|국가/구분||United States(US) Patent 등록|
|국제특허분류(IPC7판)||G02B-005/28 G02B-005/20 G02B-005/22|
|우선권정보||KR-10-2013-0107119 (2013-09-06); KR-10-2013-0140098 (2013-11-18)|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 0 인용 특허 : 0|
An optical filter satisfying Mathematical Formula 1 and an imaging device comprising the filter are provided. ΔE*≤1.5. Mathematical Formula 1 In Mathematical Formula 1, ΔE* represents a color difference between light that has entered in the vertical direction of the optical filter and passed through the optical filter, and light that has entered in the direction at an angle of 30° to the vertical direction of the optical filter and passed through the optical filter.
1. An optical filter for blocking near infrared, comprising: a light absorption layer having a binder resin and a light absorbing agent dispersed in the binder resin,a near infrared reflection layer formed of multilayered dielectric films that include a dispersed light absorbing agent; anda glass substrate disposed between the near infrared reflection layer and the light absorption layer and directly contacting the near infrared reflection layer and the light absorption layer,wherein the optical filter satisfies the following Mathematical Formulas 1, 2 a...