There is provided a transparent screen which is capable of separating a direction where a hot spot is observed and a direction where a bright video is allowed to be observed, and establishing a direction where a video is allowed to be wholly brightly observed. A transparent screen includes a first transparent layer, a reflective layer reflecting projected video light, a second transparent layer disposed opposite to the first transparent layer with respect to the reflective layer so as to make a background visible therethrough; wherein the reflective layer has a plurality of slant reflective surfaces, each of the slant reflective surfaces being slant to a reference surface that is a surface of the first transparent layer opposite to the reflective layer; wherein each of the slant reflective surfaces is provided with a concavo-convex and is formed in a stripe shape when seen from a normal direction of the reference surface; and wherein the slant reflective surfaces are disposed so as to have angles to the reference surface, the angle changing with random variations in of range with respect to a certain central angle.

An addressable display system configured for use in a mounting adapter configured to mount a personal electronic device (PED) on an aircraft includes a transparent surface configured to overlay the display surface of a PED when the PED is mounted in the mounting adapter wherein the transparent surface includes a region that is uniformly coated with a coating layer that when activated with a select excitation wavelength is configured to emit visible light to annunciate a message indicating a problem with an image displayed on a PED display; a lighting source configured to provide light in at an excitation wavelength; a MEMS (microelectromechanical systems) scanner module that is controllable to write desired symbology for annunciation at different addressable locations on the transparent surface; and an imaging device configured to capture an image of the PED display for an integrity check of data displayed on the PED display.

An addressable display system configured for use in a mounting adapter configured to mount a personal electronic device (PED) on an aircraft includes a transparent surface configured to overlay the display surface of a PED when the PED is mounted in the mounting adapter wherein the transparent surface includes a region that is uniformly coated with a coating layer that when activated with a select excitation wavelength is configured to emit visible light to annunciate a message indicating a problem with an image displayed on a PED display; a lighting source configured to provide light in at an excitation wavelength; a MEMS (microelectromechanical systems) scanner module that is controllable to write desired symbology for annunciation at different addressable locations on the transparent surface; and an imaging device configured to capture an image of the PED display for an integrity check of data displayed on the PED display.

A transparent projection screen and a manufacturing method. The transparent projection screen is for receiving projection light and transmitting ambient light and comprises a first substrate layer, a Fresnel structure layer, a surface diffusion layer, a nano metal plating layer, and a binding adhesive layer. The Fresnel structure layer is disposed on the first substrate layer and comprises a prism surface. The surface diffusion layer is disposed on a portion of the prism surface. The nano metal plating layer is disposed on the surface diffusion layer. The binding adhesive layer is disposed on the nano metal plating layer and fills and levels the prism surface. The projection light passes the first substrate layer and is incident on the prism surface and then reflected thereby. The ambient light passes the binding adhesive layer, the nano metal plating layer, the surface diffusion layer and the first substrate layer, and is emitted.

A transparent projection screen and a manufacturing method. The transparent projection screen is for receiving projection light and transmitting ambient light and comprises a first substrate layer, a Fresnel structure layer, a surface diffusion layer, a nano metal plating layer, and a binding adhesive layer. The Fresnel structure layer is disposed on the first substrate layer and comprises a prism surface. The surface diffusion layer is disposed on a portion of the prism surface. The nano metal plating layer is disposed on the surface diffusion layer. The binding adhesive layer is disposed on the nano metal plating layer and fills and levels the prism surface. The projection light passes the first substrate layer and is incident on the prism surface and then reflected thereby. The ambient light passes the binding adhesive layer, the nano metal plating layer, the surface diffusion layer and the first substrate layer, and is emitted.

In one aspect, a method includes the step of A mobile projection system; the system comprising: a hermetically sealed base unit configured to be releasably attached to an automobile; a microprocessor configured to receive a plurality of projectable images from a remote server over a wireless network; and a remote server configured to store a plurality of selected images over a period of time; a projection means configured to project a selected image through a translucent lens.

In one aspect, a method includes the step of A mobile projection system; the system comprising: a hermetically sealed base unit configured to be releasably attached to an automobile; a microprocessor configured to receive a plurality of projectable images from a remote server over a wireless network; and a remote server configured to store a plurality of selected images over a period of time; a projection means configured to project a selected image through a translucent lens.

A computer simulation may include a tabletop game in which multiple players each wearing a head-mounted display (HMD) view a tabletop projector housing with a different aspect of the game for each side of the housing. A projector assembly may be inside the housing. The housing may be a screen that unfolds into cube, and the projector projects light in all four screens so that everyone gets different perspective. A player may be enabled to switch between perspectives for different player's angles.

A computer simulation may include a tabletop game in which multiple players each wearing a head-mounted display (HMD) view a tabletop projector housing with a different aspect of the game for each side of the housing. A projector assembly may be inside the housing. The housing may be a screen that unfolds into cube, and the projector projects light in all four screens so that everyone gets different perspective. A player may be enabled to switch between perspectives for different player's angles.

A laser light source depolarizer includes a laser light source, a light angle adjusting element, a birefringent crystal, and an integration rod. The laser light source is configured to emit a laser light. The light angle adjusting element is configured to change the diffusion angle of the laser light. The light angle adjusting element is disposed between the laser light source and the birefringent crystal. The birefringent crystal is disposed between the light angle adjusting element and the integration rod, and the birefringent crystal is configured to break the polarity of the laser light.