SPECTACLE LENS COMPRISING ACTIVATABLE OPTICAL FILTER, AND OPTICAL DEVICE COMPRISING SUCH SPECTACLE LENS

• Main Authors: WILLY CHAUDAT, DAVID ESCAICH, JEAN-PAUL CANO, SAMUEL ARCHAMBEAU, JEROME BALLET, LOIC QUERE
• Format: Patent
• Language: English; Japanese
• Published: 20.10.2023
• Subjects: CONTACT LENSES; DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL LOGIC ELEMENTS; OPTICS; PHYSICS; SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURESAS SPECTACLES; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF

To provide a spectacle lens comprising an improved activatable optical filter.SOLUTION: The present invention relates to a spectacle lens comprising an activatable optical filter having at least an electrochromic device and being configured to be actively switched between at least three configurations, where the activatable optical filter is uniform in a first configuration and the activatable optical filter selectively attenuates light from a localized light source in a second configuration, while the activatable optical filter is uniform in a third configuration. A difference in chromaticity Δchrom between the configurations is smaller than or equal to 20.SELECTED DRAWING: Figure 1 【課題】改良された活性化可能光学フィルタを含む眼鏡レンズを提供する。【解決手段】本発明は、少なくともエレクトロクロミック素子を含むと共に少なくとも３種類の構成間で能動的に切り替え可能に構成されている活性化可能光学フィルタを含む眼鏡レンズに関し、－第１の構成において、活性化可能光学フィルタは均一であり、－第２の構成において、活性化可能光学フィルタは局所光源からの光を選択的に減衰させ、－第３の構成において、活性化可能光学フィルタは均一であり、－各構成間の色度差ΔＣｈｒｏｍは２０以下である。【選択図】図１