scholarly journals Accurate calibration of geometrical error in reflective surface testing based on reverse Hartmann test

2018 ◽  
Vol 26 (7) ◽  
pp. 8113 ◽  
Author(s):  
Daodang Wang ◽  
Zhidong Gong ◽  
Ping Xu ◽  
Chao Wang ◽  
Rongguang Liang ◽  
...  
Keyword(s):  
Geometrical Error ◽  
Reflective Surface ◽  
Hartmann Test ◽  
Surface Testing

scholarly journals Geometrical error calibration in reflective surface testing based on reverse Hartmann test

2017 ◽  
Author(s):  
Daodang Wang ◽  
Zhidong Gong ◽  
Ping Xu ◽  
Rongguang Liang ◽  
Ming Kong ◽  
...  
Keyword(s):  
Geometrical Error ◽  
Reflective Surface ◽  
Error Calibration ◽  
Hartmann Test ◽  
Surface Testing

scholarly journals Computer-aided high-accuracy testing of reflective surface with reverse Hartmann test

2016 ◽  
Vol 24 (17) ◽  
pp. 19671 ◽  
Author(s):  
Daodang Wang ◽  
Sen Zhang ◽  
Rengmao Wu ◽  
Chih Yu Huang ◽  
Hsiang-Nan Cheng ◽  
...  
Keyword(s):  
High Accuracy ◽  
Reflective Surface ◽  
Computer Aided ◽  
Hartmann Test

Detection of reflective surface defects based on phase measuring deflectometry

2020 ◽  
Vol 35 (12) ◽  
pp. 1315-1322
Author(s):  
Qian TAO ◽  
◽  
Zhi-feng ZHOU ◽  
Ming-hui WU ◽  
Li-rui WANG
Keyword(s):  
Surface Defects ◽  
Reflective Surface

Where did the Mirror Go? The Text of Plato [?] Alcibiades I 133c1-6

Elenchos ◽  
2015 ◽  
Vol 36 (2) ◽  
pp. 361-372 ◽  
Author(s):  
Harold Tarrant
Keyword(s):  
Late Antiquity ◽  
Single Letter ◽  
Reflective Surface ◽  
True Meaning ◽  
Intertextual Allusion

AbstractAt Alcibiades I, 133b-c, the reader expects, but does not according to the MSS find, the return of the mirror-motif that had supposedly explained the true meaning of the Delphic injunction. Hence it remains unclear why anything viewed within the soul should act in any way that resembles a mirror. I argue that the substitution of a single letter in one word, about which the manuscripts and modern scholars in any case disagree, can restore the necessary reference to a reflective surface, though not specifically to a mirror, since the term for a mirror could only be applied to sight. A failure to understand the underlying intertextual allusion to Cratylus 408c had resulted in a safe but unsatisfactory substitution by Late Antiquity, and other modifications followed thereafter in an effort to give meaning to the text.

Analysis of radiation of antennas with a phase‐gradient partially reflective surface

2015 ◽  
Vol 9 (12) ◽  
pp. 1323-1330
Author(s):  
Hamid Moghadas ◽  
Mojgan Daneshmand ◽  
Pedram Mousavi
Keyword(s):  
Phase Gradient ◽  
Reflective Surface
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