Visible Infrared Recording
Visible Infrared Recording - Related Videos
10:26
Soft Lithographic Procedure for Producing Plastic Microfluidic Devices with View-ports Transparent to Visible and Infrared Light
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Cited by 1 •
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A protocol for the fabrication of plastic microfluidic devices with transparent view-ports for visible and infrared light imaging is described.
05:41
Functional Near-Infrared Spectroscopy for Recording Brain Activity During Social Interactions
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2025
Source: Reindl, V., et al. Conducting Hyperscanning Experiments with Functional Near-Infrared Spectroscopy. J. Vis. Exp. (2019) This video demonstrates the use of functional near-infrared spectroscopy (fNIRS) to measure brain activity during social interactions. Participants engage in a coordinated task that increases activity in the prefrontal cortex, a region critical for social behavior, while the system detects changes in light absorption due to blood oxygenation. By analyzing the synchrony...
07:38
Characterization of Biological Absorption Spectra Spanning the Visible to the Short-Wave Infrared
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Cited by 8 •
2025
Biological samples have distinct optical characteristics in the short-wave infrared (SWIR) compared to the visible (VIS) and near-infrared (NIR) wavelength ranges. However, recording pure SWIR absorption spectra is challenging and rarely conducted for biological molecules. This article presents a method to characterize the VIS-SWIR absorption spectra of biological absorbers.
10:35
Bringing the Visible Universe into Focus with Robo-AO
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Cited by 17 •
2013
Light from astronomical objects must travel through the earth's turbulent atmosphere before it can be imaged by ground-based telescopes. To enable direct imaging at maximum theoretical angular resolution, advanced techniques such as those employed by the Robo-AO adaptive-optics system must be used.
08:11
Infrared Spectroscopy
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2023
Source: Vy M. Dong and Zhiwei Chen, Department of Chemistry, University of California, Irvine, CA This experiment will demonstrate the use of infrared (IR) spectroscopy (also known as vibrational spectroscopy) to elucidate the identity of an unknown compound by identifying the functional group(s) present. IR spectra will be obtained on an IR spectrometer using the attenuated total reflection (ATR) sampling technique with a neat sample of the unknown.
FAQs
A wavelength-sensitive detector responds differently across the visible and infrared bands, producing intensity data for each recorded portion of a scene. Optical filters help isolate or combine selected wavelength ranges before recording. This separation allows an engineering team to compare spectral responses rather than relying on a single visual appearance, making heat patterns, surface differences, or other hidden features easier to identify.
Optical filters control which radiation reaches the detector, while the detector converts that radiation into recordable intensity values. Their interaction determines whether a recording emphasizes visible appearance, infrared response, or a combination of channels. Careful channel selection is important when the objective is to distinguish materials, inspect a surface, or monitor behavior that ordinary vision does not reveal.
Visible and infrared responses can emphasize different properties of the same scene. A feature that appears uniform to ordinary vision may show a contrasting heat pattern, defect, moisture-related difference, or surface variation in another spectral channel. Comparing the recordings therefore adds diagnostic information and can help engineers interpret material or system conditions without depending only on visible appearance.
The recording may capture radiation reflected from a material or emitted by a scene or system. These sources can produce different intensity patterns across the visible and infrared portions of the spectrum. Considering whether a recorded difference arises from reflection or emission helps engineers relate image features to surface characteristics, heat patterns, or system behavior during evaluation.
A typical workflow begins by positioning the camera toward the scene, material, or system being examined. The operator selects suitable optical filtering and wavelength-sensitive channels, records the resulting intensity data, and compares the visible and infrared responses. The combined record can then be reviewed for patterns associated with defects, heat, moisture, surface differences, or changing system behavior.
Engineering applications include thermal inspection, machine monitoring, materials characterization, environmental measurement, and quality control. The same recording approach can document a component, material, or operating system while revealing spectral differences that ordinary vision may miss. This makes it useful for examining conditions and performance without requiring direct contact with the evaluated system.
Comparison can reveal heat patterns, defects, moisture, and surface differences that are not evident in a conventional visual view. Engineers can use those observations to support diagnosis, evaluate materials, monitor machines, or assess quality. Because the technique records radiation from a distance, it also supports noncontact evaluation of complex systems and their behavior.