| 摘要 |
The present invention relates to a deployable optical structure for space having high precision focus mechanism. The deployable optical structure comprises a first barrel having a first mirror; a second barrel having a second mirror and coupled to the inside of the first barrel to be movable; a first deployment unit installed outside the first barrel to transfer the second barrel; and a second deployment unit arranged inside the second barrel to transfer the second mirror. The present invention can be easily loaded in a narrow satellite by receiving the separated second barrel in the first barrel, can obtain a high resolution video image by extending the whole length of the barrels by deploying the second barrel using the first deployment unit, and can maintain 10-20% higher heat deformation of the separable barrels than an existing integrated barrel. Also, the present invention can be driven with less power using a ceramic ball screw and can allow superprecise transfer. |
