A manufacturing method of a projection apparatus is provided. The manufacturing method of the projection apparatus includes: classifying a light valve by using an optical jig which includes a lens with a constant aperture; selecting an aperture stop with a size corresponding to classification of the light valve; and assembling the light valve and the aperture stop to form the projection apparatus.

In various embodiments, pointing errors in a non-wavelength-beam-combining dimension of a laser system are at least partially alleviated via staircased collimation lenses.

A multispectral harmonisation device intended to align the optical channels of an optronic system that includes at least two directional optical sources emitting respective optical beams of various wavelengths belonging to various spectral bands and comprises a parabolic mirror and means for positioning and orienting each of the optical sources so that each of the optical beams emitted by the optical sources passes through the optical focus of the parabolic mirror before being reflected by said parabolic mirror so that all the optical beams form, by reflection on the parabolic mirror, a multispectral collimated beam.

Direct-bonded lamination for improved image clarity in optical devices is provided. An example process planarizes and plasma-activates optical surfaces to be laminated together, then forms direct bonds between the two surfaces without an adhesive or adhesive layer. This process provides improved optics with higher image brightness, less light scattering, better resolution, and higher image fidelity. The direct bonds also provide a refractory interface tolerant of much higher temperatures than conventional optical adhesives. The example process can be used to produce many types of improved optical components, such as improved laminated lenses, mirrors, beam splitters, collimators, prism systems, optical conduits, and mirrored waveguides for smartglasses and head-up displays (HUDs), which provide better image quality and elimination of the dark visual lines that are apparent to a human viewer when conventional adhesives are used in conventional lamination.

Disclosed are high-density energy directing devices and systems thereof for two-dimensional, stereoscopic, light field and holographic head-mounted displays. In general, the head-mounted display system includes one or more energy devices and one or more energy relay elements, each energy relay element having a first surface and a second surface. The first surface is disposed in energy propagation paths of the one or more energy devices and the second surface of each of the one or more energy relay elements is arranged to form a singular seamless energy surface. A separation between edges of any two adjacent second surfaces is less than a minimum perceptible contour as defined by the visual acuity of a human eye having better than 20/40 vision at a distance from the singular seamless energy surface, the distance being greater than the lesser of: half of a height of the singular seamless energy surface, or half of a width of the singular seamless energy surface.

A laser range finder and method for adjusting, comprising a beam source, a photodetector, at least one beam shaping optic, an optic bracket, a circuit board, a beam splitting optic and a connecting device; the beam source comprises a first electro-optical component for emitting a laser beam, the photodetector comprises a second electro-optical component for receiving a received beam reflected and/or scattered by a target object along an optical axis, the beam shaping optic is configured to form a laser beam and/or a receiving beam, the optic bracket comprises a first accommodating seat for fixing the first electro-optical component and a second accommodating seat for fixing the at least one beam shaping optic, the circuit board comprises an another seat for fixing the second electro-optical component, the connecting device is configured to connect the optic bracket with the circuit board; the beam splitting optic is arranged on an adjustment bracket.

A multispectral harmonisation device intended to align the optical channels of an optronic system that includes at least two directional optical sources emitting respective optical beams of various wavelengths belonging to various spectral bands and comprises a parabolic mirror and means for positioning and orienting each of the optical sources so that each of the optical beams emitted by the optical sources passes through the optical focus of the parabolic mirror before being reflected by said parabolic mirror so that all the optical beams form, by reflection on the parabolic mirror, a multispectral collimated beam.

Disclosed are systems and methods for manufacturing energy relays for energy directing systems and Transverse Anderson Localization. Systems and methods include providing first and second component engineered structures with first and second sets of engineered properties and forming a medium using the first component engineered structure and the second component engineered structure. The forming step includes randomizing a first engineered property in a first orientation of the medium resulting in a first variability of that engineered property in that plane, and the values of the second engineered property allowing for a variation of the first engineered property in a second orientation of the medium, where the variation of the first engineered property in the second orientation is less than the variation of the first engineered property in the first orientation.

Disclosed embodiments include an energy directing device having one or more energy relay elements configured to direct energy from one or more energy locations through the device. In an embodiment, surfaces of the one or more energy relay elements may form a singular seamless energy surface where a separation between adjacent energy relay element surfaces is less than a minimum perceptible contour. In disclosed embodiments, energy is produced at energy locations having an active energy surface and a mechanical envelope. In an embodiment, the energy directing device is configured to relay energy from the energy locations through the singular seamless energy surface while minimizing separation between energy locations due to their mechanical envelope. In embodiments, the energy relay elements may comprise energy relays utilizing transverse Anderson localization phenomena.

An optical layered composite includes: a substrate having a front face, a back face, a thickness d.sub.s between the front face and the back face and a refractive index n.sub.s; and a coating applied to the front face. The coating comprises one or more coating layers. For at least one wavelength λ.sub.g in the range from 390 nm to 700 nm, the coating satisfies one of the following criterion: n.sub.c<n.sub.s; or n.sub.c>n.sub.s, and $d_c<\frac{k}{\sqrt{n_c^2-n_s^2}}.Math.\arctan \sqrt{\frac{n_s^2-1}{n_c^2-n_s^2}};$
n.sub.c is a mean refractive index of the coating layers, weighted by thickness; do is a total thickness of the coating; thicknesses are determined in a direction perpendicular to the front face; and k=λ.sub.g/4π.