OPHTHALMIC FILTER

• Main Authors: THIERRY PIERRE VILLETTE, CONTE DOMINIQUE, SERGE PICAUD, JOSE-ALAIN SAHEL, EMILIE ARNAULT, CORALIE BARRAU, DENIS COHEN-TANNOUDJI, CHRISTOPHE PLESSIS
• Format: Patent
• Language: English; Japanese
• Published: 24.12.2020
• Subjects: CONTACT LENSES; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICS; PHYSICS; SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURESAS SPECTACLES

To provide an optical device comprising an optical substrate provided with selective optical filtering means configured to selectively inhibit transmission of light in the visible light spectrum at an inhibition rate of at least 5%.SOLUTION: An optical device is provided, comprising an optical substrate provided with selective optical filtering means configured to selectively inhibit transmission, through the optical substrate, of at least one selected range of wavelengths of incident light in the visible light spectrum at an inhibition rate of at least 5%, the selective optical filtering means being further configured to transmit at least 8% of incident light of the visible spectrum outside the at least one selected range of wavelengths, where the at least one selected range of wavelengths has a bandwidth in a range of 10 to 70 nm, preferably 10 to 60 nm, centered about a wavelength within a range of 430 to 465 nm.SELECTED DRAWING: Figure 1A 【課題】可視光スペクトル内における、少なくとも５％の阻止率において選択的に阻止するように構成された選択的光学フィルタリング手段が設けられた光学基板を含む光デバイスを提供する。【解決手段】可視光スペクトル内における、入射光の少なくとも１つの選択波長範囲が光学基板を透過することを少なくとも５％の阻止率において選択的に阻止するように構成された選択的光学フィルタリング手段が設けられた光学基板を、含み、選択的光学フィルタリング手段が、更に、少なくとも１つの選択波長範囲の外側の可視スペクトルの入射光の少なくとも８％を透過するように構成されており、少なくとも１つの選択波長範囲が、４３０ｎｍ〜４６５ｎｍの範囲内の波長を中心とする、１０ｎｍ〜７０ｎｍ、好ましくは、１０ｎｍ〜６０ｎｍの範囲内の帯域幅を有する、光デバイス。【選択図】図１Ａ