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One aspect is the coating method of phosphor, which influences the LED's color temperature and range of available color properties, so,phosphor coating in manufacturing process must be uniform in thickness.

荧光粉的涂抹方式对白光LED的发光分布与色的均匀度影响很大,荧光粉厚度较厚的位置黄光产生较多,色会较低,因此在芯片上形成的涂抹层必须是均匀。

The second experiment is to fabricate white light LED from red and green phosphors pumped by blue light LED. The blue light LED we used in our experiment has the wavelength range between 450 and 452.5 nm, and the chip size is 17 mil *14 mil. There are two kinds white light LED we fabricated in the experiment. There are three blue light LED chips bonded in single package of both kinds package. The different of the both packages is mixed phosphor of encapsulation. One of the experimental devices was encapsulated YAG phosphor mixed silicone to fabricate white light. The other is red and green phosphor mixed encapsulation. The compared and focused parameter was luminous efficiency. YAG phosphor pumped white light has the luminous efficiency 72 lm/W, CRI 70, CIE(0.32, 0.33), CCT 5622°K at the operating current 60mA. On another hand, red and green phosphor pumped white light LED has the luminous efficiency 55 lm/W, CRI 90, CIE(0.31, 0.32), CCT 6479°K at the operating current 60mA. We fabricated the red and green phosphor pumped white light LED, and proved that it could has much higher CRI under similar compared conditions, CIE xy and CCT.

第二个实验是使用蓝光LED晶粒来制作白光元件,蓝光LED晶粒波段范围在450 ~ 452.5 nm,晶粒大小为17*14 mil,以三颗蓝光LED晶粒搭配YAG萤光粉(黄绿光 540 nm)制成白光元件,再以另外三颗蓝光LED晶粒搭配红色萤光粉(613 nm)混合绿色萤光粉(519 nm)制成的白光元件进行发光效率比较;搭配YAG萤光粉的白光元件在注入60 mA的电流时所量测到最大的发光效率是在72 lm/W,演色性数值大约为70,CIE色度座标为(0.32, 0.33),色是在5622 °K;而搭配红色萤光粉混合绿色萤光粉的白光元件在注入60 mA的电流时,最大的发光效率在55 lm/W,演色性数值大约为90,CIE色度座标为(0.31, 0.32),色在6479 °K;证明了蓝光LED晶粒搭配红色萤光粉混合绿色萤光的白光元件演色性指数可以高达90 以上的结果。

And the characteristics reacting to temperature and photoperiod are the main problem for application in breeding or not.

敏不育系是两系杂交水稻的基础,不育系育性转换的光反应是不育系能否应用的关键。

EAG responses of male under different temperature and photoperiod to female sex glands extraction under different conditions varied significantly.

不同光条件的雄蛾对不同光条件的雌蛾性信息素腺体提取物的EAG反应差异显著。

The results showed that there were very good heat preservation and light-taking performance in the solar greenhouse, but in the cold season, temperature and light conditions in the solar greenhouse could not meet the needs of thermophilic, photophilous fruits, vegetables and crops, etc.

对阿拉尔市普遍用于冬季蔬菜种植的日光室内度和光照测定结果表明:日光室虽有很好的保采光性能,但寒冷季节,日光室内的光条件仍满足不了喜、喜光等果菜类作物正常生长的需要。

The interval sowing experiments showed that 291S was a photo-thermo-sensitive male sterile line, which showed part fertile under short-day and low-temperature conditions when autumn sowing, showed high sterile under long-day and high-temperature conditions when spring sowing. The self-multiplication ability and sterility of 291S can be improved through selection effectively. The pistillody of stamens of 291S could be induced under certain photoperiod and temperature condition.

分期播种试验表明,291S是一种光敏雄性不育系,秋播短日低条件下表现为部分可育,春播长日高条件下表现为高度不育,其可繁性和不育性经选择可以得到有效改良。291S在一定的光条件诱导下会出现雄蕊心皮化现象。

Dry lotus battery plus liquid behind Wen's raise, battery heating-up not very obviously, this is because dry lotus electricity's polar plate's course resist oxidation treatment, leave the factory de battery as is be in adequate electricity condition, plus liquid behind and then be OK load usage; common pole board battery, not resist oxidation treatment, negative plate be in half adequate electricity's conditions, equivalent to a part materials be in for plumbic oxide and rare sulphuric acid react bring forth plenty of quantity of heat, therefore warm long very high.

干荷电池加液后升高,电池升不十分明显,这是因为干荷电极板经过抗氧化处理,出厂的电池以是处于充足电状态,加液后即可负荷使用;普通极板的电池,未经抗氧化处理,负极板处于半充足电状态,相当一部分物质处于为氧化铅和稀硫酸反应产生大量的热量,因而长很高。

Ectotherms are organisms such as plants, reptiles and protista which are largely reliant on external sources of heat to raise their body temperature.endotherms are organisms capable of generating heat internally in order to raise their body temperature.

像爬行动物等有机体属外动物,它们很大程度地依赖于外来的热来提高自己的体。内动物是能够在体内产热以升高体的有机体。

Objective: To explore the different mechanisms of action of warm and purgation method and warm and unsmooth method in promoting the repair of immunological injury of ulcerative colitis.

目的:探讨下法与涩法在溃疡性结肠炎损伤修复方面的不同作用机制。

The principles of contactless infrared measuring temperature with pyroelectricity infrared sensors, the system structure of infrared measurement temperature and its component of signal processing circuits are introduced, its aim is to carry out contactless temperature measurement for a moving body.

摘要介绍了利用热释电红外传感器进行非接触式红外测的原理、红外测系统结构和信号处理电路的组成,目的是实现对移动物体的非接触式度测量。

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推荐网络例句

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应,而且减少跟风的可能性。

The new PS20 solar power tower collected sunlight through mirrors known as "heliostats" to produce steam that is converted into electricity by a turbine in Sanlucar la Mayor, Spain, Wednesday.

聚光:照片上是建在西班牙桑路卡拉马尤城的一座新型PS20塔式太阳能电站。被称为&日光反射装置&的镜子将太阳光反射到主塔,然后用聚集的热量产生蒸汽进而通过涡轮机转化为电力