Parabolic mirrors are optical systems that are used to collect or distribute energy. They have a wide range of applications from solar collectors for water heating systems to microscopes and telescopes, and everyday flashlights. The most common way ...
在出色的镜头设计中，我们优化了两个波长，通常是红色（590nm）和蓝色（495nm），重点放在同一图像平面上。这样做是为了减少色差。在本文中，我们将讨论类似的设计类型，称为An ...
上一篇文章讨论了水下光学设计。本周，我们将审查直径相反的应用 - 自由空间光学通信（FSO）。与水下光学设计一样，FSO面临的挑战之一是光信号传播...
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...
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...
One important aspect of any design is user safety. This is especially important when using light sources like lasers and LEDs that may be observed by the naked eye. Disregarding safety can lead to product recalls, lawsuits, and harm to users. To protect users, a...
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...
作为光学工程师，我们使用不同的工具和技术来评估在射线跟踪程序中模拟系统时的光学设计性能。其中一种工具是斑点图。他们一开始使用可能有些混乱，但是...
Filters for selecting specific wavelengths are common in optical systems. In our microscope design article we explained the use of dichroic mirrors to select fluorescent wavelengths. In some applications optical engineers need to filter out high (UV light)...
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，...
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...
A Strehl ratio is used to define the quality of an optical system by showing how a real optical system compares to an ideal aberration-free system. The Strehl ratio incorporates the Point Spread Function (PSF) and its relation to wavefront aberration of the optical...
Depth of field is a distance range where the image optical resolution is as high as possible for that lens, i.e. an image appears to be in focus. When starting a lens design program, having a good understanding of this parameter’s physics will help you and your...
Optical invariants are mathematical expressions representing several optical parameters. The values for each optical invariant are constant despite the fact that optical parameters change from one part or element of the optical system to another. Optical invariants...
爸爸光学设计
Optics in the News – June 2022
Aviation Light Optic Design