Matches in DBpedia 2016-04 for { ?s ?p "Optothermal stability describes the rate at which an optical element distorts due to a changing thermal environment. Therefore, optothermal stability is an issue for optics that are present in a changing thermal environment. Optothermal stability is important for objects in orbit which have varying heating levels from changes in spacecraft attitude, solar flux, planetary albedo, and planetary infrared emissions. Optothermal stability is important when measuring surface figure of optics because thermal changes are typically of a low frequency nature (diurnal or HVAC cycling) which makes it difficult to use the same methods used to remove errors due to vibrational disturbances. Also, optothermal stability is important for certain optical systems such as those that use a coronagraph which requires a high level of stability."@en }
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- Optothermal_stability abstract "Optothermal stability describes the rate at which an optical element distorts due to a changing thermal environment. Therefore, optothermal stability is an issue for optics that are present in a changing thermal environment. Optothermal stability is important for objects in orbit which have varying heating levels from changes in spacecraft attitude, solar flux, planetary albedo, and planetary infrared emissions. Optothermal stability is important when measuring surface figure of optics because thermal changes are typically of a low frequency nature (diurnal or HVAC cycling) which makes it difficult to use the same methods used to remove errors due to vibrational disturbances. Also, optothermal stability is important for certain optical systems such as those that use a coronagraph which requires a high level of stability.".