The disclosure relates to a correction light device for the irradiation of optical elements of an optical arrangement, in particular a lens, such a microlithography lens having a correction light, which include at least one correction light source and at least one mirror arrangement that deflects the light from the correction light source in the beam path to the optical element such that at least part of at least one surface of at least one optical element of the optical arrangement are irradiated in a locally and/or temporally variable fashion. The correction light strikes the surface of the optical element at a flat angle such that the obtuse angle between the optical axis of the optical arrangement at the location of the optical element and the correction light beam is less than or equal to 105.

A reconfigurable optical device includes a spatial light modulator and an optical signal generator. The spatial light modulator includes a layer of optically-sensitized carbon nanotubes, and each optically-sensitized carbon nanotube is configured to transition between a conductive state and a semiconductive state responsive to an optical signal. The optical signal generator is configured to provide the optical signal to the spatial light modulator to cause the layer of optically-sensitized carbon nanotubes to form a pattern of conductive nanotubes, the pattern of conductive nanotubes configured to modify interfering signal to form an optical vortex.

A method and apparatus for creating an atmospheric electromagnetic radiation path modifying element (40) operative to simulate a physical optical device, the method comprising applying electromagnetic radiation to a selected plurality of three-dimensional portions (12FIG. 3) of an atmospheric volume (10) so as to heat and/or ionise the air within said portions, wherein said selected portions are spatially located together in a substantially unbroken three-dimensional configuration.

A see-through type display apparatus includes a see-through type optical system configured to transmit a first image via a first-path light, which is light traveling on a first path, to an ocular organ of a user, and a second image via a second-path light, which is light traveling on a second path, to the ocular organ of the user; and an incident light-dependent lens unit provided between the see-through type optical system and the ocular organ of the user and having different refractive powers according to characteristics of incident light, where the incident light-dependent lens unit has a positive first refractive power with respect to the first-path light and has a second refractive power different from the first refractive power with respect to the second-path light.

Disclosed herein are techniques for dynamically forming an optical component that automatically aligns with and changes positions with a scanning light beam to modify the wave front of the scanning light beam, such as collimating the scanning light beam. More specifically, a patterning beam that aligns with the scanning light beam may be scanned together with the scanning light beam to form the self-aligning and travelling optical component in an electro-optic material layer that is connected in serial with a photoconductive material layer to a voltage source, where the patterning beam optically modulates the impedance of the photoconductive material layer and therefore an electric field within the electro-optic material layer, the modulated electric field causing localized changes of refractive index in the electro-optic material layer to form the self-aligning and travelling optical component.

An optical phase array, includes, in part, N optical signal emitting elements, and N lenses each associated with a different one of the N optical signal emitting elements and positioned to form an image of its associated signal emitting element, where N is an integer greater than 1. The optical signal emitting elements may be a grating coupler, an edge coupler, and the like. At least a number of the lenses may be formed from Silicon. The optical phased array may optionally include one or more concave or convex lenss positioned between the signal emitting elements and the N lenses. The optical signal emitting elements may be formed in a silicon dioxide layer formed above a semiconductor substrate and the lenses may be formed from Silicon disposed above the silicon dioxide layer. The optical signal emitting elements may receive an optical signal generated by the same source.

A long range electromagnetic radiation sensor apparatus comprising a sensing system for receiving electromagnetic radiation signals from an object or area of interest and at least one electromagnetic radiation sensor, the apparatus further comprising an electromagnetic radiation source and a control system configured to cause electromagnetic radiation from said source to be applied to a selected plurality of three-dimensional portions of an atmospheric volume between said optical system and said object or area of interest (204) so as to heat and/or ionise the air within said portions, wherein said selected portions are spatially located together in a three-dimensional configuration so as to simulate an electromagnetic radiation path modifying device (202) for capturing said electromagnetic signals from said object or area of interest and directing and/or converging said captured signals toward said electromagnetic radiation sensor of said sensing system.

A window system for a passenger compartment of a vehicle includes a transparent window having a window treatment, an incident light monitoring subsystem, an incident light management subsystem and a controller. The incident light monitoring subsystem monitors incident light transmitted into the passenger compartment, determines a field of view of a passenger and determines an intensity of the incident light relative to the field of view of the passenger. The incident light management subsystem individually controls a plurality of light projectors to project a light beam that interacts with a subsection of the window treatment to modulate light transparency of one of the subsections of the window based upon the intensity of the incident light in relation to a field of view of the passenger.

The present disclosure relates to a method and apparatus for performing a spatial domain-based optical convolution operation. A method of performing a convolution operation according to an embodiment of the present disclosure may comprise: performing a first optical Fourier transform on a spatial domain image; performing a second optical Fourier transform on a spatial domain kernel; performing an element-wise product operation between a result of the first optical Fourier transform and a result of the second optical Fourier transform; calculating a convolution result by performing a third optical Fourier transform on a result of the element-wise product operation; and obtaining data based on the convolution result.

We describe methods and devices for manipulating optical signals. A method of manipulating an optical signal comprises providing a device (100) comprising a layer (106) of blue phase liquid crystal in the path of the optical signal; and applying a dynamically varying spatial pattern of voltages across the layer (106) of blue phase liquid crystal, thereby causing the refractive index of the layer (106) of blue phase liquid crystal to vary according the dynamically varying spatial pattern.