An optical module includes a support layer, a device layer which is provided on the support layer, and a movable mirror which is mounted in the device layer. The device layer has a mounting region in which the movable mirror is mounted, and a driving region which is connected to the mounting region. A space corresponding to at least the mounting region and the driving region is formed between the support layer and the device layer. The mounting region is disposed between a pair of elastic support regions included in the driving region and is supported by the pair of elastic support regions.

An optical module includes a support layer, a device layer which is provided on the support layer, and a movable mirror which is mounted in the device layer. The device layer has a mounting region in which the movable mirror is mounted, and a driving region which is connected to the mounting region. A space corresponding to at least the mounting region and the driving region is formed between the support layer and the device layer. The mounting region is disposed between a pair of elastic support regions included in the driving region and is supported by the pair of elastic support regions.

A method and device for refraction adjustment in an augmented reality apparatus, and an augmented reality apparatus. The method for refraction adjustment includes: receiving light rays reflected from eyes of a user wearing an augmented reality apparatus; determining a pupil distance of the user according to the reflected light rays; and generating a refraction correction signal according to the pupil distance of the user and a desired diopter(s) for correcting diopters of the user's eyes by means of a refraction adjustment element.

A system and method are provided for spectral shaping of light from a broadband source using a linear spatial light modulator (SLM). The system includes an illumination source generating light including a plurality of wavelengths, a lens to collimate the light and an aperture to define its angular spread, a diffraction grating to disperse the beam by wavelength, and a focusing element to focus the dispersed beams from the diffraction grating onto a plurality of pixels of the SLM. The SLM is configured to individually modulate the dispersed beams by diffracting light output therefrom into higher orders, where a diffraction angle of output light is greater than an input cone angle of incoming light from the illumination source.

A multi-passage cavity made up of the assembly of a planar mounting and first and second reflective optical elements each having a main face arranged opposite one another, the main face of at least one of the optical elements being microstructured to modify the phase of incident luminous radiation that is reflected several times on each of the optical elements to form transformed radiation, the multi-passage cavity includes precisely three assembly interfaces.

A multi-passage cavity made up of the assembly of a planar mounting and first and second reflective optical elements each having a main face arranged opposite one another, the main face of at least one of the optical elements being microstructured to modify the phase of incident luminous radiation that is reflected several times on each of the optical elements to form transformed radiation, the multi-passage cavity includes precisely three assembly interfaces.

A new projector design combines one spatial light modulator that affects only the phase of the illumination, and one spatial light modulator that only affects its amplitude (intensity). The phase-only modulator curves the wavefront of light and acts as a pre-modulator for a conventional amplitude modulator. This approach works with both white light and laser illumination, generating a coarse image representation efficiently, thus enabling, within a single image frame, significantly elevated highlights as well as darker black levels while reducing the overall light source power requirements.

A new projector design combines one spatial light modulator that affects only the phase of the illumination, and one spatial light modulator that only affects its amplitude (intensity). The phase-only modulator curves the wavefront of light and acts as a pre-modulator for a conventional amplitude modulator. This approach works with both white light and laser illumination, generating a coarse image representation efficiently, thus enabling, within a single image frame, significantly elevated highlights as well as darker black levels while reducing the overall light source power requirements.

Disclosed is an optical modulator. An optical modulator comprises a substrate, an upper transparent electrode on the substrate, a partition wall providing a chamber between the substrate and the upper transparent electrode, an optical modulation member provided in the chamber and disposed on the substrate, and an electrolyte filling the chamber and including a first metal in an ionic state. The optical modulation member comprises a reflection layer on the substrate, and a lower transparent electrode on the reflection layer.

The invention relates to an adaptive optical system (1) comprising: an adaptive optical device (2) comprising an optical processing surface (3) and a driving device (5) for controllably modifying the optical behaviour of said optical processing surface (3), an optical analyser (6) intended to be subjected to an input light beam (7) in order to produce, in response, output signals (8, 9, 10), a control device (11) connected to the optical analyser (6) and to the driving device (5) in order to command the latter depending on said output signals (8, 9, 10), characterised in that said optical analyser (6) is designed to spatially demultiplex, via multi-plane light conversion, the input light beams (7) into a plurality of elementary output light beams (80, 90, 100). Adaptive optical systems.