A Gaussian beam is a beam of electromagnetic radiation whose transverse electric field and intensity (irradiance) distributions are described by Gaussian ...

At Fidelity, Diversity, Equity, and Inclusion are viewed as major keys to the success of their business, which is why they are challenging you to come up with innovative ways to create forward-thinking financial tech that promotes equality for all people! We want you to use your hacking skills to find and build solutions that put financial opportunities and resources within reach for all communities, creating accessible, sustainable, and/or inclusive solutions. The team with the best hack will win a Fidelity branded wireless charger for each team member!

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Starknet is a general-purpose network where you can write and deploy your own smart contracts and interact with other contracts just like Ethereum. Build your application around Starknet using Rust or Python for your backend infrastructure, Starknet DSL for smart contract development, and React / JavaScript for your front end user interface. There are several SDKs available for you to choose from, making integrating Starknet into your hackathon project a breeze. Use Starknet in your project this weekend for a chance to win a Starknet care package, including a backpack, socks, water bottle, and a ticket to a Starknet sponsored Web3 conference of your choice!

Mar 11, 2024 — It is based on Windows Embedded POSReady 7, a lightweight version of Windows 7 intended for use in embedded industry devices and serves as a ...

Edmund Optics, Barrington, New Jersey. 11888 likes · 107601 talking about this · 169 were here. For 80 years Edmund Optics has been a leading producer...

Artificial Intelligence (AI) models, such as large language models (LLMs), are transforming how we interact with computers. During this weekend's hackathon, we want you to apply AI towards improving education to produce tools that support the quality, accessibility, and equitability of learning in today's classrooms. You can use AI to address any challenge teachers and students face, such as curriculum planning, question selection, teacher training, content generation, personalized feedback, automated grading and more.

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There are several types of manual translation stages determined by the type of movement between the moving plate or carrier and fixed plate or base. They are dovetail slide, ball bearing, crossed-roller bearing and flexures.

At first glance, you will see that a linear translation stage is a simple enough looking device consisting of a moving carrier or rail where a load is attached, such as an optical mirror or lens, a fixed base which supports the carrier plate, a bearing interface allowing the carrier to slide on or against the base and an actuator for precise positional control of the carrier. Although these stages can be simple in appearance, there are a lot of design criteria in developing linear translation stages. These include material selection, bearing and flexure mechanisms, and drive options such as actuators and screws. More information on linear stage design elements can be found in a technical note titled Linear Translation Stage Technology Guide by Newport Corporation.

For this challenge, we encourage you to draw on your own educational experiences and propose technical solutions to problems you've regularly encountered as students — after all, you are the best to know where our education system needs improvement. Design impactful and effective AI tools for education for a chance to win a TickTime Pomodoro Timer!

3) If you do not yet have a Google Cloud Console account, sign up (https://console.cloud.google.com/freetrial?redirectPath=https://cloud.google.com/startup/apply) using your @business.com email address.

Redis Cloud (https://hackp.ac/redis-cloud-free) is the easiest way to build and scale real-time applications - Period! It includes Redis Stack, adding indexing, querying, full-text search, JSON, time-series, and probabilistic data structures to the already-rich set of features of Redis.

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Fine adjustment screws are the simplest and most cost-effective and consist of a fine pitch screw with a nut that is attached to the stage carrier. Micrometer heads allow for accurate position read-out in where position repeatability is required such as in a beam line where position of a pump laser position is critical in relation to a laser rod for example. Position resolutions of 1 μm is possible with micrometer heads.

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TinyMCE also has dozens of plugins (https://hackp.ac/tinymce-plugins) that allow developers to customize their user’s experience. From implementing accessibility checkers, autocorrect, and enhanced image editing to utilizing emoticons, adding responsive design with auto resize and even a ChatGPT AI Assistant, there’s a plugin for every use case imaginable!

Edmund Optics has posted a short video titled Important Concepts for Selecting Manual Translation Stages that briefly discusses these and other considerations.

This article will help you learn the basics of manual linear stages, learn how to select the best stage for your application and link you to a list of stages from the leading manufacturers so that you can compare products.

Show us how you’ve used Redis Cloud in a way that showcases your unique and specific data structure needs and each member of your team could win a personal, portable Redis Stack server IOT hardware unit to keep developing on the go. Find out why Stack Overflow Developers have voted Redis their “most loved and admired” noSQL database for years-running by rolling Redis into your MLH Hackathon project.

Hopefully you now uderstand the basic terminology and concepts underlying linear stages. Trying to link all of the concepts together with your need to develop an alignment station for your application. We suggest you start with the three most basic requirements - the travel range, sensitivity and load that you will be moving from point A to B. With these three parameters in mind, you can visit our list of manual linear stages which are available from top suppliers around the World to compare specifications and get pricing information.

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MATLAB and Simulink are computational tools used at over 100,000 businesses, government and university sites in over 190 countries. Use MATLAB and/or Simulink exclusively or integrate them into another tool for your next hack to win an exclusive MathWorks branded Wireless YoYo Speaker! You can also claim a free MATLAB software license to get started.

Cloudflare is one of the world’s largest networks enabling hackers like you to build, deploy, and deliver trusted applications, no matter where you are! With Cloudflare, you’ll have all the building blocks to create a full-stack application; from C3 instance deployment to object storage. You can even run machine learning models in the cloud and leverage your AI functionality via API requests using Cloudlfare’s Workers AI! Enjoy Cloudflare’’s generous free tier (https://hackp.ac/cloudflare) to get started at no cost! This weekend, we want you to build an AI Application utilizing Cloudflare’s numerous services for a chance to win Arduino Student Kits for you and your team!

There are also more specialized stage types for environments which require extremely low friction. These are not typically used in optical alignment systems. There stages incorporate hydrostatic bearings using air or a clean gas and are much more expensive due to the complexity of the design and the system needed to supply the air or gas.

If your system requires finer positioning, a differential micrometer can be used. These devices use the difference between two fine-pitch threads combined on one micrometer resulting in positioning of less than 1 μm. Any manufacturer of linear translation stages offers a wide variety of actuators for precise positioning.

Sign up for your free Redis Cloud account(http://hackp.ac/redis-cloud-free), and head over to the MLH jump off page (https://hackp.ac/redis-university-mlh) on Redis University (http://hackp.ac/redis-university) for more info and docs links. Enter coupon code MLHFall2023 to claim your Redis Cloud credits and get started for free!

Put your sports & movies knowledge to the test and try to fill out an immaculate grid! New grid every day!

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by G Zhang · 2023 · Cited by 6 — The lens or light source is fixed on a linear electric stage, which adjusts the beam divergence angle by changing the distance between the light ...

The dovetail slide is the most common and cost effective stage capable of the highest loads and longest length of travel. But, it also has the highest friction and so is the most inaccurate in positioning. These are used where coarse positioning is sufficient.

Linear stages are the most common optical system elements that provide precise, repeatable and stable positioning of an optical element or other device in many optical alignment systems at laser manufacturer's around the world. In a paper by Anees Ahmad from the Center for Applied Optics optical systems can have 10 to 15 mirrors and lenses that must be axially positioned relative to one another and centered on a common optical axis with tolerances of a few microns. It is impractical and cost prohibitive to manufacture the optical components to micron level machining accuracies. It is much more practical and economical to fabricate the optics and mounts to standard machining tolerances and then to provide adjustment mechanisms to align the optical elements.

Jun 3, 2024 — Ordnance Factory Khamaria, CARTG 76.2MM NAVAL HEPF.

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TinyMCE (https://hackp.ac/tinymce) is a rich-text editor that allows you to create formatted content within a hacker-friendly interface. Adding a Rich Text Editor component (https://hackp.ac/tinymce-docs) has never been easier! Alongside functionality like bold, italics, underlines, hyperlinks, or titles (to name a few), the editor also allows users to enable HTML tags, MarkDown or CSS. TinyMCE even gives you the ability to edit your text elements directly with no code, similar to the way you would edit a word document.

Still not sure what backend to use in your hack? Kintone (https://hackp.ac/kintone) is a low-code web database that lets you set up your backend in minutes. It's beginner friendly, allowing you to customize your Kintone app using nothing but JavaScript and HTML. If you're interested in IoT, your team can snag a FREE microcontroller by signing up for Kintone (https://hackp.ac/kintone-developer-license) and visiting the MLH table. If you use Kintone in your hackathon project(https://hackp.ac/kintone-hackathon-idea), you'll have a chance to win a breadboard IoT kit to power up the hardware hacking for each member of your team!

We are inviting you to our Hosted by MLH month-long digital hackathon series! This event will feature tons of prizes from MLH partners, and we’re so excited to see what you create this month.

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Ball bearing stages are common for general purpose precision, moderate load capability and have very low friction but are more expensive than dovetail stages. Roller bearing stages have a higher load capacity and offer increased repeatability and load carrying capacity than ball bearings. They are also higher cost compared to ball bearing stages.

Jul 9, 2024 — The form and material of a lens significantly influence how it refracts light. Lenses can be convex, concave, or a combination of both, each ...

In more complex alignment systems where there are multiple mirrors, lenses and other components a combination of these stages may be required depending on the factors such as load, travel and sensitivity of the device being moved.

A diffractive Beam Splitter, or Multispot (MS), is a grating-like periodic diffractive optical element (DOE) used to split a single laser beam into several ...

While you’re hacking this month, don’t forget to check out some of the awesome workshops and mini-events we have happening.

If you are working on almost any laser based development application, you have already determined that you will need some sort of motion translation stage for small incremental movement of focusing optics and other components. While it may seem simple to move an object from point A to an optimal point B, there are important factors you should take under consideration that will determine which translation stage best fits your application. These factors will also contribute to the cost effectiveness, efficiency, throughput and maintenance or technical support of your motion control system.

Do these three things, and you can get up to $2,000 USD in cloud credits over 2 years, technical training, business support, and Google-wide offers! On top of that, the team with the most innovative idea will win a Google Branded Backpack.

Redis Stack works with all of your favorite programming languages and can be added to any existing application. It’s the easiest way to build real-time applications that scale and perform.

Taipy is a powerful yet easy to use open-source Python library for creating full stack web applications! If you’re a Python developer, this library enables you to build interactive and dynamic graphical user interfaces and support them with data-driven backends. All of these functionalities are just a pip install taipy away and can cut your development time in half! Use Taipy in your hackathon project for a chance to win a set of Wireless Headphones for you and each of your team members, as well as a chance to have your project featured on the Taipy website!

You have no doubt run across the term actuator by now. Actuators for a linear translation stage are used for adjusting the carrier to a precise point in your system. These actuators can be fine adjustment screws or micrometer heads, the difference between the two types being capability of position read-out for micrometer heads.

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Viewing Head/Body that houses the optical components in the upper part of the microscope · Focus Block that attaches the microscope head to the stand and focuses ...

This full page magnifier desk lamp illuminates and magnifies books, magazines or any project without glare or distortion. Daylight24 offers brighter and whiter ...

Hopefully, you are now a bit more familiar with the terminology so that you can speak more accurately about translation stages. There are important factors to consider when selecting the translation stage for your alignment system. The most important of these are load on the stage, range of travel and positional accuracy, repeatability and sensitivity. Other factors you should consider are the environment the alignment system will be used in such as a clean room, sensitivity to vibration, and thermal environment, these will help determine the construction material of the stage. Vibration, temperature variations and contamination (on the optics) could have a large impact on the stability and repeatability of your alignment system. Understanding these factors will help determine what type of stage you will need. A good reference describing these factors and the types of stages is a paper by Katie Schwertz and J. H. Burge of the University of Arizona titled Cost and Performance trade-offs for commercially available linear stages.

As always, focus on having fun, learning from fellow hackers, and making new friends! Whether this is your first or 100th hackathon, there's always plenty to experiment with!

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