Measuring Prisms: Multiple Wavefront Channels in One Setup

Prisms assemblies are difficult optical elements to measure. Back reflections from multiple surfaces and multiple channels make laser interferometry incapable of making these measurements. Spectrally Controlled Interferometry (SCI), available from Apre Instruments, offers an easy-to-use, accurate method to measure these components for the first time. A laser light source interferometer (for example a laser Fizeau) … Continue reading

Blog, Interferometers, Systems

Measuring Prisms with Apre’s Spectrally Controlled Interferometry (SCI)

Prisms are complex optical components. Transmitted wavefront performance is controlled by multiple surfaces, the angle between them, and the material’s homogeneity. Spectrally Controlled Interferometry (SCI) available from Apres Instruments enables their S-series interferometers to make prism measurement fast, easy and more accurate than conventional methods. SCI simplifies and speeds up the measurement process for S1 and … Continue reading

Blog, Interferometers, Systems

greateyes’s EL Inspection Systems Detect Breaks in Photovoltaic Modules

A new publication from Subinoy Roy and Prof. Rajesh Gupta of the Department of Energy Science & Engineering at IIT Bombay Indian Institute of Technology, entitled “Investigation and Analysis of Finger Breakages in Commercial Crystalline Silicon Photovoltaic Modules under Standard Thermal Cycling Test”, appears in Engineering Failure Analysis, Volume 101. The researchers are utilizing greateyes’s … Continue reading

Blog, Cameras and Imaging, Systems

Spectrally Controlled Interferometry from Apre

Fizeau Interferometry without Back Reflections! Do confused interference fringes frustrate your ability to make plates and prisms? Finally there is a better way, without the hassle of painting, greasing or taping the back surface. a better way, without the hassle of painting, greasing or taping the back surface. Äpre’s Spectrally Controlled Interferometry (SCI) based interferometers … Continue reading

Blog, Interferometers, Systems

Interferometer for Micro Optics Process Control

Small, in a BIG way! Improve your optics performance, while lowering cost with this interferometer for micro optics control from Apre Instruments. Features include: Easy-to-use 6 mm aperture, S6|HR: 500 µm to 6 mm optics. 4.2 Megapixel camera, for 16 µm resolution. Spectrally Controlled Interferometry (SCI): No back reflections. Easy setup in long coherence mode. Production … Continue reading

Blog, Interferometers, Systems