Invention Application
- Patent Title: SPECTACLE LENS HAVING A PLURALITY OF DIFFRACTION STRUCTURES FOR LIGHT
- Patent Title (中): 具有多种衍射结构的光束透镜
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Application No.: US15359476Application Date: 2016-11-22
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Publication No.: US20170075139A1Publication Date: 2017-03-16
- Inventor: Rainer Sessner , Joerg Petschulat , Katharina Havermann , Peter Klopfleisch , Matthias Burkhardt , Peter Pacher , Timo Kratzer , Herbert Krug
- Applicant: Carl Zeiss International GmbH , Carl Zeiss AG , Carl Zeiss Jena GmbH
- Priority: DE102014209792.4 20140522
- Main IPC: G02C7/06
- IPC: G02C7/06 ; B29D11/00 ; G02B5/32 ; G02B27/42 ; G02C7/02

Abstract:
The invention is directed to a spectacle lens and includes a body which is transparent or at least partly transparent to light and has a phase object which guides the light incident at an angle of incidence α on a side facing away from an observer into a direction depending on the wavelength λ of the light and the angle of incidence α thereof. The phase object has a multiplicity of diffraction structures, which diffract monochromatic light at a wavelength of 380 nm≦λ≦800 nm with a diffraction efficiency of η≧70% into one and same order of diffraction |m|≧1 when the monochromatic light is incident at an angle of incidence α on the side of the lens facing away from the observer which lies within a diffraction-structure-specific angle interval 15° wide and dependent on the wavelength of the light.
Public/Granted literature
- US10025115B2 Spectacle lens having a plurality of diffraction structures for light Public/Granted day:2018-07-17
Information query