NEAR-INFRARED ABSORPTION PLATE AND OPTICAL DEVICE INCLUDING THE SAME

To prevent visible light transmissivity and near-infrared light absorptivity from decreasing owing to interaction among a plurality of organic substances forming a light absorption layer.SOLUTION: There is provided a near-infrared absorption plate including: a glass plate 100; a first light absorption layer 200 which has a maximum absorption wavelength within a range of 850-1,200 nm; and a second light absorption layer 300 which is separate from the first light absorption layer and has a maximum absorption wavelength within a range of 650-750 nm, a haze being 0.3% or less.EFFECT: The near-infrared absorption plate can be made thin, and has superior mechanical properties such as strength or heat resistance etc.SELECTED DRAWING: Figure 3 【課題】光吸収層を構成する複数の有機物間の相互作用による可視光透過率および近赤外線吸収率の低下を防止する。【解決手段】ガラス基板１００と、最大吸収波長が８５０ｎｍ以上１，２００ｎｍ以下の範囲内である第１光吸収層２００と、前記第１光吸収層から分離して存在しつつ、最大吸収波長が６５０ｎｍ以上７５０ｎｍ以下の範囲内である第２光吸収層３００と、を含み、ヘーズが０．３％以下である、近赤外線吸収板。【効果】薄型化が可能で強度または耐熱性等の機械的物性に優れている。【選択図】図３