The present application relates to an optical device and a use thereof. The optical device of the present application is a member in which transmittance can vary depending on whether or not an external action is present, and has excellent durability.

Provided are a smart window, a sliding smart window, a smart window for a vehicle, a sun visor for a vehicle, a smart window device, and a head-mounted smart window device which have maximized user convenience.

Provided are a smart window, a sliding smart window, a smart window for a vehicle, a sun visor for a vehicle, a smart window device, and a head-mounted smart window device which have maximized user convenience.

Disclosed are light glare reducing apparatuses and related methods. A light glare reducing apparatus includes a first polarized body, a second polarized body, and a movable coupling that attaches the second polarized body to the first polarized body with the second polarized body at least partially overlapping the first polarized body. The first polarized body includes a first polarized material that is optically polarized in a first direction relative to the first polarized body. The second polarized body includes a second polarized material that is optically polarized in a second direction relative to the second polarized body. The movable coupling is configured to enable the second polarized body to move relative to the first polarized body to change an angle of the second direction relative to the first direction.

Disclosed are light glare reducing apparatuses and related methods. A light glare reducing apparatus includes a first polarized body, a second polarized body, and a movable coupling that attaches the second polarized body to the first polarized body with the second polarized body at least partially overlapping the first polarized body. The first polarized body includes a first polarized material that is optically polarized in a first direction relative to the first polarized body. The second polarized body includes a second polarized material that is optically polarized in a second direction relative to the second polarized body. The movable coupling is configured to enable the second polarized body to move relative to the first polarized body to change an angle of the second direction relative to the first direction.

Glass which has been chemically treated to make it transition from clear to tinted or opaque as temperature increases, and transition back to clear when temperature falls. The glass is manufactured for use in commercial and non-commercial buildings, and for use in vehicles, planes, boats, or other machinery The glass can be chemically treated on an entire pane or treated on only a portion of a single pane.

Glass which has been chemically treated to make it transition from clear to tinted or opaque as temperature increases, and transition back to clear when temperature falls. The glass is manufactured for use in commercial and non-commercial buildings, and for use in vehicles, planes, boats, or other machinery The glass can be chemically treated on an entire pane or treated on only a portion of a single pane.

An aperture structure for a substrate for an optical device includes an optical cavity layer, a light absorbing layer, and a blocking layer. The optical cavity layer includes a dielectric material and is characterized by a refractive index of about 1.4 or greater, as measured at a wavelength of 550 nm. The light absorbing layer includes a metal or a metal alloy and is characterized by an extinction coefficient k of at least 1, as measured at a wavelength of 550 nm. The blocking layer includes a metal or a metal alloy and is characterized by an optical density of at least 3 at each wavelength of light in the range from 400 nm to 700 nm. The aperture structure includes a reflectance of less than 5% at each wavelength of light in the range from 400 nm to 700 nm, as measured through the substrate.

A sensing system for a vehicle includes a sensor disposed at a vehicle and a control that includes a processor for processing sensor data captured by the sensor. A first polarizer is disposed in a light emitting path of at least one light source of the vehicle and a second polarizer is disposed in a light receiving path of the sensor. The second polarizer has an opposite-handed polarization configuration relative to the first polarizer. Some of the polarized light as polarized by the first polarizer impinges precipitation present in the field of sensing of the sensor and returns toward the sensor as refracted-reflected light. The second polarizer attenuates the refracted-reflected light and allows light reflected from objects present in the sensor's field of sensing to pass through to the sensor. The control, responsive to processing of captured sensor data, detects objects in the field of sensing of the sensor.

A sensing system for a vehicle includes a sensor disposed at a vehicle and a control that includes a processor for processing sensor data captured by the sensor. A first polarizer is disposed in a light emitting path of at least one light source of the vehicle and a second polarizer is disposed in a light receiving path of the sensor. The second polarizer has an opposite-handed polarization configuration relative to the first polarizer. Some of the polarized light as polarized by the first polarizer impinges precipitation present in the field of sensing of the sensor and returns toward the sensor as refracted-reflected light. The second polarizer attenuates the refracted-reflected light and allows light reflected from objects present in the sensor's field of sensing to pass through to the sensor. The control, responsive to processing of captured sensor data, detects objects in the field of sensing of the sensor.