摘要:
A silica deposition tube is fused in a deuterium (D2) gas atmosphere and optionally baked in a deuterium (D2) gas atmosphere to substantially reduce the hydrogen content in the tube for decreased fiber attenuation. Alternatively, raw silica material is pre-treated in D2 gas followed by fusing of the raw silica tube in a D2 gas environment.
摘要翻译:将二氧化硅沉积管熔合在氘(D 2 O 2)气体气氛中,并任选地在氘(D 2 O 2)气氛中烘烤,以显着降低管中的氢含量 用于减少光纤衰减。 或者,将原料二氧化硅材料在D 2气体中进行预处理,然后将原料二氧化硅管在D 2气体环境中熔融。
摘要:
A silica deposition tube is fused in a deuterium (D2) gas atmosphere and optionally baked in a deuterium (D2) gas atmosphere to substantially reduce the hydrogen content in the tube for decreased fiber attenuation. Alternatively, raw silica material is pre-treated in D2 gas followed by fusing of the raw silica tube in a D2 gas environment.
摘要:
Apparatus and methods for forming optoelectronic devices such as an array of light emitting diodes or photovoltaic cells in one embodiment a roll-to-roll process in which a uniquely configured roller having a raised spiral coating surface is aligned with a plurality of first electrodes disposed on an angle on a substrate for coating a plurality of spaced-apart angled coated strips of optoelectronic materials along the cross-web direction of the substrate.
摘要:
An illumination source including a first OLED layer capable of emitting light of a first color, a second OLED layer capable of emitting light of a second color and disposed on the first OLED layer, each of said first, second OLED layers including alternating active light-emitting areas and inactive non-light emitting areas; said first OLED layer comprising a first substrate, a first transparent electrode layer disposed on the substrate, a first electroluminescent layer capable of emitting light of the first color disposed on the first transparent electrode layer, and a first patterned metallized electrode layer forming the alternating active light-emitting areas and inactive non-light emitting areas; and said second OLED layer comprising a second substrate, a second transparent electrode layer disposed on the substrate, a second electroluminescent layer capable of emitting light of the second color disposed on the second transparent electrode layer, and a second patterned metallized electrode layer forming the alternating active light-emitting areas and inactive non-light emitting areas; wherein light emitted by the active light-emitting areas of the first OLED layer is transmitted through the inactive non-light emitting areas of the second OLED layer. A method for tuning color and/or intensity of the light output of an illumination source is also disclosed.
摘要:
A light emitting device comprises a plurality of organic light emitting diode (OLED) modules. The OLED modules are arranged into a series group where the individual OLED modules are electrically connected in series. The device is configured to be coupled to a power supply. A display is also provided. The display includes a plurality of OLED modules arranged to depict a shape selected from the group consisting of at least one letter, at least one number, at least one image, and a combination thereof.
摘要:
A light source comprises an organic light-emitting device, which emits radiation having a first spectrum, and a phosphor layer, which absorbs a portion of the light emitted by the organic light-emitting layer and which emits light having a second spectrum. The organic light-emitting device comprises an organic light-emitting layer disposed between a pair of electrodes, and at least a charge-blocking layer disposed between the organic light-emitting layer and one of the electrodes. The phosphor layer typically absorbs less than all of the light emitted by the organic light-emitting layer and typically covers the entire organic light-emitting device. The light emitted by the organic light-emitting layer is mixed with the light emitted by the phosphor layer to produce light having a third spectrum.
摘要:
A light source comprises an organic light emitting device which emits radiation having a first spectrum and a phosphor layer which absorbs a portion of the light emitted by the organic light emitting layer and which emits light having a second spectrum. The phosphor layer typically absorbs less than all of the light emitted by the organic light emitting layer and typically covers the entire organic light emitting device. The light emitted by the organic light emitting layer is mixed with the light emitted by the phosphor layer to produce light having a third spectrum. Exemplary embodiments of the invention provide advantages over known devices. For example, because a phosphor layer is provided, the light emitted from the organic light emitting device is scattered, which provides improved uniformity in light output over the area of the light source. Also, because most phosphors are relatively stable over time, the light source has good color stability over time.
摘要:
The invention relates to a luminescent display comprising a first electrode, a second electrode, an organic light emitting layer disposed between the first and second electrodes, and a luminescent material which receives light from the organic light emitting layer and converts the light to a different wavelength, wherein the first and second electrodes together define an overlap region in which the organic light emitting layer is activated to emit light, and the luminescent material is disposed in a portion of the overlap region. The invention also relates to a method comprising the steps of creating an image and printing the image on a light emitting device comprising an organic light emitting layer after the light emitting device has been formed. The image may be created, for example on a personal computer, and printed with an inkjet printer. The image may be printed in phosphors which emit light of one wavelength upon absorbing light of a different wavelength from the organic light emitting layer. Various embodiments of the invention allow customized luminescent displays to be easily fabricated by end users by applying a phosphor pattern to a preformed, encapsulated light emitting device.
摘要:
A flexible organic light emitting diode (OLED) fiber light source is provided. The OLED contains a fiber core, a cathode, at least one organic radiation emitting layer and a transparent anode. The fiber light source may be used as a flexible novelty lighting article or coiled inside a large area lighting source.
摘要:
A device structure and method for outdoor signs utilizing organic light emitting device (OLED) technology. Exemplary embodiments of the device include an OLED that is patterned into a sign combined with an exterior layer consisting of a highly scattering, non-absorbing coating over the OLED emitting regions and a highly absorbing coating over the non-emitting regions. The result is a sign that can be viewed using organic electroluminescent (EL) light under low ambient light level conditions, and due to the exterior coating, can also be viewed under high ambient light conditions.