Visible light imaging is a family of methods that acquire spatially resolved information using electromagnetic radiation in the 400–700 nm range, detected by human-vision–matched sensors such as CCD or CMOS arrays. It encompasses bright-field microscopy, color and monochrome photography, and machine-vision systems that rely on reflected, transmitted, or emitted visible photons to generate contrast based on absorption, scattering, and fluorescence within this spectral band. These methods are widely used for noninvasive inspection, documentation, and quantitative analysis, often combined with controlled illumination, optical filters, and computational processing to enhance signal-to-noise ratio, extract morphological or spectral features, and enable automated measurement or classification.
A team of researchers from the University of California, Los Angeles (UCLA) has unveiled a new development in optical imaging technology that could significantly enhance visual information processing and communication systems.
Optics & Photonics
Oct 28, 2024
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Take a photo with your phone and you might see wonderful details—leaves on a tree, strands of hair blowing in the wind. The width of that strand of hair is 100,000 nanometers wide. The best traditional laboratory microscope ...
Nanomaterials
Oct 23, 2024
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70
A study by researchers from the Institute of Applied Physics at the Hebrew University of Jerusalem, published in Nature Photonics, presents a new method for non-invasive high-resolution imaging through highly scattering media.
Optics & Photonics
Oct 18, 2024
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88
What if you could hide an image in plain sight—so well that even the most advanced cameras couldn't detect it? Imagine encoding visual information using the properties of quantum optics, rendering it invisible to normal imaging ...
Scientists have found a new way to see how butterflies develop their colors.
Bio & Medicine
Sep 11, 2024
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112
Researchers have developed a new way to see organs within a body by rendering overlying tissues transparent to visible light. The counterintuitive process—a topical application of food-safe dye—was reversible in tests with ...
Optics & Photonics
Sep 5, 2024
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Researchers at the Paris Institute of Nanoscience at Sorbonne University have developed a new method to encode images into the quantum correlations of photon pairs, making it invisible to conventional imaging techniques. ...
Optics & Photonics
Sep 4, 2024
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179
In the quest to unravel the complexities of neural circuits, scientists are beginning to use genetically encoded voltage indicators (GEVIs) to visualize electrical activity in the brain. These indicators are crucial for understanding ...
Optics & Photonics
Aug 14, 2024
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83
The human eye can only see light at certain frequencies (called the visible spectrum), the lowest of which constitutes red light. Infrared light, which we can't see, has an even lower frequency than red light. Researchers ...
Optics & Photonics
Jun 20, 2024
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198
With the exponential growth of data globally, the demand for high-speed acquisition and long-distance transmission of multidimensional data is escalating. Online video surveillance in sectors like industrial manufacturing ...
Optics & Photonics
Jun 14, 2024
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111
