According to examples, a substrate may be moved through a magnetic field, in which the substrate includes a fluid carrier containing magnetically-orientable flakes. The magnetic field may influence the magnetically-orientable flakes to be respectively oriented in one of multiple orientations. In addition, during movement of the substrate through the magnetic field, radiation may be applied onto a plurality of selected portions of the fluid carrier through at least one opening in a mask to cure the fluid carrier at the plurality of selected portions and fix the magnetically-orientable flakes in the plurality of selected portions at the respective angular orientations as influenced by the magnetic field.

Described herein is a construction comprising a microsphere layer comprising a plurality of microspheres, wherein the microspheres comprise glass, ceramic, and combinations thereof; a bead bonding layer, wherein the plurality of microspheres is partially embedded in the bead bonding layer forming a first surface comprising exposed microspheres, wherein the plurality of microspheres on the first surface are truncated. Also disclosed herein are articles comprising the construction and methods of making thereof.

The disclosure provides a light-adjusting glass, including an outer light transmissive layer and an inner light transmissive layer, a microstructure layer bonded to or disposed on an inner surface of the outer light transmissive layer and provided with a reflective microstructure, a sealing member bonded to an end portion of the outer light transmissive layer and an end portion of the inner light transmissive layer, the sealing member, the microstructure layer and the inner light transmissive layer enclosing a space having a predetermined volume. A predetermined amount of a first substance is disposed within the space. The disclosure also provides a method for preparing a light-adjusting glass. The light-adjusting glass of the present disclosure does not require an electric field to control the light-adjusting.

The disclosure provides a light-adjusting glass, including an outer light transmissive layer and an inner light transmissive layer, a microstructure layer bonded to or disposed on an inner surface of the outer light transmissive layer and provided with a reflective microstructure, a sealing member bonded to an end portion of the outer light transmissive layer and an end portion of the inner light transmissive layer, the sealing member, the microstructure layer and the inner light transmissive layer enclosing a space having a predetermined volume. A predetermined amount of a first substance is disposed within the space. The disclosure also provides a method for preparing a light-adjusting glass. The light-adjusting glass of the present disclosure does not require an electric field to control the light-adjusting.

A gimmick expression medium producing method forms a gimmick expression medium 300. The gimmick expression medium 300 includes a retroreflective medium 1. A printing medium 301 placed on the retroreflective medium 1 includes a light-transmission layer 302. A gimmick print 303 which varies color of reflective light of the retroreflective medium 1 to produce a gimmick effect is printed on the light-transmission layer 302. The printing medium 301 is provided with a light-blocking layer 304 which partially blocks reflective light reflected by the retroreflective medium 1. The light-blocking layer 304 is composed of a white printing layer, and a reflection picture print 305 is printed on the light-blocking layer 304. The reflection pattern printing 305 and the gimmick print 303 are placed in adjacent to each other using a stripe-shaped (or dot-shaped) lattice pattern 306, printing which can be seen on a printed matter under normal illumination and printing which can be seen under light source such as flash light can be printed at one time (one-pass) by the same printer.

A gimmick expression medium producing method forms a gimmick expression medium 300. The gimmick expression medium 300 includes a retroreflective medium 1. A printing medium 301 placed on the retroreflective medium 1 includes a light-transmission layer 302. A gimmick print 303 which varies color of reflective light of the retroreflective medium 1 to produce a gimmick effect is printed on the light-transmission layer 302. The printing medium 301 is provided with a light-blocking layer 304 which partially blocks reflective light reflected by the retroreflective medium 1. The light-blocking layer 304 is composed of a white printing layer, and a reflection picture print 305 is printed on the light-blocking layer 304. The reflection pattern printing 305 and the gimmick print 303 are placed in adjacent to each other using a stripe-shaped (or dot-shaped) lattice pattern 306, printing which can be seen on a printed matter under normal illumination and printing which can be seen under light source such as flash light can be printed at one time (one-pass) by the same printer.

The disclosure relates to an optical security feature that is based on a single axis alignment of mirrors or facets in a structured surface that forms a micro mirror array. In an aspect, a device is described that includes a reflecting structure on a first layer, where the reflecting structure has a top surface with multiple embossed facets arranged in a spatial orientation that produces a flat ring optical effect upon incidence of light. In another aspect, a method for making the device is described that provides a reflecting layer and produces the reflecting structure on the reflecting layer with multiple facets arranged in the spatial orientation to produce the flat ring optical effect. In yet another aspect, an apparatus for making the device is described that includes a pressing device and a stamping device to transfer a pattern of the reflecting structure to a reflecting material.

The present specification relates to a decorative member comprising a base and inorganic layers comprising a first light absorption layer, a light reflection layer, and a second light absorption layer sequentially provided on the base, in which ΔE.sub.12 indicated in Equation 1 is 1 or more, and a method of manufacturing the decorative member.

Provided is a processing method for a multi-row, multi-column flat lens with an equivalent negative refractive index, which includes: performing photoresist coating, masking and exposure on the photolithography surface; removing photoresist in an unexposed block, and forming a rectangular groove; coating a surface of an exposed block and all surfaces of the rectangular groove with a protective layer, and then coating a side surface of the rectangular groove with a reflective film; removing the protective layer on the surface of the exposed block and the bottom surface of the rectangular groove, then filling up the groove with a filling material, and further processing the front and rear surfaces of the parallel plate in such a manner that a parallel misalignment between the front and rear surfaces thereof is smaller than 1′; and adding a protective window sheet on each of the front and rear surfaces of the new parallel plate.

Described are two mirror scanning projectors employing a collimated laser beam directed to a first mirror that scans in one direction, an optical relay system, and a second mirror that scans in a perpendicular direction from the first mirror to provide two dimensional scanning of the laser beam.