Abstract:
A Light Emitting Diode (LED) component includes a lead frame and an LED that is electrically connected to the lead frame without wire bonds, using a solder layer. The lead frame includes a metal anode pad, a metal cathode pad and a plastic cup. The LED die includes LED die anode and cathode contacts with a solder layer on them. The metal anode pad, metal cathode pad, plastic cup and/or the solder layer are configured to facilitate the direct die attach of the LED die to the lead frame without wire bonds. Related fabrication methods are also described.
Abstract:
Light emitting diode (LED) devices and methods. An example apparatus can include a substrate, one or more LEDs, light-transmissive encapsulation material, and a reflective material covering a portion of the encapsulation material to form a defined opening. The opening allows light emitted from an LED to pass through in a prescribed manner. In some embodiments, the apparatus can be subsequently treated to modify the surface having the opening. In other embodiments, the reflective material can be disposed on a lateral surface of the encapsulation material to reflect light in a desired direction.
Abstract:
Submount based light emitter components and related methods are disclosed. In some aspects, light emitter components include a reflective ceramic submount, at least one light emitter chip disposed over a first surface of the submount, a layer of optical conversion material disposed over portions of each of the at least one light emitter chip and the first surface of the submount, and a lens disposed over the layer of optical conversion material. The layer of optical conversion material and the lens define separate and discrete layers over the at least one light emitter chip and submount.
Abstract:
Light emitting diode (LED) devices, components and systems are provided. LED devices include a submount with a plurality of LEDs disposed thereon. The LEDs mounted on a submount can be spaced apart at predetermined dimensions to control the gaps between each of the plurality of LEDs. By controlling the gaps between LEDs the optical output from the LED device can be optimized, including improving emission and/or color uniformity, minimizing or eliminating deadspots in the light emission, and/or minimizing or eliminating an optical cross. A phosphor layer can be disposed on the plurality of LEDs and between the LEDs in the gaps therebetween.
Abstract:
Solid state light emitter devices and methods are provided. A solid state light emitter device can include a submount having an upper surface and a bottom surface. At least first pair and a second pair of electrically conductive contacts can be disposed on the bottom surface of the submount. The first pair of contacts can be electrically independent from the second pair of contacts. The device can further include multiple light emitters provided on the upper surface of the submount. The multiple light emitters can be configured into at least a first light emitter zone that is electrically independent from a second light emitter zone upon electrical communication to a respective pair of contacts.
Abstract:
Submount based light emitter components and related methods are disclosed. In some aspects, light emitter components include a reflective ceramic submount, at least one light emitter chip disposed over a first surface of the submount, a layer of optical conversion material disposed over portions of each of the at least one light emitter chip and the first surface of the submount, and a lens disposed over the layer of optical conversion material. The layer of optical conversion material and the lens define separate and discrete layers over the at least one light emitter chip and submount.
Abstract:
High voltage array light emitting devices and fixtures are disclosed. In one embodiment a light emitting device can include a submount, a light emission area disposed over the submount and a retention material adapted to be dispensed about the light emission area. The light emitting device can be operable at high voltages which are greater than approximately 40 volts (V). In one aspect, the retention material can be least partially disposed within the light emission area such that the retention material physically separates a first section of the light emission area from a second section of the light emission area.
Abstract:
Submount based light emitter components and methods are provided herein. In one aspect, a submount based light emitter component can include a primary submount, a secondary submount, and at least one light emitter chip. The at least one light emitter chip can be disposed over the primary submount and electrically connected to the secondary submount.
Abstract:
High voltage array light emitting devices and fixtures are disclosed. In one embodiment a light emitting device can include a submount, a light emission area disposed over the submount and a retention material adapted to be dispensed about the light emission area. The light emitting device can be operable at high voltages which are greater than approximately 40 volts (V). In one aspect, the retention material can be least partially disposed within the light emission area such that the retention material physically separates a first section of the light emission area from a second section of the light emission area.
Abstract:
Light emitting devices and substrates are provided with improved plating. In one embodiment, a light emitting device can include a submount and one or more light emitting diodes (LED) chips disposed over the submount. In one embodiment, the submount can include a copper (Cu) substrate, a first metallic layer of material that is highly reflective disposed over the Cu substrate for increased brightness of the device, and a second metallic layer disposed between the Cu substrate and the first metallic layer for forming a barrier therebetween.