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High resolution imaging self-adaptive optical telescope suitable for working at daytime

An adaptive optics and high-resolution technology, applied in the field of telescopes, can solve the problem that adaptive optics telescopes cannot work during the day, so as to overcome the relatively strong influence of strong background light and atmospheric turbulence during the day, weaken the influence, and improve detection accuracy Effect

Inactive Publication Date: 2007-02-07
INST OF OPTICS & ELECTRONICS - CHINESE ACAD OF SCI
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Problems solved by technology

[0003] The technical problem solved by the present invention is: to overcome the problem that the existing adaptive optics telescope cannot work in the daytime, and to provide a high-resolution imaging adaptive optics telescope suitable for daytime work, which has a weak target signal wavefront under the background of strong skylight in the daytime Capabilities for detection and high-resolution imaging

Method used

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  • High resolution imaging self-adaptive optical telescope suitable for working at daytime
  • High resolution imaging self-adaptive optical telescope suitable for working at daytime
  • High resolution imaging self-adaptive optical telescope suitable for working at daytime

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Embodiment Construction

[0012] Such as figure 1 As shown, the present invention is made up of telescope system 24, precise tracking system 25, adaptive optics system 27 and imaging system 19, and telescope system 24 is made up of primary mirror 1, secondary mirror 2, reflecting mirror 3; Precision tracking system 25 is made up of a loop It consists of large-stroke high-speed tilting mirror 4, mirrors 5 and 6, beam splitter 7, tracking objective lens 26, fine tracking detector EMCCD detector 22 and fine tracking processor 23, and is used to correct the residual error of the coarse tracking loop of the telescope. Wherein the precise tracking detection system composed of the tracking objective lens 26 and the fine tracking detector EMCCD detector 22 is located in the library; the light from the target reaches the high-speed tilting mirror 4 through the primary mirror 1, the secondary mirror 2 and the reflecting mirror 3 After that, it enters the Kude room through the reflector 6, and the light part ente...

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Abstract

The high-resolution adaptive imaging optical telescope comprises: a telescope system, a precise track system with EMCCD (reading noise < 1e-) as the core detective member, an adaptive optical system, and an imaging system, wherein the precise track and detection system is arranged in Kuder room to keep all of the track system and track loop and high-order error correction loop on one OA; the Hartmann sensor works on near-IR range to reduce background effect, and the near-IR detector in imaging system can overcome effect from strong back light and air turbulence to improve imaging resolution.

Description

technical field [0001] The invention relates to a telescope, in particular to a high-resolution imaging adaptive optics telescope suitable for daytime work. Background technique [0002] Adaptive optics is a system that detects and corrects random optical wavefront aberrations in real time. Conventional adaptive optics telescopes work in the visible light range. On page 943 of SPIE published in 2004, the working band of the fine tracking circuit of the Yunnan Astronomical Observatory 1.2m Adaptive Optics Telescope is 0.4um-0.43um, and the working band of the high-precision tracking circuit and high-order error correction circuit is 0.43um-0.7 um, the working band of the imaging system is 0.7um-1.0um. Due to the high intensity of the sky background in the visible light band, this adaptive optics telescope does not have the ability to work during the day; at the same time, the precision tracking system is located at the bottom of the telescope barrel, and the high-order erro...

Claims

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Application Information

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IPC IPC(8): G02B23/00H01L27/148
Inventor 饶长辉吴碧琳
Owner INST OF OPTICS & ELECTRONICS - CHINESE ACAD OF SCI
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