Improved corners for overhead frames having primary and secondary fasteners that are located within the distal rectangular periphery of alpha oriented overhead frame components so that the width of bundled overhead frames is reduced; protrusions leading to snagging are eliminated; obstructions to the preferred, industry-wide, disassembled frame orientation are precluded; and frame components may be rigidly bundled into the alpha orientation without the wasteful and time-consuming use of temporary materials.

Improved corners for overhead frames having primary and secondary fasteners that are located within the distal rectangular periphery of alpha oriented overhead frame components so that the width of bundled overhead frames is reduced; protrusions leading to snagging are eliminated; obstructions to the preferred, industry-wide, disassembled frame orientation are precluded; and frame components may be rigidly bundled into the alpha orientation without the wasteful and time-consuming use of temporary materials.

A polarizing beam splitter assembly for directing image light on an input path into multiple exit light paths comprises multiple prisms with edges that meet to form a seam. The polarizing beam splitter assembly includes a diffracting element prior to the seam in the input light path. The diffracting element comprises a geometry that performs at least one of blocking a portion of the image light and scattering a portion of the image light.

Improved corners for overhead frames having primary and secondary fasteners that are located within the distal rectangular periphery of alpha oriented overhead frame components so that the width of bundled overhead frames is reduced; protrusions leading to snagging are eliminated; and the preferred, industry-wide, disassembled frame orientation is maintained.

Improved corners for overhead frames having primary and secondary fasteners that are located within the distal rectangular periphery of alpha oriented overhead frame components so that the width of bundled overhead frames is reduced; protrusions leading to snagging are eliminated; and the preferred, industry-wide, disassembled frame orientation is maintained.

The present application relates to systems, methods, and computer-readable media for deterring video piracy. In aspects, a light source generates an infrared (IR) light spectrum that is projected onto a surface, such as a movie theatre screen. The IR light spectrum may form an watermark that is invisible to members of the audience that are viewing video content projected onto the surface, but that obfuscates at least a portion of video content captured by video recording device that is being used to capture a recording of the video content projected onto the surface. In aspects, a frequency of the IR light spectrum emitted by the light source may be periodically modified to make it more difficult to filter out the watermark.

The present application relates to systems, methods, and computer-readable media for deterring video piracy. In aspects, a light source generates an infrared (IR) light spectrum that is projected onto a surface, such as a movie theatre screen. The IR light spectrum may form an watermark that is invisible to members of the audience that are viewing video content projected onto the surface, but that obfuscates at least a portion of video content captured by video recording device that is being used to capture a recording of the video content projected onto the surface. In aspects, a frequency of the IR light spectrum emitted by the light source may be periodically modified to make it more difficult to filter out the watermark.

A projection system and a control method of a driving current thereof are provided. A power supply of an illumination module provides the driving current to drive a light source to provide an illumination beam. A filter wheel receives the illumination beam and filtered beams are generated. The illumination beam passes through the filter wheel during a first period and a first filtered beam is generated. The illumination beam passes through the filter wheel during a second period and a second filtered beam is generated. The filtered beams include the first filtered beam, the second filtered beam, and an intermediate filtered beam generated during an intermediate period between the first and second periods. A control device controls the power supply to continuously provide the driving current from the first period, through the intermediate period, to the second period.

To easily specify the position of a defect in a separator, a method for producing a separator original sheet (12b) includes the steps of: forming a separator original sheet (12b) including a separator original sheet (12c) and a heat-resistant layer coated on the separator original sheet (12c); detecting a defect (D) in the separator original sheet (12b); and recording information including information on a position of the defect (D) which position is a position in the width direction of the separator original sheet (12b).

A video is superimposed on an object in order that the object will be perceived as if the object were given a motion. This video is a video including a luminance motion component corresponding to a motion given to the object.