Profile and roughness of electrorheological finishing optical surfaces
Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review
Author(s)
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Detail(s)
Original language | English |
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Pages (from-to) | 306-313 |
Journal / Publication | Frontiers of Optoelectronics |
Volume | 8 |
Issue number | 3 |
Publication status | Published - 29 Sep 2015 |
Link(s)
Abstract
This paper focuses on the process of electrorheological (ER) finishing optical surfaces. Experiments on K9 mirrors were conducted. In one experiment, the operating distance was varied over 0.5–0.8 mm with the voltage at 2000 V. The maximum peak-to-valley (PV) reduction was obtained at the distance of 0.5 mm, where the PV value was reduced from 58.71 to 25.03 nm. In another experiment, the voltage was varied over 1500–3000 V with operating distance at 0.5 mm. The final surface roughness (Ra) achieved was as low as 2.5 nm. A higher voltage produced a higher relative reduction of the Ra. These experimental results validated the process.
Research Area(s)
- electrorheological (ER), finishing, surface roughness
Citation Format(s)
Profile and roughness of electrorheological finishing optical surfaces. / Cheng, Haobo; Su, Jingshi; Chen, Yong; Tam, Hon-Yuen.
In: Frontiers of Optoelectronics, Vol. 8, No. 3, 29.09.2015, p. 306-313.Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review