Abstract: A photonic crystal surface-emitting laser device includes a substrate, a light emitting layer located on a surface of the substrate, a photonic crystal layer located on a side of the light emitting layer facing away from the substrate, and a metasurface located on a side of the substrate facing away from the photonic crystal layer. The light emitting layer is configured to generate photons. The photons incident into the photonic crystal layer generate laser light through a vibration on Bragg diffraction. The metasurface includes a base and a plurality of pillars arranged on a surface of the base at intervals, at least two of the plurality of pillars have different shapes and/or different sizes. The metasurface is configured to receiving the laser light, diffracting the laser light and then emitting the laser light. An optical system having the photonic crystal surface-emitting laser device is also provided.

Abstract: A photonic crystal surface-emitting laser includes a light emitting module and a driving module. The light emitting module includes a photonic crystal layer, an active light emitting layer on a side of the photonic crystal layer, a first electrode on a side of the active light emitting layer facing away from the photonic crystal layer, and a second electrode partially on the side of the active light emitting layer facing away from the photonic crystal layer. The driving module makes electrical contact with surfaces of the first electrode and the second electrode facing away from the photonic crystal layer. The driving module outputs driving signals to the first electrode and the second electrode to drive the active light emitting layer to generate photons. The photons are incident into the photonic crystal layer to generate a laser light through oscillation on Bragg diffraction. An optical system is also disclosed.

Abstract: An MICRO LED array on an electronic device is arranged on the same side as a front lens of the device. The MICRO LED array includes a display area and a supplemental lighting area. The display area displays images or text, and the light supplementing area provides illumination and/or supplemental light of the scene in front of the device. A sensor of the device senses characteristics of current shooting environment and a controller controls an adjusting unit to adjust the display area and the light supplementing area according to the sensed characteristics of the current shooting environment and certain stored parameters, to achieve optimal lighting and coloration in images of the scene captured by the device.

Abstract: A lighting adjusting method applied to a light-emitting electronic device includes a distance sensor includes obtaining distance data to objects or human beings being present or not present. Once a first lighting power level is determined for at least one lighting device according to the distance data and associated power level required, the at least one lighting device is controlled to adjust the level of lighting as circumstances change.

Abstract: A lighting adjusting method applied to a light-emitting electronic device includes a distance sensor includes obtaining distance data to objects or human beings being present or not present. Once a first lighting power level is determined for at least one lighting device according to the distance data and associated power level required, the at least one lighting device is controlled to adjust the level of lighting as circumstances change.

Abstract: A dynamic map-type graphic interface includes a number of user interface (UI) components. Each UI component is associated with one corresponding application program of the electronic device. The dynamic map-type graphic interface is a single-layer graphic interface made up of the UI components spliced together and around the center of the dynamic map-type graphic interface. A selection box to select the UI components is controlled to determine the different UI components of the dynamic map-type graphic interface via the input unit.

Abstract: A dynamic map-type graphic interface includes a number of user interface (UI) components. Each UI component is associated with one corresponding application program of the electronic device. The dynamic map-type graphic interface is a single-layer graphic interface made up of the UI components spliced together and around the center of the dynamic map-type graphic interface. The arrangement of the UI components is dynamically alterable according to operating times of the application program operated under a predetermined state parameter value within a predetermined time period.

Abstract: A dynamic map-type graphic interface includes a number of user interface (UI) components. Each UI component is associated with one corresponding application program of the electronic device. The dynamic map-type graphic interface is a single-layer graphic interface made up of the first groups spliced together and centered around a center of the dynamic map-type graphic interface. Each of the first group comprising at least one user interface (UI) component spliced together.

Abstract: A dynamic map-type graphic interface includes a number of user interface (UI) components. Each UI component is associated with one corresponding application program of the electronic device. The dynamic map-type graphic interface is a single-layer graphic interface made up of the UI components spliced together and around the center of the dynamic map-type graphic interface. A selection box to select the UI components is controlled to determine the different UI components of the dynamic map-type graphic interface via the input unit.

Abstract: A dynamic map-type graphic interface includes a number of user interface (UI) components. Each UI component is associated with one corresponding application program of the electronic device. The dynamic map-type graphic interface is a single-layer graphic interface made up of the UI components spliced together and around the center of the dynamic map-type graphic interface. The arrangement of the UI components is dynamically alterable according to operating times of the application program operated under a predetermined state parameter value within a predetermined time period.

Abstract: A dynamic map-type graphic interface includes a number of user interface (UI) components. Each UI component is associated with one corresponding application program of the electronic device. The dynamic map-type graphic interface is a single-layer graphic interface made up of the UI components spliced together and centered around a center of the dynamic map-type graphic interface. A partial region of the dynamic map-type graphic interface corresponding to a size of a display unit of the electronic device is displayed on the display unit and centered around a display center of the dynamic map-type graphic interface.

Abstract: A dynamic map-type graphic interface includes a number of user interface (UI) components. Each UI component is associated with one corresponding application program of the electronic device. The dynamic map-type graphic interface is a single-layer graphic interface made up of the UI components spliced together and centered around a center of the dynamic map-type graphic interface. A partial region of the dynamic map-type graphic interface corresponding to a size of a display unit of the electronic device is displayed on the display unit and centered around a display center of the dynamic map-type graphic interface.

Abstract: The present invention provides an optical device having inhomogeneous polarization selectivity. The optical device includes a transparent substrate having a surface, a first optical element and a second optical element. The first and the second elements are disposed on the surface. The first optical element has a first polarization selectivity at least within a full visible frequency domain. The second optical element has a second polarization selectivity at least within a full visible frequency domain. The first and the second polarization selectivities have different orientations.