Video Library
Learn More About Negative Thermal Expansion and ALLVAR Alloys
Add negative CTE to your design toolbelt! ALLVAR offers a wide range of educational videos on the principals of thermal expansion. Learn how these properties fit into the design of optical and mechanical systems. Want to see negative thermal expansion in use? Check out the demo videos to see ALLVAR Alloys in action.
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Athermalizing Optics Part 2: Athermal Doublet Example with ALLVAR Alloy 30

Athermalizing Optics Part 1: Understanding the equations

CTE Part 3 – Average and Instantaneous CTE in Some Real Materials

Optics Part 2 – The Coefficient of Thermal Defocus on Real Materials

Optics Part 1 -The Coefficient of Thermal Defocus

Creating a Zero Thermal Expansion Part 3 -Tailoring Thermal Expansion to Achieve Zero Expansion with ALLVAR Alloys

CTE Part 1 – Average and Instantaneous Calculations

CTE Part 2 – How to Choose Between Average or Instantaneous Calculations

Creating a Tuned Thermal Expansion Part 2 – Tailored Expansion with Multi-Components

Creating a Tailored Thermal Expansion Part 1 – Using ALLVAR Negative Thermal Expansion Alloys to create a target CTE.

Passive Athermalization Solutions for Optical System Alignment

Meet the ALLVAR Team

Jeremy McAllister talks at SPIE AR/VR/MR

Dr. James A. Monroe Talks about SPIE AR/VR/MR

Application: Negative Thermal Expansion Components for Thermal Focus Stability in optics

Visual Comparison of Thermal Focal Shift in Common IR Optic Materials versus ALLVAR

Negative Thermal Expansion Washer Demo

Reducing the length of athermal optics with ALLVAR Alloys

Deriving a Passive Athermalization Figure of Merit for Length Comparison
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