A manipulator device such as a robot arm that is capable of increasing manufacturing throughput for additively manufactured parts, and allows for the manipulation of parts that would be difficult or impossible for a human to move is described. The manipulator can grasp various permanent or temporary additively manufactured manipulation points on a part to enable repositioning or maneuvering of the part.

The application provides an augmented reality display device comprising a projection source module (10) and an optical path module, wherein the projection source module (10) comprises a projection source (12), the projection source (12) has a curved light outgoing surface (12a), virtual image light (VL) is projected out of the projection source (12) via the curved light outgoing surface (12a), and the optical path module comprises a beamsplitter (20) and a reflector (60), wherein the virtual image light (VL) projected out of the projection source module (10) is incident on the beamsplitter (20), reflected by the beamsplitter (20) onto the reflector (60), reflected by the reflector (60), and then transmitted through the beamsplitter (20), entering a human eye (E) eventually. The application also provides a wearable augmented reality system comprising the augmented reality display device and a projection source module for the augmented reality display device.

An optical system includes a pancake lens assembly which has a lens unit and a liquid crystal device. The lens unit includes a partially reflective mirror, a reflective polarizer, and a quarter waveplate disposed between the partially reflective mirror and the reflective polarizer. The liquid crystal device is disposed between the quarter waveplate and the reflective polarizer. When a light is introduced into the pancake lens assembly in a Z direction, an X-polarized light passes through the liquid crystal device two times and a Y-polarized light passes through the liquid crystal device one time.

An optical system may include (a) a light-guide optical element (LOE) formed from transparent material and having at least first and second mutually-parallel major external surfaces for supporting propagation of an image by internal reflection at the first and second major external surfaces, the LOE having a coupling-out arrangement for coupling out the image towards an eye of the user, the LOE having a coupling-in arrangement; and (b) an image projector comprising an image generator for generating an image and an image conjugate generator for generating a conjugate image.

An augmented reality optical module includes a relay lens group and a reflection lens group. The relay lens group receives and converges the light emitted by the image source. The reflection lens group comprises a first lens and a second lens. The light emitted by the image source is incident to the relay lens group and converged to form the relay image at least once, the light of the last relay image is incident to a first surface of the first lens and reflected, the reflected light is incident to a first surface of the second lens and reflected, and then incident to the first lens and transmitted through the first lens to form imaging light. The ambient light is transmitted in such a manner that the ambient light is transmitted through the second lens and the first lens, sequentially, and then emitted to be superimposed on the imaging light.

Provided is an augmented reality device including a display element configured to generate a first image, an optical coupler including a first surface through which the first image is input and a second surface opposite the first surface and configured to output light that is input through the first surface to the second surface and output light that is input through the second surface to the first surface, a reflective polarizer provided on the side of the second surface of the optical coupler and configured to reflect light with a first polarization and transmit light with a second polarization different from the first polarization, and a polarization selective variable focus lens provided in a traveling path of the light with the first polarization reflected by the reflective polarizer and having variable refractive power with respect to the light with the first polarization.

An object of the present invention is to provide an optical device that can accomplish both the effect of preventing external light reflection and the improvement of utilization efficiency of light emitted from an organic electroluminescent element. The object is achieved by an optical device having an organic electroluminescent substrate, a circularly polarized light-separating layer separating light into right-handed circularly polarized light and left-handed circularly polarized light, a λ/4 plate, and a polarizer, wherein the circularly polarized light-separating layer has a liquid crystal alignment pattern in which a liquid crystal compound is twisted and aligned along a helical axis extending in a thickness direction and the direction of an optical axis derived from the liquid crystal compound changes while continuously rotating in one direction in the plane.

The image display apparatus includes an optical system configured to introduce light from a display surface of a display element to an observer. The optical system includes in order from the display element toward the observer, a first phase plate, a semi-transmissive reflective surface, a lens, a second phase plate, and a polarization beam splitter. The display element is configured to make, at a central portion of the display surface, luminance in a normal direction in which a normal to the display surface extends higher than that in a specific direction tilted outward with respect to the normal direction, and to make, at a most edge portion of the display surface, the luminance in the normal direction lower than that in the specific direction.

An optical path control apparatus includes an oscillating part including an optical member on which light is made incident; an actuator configured to oscillate the oscillating part; and a drive unit configured to apply to the actuator a drive signal with a waveform including a first period in which a current value is changed from a first current value to a second current value and including a second period that is continuous with the first period and in which the current value is held at the second current value, to cause the actuator to oscillate the oscillating part and to control an optical path. The drive unit applies the drive signal so that the length of the first period is a value corresponding to the natural frequency of the oscillating part.

Provided is an augmented reality display with a thin optical combiner, and the augmented reality display with a thin optical combiner provided to have an overall shape wearable by a user includes an optical combiner part provided in the form of a lens located in front of a user's eyes to receive a virtual image light wave and combine an external scene and a virtual image, wherein the optical combiner part includes a plurality of glass substrates, and a polarization-dependent lens inserted obliquely in a diagonal direction between the plurality of glass substrates to transmit optically modulated virtual image light waves in a direction toward the eyes.