Invention Grant
- Patent Title: Spectacle lens having a plurality of diffraction structures for light
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Application No.: US15359476Application Date: 2016-11-22
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Publication No.: US10025115B2Publication Date: 2018-07-17
- Inventor: Rainer Sessner , Joerg Petschulat , Katharina Rifai , Peter Klopfleisch , Matthias Burkhardt , Peter Pacher , Timo Kratzer , Herbert Krug
- Applicant: Carl Zeiss International GmbH , Carl Zeiss AG , Carl Zeiss Jena GmbH
- Applicant Address: DE Aalen DE Oberkochen DE Jena
- Assignee: Carl Zeiss Vision International GmbH,Carl Zeiss AG,Carl Zeiss Jena GmbH
- Current Assignee: Carl Zeiss Vision International GmbH,Carl Zeiss AG,Carl Zeiss Jena GmbH
- Current Assignee Address: DE Aalen DE Oberkochen DE Jena
- Agency: Walter Ottesen, P.A.
- Priority: DE102014209792 20140522
- Main IPC: G02C7/00
- IPC: G02C7/00 ; G02C7/02 ; G02C7/06 ; B29D11/00 ; G02B5/32 ; G02B27/42

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
- US20170075139A1 SPECTACLE LENS HAVING A PLURALITY OF DIFFRACTION STRUCTURES FOR LIGHT Public/Granted day:2017-03-16
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