Abstract: Optical devices having multi-functional coatings.

Abstract: Optical devices having multi-functional coatings.

Abstract: A die and counter die system for impressing a relief pattern onto a substrate, including a male die film and at least one female die. The female die includes a female-die contact surface including at least one cavity defining the relief pattern. The male die film includes a flexible male-die contact surface which is featureless in a region thereof opposing the relief pattern on the at least one female die. The system further includes a compression mechanism adapted, when the substrate is disposed between the male die contact surface and the female die contact surface, to move the male die film and the at least one female die towards one another so as to impress the relief pattern on the substrate.

Abstract: A die and counter die system for impressing a relief pattern onto a substrate, including at least one male die including a contact surface and defining a relief pattern, a compressible counter film including a base layer, a contact layer disposed opposite the contact surface of the at least one male die and spaced therefrom, and a compressible layer disposed between the base layer and the contact layer and attached thereto. The contact layer is featureless in a region thereof opposing the relief pattern on the at least one male die. The compressible counter film has a compressibility, in a direction perpendicular to a broad face of the compressible counter film, in the range of 5-30% at 1.35 MPa. The system further includes a compression mechanism adapted to move the at least one male die and the compressible counter film towards one another in an operative mode.

Abstract: Die and counter-die systems, polymeric rule dies for such systems, and polymeric formulations suitable for producing such rule dies using digital rule writing. There is provided a rule die for pressure-contacting of a cardboard workpiece surface, including: (a) a die body; and (b) at least one elongate polymeric rule, each rule having: (i) a first elongate base surface adhesively attached to a surface of the die body; and (ii) an elongate protrusion, distally protruding from the die body, the elongate protrusion having an elongate die surface, the elongate die surface including a polymeric material, the elongate die surface having a contact surface adapted to contact the workpiece surface; the contact surface having a length of at least 5 mm and a first width (W) within a range of 0.4 to 1.0 mm, the rule having a height (H) within a range of 1.0 to 4.5 mm; wherein, over a total length of the contact surface, the contact surface having at most 5 surface pocks/meter, the pocks having a diameter above 0.1 mm.

Abstract: Optical devices having multi-functional coatings.

Abstract: Optical devices having multi-functional coatings.

Abstract: Die and counter-die systems, polymeric rule dies for such systems, and polymeric formulations suitable for producing such rule dies using digital rule writing. There is provided a rule die for pressure-contacting of a cardboard workpiece surface, including: (a) a die body; and (b) at least one elongate polymeric rule, each rule having: (i) a first elongate base surface adhesively attached to a surface of the die body; and (ii) an elongate protrusion, distally protruding from the die body, the elongate protrusion having an elongate die surface, the elongate die surface including a polymeric material, the elongate die surface having a contact surface adapted to contact the workpiece surface; the contact surface having a length of at least 5 mm and a first width (W) within a range of 0.4 to 1.0 mm, the rule having a height (H) within a range of 1.0 to 4.5 mm; wherein, over a total length of the contact surface, the contact surface having at most 5 surface pocks/meter, the pocks having a diameter above 0.1 mm.

Abstract: A method of additive manufacturing of a three-dimensional object. is disclosed. The method comprises sequentially forming a plurality of layers in a configured pattern corresponding to the shape of the object, thereby forming the object. The formation of each layer comprises dispensing at least one uncured building material, and at least partially curing the uncured building material, wherein for at least one layer, the curing is initiated at least t seconds after commencement of curing of a layer immediately preceding that layer. The t parameter is longer than the number of seconds required for the formation of the layer.

Abstract: Die and counter-die systems, polymeric rule dies for such systems, and polymeric formulations suitable for producing such rule dies using digital rule writing. There is provided a rule die for pressure-contacting of a cardboard workpiece surface, including: (a) a die body; and (b) at least one elongate polymeric rule, each rule having: (i) a first elongate base surface adhesively attached to a surface of the die body; and (ii) an elongate protrusion, distally protruding from the die body, the elongate protrusion having an elongate die surface, the elongate die surface including a polymeric material, the elongate die surface having a contact surface adapted to contact the workpiece surface; the contact surface having a length of at least 5 mm and a first width (W) within a range of 0.4 to 1.0 mm, the rule having a height (H) within a range of 1.0 to 4.5 mm; wherein, over a total length of the contact surface, the contact surface having at most 5 surface pocks/meter, the pocks having a diameter above 0.1 mm.

Abstract: Die and counter-die systems, polymeric rule dies for such systems, and polymeric formulations suitable for producing such rule dies using digital rule writing. There is provided a rule die for pressure-contacting of a cardboard workpiece surface, including: (a) a die body; and (b) at least one elongate polymeric rule, each rule having: (i) a first elongate base surface adhesively attached to a surface of the die body; and (ii) an elongate protrusion, distally protruding from the die body, the elongate protrusion having an elongate die surface, the elongate die surface including a polymeric material, the elongate die surface having a contact surface adapted to contact the workpiece surface; the contact surface having a length of at least 5 mm and a first width (W) within a range of 0.4 to 1.0 mm, the rule having a height (H) within a range of 1.0 to 4.5 mm; wherein, over a total length of the contact surface, the contact surface having at most 5 surface pocks/meter, the pocks having a diameter above 0.1 mm.

Abstract: Embodiments of the present invention relate to a system and method for manufacturing a three-dimensional object from a stack of pre-stripped layers of substrate. Each object layer is formed by (i) providing substrate comprising waste portion(s) and substrate-retained portion(s) that are attached to each other and separated from one another by cut(s) within the substrate; (ii) subsequently, subjecting the subject of each layer to a stripping process which selectively strips away substrate-waste portion(s) from the substrate-retained portion(s). After stripping, the object layer is added to a stack of previously-stacked object layers to grow the stack. This process is repeated to further grow the stack. Object layers of the stack are bonded to each other to build the three-dimensional object therefrom. Apparatus and methods for stripping are also described—any teaching or combination of teaching(s) related to stripping substrate may be employed in any additive-manufacturing process described herein.

Abstract: Optical devices having multi-functional coatings.

Abstract: Optical device with an optical substrate and a multi-functional layer fixed thereon, the layer including plural multi-functional areas, each said area including a first group and a second group of functional dots and disposed within a certain rectangular area, the first group having a first composition and a first functionality, the first functionality selected from an anti-reflectance, anti-scratch, anti-fog, ultraviolet absorber, and photochromic functionality; the second group having a second composition and a second functionality, the second functionality selected from the same group as above, the second group differs with respect to the first functionality, or with respect to the first composition, or wherein within at least one multi-functional area, the first group has a height H1, the second group has a height H2, where H2>k*H1, with k being at least 1.05.

Abstract: A system and a method for creating a fold line in a substrate, by impressing at least one crease line onto the substrate. The impressing is carried out by compressing the substrate between a die and a corresponding counter die of a creasing module. Following impression of the crease line, at least one cut is made in the substrate along the crease line thereby to form the fold line. The at least one cut has a depth less than the thickness of the substrate at the crease line.

Abstract: A die and counter die system for impressing a relief pattern onto a substrate, including at least one male die including a contact surface and defining a relief pattern, a compressible counter film including a base layer, a contact layer disposed opposite the contact surface of the at least one male die and spaced therefrom, and a compressible layer disposed between the base layer and the contact layer and attached thereto. The contact layer is featureless in a region thereof opposing the relief pattern on the at least one male die. The compressible counter film has a compressibility, in a direction perpendicular to a broad face of the compressible counter film, in the range of 5-30% at 1.35 MPa. The system further includes a compression mechanism adapted to move the at least one male die and the compressible counter film towards one another in an operative mode.

Abstract: A die and counter die system for impressing a relief pattern onto a substrate, including a male die film and at least one female die. The female die includes a female-die contact surface including at least one cavity defining the relief pattern. The male die film includes a flexible male-die contact surface which is featureless in a region thereof opposing the relief pattern on the at least one female die. The system further includes a compression mechanism adapted, when the substrate is disposed between the male die contact surface and the female die contact surface, to move the male die film and the at least one female die towards one another so as to impress the relief pattern on the substrate.

Abstract: A method of additive manufacturing of a three-dimensional object. is disclosed. The method comprises sequentially forming a plurality of layers in a configured pattern corresponding to the shape of the object, thereby forming the object. The formation of each layer comprises dispensing at least one uncured building material, and at least partially curing the uncured building material, wherein for at least one layer, the curing is initiated at least t seconds after commencement of curing of a layer immediately preceding that layer. The t parameter is longer than the number of seconds required for the formation of the layer.

Abstract: The method comprises sequentially forming a plurality of layers in a configured pattern corresponding to the shape of the object, thereby forming the object. The formation of each layer comprises dispensing at least one uncured building material, and at least partially curing the uncured building material, wherein for at least one layer, the curing is initiated at least t seconds after commencement of curing of a layer immediately preceding that layer. The t parameter is longer than the number of seconds required for the formation of the layer.

Abstract: Embodiments of the present invention relate to a system and method for manufacturing a three-dimensional object from a stack of pre-stripped layers of substrate. Each object layer is formed by (i) providing substrate comprising waste portion(s) and substrate-retained portion(s) that are attached to each other and separated from one another by cut(s) within the substrate; (ii) subsequently, subjecting the subject of each layer to a stripping process which selectively strips away substrate-waste portion(s) from the substrate-retained portion(s). After stripping, the object layer is added to a stack of previously-stacked object layers to grow the stack. This process is repeated to further grow the stack. Object layers of the stack are bonded to each other to build the three-dimensional object therefrom. Apparatus and methods for stripping are also described—any teaching or combination of teaching(s) related to stripping substrate may be employed in any additive-manufacturing process described herein.