The invention relates to a method for acquiring high color rendering LED white light by using combination of a white light LED and a red light LED. The method is implemented by the white light LED, the red light LED and a control circuit. The white light LED consists of a blue light ...
The phosphor-conversion white LED as a whole consists of four major components: the LED chip, phosphor, encapsulant, and heat sink (Fig. 1). The following discussion focuses on the dichromatic white with occasional extension into multiphosphor technique, including research efforts and future research...
white light consists of the blue,green,and red upconversion emissions,which correspond to the transitions 1G4 → 3H6 of Tm3+,5F4 →5I8 and 5F5 → 5I8 of Ho3+ ions,respectively.By the spectral positions at 476,542,and 650 nm we have the white-light coordinates x=0.271 7 and y=...
More students in this program study full-time which consists of twenty hours a week. On the first day of the program, you’ll take a test to determine your level. At the end of each seven-week session, your language skills are evaluated. And if you’ve made enough progress, you’re ...
White pulp consists of PALS, each with a splenic lymphoid follicle surrounded by a marginal zone. Normally these foci of white pulp are so small that they may not be visible on gross examination of a cross section of the spleen. However, if nodules are enlarged either by lymphoid hyperplasia...
On the blue light-emitting diode, with the white light-emitting diode which features that it consists of the inorganic compound to which the aforementioned fluorescent substance layer includes the fluorescent substance in the white light-emitting diode which possesses the fluorescent substance layer which...
根据题干定位到SevenDays,consists ofa singlebeautifulblack-and-whitephotograph taken onan epic walk.因此答案是originatesfroma long walk thatthe artisttook. 翻译参考答案: 大多数人将乐观定义为永远保持快乐的状态,他们永远觉得杯子有一半是满的。然而这恰恰是积极心理学家所不建议的虚假的快乐。―健康的乐观意味...
An assembly is described that consists of a gallium arsenide die chip and a fiber optic coupler bonded together about their respective mating surfaces. The chip includes laser light emitters. The fiber optic coupler has fiber optic light... RR Hall,HT Lin - US 被引量: 95发表: 2001年 Self...
The ONSET telescope is installed near the Fuxian lake near Kunming, China, jointly operated by Nanjing University and Yunnan Astronomical Observatory. It consists of four tubes, which allow the quasi-simultaneous observations of the Sun in four wavebands, He I 10830 Å, Hα, and 3600 and ...
The net of lights consists of 400 LEDs, which are very energy efficient and emit a bright light. This beautiful Christmas decoration is waterproof, so it is suitable for indoor and outdoor use. You can easily place this Christmas decoration on the Christmas tree and the fairy lights will ...