title: Obscura telescope with a MEMS micromirror array for space observation of transient luminous phenomena or fast-moving objects.
abstract: We introduce a novel telescope consisting of a pinhole-like camera with rotatable MEMS micromirrors substituting for pinholes. The design is ideal for observations of transient luminous phenomena or fast-moving objects, such as upper atmospheric lightning and bright gamma ray bursts. The advantage of the MEMS "obscura telescope" over conventional cameras is that it is capable both of searching for events over a wide field of view, and fast zooming to allow detailed investigation of the structure of events. It is also able to track the triggering object to investigate its space-time development, and to center the interesting portion of the image on the photodetector array. We present the proposed system and the test results for the MEMS obscura telescope which has a field of view of 11.3 degrees, sixteen times zoom-in and tracking within 1 ms.
authors.affiliation: Research Center of MEMS Space Telescope and Department of Physics, Ewha Womans University, 11-1 Daehyun-dong, Seoul 120-750, Korea.
authors.forename: J H
authors.initials: JH
authors.lastname: Park
authors.forename: G K
authors.initials: GK
authors.lastname: Garipov
authors.forename: J A
authors.initials: JA
authors.lastname: Jeon
authors.forename: B A
authors.initials: BA
authors.lastname: Khrenov
authors.forename: J E
authors.initials: JE
authors.lastname: Kim
authors.forename: M
authors.initials: M
authors.lastname: Kim
authors.forename: Y K
authors.initials: YK
authors.lastname: Kim
authors.forename: C-H
authors.initials: CH
authors.lastname: Lee
authors.forename: J
authors.initials: J
authors.lastname: Lee
authors.forename: G W
authors.initials: GW
authors.lastname: Na
authors.forename: S
authors.initials: S
authors.lastname: Nam
authors.forename: I H
authors.initials: IH
authors.lastname: Park
authors.forename: Y-S
authors.initials: YS
authors.lastname: Park
mesh_terms: D055587:Astronomical Objects; D001256:Astronomy / Q000295:instrumentation* / Q000379:methods; D004867:Equipment Design; D019544:Equipment Failure Analysis; D007089:Image Enhancement / Q000295:instrumentation* / Q000379:methods; D007909:Lenses; D055617:Micro-Electrical-Mechanical Systems / Q000295:instrumentation*; D055096:Optical Devices; D010783:Photometry / Q000295:instrumentation* / Q000379:methods; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity