Abstract: The present disclosure provides a display system. The display system includes a backlight configured to emit substantially collimated polarized light from an emission surface thereof. The emitted polarized light is polarized along a polarization direction. The display system further includes a display panel configured to receive an illumination light and form an image. The display system further includes a grating system substantially coextensive in length and width with the display panel and the emission surface. The grating system includes a plurality of substantially parallel elongated features extending along an in-plane first direction and arranged along an orthogonal in-plane second direction. The grating system is configured to receive and transmit an incident polarized light as a first transmitted light having different first and second polarization states in response to different respective first and second signals applied to the grating system.

Abstract: A loading device and method of using same with a rifle having a fixed magazine are disclosed. The loading device may comprise a housing having a channel, a plunger slideably disposed within the channel, and a spout extending away from the housing. The spout is configured to fit within an ejection port of the rifle. The plunger may include an articulating arm extending away from one end of the plunger, wherein the arm includes a plug disposed about one end for pushing ammunition cartridges into the fixed magazine. The loading device advantageously permits efficient and rapid reloading of ammunition into the fixed magazine.

Abstract: A loading device and method of using same with a rifle having a fixed magazine are disclosed. The loading device may comprise a housing having a channel, a plunger slideably disposed within the channel, and a spout extending away from the housing. The spout is configured to fit within an ejection port of the rifle. The plunger may include an articulating arm extending away from one end of the plunger, wherein the arm includes a plug disposed about one end for pushing ammunition cartridges into the fixed magazine. The loading device advantageously permits efficient and rapid reloading of ammunition into the fixed magazine.

Abstract: A loading device and method of using same with a rifle having a fixed magazine are disclosed. The loading device may comprise a housing having a channel, a plunger slideably disposed within the channel, and a spout extending away from the housing. The spout is configured to fit within an ejection port of the rifle. The plunger may include an articulating arm extending away from one end of the plunger, wherein the arm includes a plug disposed about one end for pushing ammunition cartridges into the fixed magazine. The loading device advantageously permits efficient and rapid reloading of ammunition into the fixed magazine.

Abstract: A loading device and method of using same with a rifle having a fixed magazine are disclosed. The loading device may comprise a housing having a channel, a plunger slideably disposed within the channel, and a spout extending away from the housing. The spout is configured to fit within an ejection port of the rifle. The plunger may include an articulating arm extending away from one end of the plunger, wherein the arm includes a plug disposed about one end for pushing ammunition cartridges into the fixed magazine. The loading device advantageously permits efficient and rapid reloading of ammunition into the fixed magazine.

Abstract: A tear removal aid and method improve the removal, more particularly manual removal, of a length of adhesive tape which has a textile carrier. The textile carrier has a two-dimensionally extended body having a flexural strength which corresponds at least to the flexural strength of a steel sheet having a thickness of 0.25 mm, preferably 0.50 mm, more preferably of 1.00 mm.

Abstract: A door frame is prefabricated at remote construction sites and is installed into wall openings without requiring substantial on-site fittings, moldings, trims, and attachments. The door frame includes a header jamb and header grooves. A header scribe strip is fitted to and disposed in one of the header grooves. Header spring means are disposed in said header groove and are pressing the header scribe strip outwardly. Header plate means are pivotally attached to the side of the frame facing the opening face of the wall opening and disposed such as to assume a first locking position. A first and a second side jamb each have a first end attached to the header jamb and have a first and a second side groove. A first side scribe strip and a second side scribe strip are in each case fitted to and disposed in one of the respective side grooves. First and second side spring means are disposed in each case in the respective side grooves and press the respective side scribe strip outwardly.