature with a detent for locating the hand-held writing device with respect to the tag; and locating the hand-held writing device with respect to the tag, using the alignment features, and activating the hand-held writing device to write information on the tag.
摘要:
A display having polymer dispersed liquid crystals, which display comprises a transparent substrate; a layer comprising polymer-dispersed cholesteric liquid crystal disposed over the substrate, which layer has more than one stable optical state in the absence of an electrical field. The display further comprises a first transparent conductor disposed between the state changing layer and the transparent support, a second conductor on the other side of the state changing layer so that when a field is applied between the first and second conductors, the liquid crystals change state. It has been found advantageous to have a non-conductive, non-field spreading dark layer of sub-micron pigments in a binder for providing an improved light absorbing function, which dark layer is disposed between the layer of polymer-dispersed cholesteric liquid crystal and the second conductor.
摘要:
A digital still camera for receiving a optical tape cassette having optical tape including an image sensor for capturing an image; focusing an image of a subject onto the image sensor which in response thereto captures such image; a structure for receiving the optical tape cassette; an optical writer for effecting a change in the optical properties of the optical tape. The optical tape is movable into operative relationship with the optical head; the image sensor and the optical writer causes the optical head write to effect changes in the optical properties of the optical tape in accordance with the image captured by the image sensor.
摘要:
A light modulating, electrically responsive sheet including a transparent substrate, and a transparent, electrically conductive layer formed over the transparent substrate. The sheet further includes a light modulating layer including a plurality of electrically responsive light modulating materials dispersed in the light modulating layer and having a plurality of optical states.
摘要:
A display for presenting selected images to a viewer is disclosed, including a transparent substrate, a transparent, electrically conductive coating formed over the transparent substrate, a light modulating layer formed over the transparent, electrically conductive layer and a photosensitive layer formed over the light modulating layer which is adapted to be exposed and developed to provide viewable and conductive images. The display further includes the light modulated layer being effective in two conditions, in a first condition to prevent the viewing of the viewable and conductive images and in a second condition to permit the viewing of the viewable and conductive images, and an electrical conduction structure connected to the viewable and conductive images and the transparent, electrically conductive coating for applying a field to the selected ones of such viewable and conductive images to cause the light modulating layer to change from the first condition to the second condition so as to present such viewable and conductive images to the viewer.