A head-mounted device may have optical modules that present images to a user's eyes. Each optical module may have a lens barrel with a display and a lens that presents an image from the display to a corresponding eye box. To accommodate users with different interpupillary distances, the optical modules may be slidably coupled to guide members such as guide rods. Actuators may slide the optical modules towards or away from each other along the guide rods. The guide rods may be formed from fiber-composite tubes with end caps that are fastened to a frame in the head-mounted device. The tubes may be partly or completely filled with cores to add strength. Low-friction coatings such as metal coatings may be formed on the fiber-composite tubes and the corresponding inner surfaces of the optical module structures that slidably engage the fiber-composite tubes.

A head-mounted device may have optical modules that present images to a user's eyes. Each optical module may have a lens barrel with a display and a lens that presents an image from the display to a corresponding eye box. To accommodate users with different interpupillary distances, the optical modules may be slidably coupled to guide members such as guide rods. Actuators may slide the optical modules towards or away from each other along the guide rods. The guide rods may be formed from fiber-composite tubes with end caps that are fastened to a frame in the head-mounted device. The tubes may be partly or completely filled with cores to add strength. Low-friction coatings such as metal coatings may be formed on the fiber-composite tubes and the corresponding inner surfaces of the optical module structures that slidably engage the fiber-composite tubes.

The invention relates to a long range optical device with at least a first visual optical path and a focusing device for focusing the at least first visual optical path. The long range optical device may also include a laser distance meter with a laser transmitter and a laser receiver, wherein a part of an optical path of the laser receiver extends in the at least first visual optical path to the objective lens. A region of the deflection of the optical path of the laser receiver out of the at least first visual optical path may be disposed on at least one optical component. The focusing device may be disposed between the at least one optical component for deflecting of the optical path of the laser receiver and the objective lens.

The invention relates to a long range optical device with at least a first visual optical path and a focusing device for focusing the at least first visual optical path. The long range optical device may also include a laser distance meter with a laser transmitter and a laser receiver, wherein a part of an optical path of the laser receiver extends in the at least first visual optical path to the objective lens. A region of the deflection of the optical path of the laser receiver out of the at least first visual optical path may be disposed on at least one optical component. The focusing device may be disposed between the at least one optical component for deflecting of the optical path of the laser receiver and the objective lens.

The invention discloses a head-mounted display apparatus. The head-mounted display comprises a headband module and a head-mounted display module, wherein the head-mounted display comprises an optical module, the headband comprises a connecting structure connected with the head-mounted display housing so as to adjust the wearing angle of the head-mounted display module; The optical module comprises a module housing, a left lens barrel mechanism, a right lens barrel mechanism, a left sight distance adjusting mechanism and a left pupillary distance adjusting mechanism for adjusting the sight distance and pupillary distance of the left lens barrel mechanism, a right sight distance adjusting mechanism and a right pupillary distance adjusting mechanism for adjusting the sight distance and pupillary distance of the right lens barrel mechanism. The head-mounted display can separately adjust the sight distance and pupillary distance of the left and right lens barrel mechanism, as well as the wearing angle.

The invention discloses a head-mounted display apparatus. The head-mounted display comprises a headband module and a head-mounted display module, wherein the head-mounted display comprises an optical module, the headband comprises a connecting structure connected with the head-mounted display housing so as to adjust the wearing angle of the head-mounted display module; The optical module comprises a module housing, a left lens barrel mechanism, a right lens barrel mechanism, a left sight distance adjusting mechanism and a left pupillary distance adjusting mechanism for adjusting the sight distance and pupillary distance of the left lens barrel mechanism, a right sight distance adjusting mechanism and a right pupillary distance adjusting mechanism for adjusting the sight distance and pupillary distance of the right lens barrel mechanism. The head-mounted display can separately adjust the sight distance and pupillary distance of the left and right lens barrel mechanism, as well as the wearing angle.

A medical magnification device, which is an example of an embodiment, comprises: a device body which has a face pad that comes into contact with the face of a user, and which covers the front of the left and right eyes of the user; a belt for fixing the device body to the head of the user; an imaging unit which has a zoom lens provided to the front of the device body, and which performs digital conversion on a magnified image obtained by the zoom lens; and a pair of monitors.

A wearable display apparatus is described herein. The wearable display apparatus includes a headset, a left-eye optical system, a right-eye optical system, and an inter-pupil distance (IPD) adjustment system coupled to the headset, the left-eye optical system, and the right-eye optical system for adjusting an inter-pupil spacing between the left-eye optical system and the right-eye optical system.

An optical system for imaging an object includes a first objective, a first image stabilizing unit, and a first image plane, wherein, as seen from the first objective in the direction of the first image plane, the first objective is arranged first along a first optical axis, followed by the first image stabilizing unit and then the first image plane, wherein the first image stabilizing unit comprises a first optical unit and a second optical unit, wherein the first optical unit is arranged between the first objective and the second optical unit, wherein the first optical unit is embodied so as to be rotatable about a first axis of rotation, and wherein the second optical unit is embodied so as to be rotatable about a second axis of rotation. The second optical unit is embodied as an optical roof edge unit.

Disclosed herein are a slim immersive display device and a slim visualization device. The slim immersive display device includes a slim visualization module for forming an image on a retina of an eyeball of a user based on an externally input image signal, a state information acquisition unit for acquiring a state of an external device as a state image, and a content control unit for analyzing the state image, generating an image corresponding to virtual-reality environment information, and inputting the image to the slim visualization module.