Eyepiece optical assembly, system and device

An eyepiece optical assembly, comprising a first optics group, a second optics group and a third optics group arranged in sequence along an optical axis from a human eye viewing side to a miniature display;

• the first optics group consists of a first lens group, a first polarizer group and a first waveplate group, the first lens group consists of a first lens and a second lens, the first lens, the first polarizer group, the second lens and the first waveplate group are arranged in sequence, the second optics group consists of a second lens group and a transflective optical surface arranged in sequence, and the third optics group consists of a third lens group, a second waveplate group and a second polarizer group;
• and both the second lens group and the third lens group are positive lens groups;
• an optical focal length of the eyepiece optical assembly is F, a length from a first optical surface of the eyepiece optical assembly to the miniature display is D, a combined optical focal length of the first optics group and the second optics group is F12, a combined center thickness of the first optics group and the second optics group is D1, an optical focal length of the third optics group is F3, and a center thickness of the third optics group is D2;
• F, F12, D1, F3, and D2 satisfy the following relations:
• 1.1≤F12/F≤1.8;
• 1.13≤F3/F≤1.98;
• 0.56≤F12/F3≤1.59;
• 0.47≤D1/D≤0.73;
• 0.2≤D2/D≤0.53;
• 0.28≤D1/D2≤1.12;
• the first polarizer group includes a polarizer a in which light of one polarization state of P light and S light of natural light is reflected and light of the other polarization state transmits, and includes N polarizers bN in which light of one polarization state of P light and S light of natural light is absorbed and light of the other polarization state transmits, wherein N is a natural number;
• the first waveplate group includes K waveplates cK with a quarter phase retardation for polarized light, and includes J waveplates dJ with a half phase retardation for polarized light, wherein K is a positive integer greater than or equal to 1, and J is a natural number;
• the second waveplate group includes Z waveplates eZ with a quarter phase retardation for polarized light, and includes Y waveplates fY with a half phase retardation for polarized light, wherein Z is a positive integer greater than or equal to 1, and Y is a natural number;
• the second polarizer group includes M polarizers gM in which light of one polarization state of P light and S light of natural light is absorbed and light of the other polarization state transmits, and includes X waveplates hX with a half phase retardation for polarized light, wherein M is a positive integer greater than or equal to 1, X is a natural number, and M is a positive integer greater than or equal to 1.