Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Attenuated Total Reflectance (ATR) Infrared Spectroscopy: Overview01:13

Attenuated Total Reflectance (ATR) Infrared Spectroscopy: Overview

1.3K
Attenuated total reflectance (ATR) infrared spectroscopy is a powerful analytical technique used to study the composition of materials. It is widely employed in chemistry, materials science, forensic science, and other fields where sample characterization is required. ATR has several advantages over traditional transmission IR spectroscopy, including the requirement of little to no sample preparation and the ability to analyze a wide range of samples.
The ATR process begins by directing a beam...
1.3K
Reflection of Waves01:07

Reflection of Waves

4.7K
When a wave travels from one medium to another, it gets reflected at the boundary of the second medium. A common example of this is when a person yells at a distance from a cliff and hears the echo of their voice. The sound waves (longitudinal waves) traveling in the air are reflected from the bounding cliff. Similarly, flipping one end of a string whose other end is tied to a wall causes a pulse (transverse wave) to travel through the string, which gets reflected upon reaching the wall. In...
4.7K
Thermal expansion and Thermal stress: Problem Solving01:27

Thermal expansion and Thermal stress: Problem Solving

2.2K
San Francisco's Golden Gate Bridge is exposed to temperatures ranging from -15 °C to 40 °C. At its coldest, the main span of the bridge is 1275 m long. Assuming that the bridge is made entirely of steel, what is the change in its length between these temperatures?
To solve the problem, first, identify the known and unknown quantities. The initial length (L) of the bridge is 1275 m, the coefficient of linear expansion (α) for steel is 12 x 10-6/°C, and the change in temperature (ΔT) is 55...
2.2K
The Sense of Self: Reflected Self-Appraisal and Social Comparison02:57

The Sense of Self: Reflected Self-Appraisal and Social Comparison

56.1K
According to Charles Cooley, we base our image on what we think other people see (Cooley 1902). We imagine how we must appear to others, then react to this speculation. We don certain clothes, prepare our hair in a particular manner, wear makeup, use cologne, and the like—all with the notion that our presentation of ourselves is going to affect how others perceive us. We expect a certain reaction, and, if lucky, we get the one we desire and feel good about it. But more than that, Cooley...
56.1K
Thermal Strain01:19

Thermal Strain

2.9K
Thermal strain is a concept that arises when we consider how temperature changes affect structures. Unlike the conventional assumption that structures remain constant under load, real-world scenarios often involve temperature fluctuations that can significantly impact these structures. Consider a homogeneous rod with a uniform cross-section resting freely on a flat horizontal surface. If the rod's temperature increases, the rod elongates. This elongation is proportional to the temperature...
2.9K
Reflective Property of Parabolas01:26

Reflective Property of Parabolas

289
A parabola is a basic type of conic section that results from the intersection of a plane with a double-napped cone in a direction parallel to one of the cone's sides. This U-shaped curve has a distinctive reflective property: all incoming rays parallel to its axis of symmetry are directed toward a single point, known as the focus. This property is widely utilized in optical and communication technologies that require precise signal concentration.In analytic geometry, a parabola is defined as...
289

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Solar eclipse sky brightness and color.

Applied optics·2026
Same author

Dynamic focusing using a MEMS mirror in a coherent lidar.

Applied optics·2025
Same author

Polarization enhancement of contrast through a water surface.

Applied optics·2025
Same author

Polarization images of the Moon as a function of the lunar phase.

Optics express·2024
Same author

Optical turbulence profiling at the Table Mountain Facility with the Laser Communication Relay Demonstration GEO downlink.

Optics express·2024
Same author

Influence of NaCl concentration on the optical scattering properties of water-based aerosols.

Applied optics·2023

Related Experiment Video

Updated: Feb 11, 2026

Diffuse Reflectance Infrared Spectroscopic Identification of Dispersant/Particle Bonding Mechanisms in Functional Inks
10:31

Diffuse Reflectance Infrared Spectroscopic Identification of Dispersant/Particle Bonding Mechanisms in Functional Inks

Published on: May 8, 2015

14.2K

Reflective all-sky thermal infrared cloud imager.

Brian J Redman, Joseph A Shaw, Paul W Nugent

    Optics Express
    |May 3, 2018
    PubMed
    Summary

    A novel reflective all-sky imager uses a microbolometer camera and metal sphere to measure cloud patterns and optical depth. This system accurately measures sky radiance, crucial for Earth-space optical communications.

    Area of Science:

    • Atmospheric Science
    • Optical Engineering
    • Remote Sensing

    Background:

    • Accurate measurement of cloud properties is essential for Earth-space optical communications.
    • Existing infrared cloud imaging systems can be bulky and complex.
    • A compact, reflective system offers a potential alternative for cloud monitoring.

    Purpose of the Study:

    • To develop and validate a compact reflective all-sky imaging system.
    • To measure spatial and temporal cloud patterns and optical depth.
    • To assess the system's performance for Earth-space optical communication applications.

    Main Methods:

    • Utilized a long-wave infrared microbolometer camera and a reflective metal sphere.
    • Implemented geometric distortion correction using an angular map derived from checkerboard imaging, ray tracing, and sun-based alignment.

    More Related Videos

    Quantitative Visualization and Detection of Skin Cancer Using Dynamic Thermal Imaging
    06:08

    Quantitative Visualization and Detection of Skin Cancer Using Dynamic Thermal Imaging

    Published on: May 5, 2011

    17.2K
    In Situ Surface Temperature Measurement in a Conveyor Belt Furnace via Inline Infrared Thermography
    07:03

    In Situ Surface Temperature Measurement in a Conveyor Belt Furnace via Inline Infrared Thermography

    Published on: May 30, 2020

    4.8K

    Related Experiment Videos

    Last Updated: Feb 11, 2026

    Diffuse Reflectance Infrared Spectroscopic Identification of Dispersant/Particle Bonding Mechanisms in Functional Inks
    10:31

    Diffuse Reflectance Infrared Spectroscopic Identification of Dispersant/Particle Bonding Mechanisms in Functional Inks

    Published on: May 8, 2015

    14.2K
    Quantitative Visualization and Detection of Skin Cancer Using Dynamic Thermal Imaging
    06:08

    Quantitative Visualization and Detection of Skin Cancer Using Dynamic Thermal Imaging

    Published on: May 5, 2011

    17.2K
    In Situ Surface Temperature Measurement in a Conveyor Belt Furnace via Inline Infrared Thermography
    07:03

    In Situ Surface Temperature Measurement in a Conveyor Belt Furnace via Inline Infrared Thermography

    Published on: May 30, 2020

    4.8K
  • Employed a high-emissivity tape as a thermal emission reference for the metal sphere.

    • Main Results:

    • The reflective all-sky imager successfully measured sky radiance in the 8-14 μm range.
    • Geometric distortion was effectively removed, enabling accurate spatial measurements.
    • Measurements agreed within 0.91 W/(m2 sr) with a calibrated lens-based imager after bias removal.

    Conclusions:

    • The developed reflective all-sky imaging system is a viable tool for cloud property assessment.
    • The system's compact design and accuracy support its application in Earth-space optical communications.
    • Further study on system bias is ongoing to enhance measurement precision.