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"Everyone acquainted with the subject will recognize it as a conspicuous failure."
Henry Morton, president of the Stevens Institute of Technology ; Said in 1880 about the light bulb
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| Number | Title | Issue Date |
| 7390129 | Light source, method for manufacturing light source, and projector A light source that has a small size can provide uniform light at high efficiency and can have a high degree of freedom in design, a method for manufacturing this light source, and a projector having this light source include a solid-state light-emitting chip that s... | 06/24/2008 |
| 7319248 | High brightness light emitting diode The present invention discloses a high brightness light emitting diode. The light emitting diode primarily includes a permanent substrate, a reflective mirror formed on said permanent substrate, an n-type cladding layer formed on said reflective mirror, and defining... | 01/15/2008 |
| 7268371 | Light extraction from a semiconductor light emitting device via chip shaping A method for designing semiconductor light emitting devices is disclosed wherein the side surfaces (surfaces not parallel to the epitaxial layers) are formed at preferred angles relative to vertical (normal to the plane of the light-emitting active layer) to improve... | 09/11/2007 |
| 7256060 | Liquid crystal display device and method of fabricating the same A poly-silicon liquid crystal display device with an improved aperture ratio and a simplified method of fabricating the same are disclosed. A liquid crystal display device according to the present invention includes first and second substrates; a gate line on the fi... | 08/14/2007 |
| 7244966 | Liquid crystal display device In a liquid crystal display device, a recessed portion is formed in a portion of a periphery of a lower frame, a columnar member is provided to the recessed portion, the columnar member is allowed to pass through a hole formed in a projecting portion which is provid... | 07/17/2007 |
| 6635987 | High power white LED lamp structure using unique phosphor application for LED lighting products Phosphor application for high power LED lamps for use in lighting products includes a lensing structure and a phosphor layer applied to at least one side of the lensing structure. The lensing structure is positioned in the LED lamp so that emitted light f... | 10/21/2003 |
| 6617615 | Semiconductor light-emitting device Attempted is to provide a semiconductor light-emitting device capable of inexpensively coping with an encoder requiring high resolving power. Provided are a semiconductor light-emitting element, a light-transmissive resin mold part encapsulating the semic... | 09/09/2003 |
| 6560038 | Light extraction from LEDs with light pipes A non-imaging optical coupler that is a figure of revolution combining a light-transmitting body defining a recessed input cavity, a transparent droplet-shaped encapsulant of a light-emitting diode, or array of diodes in the cavity, the body having a curv... | 05/06/2003 |
| 5199087 | Optoelectronic integrated circuit for transmitting optical and electrical signals and method of forming same A package receives and encapsulates an optoelectronic integrated circuit chip. A plurality of optically transmissive filaments have first ends coupled with the chip and second ends opposite the first ends positioned outside the package. In a preferred emb... | 03/30/1993 |
| 4714349 | Photoelectric length or angle measuring instrument A photoelectric length or angle measuring system for measuring the relative position of two objects includes a graduation of a scale which is scanned by a scanning plate of a scanning unit. The scanning unit includes an illuminating unit for the illuminat... | 12/22/1987 |
| 4346294 | Low profile optical coupling to planar-mounted optoelectronic device Means and method for achieving a low profile optical coupling to a planar mounted optoelectronic device. Maintaining the optoelectronic device planar to the substrate on which it and associated circuitry are mounted enables the use of standard, well known... | 08/24/1982 |
| 4212021 | Light emitting devices In a prior-art injection type light emitting device which is constructed so that a predetermined range of a p-n junction formed by a semiconductor substrate and an epitaxial layer provided thereon may radiate, a radiation region in the p-n junction become... | 07/08/1980 |
| 4013915 | Light emitting device mounting arrangement A mounting scheme designed to provide enhanced brightness and off-axis viewing of a discrete light emitting device is described. The device is placed within a cavity with reflecting side walls. Situated above the cavity is a contrast filter which has form... | 03/22/1977 |
