Abstract: The present invention relates to a reflective eyepiece optical system and a head-mounted near-to-eye display apparatus. The system includes: a first lens group, and a first optical element and a second lens group for transmitting and reflecting a light from a miniature image displayer. The second lens group includes an optical reflection surface, and the optical reflection surface is an optical surface farthest from a human eye viewing side in the second lens group. The optical reflection surface is concave to a human eye viewing direction. The first optical element reflects the light refracted by the first lens group to the second lens group, and then transmits the light refracted, reflected, and refracted by the second lens group to the human eye.

Abstract: The present invention relates to a reflective eyepiece optical system and a head-mounted near-to-eye display device. The system includes: a first lens group, a first optical element and a second lens group for transmitting and reflecting light from a miniature image displayer; the second lens group includes an optical reflection surface, and the optical reflection surface is the optical surface farthest from a human eye viewing side in the second lens group; the optical reflection surface is concave to human eyes; the first optical element reflects the light refracted by the first lens group to the second lens group, and then transmits the light refracted, reflected and again refracted by the second lens group to the human eyes.

Abstract: The present invention relates to a reflective eyepiece optical system and a head-mounted near-to-eye display device. The system includes: a first optical element and a second optical element arranged successively in an incident direction of an optical axis of human eyes, and a first lens group located on an optical axis of a miniature image displayer. The first optical element is used for transmitting and reflecting an image light from the miniature image displayer. The second optical element includes an optical reflection surface. The first optical element reflects the image light refracted by the first lens group to the second optical element, and then transmits the image light reflected by the second optical element to the human eyes.

Abstract: The present invention relates to an eyepiece optical structure, an eyepiece system and an optical device. The structure includes a lens group T1 on which an optical binary surface pattern and a Fresnel surface pattern distributed in a direction from a human eye viewing side to a display device side are arranged. The lens group T1 has a focal length of F, and a clear aperture of D, and F and D satisfy the following relational expression: 1.9 ? F/D. The optical binary surface pattern has a focal length of F2, and F and F2 satisfy the following relational expression: -120 < F2/F < 10.78. In the present invention, a combination of the novel optical surface pattern and the Fresnel surface pattern is adopted, and the focal length of each lens and lens group achieves great elimination of system aberration under the condition of meeting specific conditions.

Abstract: The present invention relates to a reflective eyepiece optical system and a head-mounted near-to-eye display device. The system includes: a first optical element and a second optical element arranged successively long an incident direction of an optical axis of human eyes and a first lens group located on in optical axis of in miniature image displayer. The first optical element is used for transmitting and reflecting an image light from the miniature image displayer. The second optical element includes one optical reflect on surface. The first optical element reflects the image light refracted b the first tens group to the second optical element, and then transits the image light reflected by the second optical element to the human eyes. The effective focal lengths of the first sub-lens group and the second sub-lens group are a combination of positive and negative.

Abstract: The present invention relates to a reflective eyepiece optical system and a head-mounted near-to-eye display apparatus. The system includes: a first lens group, and a first optical element and a second lens group for transmitting and reflecting a light from a miniature image displayer. The second lens group includes an optical reflection surface, and the optical reflection surface is an optical surface farthest from a human eye viewing side in the second lens group. The optical reflection surface is concave to a human eye viewing direction. The first optical element reflects the light refracted by the first lens group to the second lens group, and then transmits the light refracted, reflected, and refracted by the second lens group to the human eyes.

Abstract: The present invention relates to a reflective eyepiece optical system and a head-mounted near-to-eye display device. The system includes: a first lens group, a first optical element and a second lens group for transmitting and reflecting light from a miniature image displayer; the second lens group includes an optical reflection surface, and the optical reflection surface is the optical surface farthest from a human eye viewing side in the second lens group; the optical reflection surface is concave to human eyes; the first optical element reflects the light refracted by the first lens group to the second lens group, and then transmits the light refracted, reflected and again refracted by the second lens group to the human eyes.

Abstract: The present invention relates to a reflective eyepiece optical system and a head-mounted near-to-eye display device. The system includes: a first optical element and a second optical element arranged successively in an incident direction of an optical axis of human eyes, and a first lens group located on an optical axis of a miniature image displayer. The first optical element is used for transmitting and reflecting an image light from the miniature image displayer. The second optical element includes an optical reflection surface. The first optical element reflects the image light refracted by the first lens group to the second optical element, and then transmits the image light reflected by the second optical element to the human eyes.

Abstract: The present invention relates to a reflective eyepiece optical system and a head-mounted near-to-eye display apparatus. The system includes: a first lens group, and a first optical element and a second lens group for transmitting and reflecting a light from a miniature image displayer. The second lens group includes an optical reflection surface, and the optical reflection surface is an optical surface farthest from a human eye viewing side in the second lens group. The optical reflection surface is concave to a human eye viewing direction. The first optical element reflects the light refracted by the first lens group to the second lens group, and then transmits the light refracted, reflected, and refracted by the second lens group to the human eye.

Abstract: The present invention relates to a reflective eyepiece optical system and a head-mounted near-to-eye display device. The system includes: a first optical element and a second optical element arranged successively along an incident direction of an optical axis of human eyes, and a first lens group located on an optical axis of an miniature image displayer. The first optical element is used for transmitting and reflecting an image light from the miniature image displayer. The second optical element includes one optical reflection surface. The first optical element reflects the image light refracted by the first lens group to the second optical element, and then transmits the image light reflected by the second optical element to the human eyes. The effective focal lengths of the first sub-lens group and the second sub-lens group are a combination of positive and negative.

Abstract: The present invention relates to a reflective eyepiece optical system and a head-mounted near-to-eye display device. The system includes: a first lens group, and a first optical element and a second lens group for transmitting and reflecting a light from a miniature image displayer; the second lens group includes one optical reflection surface which is an optical surface farthest from a human eye viewing side in the second lens group; the optical reflection surface is concave to a human eye viewing direction; the first optical element reflects the light refracted by the first lens group to the second lens group, and then transmits the light refracted, reflected and then refracted by the second lens group to human eyes; and the focal length combination among respective lenses is negative, positive and positive.

Abstract: The present invention relates to a reflective eyepiece optical system and a head-mounted near-to-eye display device. The system includes: a first optical element and a second optical element which are arranged sequentially along an incident direction of an optical axis of human eyes, and a first lens group located on an optical axis of a miniature image displayer; wherein the first optical element and the second optical element are used for transmitting and reflecting an image light from the miniature image displayer; the first optical element reflects the image light passing through the first lens group to the second optical element, and then transmits the image light reflected by the second optical element to the human eyes.

Abstract: The present invention relates to a reflective eyepiece optical system and a head-mounted near-to-eye display device. The system includes: a first optical element and a second optical element arranged successively along an incident direction of an optical axis of the human eye, and a first lens group located on an optical axis of an miniature image displayer. The first optical element reflects the image light refracted by the first lens group to the second optical element, and then transmits the image light reflected by the second optical element to the human eye. The effective focal lengths of the first sub-lens group, the second sub-lens group and the third sub-lens group are a combination of positive, negative and positive. The optical path is effectively folded, the overall size of the optical system is reduced, aberrations are largely eliminated, and a visual experience effect of high liveness is achieved.

Abstract: A head-mounted display apparatus is disclosed which including a main frame arranged with left and right display screens, left and right eyepieces arranged in correspondence with the left and right display screen. The main frame is further arranged with a diopter and interpupillary distance adjustment mechanism for adjusting a distance between the display screens and the eyepieces and a distance between two eyepieces at each side. The diopter and interpupillary distance adjustment mechanism employs a rotation operation and a sliding operation of a same knob assembly for achieving adjustments of a diopter and an interpupillary distance of the head-mounted display apparatus. That is, not only the operation is easier, but also the product structure is simplified, so that the head-mounted display apparatus has a more compact structure, lighter weight and more comfortable and convenient use.

Abstract: An eyepiece optical system for a near-eye display, and a head-mounted display device are disclosed. The eyepiece optical system has a first lens, a reflection unit, a second lens, and a third lens group. An optical axis of the second lens and an optical axis of the third lens group are coaxially with each other and coaxially with an optical axis of the first lens when they are reflected by the reflection unit. The third lens group has a third lens. An optical surface of the first lens proximate to the eye viewing side is convex to an eye viewing direction, and an optical surface of the second lens proximate to the miniature image displayer side is concave to a miniature image displayer direction. The present eyepiece optical system has advantages such as compact structure, small size, high optical resolution and so on, which gives the best visual experience.

Abstract: Disclosed is an eyepiece optical system with a large field-of-view angle, and a head-mounted display apparatus. The eyepiece optical system comprises a first lens group (G1) and a second lens group (G2) which are arranged coaxially and successively along an optical axis from a human eye to an image source and meet a certain focal length relationship. A distance (D12) between the first lens (L1) and the second lens (L2), a focal length relationship of lenses within the second lens group (G2) and the material properties of various lenses meet a certain relationship. The eyepiece optical system has the advantages of large aperture, large field-of-view, high resolution, low distortion, and small size, etc., and is suitable for a head-mounted display and similar apparatuses.