A display for displaying an image to a viewer includes an image generator having an illumination subsystem generating illumination of at least a first color, the image generator employing the illumination to generate an image. Projection optics projects illumination from the image for display to the viewer. The illumination subsystem includes a first laser generating a first laser beam of the first color with a first polarization and a second laser generating a second laser beam of the first color with a second polarization. The first and second polarizations are orthogonal at at least one location within the projection optics, thereby projecting a quasi-unpolarized image.

The present disclosure relates to a scanner and an electronic apparatus including the scanner. The scanner according to the present disclosure comprises a mirror, a substrate separated from the outside of the mirror, a first and a second mirror support member, a first and a second mirror spring, and a plurality of combs formed on the substrate and to supply a rotational force based on electrostatic force to the mirror, wherein the substrate includes a first edge and a second edge closer to the mirror than the first edge and placed at a lower position than the first edge, and the optical interference angle at the second edge is greater than the optical interference angle at the first edge. Accordingly, it is possible to output light in both directions of a mirror and thereby to perform wide-angle scanning.

A piezoelectric actuator comprises a substrate, an insulator layer on the substrate, and a piezo actuator stack on the insulator layer. The piezo actuator stack comprises an insulator-adjacent electrode on the insulator layer. A piezo layer having a tapered sidewall resides on a portion of the insulator-adjacent electrode. An insulator-distal electrode on the piezo layer having a taper-adjacent edge offset from an intersection of the tapered sidewall of the piezo layer and the insulator-adjacent electrode.

One example implementation of a mirror system comprises a carrier, and a first chip package arranged on a surface of the carrier and comprising a first MEMS mirror. Furthermore, the mirror system comprises a second chip package arranged on the surface of the carrier and comprising a second MEMS mirror. The mirror system furthermore comprises a reflective element arranged over the surface of the carrier and above the first chip package and the second chip package in such a way that a radiation that is incident in the mirror system and is reflected by the first MEMS mirror in the direction of the reflective element is reflected by the reflective element in the direction of the second MEMS mirror.

A light detection and ranging (LiDAR) scanning system is provided. The system comprises a light steering device; a galvanometer mirror controllable to oscillate between two angular positions; and a plurality of transmitter channels configured to direct light to the galvanometer mirror. The plurality of transmitter channels are separated by an angular channel spacing from one another. The system further comprises a control device. Inside an end-of-travel region, the control device controls the galvanometer mirror to move based on a first mirror movement profile. Outside the end-of-travel region, the control device controls the galvanometer mirror to move based on a second mirror movement profile. The second mirror movement profile is different from the first mirror-movement profile. Movement of the galvanometer mirror based on the first mirror movement profile facilitates minimizing instances of scanlines corresponding to the end-of-travel region having a pitch exceeding a first target pitch.

In a mirror unit, a first wall portion is higher than a second wall portion. A window member is disposed on a top surface of the first wall portion and a top surface of the second wall portion and is inclined with respect to a mirror surface. When any one of first to fourth wall portions is set as a first reference wall portion, in a cross-section perpendicular to the first reference wall portion, a first line passing through a first end at a side of the first reference wall portion in the mirror surface and a first corner portion formed at the side of the first reference wall portion by an outer surface and a first side surface in the window member intersects the first wall portion. A wiring portion includes a portion extending inside a base and leads outside a frame member.

An apparatus includes a reflecting element with first, second and third reflecting surfaces, and a receiving element configured to receive a light flux from a light source reflected by the reflecting element. A value of an inner product of a unit normal vector of the first reflecting surface and a unit normal vector of the second reflecting surface, a value of an inner product of the unit normal vector of the first reflecting surface and a unit normal vector of the third reflecting surface, and a value of an inner product of the unit normal vector of the second reflecting surface and the unit normal vector of the third reflecting surface are appropriately set.

The invention provides an optical super-resolution microscopic imaging system comprising a dichroic beamsplitter for annular parallel light to transmit through; a focusing lens used for converging the annular parallel light transmitted through the dichroic beamsplitter; a confocal pinhole for the annular parallel light after being converged to pass through to filter the annular parallel light; a varifocal lens system for collimating the annular parallel light passing through the confocal pinhole into excited annular parallel light; and a detector for receiving and processing fluorescence emitted by the excited sample, the fluorescence emitted by the excited sample being returned by the same way, and the dichroic beamsplitter separating the fluorescence emitted by the sample from an annular parallel light path and turning the fluorescence to the detector to obtain a super-resolution image of the sample.

A retinal projection display system includes a light source for projecting an image, a scanning mirror having a field of view larger than the image, and a reflective surface on which the image is projected, wherein the reflective surface is larger than the image. The scanning mirror projects the image onto a viewable region of the reflective surface such that the image is projected into a retina of a user.

An irradiation device for additively manufacturing three-dimensional objects may include a beam generation device configured to generate an energy beam, an optical modulator including a micromirror array disposed downstream from the beam generation device, and a focusing lens assembly disposed downstream from the optical modulator. The micromirror array may include a plurality of micromirror elements configured to reflect a corresponding plurality of beam segment of the energy beam along a beam path incident upon the focusing lens assembly. The focusing lens assembly may include one or more lenses configured to focus the plurality of beam segments such that for respective ones of a plurality of modulation groups including a subset of micromirror elements, a corresponding subset of beam segments are focused to at least partially overlap with one another at a combination zone corresponding to the respective modulation group.