1.

Conference Proceedings
Conference Proceedings
1. Analysis of errors and calibration method for manufacturing multilevel diffractive optical element by ion etching
Fu,Y. ; Lu,Z. ; Ma,Y. ; Weng,Z.
Pub. info.: Current developments in optical elements and manufacturing : 16-18 September 1998, Beijing, China.  pp.181-184,  1998.  Bellingham, Wash., USA.  SPIE-The International Society for Optical Engineering
Title of ser.: Proceedings of SPIE - the International Society for Optical Engineering
Ser. no.: 3557
2.

Conference Proceedings
Conference Proceedings
2. Lens centering by using binary phase grating
Lu,Z. ; Weng,Z.
Pub. info.: Current developments in lens design and optical systems engineering : 2-4 August 2000, San Diego, USA.  pp.176-180,  2000.  Bellingham, Wash., USA.  SPIE-The International Society for Optical Engineering
Title of ser.: Proceedings of SPIE - the International Society for Optical Engineering
Ser. no.: 4093