Radiant energy – Irradiation of objects or material – Ion or electron beam irradiation
Reexamination Certificate
2008-04-15
2008-04-15
Wells, Nikita (Department: 2881)
Radiant energy
Irradiation of objects or material
Ion or electron beam irradiation
C438S031000, C430S031000, 43, 43, 43
Reexamination Certificate
active
07358513
ABSTRACT:
The present invention provides for a method of producing an optical device by means of electron beam lithography and including the step of varying the characteristics of the electron beam spot during formation of the device and also an apparatus for producing diffractive optical devices and/or holographic devices by means of electron beam lithography and including an electron beam lithograph, controlling and processing means, means for varying the characteristics of the electron beam spot during formation of the device, and wherein the processing means is arranged for compiling and pre-processing data and for providing optimization and allocation control and to optical devices such as those produced thereby.
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Drinkwater Kenneth John
Matejka Frantisek
Ryzi Zbynek
Hashmi Zia R.
Optaglio Ltd.
Townsend and Townsend / and Crew LLP
Wells Nikita
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