| 1. | Near ultraviolet band 近紫外区 |
| 2. | Determination of hydroxybenzene in water by ultraviolet spectrophtometry is based on the theory that hydroxybenzene has absorption spectrum in ultraviolet band 摘要根据酚类在紫外区有吸收光谱的原理,以紫外分光光度法直接测定水中酚。 |
| 3. | Recently there has been an extensive worldwide effort to synthesize bn films and investigate ultraviolet sensitive properties of bn , which has an important significance to the development of ultraviolet band detecting 氮化硼薄膜材料的制备及其紫外光敏性能研究,是近年来宽禁带半导体材料研究的热点课题,对紫外波段信息探测领域的发展有重大意义。 |
| 4. | It is proved that it has many attractive features ( 1 ) its applicable spectral range is broad , many liquid crystals have very large birefringence and good transparency in both near ultraviolet band , visible band and infrared band 本文重点研究了可调谐液晶电光滤光片,它的主要优点有: 1 、可应用的光谱范围特别宽。许多液晶在紫外、可见光、红外都具有较大的双折射率和良好的透射性。 |
| 5. | Based on these above , the practical realization of bnxpi - x film applied in the ultraviolet band detecting device - ultraviolet liquid crystal light valve is discussed . the experiments and theory analyses prove that bnxpi - x film is a suitable candidate for ultraviolet liquid crystal light valve 在以上对氮化硼薄膜以及磷掺杂氮化硼薄膜制备工艺、性能和微结构研究分析的基础上,本论文还探讨了薄膜材料在紫外空间光探测器件?紫外液晶光阀上应用的可行性。 |
| 6. | Generally , the gravity introduced deformation of an optical lens with smaller aperture ( < ( 100mm ) within visible band is about ( / 20 even less than this value . for general optical lens , this error level can be entirely neglected . but for the high - accuracy optical system within extreme ultraviolet band , the error caused by gravity deformation will lead to imaging quality degradation 本文较为系统地介绍了光学镜头的装配与调校方法,一般地讲,在可见波段内,光学镜片口径较小( < 100mm )时,重力引起的变形一般/ 20左右甚至更小,对于一般的光学镜头这样量级的误差完全可以忽略,但在极紫外短波长的高精度光学系统中重力变形带来的误差会使光学系统成像质量下降。 |
| 7. | The nano - zno had high transparence property in the band of visible light , while the commercial zno powder was opaque . at the same time , nano - zno had wide absorption frequency as well as good absorption effect within the ultraviolet band . with the decreasing of the diameter of nanometer particle , blue shift of absorbing peak was observed 结果表明:纳米氧化锌在中红外频段与普通氧化锌的吸收能力相当,但由于纳米氧化锌的表面效应,其中红外吸收峰形状与普通氧化锌不同;在可见光区,纳米氧化锌具有普通氧化锌所不具备的高透光性;而在紫外光区,纳米氧化锌具有很宽的吸收频段和优异的吸收性能,同时,随粒径的减小,吸收峰发生蓝移。 |