Your partner for innovative 3D vision solutions in metrology, biometrics, medical devices and cameras.
After years of engineering research and development aimed at replacing bulky and convoluted 3D vision solutions with a small and simple one, Angstrom Vision is ready to deliver to market compact, high-speed and ultra-accurate 3D/4D technologies that capture images and instantly reconstruct astonishing 3D depth data.
About Us
Angstrom Vision is a 3D vision solution provider for applications based on digital holography design and software development. We offer industry-leading 3D microscope solutions for manufacturing, life sciences, biometrics, medical devices, cameras and beyond. Angstrom Vision is ready to deliver our proven technologies, software and design skills to parts inspection machine builders, system integrators, and medical and biometrics product manufacturers.
Standing among the industry 4.0 revolution with a solid foundation built on breakthrough digital holography technologies, Angstrom Vision will strive to innovate in research and development to achieve high productivity in microparts manufacturing, top security in biometrics, quick and accurate scanning in medical devices, and novel 3D user experiences in mobile phones and cameras.
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Our Solutions
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Products
Today, Angstrom makes only custom 3D microscopes and systems because of the varying needs and characteristics of different industries. We are planning on making several types of holographic microscope hardware that is accompanied by different software solutions to target specific industries and applications. Other products for biometrics, medical devices and cameras will follow.
Technologies
The Holographic Approach has the ability to capture the "phase" of optical field as well as its amplitude, which differentiates it from conventional “photographic” imaging where only the amplitude (i.e. intensity) of light is captured.
To capture the phase of a fast-oscillating optical field, it is being converted into intensity variations by mixing the optical field under study with a reference one. Thus, holography requires a coherent light source (i.e. a good laser) and a beam-splitter to create object and reference waves. The object wave will illuminate the subject under study, while the reference wave will be mixed with the returned object wave at the image sensor. The intensity of object and reference field interference is measured in real-time by a digital camera, and phase and amplitude estimations of the object optical field are obtained by special image-processing algorithms.
Having the phase information enables many new exciting possibilities. For example:
Ability to digitally refocus a captured image and to find the best focus by off-line digital processing after the hologram was captured.
“Super-resolution” or ability to compensate for optical aberrations of the imaging system to achieve the best theoretically possible resolution limit.
Ability to reconstruct the 3D shape of imaged objects.
These properties are used to create a Digital Holographic Microscope (DHM) that would capture a 3D image instantly without the lengthy scanning process, which is an essential part of confocal microscopy or white light interferometry. Furthermore, the properties could be used for making other types of 3D devices used in biometrics, medical 3D imaging and even camera industries.
In some sense, this holographic depth reconstruction can be seen as an ultimate “fringe projection” or “Moiré pattern” system, pushed to their limits. That is, the “holographic fringes” can have the finest structure possible. This would maximize image lateral resolution, making it much better than the one of a traditional Moiré approach. Moreover, contrast of those “holographic fringes” would not be affected by the imperfections of the imaging lens.
But this raises a question: “If Digital Optical Holography is so good, why isn't it being used everywhere?”
There are several reasons for that and, in what follows, we’ll mention some obstacles in applying the DHM to practical tasks and present our remedies for some of them.