搜索结果: 1-15 共查到“光学 3D”相关记录27条 . 查询时间(0.101 秒)
中国科学院研究实现蓝相液晶3D双手性图案的时空可编程打印(图)
打印 光学 数据
2024/11/30
动态色彩控制在显示器、数据加密和信息存储等领域应用广泛。相比传统仅限于表面层级的颜色调控方法,时空色彩控制能够利用光的波长、偏振、相位等变化以实现立体彩色像素的三维操控,提升信息容量和多功能性。蓝相液晶具有分子级自组装的三维周期排列的手性结构、快速响应和可调偏振颜色,成为理想的光学信息操控平台,在3D柔性显示器中展现出应用前景。现有研究多依赖外部刺激,缺乏自适应颜色变化的能力。特别是,蓝相液晶在微...
上海光机所在3D打印激光照明透明陶瓷研究方面取得进展(图)
3D打印 激光照明 陶瓷
2023/11/29
2023年9月28日,中国科学院上海光学精密机械研究所红外光学材料研究中心在增材制造(3D打印)激光照明透明陶瓷研究方面取得进展。相关工作通过数字光处理打印技术(DLP)实现了3D打印用于激光照明的高密度铈活化镥铝石榴石(LuAG:Ce)陶瓷,通过3D打印技术制造具有复杂几何结构的激光照明透明陶瓷,突破了传统陶瓷成型工艺的限制,相关研究成果以“3D Printing of LuAG:Ce Tran...
水凝胶具有类似于细胞外基质的理化性质,具备良好力学性能、自愈合能力和响应性,可用于构建组织再生的微纳米仿生结构,并提供微米尺度的表面形态来调节细胞行为,如细胞粘附、迁移或生存增殖分化因子的释放。因此,水凝胶被广泛应用于组织工程和药物递送等领域。然而,制备高精度的三维(3D)任意生物相容性水凝胶支架颇具挑战性。为了适应未来生物医学领域的发展,亟需开发具有精细3D几何结构的新型水凝胶材料。
水凝胶具有类似于细胞外基质的理化性质,具备良好力学性能、自愈合能力和响应性,可以用于构建组织再生的微纳米仿生结构,并提供微米尺度的表面形态来调节细胞行为,如细胞粘附、迁移或生存增殖分化因子的释放。因此,水凝胶被广泛应用于组织工程和药物递送等领域。然而,制备高精度的三维(3D)任意生物相容性水凝胶支架仍然是一个挑战。为了适应未来生物医学领域的发展,开发具有精细3D几何结构的新型水凝胶材料势在必行。
宋延林课题组发展结构色3D打印新策略(图)
宋延林课题组 3D打印 结构色 三维光子晶体
2023/1/6
中国科学院上海微系统所等发展出集成3D打印编码滤波器的超导单光子光谱仪(图)
上海微系统 集成3D打印 编码滤波器 单光子光谱仪
2022/10/20
2022年10月20日,中国科学院上海微系统与信息技术研究所尤立星/李浩团队、陶虎团队,联合上海交通大学王增琦团队,结合超导纳米线单光子探测技术、双光子3D打印编码滤波技术、计算重构技术等实现单光子计数型光谱分析仪。相关成果以Superconducting Single-Photon Spectrometer with 3D-Printed Photonic-Crystal Filters为题,在...
3D RECONSTRUCTION FROM UAV-BASED HYPERSPECTRAL IMAGES
Cubert UHD185 Hyperspectral images Structure from motion 3D reconstruction Database
2018/5/15
Reconstructing the 3D profile from a set of UAV-based images can obtain hyperspectral information, as well as the 3D coordinate of any point on the profile. Our images are captured from the Cubert UHD...
3D RECONSTRUCTION-REVERSE ENGINEERING – DIGITAL FABRICATION OF THE EGYPTIAN PALERMO STONE USING BY SMARTPHONE AND LIGHT STRUCTURED SCANNER
Cultural Heritage Structured Light Scanning Smartphone 3D modeling 3D sculpting Digital Fabrication
2018/6/4
This paper presents a pipeline that has been developed to acquire a shape with particular features both under the geometric and radiometric aspects. In fact, the challenge was to build a 3D model of t...
SPECTRAL AND 3D CULTURAL HERITAGE DOCUMENTATION USING A MODIFIED CAMERA
Spectral imaging image-based 3D reconstruction cultural heritage camera characterisation image quality
2018/6/5
Spectral and 3D imaging techniques are used for museum imaging and cultural heritage documentation providing complementary information to aid in documenting the condition, informing the care, and incr...
2018年SPIE3D打印光学和添加光子制造会议(SPIE 3D Printed Optics and Additive Photonic Manufacturing)
2018年 SPIE 3D打印光学和添加光子制造 会议
2017/10/27
3D printing technologies are revolutionizing today’s fabrication methods, from research prototypes to individualized mass-production. This trend is accelerated by a growing number of available printin...
面曝光3D打印机光强检测补偿系统研究与实现
面曝光3D打印 DLP投影仪 光强补偿
2017/8/22
针对面曝光3D打印设备投影仪光强分布不匀的问题,提出了一套完整的修正方案,通过在上位机软件中添加灰度掩膜的方式实施光强补偿。利用紫外光传感器、Arduino控制板、步进电机等搭建自动化数据采集设备;设计算法剔除测量误差,提升传感器测量精度至±10-5 W/cm2。本系统可根据传感器反馈逼近直接获取离散的补偿掩膜灰度数据,建立灰度分布数学模型并利用Qt setPixel函数完成掩膜绘制,在简化计算、...
GEOMATIC 3D MODELING OF A STATUE (ALSO) FOR STRUCTURAL ANALYSIS AND RISK EVALUATION: THE EXAMPLE OF SAN GIOVANNINO MARTELLI IN FLORENCE
Laser scanning 3D Modeling Cultural Heritage Structural Analysis Level of Detail Finite Element Method
2017/6/20
This work has been developed among the researches of a PhD thesis in Civil and Environmental Engineering and Architecture of the University of Udine in cooperation with the GECO Laboratory of the Univ...
COMPARATIVE ANALYSIS OF 3D POINT CLOUDS GENERATED FROM A FREEWARE AND TERRESTRIAL LASER SCANNER
Laser Scanning Close Range Photogrammetry Point clouds Heritage VSfM
2017/8/10
In the recent past, several heritage structures have faced destruction due to both human-made incidents and natural calamities that have caused a great loss to the human race regarding its cultural ac...
3D LANDMARKS – GENERATION, CHARACTERISTICS AND APPLICATIONS
Close Range Laser scanning Multimedia Navigation Photogrammetr
2015/10/8
3D landmarks are outstanding virtual 3D models of buildings. They can be generated using close-range photogrammetry, terrestrial
laserscanning or 3D modelling. The complexity of the geometry is low-...
FAST CORRESPONDENCE SEARCH FOR 3D SURFACE MATCHING
Least squares 3D surface matching Point clouds Registration Laser scanning Correspondence searching
2015/8/13
An algorithm for least squares matching of overlapping 3D surfaces is presented. It estimates the transformation parameters between
two or more fully 3D surfaces, using the Generalized Gauss-Markoff ...