查询词典 luminous intensity

Another approach in enhancing the light extraction efficiency of AlGaInP LED was accomplished using a surface roughening process. In this process, the Au(170 nm)/AuBe(260 nm)/Au(170 nm) ohmic contact layers were first deposited on the GaP window layer. After the alloy annealing process (480°C for 10 min), the Be atoms will diffuse into the GaP top layer and form non-uniform clusters. The LED samples were then immersed into a mixture 3H3PO4:1H2O2:1H2O solution for 6 min, resulting in a rough GaP surface. The luminous intensity of the AlGaInP LED can increase from 42 to 50 mcd, that is, an 18% enhancement can be achieved via the present non-photolithography surface roughening process.Keywords: LED, AlGaInP, Cu substrate, Reflector, Surface roughening

在实验的第二部份是开发磷化镓窗口层之粗化制程，我们是藉由正面金/铍欧姆接触电极之熔合制程，使铍扩散至磷化镓层，同时利用铍渗入磷化镓造成之特殊组成，可形成不均匀之蚀刻阻挡，而在磷化镓表面形成粗化，我们发现480℃、10分钟的熔合制程，加上浸泡磷化镓蚀刻溶液6分钟，可将四元发光二极体之发光亮度由42 mcd 提升到50 mcd，经由此无光罩粗化制程可将亮度提升18%，明显提升磷化铝铟镓发光二极体之外部量子效率。

Distribution of luminous intensity having an axis of symmetry or at least one plane of symmetry.

对光源而言，至少有一轴对称或面对称的光强分布。

Candela: Unit of luminous intensity of a light source.

烛光：光源发光强度的单位。

Luminous intensity is indicated with the symbol I and its unit of measurement is the candela.

其定义符号为 I 以及其测量单位表示为烛光。

Luminous intensity: the light source in a given direction within a unit solid angle as the light source luminous flux launched at the direction of the luminous intensity, or light intensity, I used to that unit candela.

发光强度：光源在某一给定方向的单位立体角内发射的光通量称为光源在该方向的发光强度，简称光强，常用I来表示，单位为坎德拉。

The luminous intensity ,luminous flux and color coordinate of high-power white LED have relations with different place.

分析了大功率白色发光二极管的发光强度、光通量和色坐标与测量位置的关系，提出了解决的方法。

Distribution of luminous intensity that may be represented by rotating about an axis a polar luminous intensity curve in a plane containing that axis.

可以围绕一个旋转轴或至少一个对称面的光强度分布。

According to the change of material's performance, the luminous intensity of optical fiber is also varied and inspected by the luminous intensity meter. The static resistance meter is also used to measure the transformation of the composite material.

使用光功率计检测空心光纤光强输出的变化量，并利用静态电阻测量仪检测复合材料本身的变化，依此来判别空心光纤承载压缩的能力。

2 Is the off-axis angle where the luminous intensity is 1/2 the peak intensity.

1 / 2是离轴角度处的发光强度为1 / 2的峰值强度。

Luminous intensity is the intensity in a given direction of visible light.

可见光在某一特定方向内所发射的强度就是光强 I，一般来讲，光线都是向不同方向发射的，并且强度各异。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。