公开(公告)号：US20210124217A1

公开(公告)日：2021-04-29

申请号：US17131213

申请日：2020-12-22

Applicant: LMS Co., Ltd.

Inventor： Yong Won CHOI ,  Ho Seong NA ,  Min Soo LEE ,  Woo Joo LAH

IPC: G02F1/1335 ,  G02F1/13357

Abstract: An optical film for transmitting light emitted from a mini or micro light-emitting diode comprises a first diffusion sheet allowing the light to be emitted at one surface thereof, having, on the one surface thereof, a bead diffusion layer, which includes beads for the diffusion of the light, and having, on the other surface thereof, a pattern diffusion layer which includes a pattern for the diffusion of the light; and a first prism sheet having a plurality of prisms arranged on one surface thereof in a predetermined direction in order to concentrate the light that has passed through the first diffusion sheet, wherein the bead diffusion layer and the pattern diffusion layer of the first diffusion sheet can be formed such that a first diffusion rate of the light on the one surface of the first diffusion sheet is higher than a second diffusion rate of the light on the other surface of the first diffusion sheet.

公开(公告)号：US20160259103A1

公开(公告)日：2016-09-08

申请号：US14917018

申请日：2014-08-30

Applicant: LMS CO.,LTD

Inventor： Joo Young KIM ,  Seon Ho YANG ,  Hong Seok CHIN ,  Min Soo LEE

IPC: G02B5/28 ,  G02B5/22

Abstract: An optical filter comprising a light absorption layer and a near-infrared reflection layer, and an imaging device comprising the optical filter are provided. Wherein the light absorption layer has an absorption maximum in a wavelength range of 670 to 720 nm, a wavelength at which the near-infrared reflection layer has a light transmittance of 50% is in a range of 690 to 720 nm, and the optical filter satisfies the following Mathematical Formula 1: ΔE*≦1.5  [Mathematical Formula 1] wherein the ΔE* value represents a color difference between light that is incident in a vertical direction of the optical filter and passes through the optical filter and light that is incident at an angle of 30° with respect to the vertical direction of the optical filter and passes through the optical filter.

Abstract translation: 提供了一种包括光吸收层和近红外反射层的滤光器，以及包括该滤光器的成像装置。 其中，光吸收层在670〜720nm的波长范围内具有吸收最大值，近红外反射层的透光率为50％的波长在690〜720nm的范围内，滤光器 满足以下数学公式1：ΔE*≤1.5[数学式1]其中ΔE*值表示入射到滤光器的垂直方向上并通过滤光器的光和入射到滤光器的光之间的色差 相对于滤光器的垂直方向为30°的角度并通过滤光器。

公开(公告)号：US20200241185A1

公开(公告)日：2020-07-30

申请号：US16651789

申请日：2018-09-21

Applicant: LMS Co., Ltd.

Inventor： Jeong Og CHOI ,  Joo Young KIM ,  Seon Ho YANG ,  Min Soo LEE ,  Yong Won CHOI

IPC: G02B5/22 ,  G02B5/20 ,  C08K5/3417 ,  C09B57/00 ,  G03B11/00

Abstract: The present invention relates to an optical article, and an optical filter and an imaging device including the same. The optical article comprises: a near-infrared absorption glass substrate including a divalent copper ion as a chromatic ingredient; and a pigment dispersion layer formed on one surface or both surfaces of the near-infrared absorption glass substrate and having a near-infrared absorption pigment and an ultraviolet absorption pigment dispersed across the resin matrix thereof. Provided with a first and a second transmission cut-off region, the optical article has the advantage of allowing the fabrication of an excellent near-infrared cut-off filter that can effectively block light in near-infrared and ultraviolet bands and does not permit a difference in color sense with the change of incident angles.