像点
像点的相关文献在1985年到2023年内共计85915篇,主要集中在自动化技术、计算机技术、物理学、化学
等领域,其中期刊论文82篇、专利文献85833篇;相关期刊51种,包括青年博览、办公室业务、出版广角等;
像点的相关文献由50000位作者贡献,包括不公告发明人、杨一行、王允军等。
像点—发文量
专利文献>
论文:85833篇
占比:99.90%
总计:85915篇
像点
-研究学者
- 不公告发明人
- 杨一行
- 王允军
- 王伟
- 张伟
- 刘洋
- 张磊
- 王磊
- 李伟
- 王勇
- 张涛
- 刘勇
- 董贤东
- 郭太良
- 张鹏
- 刘涛
- 李强
- 陈伟
- 王刚
- 董川
- 张健
- 李波
- 刘伟
- 杨波
- 李宁
- 张杰
- 杨帆
- 李刚
- 王涛
- 孙小卫
- 王强
- 王斌
- 张凯
- 张勇
- 张宇
- 李明
- 王亮
- 肖琦
- 黄珊
- 王鹏
- 李超
- 李鑫
- 刘磊
- 双少敏
- 李斌
- 王军
- 钱磊
- 张超
- 李阳
- 王辉
-
-
-
邵云;
窦瑾
-
-
摘要:
文章给出物点经方玻璃砖两对面折射成像的三种计算方法,即二次成像法、导数公式法和平面几何法;做出像点位置随视角变化的轨迹图,从人眼视角方面分析了像点的位置特点,得到在相同的视角下像点随物点同步移动即两者相对位置固定这一结论,揭示出人们使用薄玻璃窗户的光学依据:文末,对文中的三种计算方法进行了评价,指出数学技巧对于几何光学的重要性.
-
-
管永建1;
张荣芳2
-
-
摘要:
在解析几何中有一类问题具备以下特点:(1)有一动点P在已知曲线上;(2)存在另一动点Q与动点P之间的向量线性等式作为条件.这类问题在通俗意义上可以解释为:曲线上某一点P通过向量的线性关系映射后落在另一曲线上;也可以形象地理解为:向量线性关系看作一个"小孔",曲线上某一点P看成一物体,物体P通过小孔形成像点Q,设出点P的坐标,通过向量线性关系和物体P所在曲线方程,就可得到像点Q的曲线方程.
-
-
-
常山;
桑志文;
庄玲
-
-
摘要:
为了利用波动光学的衍射理论分析处理球差,采用先计算像点的光强分布再进一步分析处理球差的方法,对球差进行了理论分析和模拟.从基于点源圆孔衍射的成像原理出发,经过适当推导得到高斯像面上仅有球差像点的光强分布的解析计算式,分析探讨了高斯像面上球差的衍射机理及其计算与校正.结果表明,这种方法能够更为精细地分析处理球差,有助于在光学设计中对球差进行像差平衡与校正、光学加工中对球差的检测与修正以及数码成像时对球差做电子校正等,有利于促进激光技术和微光学以及微光机电系统的发展.%In order to study how to analyze spherical aberration based on the diffraction theory of wave optics, theoretical analysis and simulation were carried out. Firstly, the light intensity distribution of the image point was calculated and then the spherical aberration was further analyzed and processed. Starting from the imaging principle a circular aperture irradiated by a point source, referring to relevant documents, analytical expression of the intensity distribution of the image point only with spherical aberration on the Gaussian image plane was deduced. The diffraction mechanism and calculation and correction of spherical aberration on Gaussian image plane were analyzed and discussed. The method can handle spherical aberration more accurately. It is helpful for balancing and correction of spherical aberration in optical design and the detection and correction of spherical aberration in optical processing and electronic correction of spherical aberration in digital imaging, and conducive to promote the development of laser technology and micro-optics and micro-optoelectro mechanical systems.
-
-
常山;
吴波;
毛杰健;
邵辉良;
杨志华
-
-
摘要:
Starting from imaging principle based on diffraction of circle aperture irradiated by point source, the calculation formula of light field distribution of image point with distortion is deduced. The diffraction mechanism and characteristics as well as calculation and correction method are discussed. Simulations show that this theory and method are feasible and helpful to carry out distortion aberration balancing and correction in optical design, as well as detection and correction of distortion in optical processing and electronic distortion correction in digital imaging systems%从基于点源圆孔衍射的成像原理出发得到了仅有畸变像点的光场分布的计算式,分析探讨了畸变的衍射机理及其计算与特征以及校正方法,模拟实验表明了这一理论和方法的可行性,有助于光学设计中对畸变进行像差平衡与校正和光学加工中对畸变的检测与修正以及数码成像系统中对畸变做电子校正等.
-
-
-
-
柳仕飞;
常山;
毛杰健;
杨建荣;
宋月平
-
-
摘要:
Objective: To research how to make use of the diffraction theory of wave optics to analyze chromatic aberration; Methods: Reference to the related literature after appropriate reasoning, the formula of light field distribution of imaging point which monochromatic light goes throughout optical system without monochrome aberration is deduced, then the diffraction mechanism of position chromatic aberration and magnification chromatic aberration are analyzed and the formula of chromatic aberration is given, and then chromatic aberration correction of optical system or photoelectric detection image and availability of chromatic aberration are discussed. Results: Compared with geometrical optics, diffraction theory analyzing and processing chromatic aberration show that not only mechanism of chromatic aberration is revealed better but also calculation and correction of chromatic aberration of optical system and photoelectric detecting image are improved in a certain degree. Conclusions: The views and methods of analysis and processing of chromatic aberration based on diffraction theory are helpful to analyze and process chromatic aberration in optical engineering and to promote further development of aberration theory.%目的:研究怎样利用波动光学的衍射理论分析处理色差.方法:从基于点源圆孔衍射的成像原理出发,参考有关文献,经过适当的推理得到了单色光经无单色像差系统所成像点的光场分布计算式,分析了位置色差和倍率色差的衍射机理并给出了色差的计算式,探讨了光学系统的色差校正和光电探测图像的色差校正以及色差的可利用性.结果:跟几何光学相比,利用衍射理论对色差的分析与处理,不但更深入地揭示了色差产生的机理,还对光学系统和光电探测图像的色差计算与校正有一定程度的改进.结论:这些基于衍射理论的色差分析与处理的观点及其方法,有利于在光学工程中对色差进行分析与处理,并且能够促进像差理论的进一步发展.
-