• 专利标题:   Varifocal lens for dividing lens layer into multiple areas and applying different voltage to change focal length, comprises transparent substrate having plate shape, first lens layer stacked on first area, second lens layer stacked on second area, and formed on one surface of substrate.
  • 专利号:   US2023161218-A1, KR2023076432-A
  • 发明人:   LI C, HWANG Y, PARK S, JUN S, JUN S C, PARK S W, CHUNGYI L
  • 专利权人:   UNIV YONSEI IND ACADEMIC COOP FOUND, UNIV YONSEI IND ACADEMIC COOP FOUND
  • 国际专利分类:   G02F001/29, G02B001/02, G02B003/00, G02B003/14, G02B007/04
  • 专利详细信息:   US2023161218-A1 25 May 2023 G02F-001/29 202345 English
  • 申请详细信息:   US2023161218-A1 US058545 23 Nov 2022
  • 优先权号:   KR163352

▎ 摘  要

NOVELTY - Varifocal lens comprises a transparent substrate (100) having a plate shape, a first lens layer (210) stacked on a first area formed on one surface of the transparent substrate, a second lens layer (230) stacked on a second area, which is spaced apart from the first area and formed on the one surface of the transparent substrate, and a power supply connected to the first lens layer and the second lens layer to, based on the second lens layer, applied a first voltage to the first lens layer, where the power supply adjusts the first voltage and changes a refractive index of light, which is incident on the other surface of the transparent substrate and transmitted toward the one surface of the transparent substrate, to adjust a focal length. USE - Varifocal lens for dividing lens layer into multiple areas and applying a different voltage to each of the divided areas to change a focal length. ADVANTAGE - The varifocal lens improves the low focusing efficiency due to graphene while easily controlling a focal length using a voltage has come to the fore, and capable of forming multiple focal lengths by using a single lens, and capable of increasing a refractive index change range, and also minimizes the size. DESCRIPTION OF DRAWING(S) - The drawing shows a perspective view of a varifocal lens. 100Transparent substrate 210First lens layer 220third lens layer 230Second lens layer 240Fourth lens layer