公开(公告)号：US20250044484A1

公开(公告)日：2025-02-06

申请号：US18533240

申请日：2023-12-08

Applicant: Changzhou AAC Raytech Optronics Co., Ltd.

Inventor： Siyuan Jiang

IPC: G02B3/02 ,  G02B1/08

Abstract: The present disclosure relates to the technical field of optical lens and discloses an optical system including, from an anterior side to a posterior side: an image surface, having a circular polarizer attached to a posterior side of the image surface to emit light; a first lens, provided with some reflective elements on an anterior-side surface and a lamination film on a posterior-side surface of the first lens, the lamination film comprising a reflective polarizing film and a quarter waveplate, and the reflective polarizing film provided at a posterior side of the quarter waveplate; and an aperture, located at the posterior side of the optical system; and the optical system further satisfying following conditions: VD≥6 mm; SDmax≤21.2 mm; and 0.71≤d4/TTL≤0.85. The optical system has good optical functions while satisfying a desire of design in a small size and a light weight.

公开(公告)号：US20240337821A1

公开(公告)日：2024-10-10

申请号：US18533202

申请日：2023-12-08

Applicant: Changzhou AAC Raytech Optronics Co., Ltd.

Inventor： Siyuan Jiang

IPC: G02B13/18 ,  G06F1/16

CPC classification number: G02B13/18 ,  G06F1/163

Abstract: The present disclosure discloses an optical module and a VR device. The optical module includes, from an image side to an object side, a first lens, a second lens and a third lens; a lamination film is attached on an image-side surface of the first lens, the lamination film comprising, from the image side to the object side, a reflective polarizing film and a quarter waveplate film; and the optical module further satisfying following conditions: 1.00≤f23/f≤1.50; MAX SD≤27.00 mm; and Eyebox≥12.00*12.00 mm. The present disclosure not only solves the existing problem of small Eyebox, small FOV, the inability to achieve adjustable diopter, or the ability to achieve adjustable diopter but an adjustment structure being complex and a range of diopter adjustment being small, but also satisfies a use requirement for miniaturization and light weight of an optical module in a VR device.