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LED Patents    

Light emitting Diode - Chip technology

Overview

LED technology covers

- an improved lamp fixture with anti-glare function, with direction control for improved uniformity of the lamp.
- a converging element for an LED chip and a multi-chip LED to improve efficiency.

Patent Summary

U.S. Patent Classes & Classifications Covered in this listing:

Class 362: Illumination

Means and processes for casting visible radiant energy in at least one direction to render objects in that direction visible.

Subclass 336: Including diverse refracting elements on one surface
Subclass 337: Prismatic type
Subclass 338: Plural elements on a curved surface
Subclass 339: Prismatic type
Subclass 361: Curved surface

Class 359: Optical: Systems And Elements

Optical elements included in this class are: Lenses; Polarizers; Diffraction gratings; Prisms; Reflectors; Filters; Projection screens; Optical Modulators; Optical Demodulators. Among the optical systems included in this class are: Compound lens systems; Light reflecting signalling systems (e.g., retroreflectors); stereoscopic systems; Binocular devices; Systems of lenticular elements; Systems involving light interference; Glare reducing systems; Light dividing and combining systems; Light control systems (e.g., light valves); building illumination with natural light; Systems for protecting or shielding elements; Optical systems whose operation depends upon polarizing, diffracting, dispersing, reflecting, or refracting light; kaleidoscopes. Further included are certain apertures, closures, and viewing devices of a specialized nature which involve no intentional reflection, refraction, or filtering of light rays. This class also includes optical elements combined with another type of structure(s) to constitute an optical element combined with a nonoptical structure or a perfection or improvement in the optical element.

Subclass 641: COLLIMATING OF LIGHT BEAM

Class 257: Active Solid-State Devices (E.G., Transistors, Solid-State Diodes)

This class provides for active solid-state electronic devices, that is, electronic devices or components that are made up primarily of solid materials, usually semiconductors, which operate by the movement of charge carriers - electrons or holes - which undergo energy level changes within the material and can modify an input voltage to achieve rectification, amplification, or switching action, and are not classified elsewhere.

Subclass 88: Plural light emitting devices (e.g., matrix, 7-segment array)
Subclass 98: With reflector, opaque mask, or optical element (e.g., lens, optical fiber, index of refraction matching layer, luminescent material layer, filter) integral with device or device enclosure or package
Subclass E33.005: Shape or structure (e.g., shape of epitaxial layer) (EPO)
Subclass E33.061: Comprising luminescent material (e.g., fluorescent) (EPO)