An optical device includes a lens mirror array, in which transparent optical elements are connected to each other along a first direction, and a case, in which the lens mirror array is contained and fixed. The case includes at least three holes through which a manufacturing jig can pass. The jig can be used to press the lens mirror array in a direction intersecting the first direction at three or more positions on the lens mirror array to deform the lens mirror array to correct for possible distortions in the optical device prior to the fixing of the lens mirror array to the case.

A projection lens is separated by a second mirror into a first optical system that is disposed so as to be closer to an image forming panel and a second optical system that includes the second mirror and is disposed so as to be closer to a screen which is a projection surface. The second optical system is held rotatably around a second optical axis with respect to the first optical system by a first rotation mechanism. A rotation angle of the second optical system with respect to the first optical system is detected by a first sensor. Atilt angle of the projected image on the projection surface by the rotation angle is obtained by a tilt correction section, and the display position of the image to be displayed on the image forming panel is corrected according to the tilt angle.

An imaging system for creating an image of a target object comprising a mirror mounted on a gimbal and arranged to rotate about at least one axis, a gimbal drive unit configured to control the orientation of the gimbal, and a camera having its optical axis directed onto the mirror in order that an image reflected in the mirror is within a field of view of the camera, wherein the control unit is arranged to position the gimbal such that a reflection of a target object is within a field of view of the camera.

A head-up display device makes it possible to increase the number of common parts between when mounted in a right-hand-drive car and when mounted in a left-hand-drive car. A head-up display device includes: a first unit which generates display light; and a second unit to which the first unit is attached, and which displays a virtual image by guiding the display light generated by the first unit to a windshield. The first unit is provided with a projector which emits the display light, and a first optical relay which guides the display light from the projector to the second unit along a virtual plane. The second unit is provided with a second optical relay which guides the display light to the windshield such that an irradiation position at which the windshield is irradiated with the display light is shifted in a car width direction crossing the virtual plane.

A display apparatus and a display control method are provided. The display apparatus includes: an image source configured to output a first image; a relay optics component configured to change a size of the first image and to transfer the first image; a surrounding structure provided around the image source or the relay optics component, and including a second image of a surrounding object; and a combiner configured to form a first virtual image by reflecting the first image, and to form a second virtual image around the first virtual image by reflecting the second image.

A display system includes a display device, a first mirror, and a second mirror. The display device includes a display surface that displays a first image. Light emitted by the display device is incident directly or indirectly on the first mirror. The first mirror reflects the light incident. The light reflected by the first mirror is directly or indirectly incident on the second mirror. The second mirror reflects, toward an eye-box, the light incident. The light reflected by the second mirror enters an eye of an observer present within the eye-box to display, on the eye of the observer, a second image based on the first image. The first mirror is a Fresnel mirror.

The present disclosure relates to multiple view optical systems. An example optical system includes at least one primary optical element configured to receive incident light from a scene and a plurality of relay mirrors optically coupled to the at least one primary optical element. The optical system also includes a lens optically coupled to the plurality of relay mirrors, and an image sensor configured to receive focused light from the lens. The image sensor includes a first light-sensitive area and a second light-sensitive area. The primary optical element, the plurality of relay mirrors, and the lens interact with the incident light to form a first focused light portion and a second focused light portion. The first focused light portion forms a first image portion of the scene on the first light-sensitive area and the second focused light portion forms a second image portion of the scene on the second light-sensitive area.

Methods and systems for relaying an optical image using a cascade arrangement of tilted, concave mirrors are presented. An exemplary optical relay system includes a cascade arrangement of four mirrors each having concave, spherical surface figures. The first and third mirrors are configured to focus collimated wavefronts and the second and fourth mirrors re-collimate diverging wavefronts reflected from the first and third mirrors. Each mirror is tilted such that wavefronts located in the local field plane and local pupil plane of each mirror are physically separated. The magnitude and direction of each tilt angle are arranged such that off-axis aberrations introduced by each individual mirrors are largely compensated by the other mirrors. Such an optical relay system is employed to relay images of the pupil plane of a metrology system that is configured to perform accurate measurements of semiconductor structures and materials over a broad range of illumination wavelengths.

The present invention relates to optical imaging devices and methods for reading optical codes. The image device comprises a sensor, a lens, a plurality of illumination devices, and a plurality of reflective surfaces. The sensor is configured to sense with a predetermined number of lines of pixels, where the predetermined lines of pixels are arranged in a predetermined position. The lens has an imaging path along an optical axis. The plurality of illumination devices are configured to transmit an illumination pattern along the optical axis, and the plurality of reflective surfaces are configured to fold the optical axis.

A front projection display device is provided including an image-generating source configured to generate an image, a wide angle lens system adapted to receive the image, and a screen. The wide angle lens system may be configured to increase distortion of the image in a first stage and decrease distortion of the image in a second stage. The screen may be configured to receive the image from the wide angle lens system on a first side and reflect the image back to a viewer on the first side. In another embodiment, a screen is provided for a front projection system, the screen may be configured to receive light from a steep angle and may include any number of surface topographies configured to reflect light back to the viewer along a desired viewing plane.