WO2026026752 - OPTICAL SYSTEM AND OPTICAL DISPLAY APPARATUS
National phase entry is expected:
Publication Number
WO/2026/026752
Publication Date
05.02.2026
International Application No.
PCT/CN2025/111075
International Filing Date
29.07.2025
Title **
[English]
OPTICAL SYSTEM AND OPTICAL DISPLAY APPARATUS
[French]
SYSTÈME OPTIQUE ET APPAREIL D'AFFICHAGE OPTIQUE
[Chinese]
光学系统以及光学显示设备
Applicants **
GOERTEK OPTOELECTRONICS TECHNOLOGY (QINGDAO) CO., LTD.
Inventors
SHI, Chaiyuan
Priority Data
202411045049.9
31.07.2024
CN
Application details
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International Searching Authority |
CNIPA
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| Recordal of a Change of the Applicant's Name/Address |
Change of Applicant's Name and Address
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| Type of Assignment |
The Standard Agent's Assignment
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| Applicant's Legal Status |
Legal Entity
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| Entry into National Phase under |
Chapter I
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| Patent Delivery |
Send the Letters Patent by Courier
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Quotation for National Phase entry
| Country | Stages | Total | |
|---|---|---|---|
| China | Filing, Examination, Granting | 1693 | |
| EPO | Filing, Examination, Granting | 11618 | |
| Japan | Filing, Examination, Granting | 2091 | |
| South Korea | Filing, Examination, Granting | 2004 | |
| USA | Filing, Examination, Granting | 4740 |

Total:
22,146
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Abstract[English]
Provided in the embodiments of the present application are an optical system and an optical display apparatus. The optical system comprises a polarization reflection element, a phase retarder and a light splitting element, which are arranged along the same optical axis, wherein the phase retarder is located between the light splitting element and the polarization reflection element. The optical system further comprises a first lens, wherein the first lens comprises a first surface and a second surface, the light splitting element being arranged on one side of the first surface, and the polarization reflection element and the phase retarder being stacked on the second surface. The first lens satisfies: |SAG/(T*D)|≤0.3, wherein D is the effective clear semi-aperture of the second surface, T is the corresponding lens thickness under the effective clear semi-aperture D, and SAG is the depth of the second surface under the effective clear semi-aperture D.[French]
Les modes de réalisation de la présente demande concernent un système optique et un appareil d'affichage optique. Le système optique comprend un élément de réflexion de polarisation, un retardateur de phase et un élément de division de lumière, qui sont agencés le long du même axe optique, le retardateur de phase étant situé entre l'élément de division de lumière et l'élément de réflexion de polarisation. Le système optique comprend en outre une première lentille, la première lentille comprenant une première surface et une seconde surface, l'élément de division de lumière étant disposé sur un côté de la première surface, et l'élément de réflexion de polarisation et le retardateur de phase étant empilés sur la seconde surface. La première lentille satisfait : |SAG/(T*D)|≤0,3, D étant la demi-ouverture transparente efficace de la seconde surface, T étant l'épaisseur de lentille correspondante sous la demi-ouverture transparente efficace D, et SAG étant la profondeur de la seconde surface sous la demi-ouverture transparente efficace D.[Chinese]
本申请实施例提供了一种光学系统以及光学显示设备;其中,所述光学系统包括沿同一光轴设置的偏振反射元件、相位延迟器及分光元件,且所述相位延迟器位于所述分光元件与偏振反射元件之间;所述光学系统还包括第一透镜,所述第一透镜包括第一表面及第二表面,所述分光元件设置于所述第一表面的一侧,所述偏振反射元件及所述相位延迟器层叠设置于所述第二表面;所述第一透镜满足:|SAG/(T*D)|≤0.3,其中,D为所述第二表面的有效通光半口径,T为在此有效通光半口径D下对应的镜片厚度,SAG为在此有效通光半口径D下所述第二表面具有的深度。