• Ashwinkumar V Patel

High resolution space telescopes need large primary mirror. In order to limit weight of this mirror, light weighting is done which will generate gravity and thermo-elastic deformations. These deformations along with alignment errors and mirror fabrication induced errors will result in addition of aberrations in optical wavefront compromising optical image quality. This aberrated wavefront will be corrected by deformable mirror whose shape is adjusted to compensate for aberrations.Optical wavefront. Deformable mirrors (DM) are mirrors with a deformable surface that can be used for wavefront control and optical aberration correction. Adaptive optics use deformable mirrors along with wavefront sensors and real-time control systems. Mirror will be deformed by applying forces away from active surface. This will limit generation of higher order optical aberrations. Thus, the major objective would be to design a deformable mirror that would correct optical wavefront aberrations for a high radial order by using a suitable actuation method. This paper presents a review of deformable mirrors and their different types of mirrors working on different principle and present advantages and test setup with reference to opto-mechanical devices

Opto-mechanical, Wavefront Correction, Deformable Mirror, Actuator

"A Literature Review on the Applications of Deformable Mirror", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.5, Issue 10, page no.905-913, October-2018, Available :http://www.jetir.org/papers/JETIR1810B75.pdf

"A Literature Review on the Applications of Deformable Mirror", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.5, Issue 10, page no. pp905-913, October-2018, Available at : http://www.jetir.org/papers/JETIR1810B75.pdf