A compact grating replacement device
A compact, grating technology, applied in measuring devices, optical radiation measurement, spectrometry/spectrophotometry/monochromator, etc., can solve the problems of large diameter of turntable plane, low space efficiency, and large instrument space, etc. Achieve the effect of high positioning accuracy, convenient operation and simple structure
Active Publication Date: 2017-03-01
山东百茂生物科技有限公司
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Problems solved by technology
The space efficiency of the linear rail grating replacement system is low, the length is too long, and 50% of the guide rails are idle; the rotary table grating replacement system symmetrically arranges the light splitting devices of all imaging modes on the same turntable plane, so that the diameter of the turntable plane Larger, occupying a larger space of the instrument, resulting in interference with the optical path, other structures and components of the instrument
Method used
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Embodiment Construction
[0015] see figure 1 and figure 2 , the compact grating replacement device includes a turntable 10, a rotary drive device 20 and a grating component 30 vertically arranged on the turntable, the rotary drive device 20 can drive the turntable 10 to rotate in the horizontal direction, and the rotary drive device 20 includes a motor 21 and an air bearing shaft Part 22, the air bearing shaft part 22 is arranged between the motor 21 and the turntable 10, and also includes a mirror 40 and a mirror rotating mechanism 50, and the mirror 40 is rotatably arranged above the grating part 30 in parallel through the mirror rotating mechanism 50 , the grating component 30 includes a first grating part 31, a second grating part 32 and a third grating part 33, and the mirror 40 can selectively rotate and cover the first grating part 31 or the second grating part 32 through a mirror rotating mechanism 50 Or directly above the third grating portion 33 .
[0016] see figure 1 and figure 2 , t...
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The invention discloses a compact type raster replacement device. The compact type raster replacement device enables a reflector to selectively rotate and cover right above one of a plurality of raster parts under the driving of a reflector rotation mechanism through arranging a rotation table and arranging a plurality of raster parts with various spectral resolutions on a rotation table and through a rotation driving device driving a rotation table to rotate in a horizontal direction and arranging the reflector and a reflector rotation mechanism on the rotation table. As a result, the compact type raster replacement device realizes the switching among the plurality of modes of spectral imaging. The compact type raster replacement device is simple in structure and easy in operation. Because a plurality of raster parts adopt raster fixing parts in the same size, the compact type raster replacement device has an advantage of compact structure. The compact type raster replacement device adopts an air-floating shaft member as the rotation shaft of the rotation table, which is high in positioning accuracy and satisfies the requirement of the optical spectrometer for precision.
Description
technical field [0001] The invention relates to an optical device, in particular to a compact grating replacement device. Background technique [0002] Gratings are the core components of grating spectrometers equipped with astronomical telescopes. Astronomical telescopes often need to use gratings of different resolutions to achieve high, medium, and low spectral resolution imaging and full-spectrum imaging when observing the sky, and to achieve different research goals. The traditional grating replacement system mainly has two types: linear guide type and rotary table type. The space efficiency of the linear rail grating replacement system is low, the length is too long, and 50% of the guide rails are idle; the rotary table grating replacement system symmetrically arranges the light splitting devices of all imaging modes on the same turntable plane, so that the diameter of the turntable plane Larger, occupying a larger space of the instrument, resulting in interference w...
Claims
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IPC IPC(8): G01J3/02
Inventor 张建寰陶金张陈涛陈永庆俞凯翔刘岩
Owner 山东百茂生物科技有限公司