An optical system is provided that includes a correction portion including one or more spatially varying polarizers. A first spatially varying polarizer of the one or more spatially varying polarizers has a first control input configured to receive a first control signal indicating whether the first spatially varying polarizer is to be active or inactive. When active, the first spatially varying polarizer is operative to provide a first optical correction on light passing through the correction portion. The optical system includes a controller configured to determine whether to implement the first optical correction on the light passing through the correction portion and in response to determining to implement the first optical correction on the light passing through the correction portion, output the first control signal indicating the first spatially varying polarizer is to be active. Additional spatially varying polarizers may be controlled to provide additional or alternative optical corrections.

An optical lens device includes an optical substrate layer, an optical polarization layer and a miniature surface structure. The optical substrate layer has a first surface and a second surface and rays of light passes through the optical substrate layer. The optical polarization layer is provided on the first surface or the second surface of the optical substrate layer. The miniature surface structure is physically processed to form the optical polarization layer and provides a characteristic of optical polarization in the optical polarization layer. The miniature surface structure of the optical polarization layer provides an optical polarization effect to the rays of light while passing through it.

A scleral contact lens has a core containing an optical filter. The core and/or the optical filter may comprise oxygen impermeable material, such that an overall oxygen permeability of the core is insufficient to oxygenate a user's cornea when wearing the contact lens. To provide oxygenation to the user's cornea, the contact lens further comprises an outer covering, and an inner covering, each corresponding to a thin layer of gas-permeable material shaped to form a respective manifold between the covering and the core. Oxygen from an outside environment passes through the outer covering to reach the outer manifold, through an air path formed within the core to the inner manifold, and through the inner covering to reach the cornea of the user's eye.

A scleral contact lens has a core containing an optical filter. The core and/or the optical filter may comprise oxygen impermeable material, such that an overall oxygen permeability of the core is insufficient to oxygenate a user's cornea when wearing the contact lens. To provide oxygenation to the user's cornea, the contact lens further comprises an outer covering, and an inner covering, each corresponding to a thin layer of gas-permeable material shaped to form a respective manifold between the covering and the core. Oxygen from an outside environment passes through the outer covering to reach the outer manifold, through an air path formed within the core to the inner manifold, and through the inner covering to reach the cornea of the user's eye.

Some embodiments provide a lens including a lens body and an optical filter configured to attenuate visible light in a plurality of spectral bands. Each of the plurality of spectral bands can include an absorptance peak with a spectral bandwidth, a maximum absorptance, and an integrated absorptance peak area within the spectral bandwidth. An attenuation factor obtained by dividing the integrated absorptance peak area within the spectral bandwidth by the spectral bandwidth of the absorptance peak can be greater than or equal to about 0.8 for the absorptance peak in each of the plurality of spectral bands.

Some embodiments provide a lens including a lens body and an optical filter configured to attenuate visible light in a plurality of spectral bands. Each of the plurality of spectral bands can include an absorptance peak with a spectral bandwidth, a maximum absorptance, and an integrated absorptance peak area within the spectral bandwidth. An attenuation factor obtained by dividing the integrated absorptance peak area within the spectral bandwidth by the spectral bandwidth of the absorptance peak can be greater than or equal to about 0.8 for the absorptance peak in each of the plurality of spectral bands.

Apparatus are described herein related to augmenting human vision by means of adaptive polarization filter grids. A preferred embodiment is described as smart sunglasses, realized as see through head mountable device (HMD) configured to reduce glare originating from polarized light. Each eyeglass of the HMD is associated with a grid comprising a plurality of dynamically configurable polarization filters placed in the path of the light. A polarization analyzer module analyzes the polarization characteristics of a field of view and performs an optimization calculation. The polarization analyzer controls the said grid via a controller module in such a way that the filter state of each grid element can be addressed separately. The grid of polarization filters causes the polarization characteristics of the incident light to be adapted in such a way as to reduce glare and/or to provide a user of the said head mountable device with an enhanced visual perception of the field of view. The user of the described head mountable device has the option of selection between a plurality of polarization enhancement modes, such as horizontal or vertical polarization filtering only or a hybrid mode combining both horizontal and vertical polarization filtering on an individual basis for each grid element. Additionally smart window and smart mirror embodiments of the described adaptive polarization filter grids are introduced.

Apparatus are described herein related to augmenting human vision by means of adaptive polarization filter grids. A preferred embodiment is described as smart sunglasses, realized as see through head mountable device (HMD) configured to reduce glare originating from polarized light. Each eyeglass of the HMD is associated with a grid comprising a plurality of dynamically configurable polarization filters placed in the path of the light. A polarization analyzer module analyzes the polarization characteristics of a field of view and performs an optimization calculation. The polarization analyzer controls the said grid via a controller module in such a way that the filter state of each grid element can be addressed separately. The grid of polarization filters causes the polarization characteristics of the incident light to be adapted in such a way as to reduce glare and/or to provide a user of the said head mountable device with an enhanced visual perception of the field of view. The user of the described head mountable device has the option of selection between a plurality of polarization enhancement modes, such as horizontal or vertical polarization filtering only or a hybrid mode combining both horizontal and vertical polarization filtering on an individual basis for each grid element. Additionally smart window and smart mirror embodiments of the described adaptive polarization filter grids are introduced.

A spectacle lens includes an activable optical filter having at least an electrochromic device and being configured to be actively switched between at least three configurations. In the first configuration, the activable optical filter is uniform. In the second configuration, the activable optical filter attenuates selectively light from a localized light source. In the third configuration, the activable optical filter is uniform. Furthermore, the chromaticity difference ΔChrom between each of the configurations is smaller than or equal to 20.

A spectacle lens includes an activable optical filter having at least an electrochromic device and being configured to be actively switched between at least three configurations. In the first configuration, the activable optical filter is uniform. In the second configuration, the activable optical filter attenuates selectively light from a localized light source. In the third configuration, the activable optical filter is uniform. Furthermore, the chromaticity difference ΔChrom between each of the configurations is smaller than or equal to 20.