Spacecraft lighting systems

Wheelwright, Charles D.; Toole, Jennifer R.

doi:10.1109/ias.1992.244541

Cited by 2 publications

(2 citation statements)

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“…Good lighting can enable astronauts to see the target, move safely and freely in the cabin, and enable them to effectively, accurately, and safely complete visual work without causing undue visual fatigue and other discomfort, thereby ensuring the success of the mission. From the engineering perspective, the lighting in manned missions includes interior lighting and exterior lighting [1]. Inside the cabin, the climatic environment is close to an atmospheric environment with atmospheric pressure, while there is a vacuum environment outside the cabin.…”

Section: Introductionmentioning

confidence: 99%

Effects and Challenges of Operational Lighting Illuminance in Spacecraft on Human Visual Acuity

Jiang

Schlacht³

et al. 2021

Lecture Notes in Networks and Systems

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For large-scale manned spacecraft bound for the Moon and Mars, lighting should be explored that can reduce safety risks while increasing visual capability. The use of ap-propriate lighting in large-scale manned spacecraft can provide astronauts with a comfortable and safe living and working environment while reducing the energy consumption of the lighting equipment. Visual acuity is an important aspect of the quality of the light environment. It directly determines the human eye's ability to discern details and has an important impact on visual ergonomics and the efficiency of receiving visual information. In this study, we investigated changes in the human eye's visual acuity in a simulated spacecraft environment under three illuminances. 18 healthy persons participated in the study and tested binocular vision under three illuminance light environments. The results show that the amount of change in visual acuity decreased as the il-luminance value increased, the rate of decrease gradually slowed down and eventually tended to be flat. We found that with 200 lx as the dividing line, increasing the illuminance value at low illuminance can significantly improve visual acuity.

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Section: Introductionmentioning

confidence: 99%

Effects and Challenges of Operational Lighting Illuminance in Spacecraft on Human Visual Acuity

Jiang

Schlacht³

et al. 2021

Lecture Notes in Networks and Systems

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“…Compared with earth, Mars has lower surface temperatures, much lower atmospheric absorption and radiation, and higher surface emissivity (Ho et al, 2012). We made the assumption that in Case 1 the light source for the interior Quatrefoil space of the spacecraft originated from outside of the spacecraft thus from the Martian atmosphere (Wheelwright and Toole, 1992). Mars has a large surface emissivity due to the land surfaces having lower dielectric constants.…”

Section: Introductionmentioning

confidence: 99%

Numerical solutions of the radiosity equation for a spherical quatrefoil on Mars

Warnapala¹,

Ngo²

2017

Afr. J. Math. Comput. Sci. Res.

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The Galerkin method is used to numerically solve the exterior boundary value problem for the radiosity equation for the spherical quatrefoil. The radiosity equation is a mathematical model for the brightness of a collection of one or more surfaces when their reflectivity and emissivity are given. On planet Mars the surface emissivity is closely related to its surface temperature. The radiosity of a surface is the rate at which the energy leaves that surface; it includes the energy emitted by a surface as well as the energy reflected from other surfaces.

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Spacecraft lighting systems

Cited by 2 publications

References 1 publication

Effects and Challenges of Operational Lighting Illuminance in Spacecraft on Human Visual Acuity

Effects and Challenges of Operational Lighting Illuminance in Spacecraft on Human Visual Acuity

Numerical solutions of the radiosity equation for a spherical quatrefoil on Mars

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