A semiconductor laser device comprises an active layer having a main extension plane, a first cladding layer and a second cladding layer where the active layer is arranged between the first and second cladding layer in a direction perpendicular to the main extension plane, at least one first emission region and at least one second emission region arranged next to each other in a direction parallel to the main extension plane, a light-outcoupling surface parallel to the main extension direction and arranged on a side of the second cladding layer opposite to the active layer, and a photonic crystal layer arranged in the first cladding layer or in second cladding layer. The photonic crystal layer may include a first photonic crystal structure in the first emission region and a second photonic crystal structure in the second emission region where the first and the second photonic crystal structures are different.

An optical system for displaying a virtual image to a viewer includes stacked integral first reflective polarizer and integral second reflective polarizer, a display, and a mirror. For substantially normally incident light: for at least one visible wavelength in a first wavelength range, the first reflective polarizer reflects at least 60% of the incident light having a first polarization state and transmits at least 60% of the incident light having an orthogonal second polarization state, and the second reflective polarizer transmits at least 60% of the incident light for each of the first and second polarization states; and for at least one infrared wavelength in a second wavelength range, the first reflective polarizer reflects at least 60% of the incident light having the first polarization state and transmits at least 60% of the incident light having the second polarization state, and the second reflective polarizer reflects at least 60% of the incident light having the second polarization state and transmits at least 20% of the light having the first polarization state.

A vehicle mirror includes: an image display section that displays an image with first polarized light; and a mirror section disposed on an image output side of the image display section, wherein, in order from the image display section side, the mirror section includes, for example, a first polarizer that transmits the first polarized light and reflects second polarized light, a polarization controller that controls a polarization state of light, and a second polarizer that transmits the first polarized light and absorbs the second polarized light, wherein the polarization controller includes a liquid crystal layer, a first electrode being set on a first polarizer side of the liquid crystal layer, and a second electrode being set on a second polarizer side of the liquid crystal layer, and wherein at least one of the first electrode and the second electrode is formed with multiple area electrodes.

An electronic device is provided. The electronic device includes a cover plate, a main board, an iris camera, an infrared lamp, a polarizing member. The iris camera is coupled with the main board and arranged on a side of the main board facing the cover plate. The infrared lamp is coupled with the main board and arranged on the side of the main board facing the cover plate. The infrared lamp is spaced apart from the iris camera. The polarizing member is arranged between the infrared lamp and the cover plate to reduce an angle of infrared light emitted from the infrared lamp.

An optical device is disclosed herein. In some embodiments, an optical device includes a first base film and a second base film, a light modulation layer existing between the first and second base films, electrode layers formed on surfaces of the first and second base films that face the light modulation layer, wherein each electrode layer comprises a first region capable of applying an electric field to the light modulation layer, and a second region connecting the electrode layer to an external power source, wherein the second region on the first base film and the second region on the second base film face each other, and an insulating layer disposed between the facing second regions of the first and second base films. The optical device is capable of preventing defects such as short circuits even when an external power source has been connected in an encapsulated structure.

Provided is a vehicle interior structure including a windshield, an interior member, and a camera, in which an image of the reflection of the interior member on the windshield is hardly taken with the camera. The vehicle interior structure of the present invention includes; a windshield; an interior member arranged below the windshield; and a camera arranged behind the windshield. A polarizing plate is arranged between the windshield and the camera, and the polarizing plate is arranged so as to transmit a larger quantity of P-polarized light than that of S-polarized light.

A transmittance-variable device is provided in the present application. The present application provides a transmittance-variable device, which can be applied to various applications without causing problems such as a crosstalk phenomenon, a rainbow phenomenon or a mirroring phenomenon, while having excellent transmittance-variable characteristics.

An optical device is provided in the present application. The present application provides an optical device that may prevent defects such as short circuits even when an external power source has been connected in an encapsulated structure.

A wearable display system includes an eyepiece stack having a world side and a user side opposite the world side. During use, a user positioned on the user side views displayed images delivered by the wearable display system via the eyepiece stack which augment the user's field of view of the user's environment. The system also includes an optical attenuator arranged on the world side of the of the eyepiece stack, the optical attenuator having a layer of a birefringent material having a plurality of domains each having a principal optic axis oriented in a corresponding direction different from the direction of other domains. Each domain of the optical attenuator reduces transmission of visible light incident on the optical attenuator for a corresponding different range of angles of incidence.

A polarizing rotation device including a rotation shaft, a driving element and a polarizing element is provided. The driving element is configured to drive the rotation shaft to rotate. The polarizing element is connected to the rotation shaft and is disposed on a transmission path of at least one beam, where the driving element is configured to drive the polarizing element to rotate sequentially while taking the rotation shaft as a rotation central axis, and when the polarizing element is rotated, the at least one beam penetrates through the polarizing element, and the at least one beam penetrating through the polarizing element has different polarization states at different time. Therefore, when a projection device is in a polarized stereoscopic mode, a color or brightness of a display image is uniform, and a user observes a 3D display image with good uniformity.