来自流体的复杂光学成分。以色列理工学院的研究人员开发了一种新技术，可以通过固化液体聚合物来制造自由形式的光学器件。传统上，使用复杂的CNC设备制造自由形式的光学器件...
光学
Non-Contact Tonometers
This will be the last entry in our series of optical instrumentation for optometry. If this is the first article that you are seeing, I would suggest that you take a look at our previous articles about Ophthalmoscope Design, Keratometer Design, and Retinoscopy. This...
基点
当我还是一名年轻的本科工程专业的学生时，我总是发现光学元件是一个非常令人困惑的主题。它不仅是方程式，而且是最简单的光学系统中涉及的数百个不同定义。一些概念，例如...
What is Birefringence?
In a previous post, we explained the concept of a material refractive index in optics in the context of optical design. Something that we didn’t review however is that many materials have two, three (and even more) different refractive indices depending on the...
5个圆柱镜的应用
When thinking of a ‘lens’, most people have the image of a spherical lens in their mind, but there are different geometries for lenses. One very common geometry is that of cylindrical lenses. What’s the difference between spherical and geometrical lenses? And why do...
Using RMS wavefront error to evaluate optical quality
As mentioned in several articles in this blog, aberrations are of great relevance when designing an optical system. The objective being to design a system that creates a “good image”. However, there are different metrics to evaluate what is a “good...
4F光学系统的说明
A 4f correlator optical system is a system architecture that uses Fourier Optics. In this article, we will explain why we need them and how to design a simple 4f correlator. We will leave out most of the mathematical derivations, but if you are interested...
工程师需要了解折射率的5件事
简介折射率是光学科学中的基本概念之一。与体积和密度相同，折射率是所有材料的基本特性。但是，不仅在光学元件中使用的材料都具有折射率。例如，...
Types of Optical Prisms
光学史上最著名的图像之一是艾萨克·牛顿爵士（Isaac Newton）爵士的图像，一束白光穿过玻璃棱镜，另一侧露出彩虹。它是最著名的光学实验之一，不仅是为了简单，而且...
Uses of Sapphire explained; IR optics, laser optics, windows
IntroductionYou may not be aware but you probably have in your hands one of the toughest substances in the world right now. If you own a good quality watch chances are that it has a sapphire glass. Also, some versions of Appla watches and almost all mobile phones use...
用于步枪示波器的光学设计类型
秋天快到了，狩猎季节。在我的状态下，狩猎是如此受欢迎，以至于一个非官方假期，学校“取消”，国会获得休息一天。我不确定这是否发生在其他地方，但是可以说狩猎是很大的一部分...
Which is better a CCD or CMOS image sensor?
CCD vs CMOS CCD and CMOS are both image sensors. They can be found in any device that creates an image. Cameras, webcams, mobile phones. They are one of the most common consumer electronics in world. For many years there has been a debate about which image sensor: CCD...
Free multi-catalog lens search tool launched
上周，我们宣布为光学工程师推出免费的镜头搜索工具。它可在www.strongk.com/lens-search上获得可搜索的数据库，可允许在机器人技术，机器视觉，工业和安全行业工作的工程师...
选择镜头制造商
计划制造合适的时间开始生产计划的时间是光学工程项目的开始。设计与制造业密切相关，预期生产方法将极大地影响早期选择。...并不罕见...
Surface texture requirement in optical drawings
2020年6月更新。在上一篇文章中，我们讨论了如何在本期中阅读光学图纸，我们将重点关注表面饰面细节。光学镜头性能可能会受到透镜表面粗糙度的严重影响。表面纹理符号是...
为什么斑点和光束均匀性并不总是相等
对于许多LED光学项目，可以用单个均匀性值指定点尺寸和梁角。在30度以上的光束角度的情况下，事情变得棘手。请参阅下图以获取说明。如果您想了解数学...照明是...
5 Optics & LED Newsfeeds You Should Be Reading
More optics links we hope will spark your interest. Today’s batch: 5 optics related news sites you should be reading Image Sensors World Very high-quality blog on image sensors, including light field sensors, curated by Vladimir Koifman w/optional email digest. (Image...
Awesome optics startups-updated
Our original Super Cool Optics Startups list’s popularity prompted an update to include six more we wanted to share with you. Organic Robotics Their stretchable smart fabrics deliver optically based accurate motion capture and pressure sensing at the speed of light...
5+ “No-glasses” 3D displays you should see
The promise of floating 3D imagery seen without glasses has caught the imagination of millions even before Star Wars. Are we any closer making those science fiction dreams a reality? Need help? Click here to learn more about our custom optical engineering...
9种具有惊人“光学系统”的生物
我们希望更多的光学链接会激发您的好奇心。今天的批次，9个惊人的生物及其令人难以置信的光学系统。需要帮忙？单击此处以了解有关我们自定义光学工程服务的更多信息。188bet官网下载墨鱼这是一个没有人问的问题：...
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