Night Vision Technology: An Overview

Haque, Mohd Junedul; Muntjir, Mohd

doi:10.5120/ijca2017914562

Cited by 7 publications

(7 citation statements)

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“…The rst attempts to develop a technology to obtain night vision date back to the late 1920s when Holst and Hades Boer, who worked for Philips Inc., pioneered the development of an imaging device that utilized the infrared spectrum (Mahmood et al 2018). However, the earliest practical uses of NVGs emerged as military technology only during World War II, and their widespread adoption occurred during the Vietnam War (Junedul and Muntjir 2017). Intensively perfected in the following years, NVGs have been fashioned in many shapes to variously t military equipment.…”

Section: Night Visionmentioning

confidence: 99%

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Real-time identification and visualization of Egyptian blue using modified night vision goggles

Nicola,

Gobetto,

Bazzacco

et al. 2024

Preprint

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The possibility to use light in the visible spectrum to induce near-infrared luminescence in some materials, particularly Egyptian blue and related pigments, offers a significant advantage in terms of their detection. Since 2008 this property has been exploited to reveal their presence even in tiny amounts on ancient and decayed surfaces, using a technical-photography method. This paper presents a new type of imaging device that enables real-time, easy, and inexpensive identification and mapping of Egyptian blue and related materials. The potential of the new tool is demonstrated by showing its effectiveness in detecting Egyptian blue within some prestigious sites: a) Egyptian findings at Museo Egizio, Turin, b) underground Roman frescoes at Domus Aurea, Rome, and c) Renaissance frescoes by Raphael, Triumph of Galatea and Loggia of Cupid and Psyche, at Villa Farnesina, Rome. The device is based on night vision technology and allows an unprecedented fast, versatile, and user-friendly approach. It is employable by professionals including archaeologists, conservators, and conservation scientists, as well as by un-trained individuals such as students or tourists at museums and sites. The overall aim is not to replace existing photographic techniques but to develop a tool that enables rapid preliminary recognition, useful for planning the work to be carried out with conventional methods. The ability to immediately track Egyptian blue and related pigments, through real-time vision, photos, and videos, provide also a new kind of immersive experience (Blue Vision) and can foster the modern use of these materials in innovative applications and future technologies.

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Section: Night Visionmentioning

confidence: 99%

“…They were soon abandoned because the NIR illuminators were easily detected by enemies. Generations 1-3 include passive NVGs, with IITs more and more sophisticated (Chrzanowski 2015;Junedul and Muntjir 2017). At the same time, many new technologies emerged, thus improving night vision.…”

Section: Night Visionmentioning

confidence: 99%

Real-time identification and visualization of Egyptian blue using modified night vision goggles

Nicola,

Gobetto,

Bazzacco

et al. 2024

Preprint

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“…The subject of this publication will be mainly the NV monoculars based on image intensifying technology. In fact, image-enhancement systems are normally called night-vision devices (NVDs) [3].…”

Section: A Overview Of Night Vision Technologiesmentioning

confidence: 99%

“…These new electrons also collide with other atoms, creating a chain reaction that results in thousands of electrons leaving the channel where only a few entered. An interesting fact is that the micro channels in the MCP are created at a slight angle (about 5° to 8° bias) to encourage electron collisions and reduce both ion and direct-light feedback from the phosphors on the output side [3].…”

Section: B) Image Intensifier Tube (Iit)mentioning

confidence: 99%

Night Vision Monocular - Basic Elements and Development Trends

Stoychev,

Hutov

2024

ETR

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This article examines the fundamental elements and evolving trends in night vision monocular devices. The topicality of this topic lies in the ongoing advancements in sensor technologies, optics, and digital processing, which continually enhance the performance and accessibility of night vision devices. The purpose of this study is to provide a comprehensive overview of the basic components and recent developments in night vision monoculars. The study adopts a comparative analysis approach, examining the key features and functionalities of different generations of night vision technology and investigates emerging trends such as miniaturization, improved image resolution, and integration with digital interfaces. The methodology involves a thorough review of literature encompassing scientific articles, patents, and technical reports related to night vision technologies. Key aspects studied include image intensifier tubes, infrared sensors, objective lenses, and display systems. Additionally, recent research articles, technical reports, and product specifications are analyzed to identify emerging trends in monocular design and performance, in digital image processing algorithms and the integration of augmented reality functionalities. The findings underscore the importance of ongoing research and development in improving the performance and accessibility of night vision monoculars. Key conclusions include the growing role of digital imaging in night vision devices, the potential for further miniaturization of components, and the importance of optimizing cost-efficiency without compromising performance. In summary, this article provides insights into the foundational components and evolving trends of night vision monoculars, emphasizing the technological advancements driving the development of next-generation night vision devices. The findings contribute to a deeper understanding of the current state and future prospects of night vision technology.

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“…Thanks to the spectroscopic detection of such absorption lines, this spectral range has enormous potential for studying complex biological systems or atmospheric pollution 4,5 . Another possibility is to use these wavelengths for technological applications e.g., processing of plastics 6 and glass materials, for direct communication through free space 7 or for night vision in military systems 8 . *adam.riha@fjfi.cvut.cz; phone: 00 420 224 358 034 Over the past two decades basically two types of mid-IR coherent light generation -indirect and direct were developed.…”

Section: Introductionmentioning

confidence: 99%

The influence of Cr2+ to Fe2+ ions concentration ratio on the Cr,Fe:Zn(1-x)Mn(x)Se (x ≈ 0.15) laser properties excited via Cr2+ → Fe2+ energy transfer

Říha¹,

Jelı́nková²,

Doroshenko³

et al. 2023

Solid State Lasers XXXII: Technology and Devices

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In this work the results of research of an optimal concentration ratio of Cr 2+ and Fe 2+ co-doped active ions for more efficient Cr 2+ → Fe 2+ ions energy transfer in a chosen Zn1-xMnxSe (x ≈ 0.15) host material are presented. Three cryogenically cooled Cr 2+ ,Fe 2+ :Zn1-xMnxSe (x ≈ 0.15) single crystals with the same thickness of ~2.7 mm and with different doping ratios of Cr 2+ and Fe 2+ ions of ~1:1, ~2:1, and ∼3:1 were investigated under Q-switched Er:YLF laser excitation (wavelength: ∼1.73 µm, pulse energy: ∼10 mJ, pulse duration: ∼150 ns). The temperature dependence of the absorption and fluorescence spectra, the fluorescence decay time as well as the laser output characteristics were measured. The Fe 2+ ions maximum laser output of ~50 µJ at the wavelength range of ~4.25-4.42 µm was obtained with the crystal sample for which the active ions ratio was ~2:1. A further increase of the chromium ions amount (Cr 2+ :Fe 2+ ≈ 3:1) led to worse results. Using appropriate resonator cavity mirrors, the samples were also able to generate the ~2.35-2.45 µm laser radiation from Cr 2+ ions. The laser output beam spatial profiles were close to Gaussian in all cases. In summary, an optimized compact source of mid-infrared ~4.25-4.42 µm (Fe 2+ ) and ~2.35-2.45 µm (Cr 2+ ) of Cr,Fe:Zn1-xMnxSe (x ≈ 0.15) crystal pumped via Cr 2+ ions by the ~1.73 µm radiation is described.

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Night Vision Technology: An Overview

Cited by 7 publications

References 0 publications

Real-time identification and visualization of Egyptian blue using modified night vision goggles

Real-time identification and visualization of Egyptian blue using modified night vision goggles

Night Vision Monocular - Basic Elements and Development Trends

The influence of Cr2+ to Fe2+ ions concentration ratio on the Cr,Fe:Zn(1-x)Mn(x)Se (x ≈ 0.15) laser properties excited via Cr2+ → Fe2+ energy transfer

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