A laser welding system is directed to simultaneously joining respective layers of a first bag and a second bag. The system includes a first film layer adjacent to a second film layer for forming the first bag, and a third film layer adjacent to a fourth film layer for forming the second bag, each layer of the plurality of film layers being made of a thermoplastic material that absorbs laser radiation having a wavelength of about 2 microns. A non-absorbing carrier film layer is positioned between the second film layer and the third film layer, the non-absorbing carrier film layer being made of a material that transmits substantially all energy of the laser radiation. A laser source applies the laser radiation toward portions of the plurality of film layers to be joined, forming the first bag generally simultaneously with the second bag.

A method is for manufacturing a structure obtained by stacking a substrate that is a first member as a base material, and lens arrays that are second members that are opposed to the substrate, are formed of a resin material different from the substrate, and have a shape on a surface. The method includes a surface activation step of performing an activation treatment to cause an activation state of at least one of a surface of the substrate or a surface of the lens arrays, and a bonding step of pressurizing the lens arrays at least at a temperature that is equal to or higher than a reference temperature obtained by subtracting 30° C. from a load deflection temperature of a resin material of the lens arrays, and is equal to or lower than a glass transition temperature, to closely bond to the substrate.

There is provided a method of making a fluidic system that comprises assembling a fluidic system comprising a first plate, a second plate and a membrane disposed between the first plate and the second plate; applying laser energy to the fluidic system to cause the first plate, the second plate and the membrane to melt at bonding areas; and allowing the bonding areas to cool down such that the first plate, the second plate and the membrane are bonded together.

There is provided a method of making a fluidic system that comprises assembling a fluidic system comprising a first plate, a second plate and a membrane disposed between the first plate and the second plate; applying laser energy to the fluidic system to cause the first plate, the second plate and the membrane to melt at bonding areas; and allowing the bonding areas to cool down such that the first plate, the second plate and the membrane are bonded together.

A system for holding a workpiece in position and exposing it to laser radiation, such that: the workpiece includes a bottom surface and a top surface that are electrically insulated from each other. The system includes an electrostatic charge generating device for generating electrostatic charges on the top surface; an electrically conductive support for forming, on the bottom surface, electrostatic charges of opposite sign to those generated on the top surface; and a laser device for machining or welding. The electrostatic charge generating device is arranged to be activated before or during the laser machining or welding, such that the workpiece is held in position relative to the electrically conductive support during the machining or welding thereof.

A system for holding a workpiece in position and exposing it to laser radiation, such that: the workpiece includes a bottom surface and a top surface that are electrically insulated from each other. The system includes an electrostatic charge generating device for generating electrostatic charges on the top surface; an electrically conductive support for forming, on the bottom surface, electrostatic charges of opposite sign to those generated on the top surface; and a laser device for machining or welding. The electrostatic charge generating device is arranged to be activated before or during the laser machining or welding, such that the workpiece is held in position relative to the electrically conductive support during the machining or welding thereof.

A method for the production of an elastic laminate, with the following steps in a production line: coextrudeing a first web of elastic film with at least three layers, with at least two different polymer materials, to feed contemporaneously said coextruded first elastic film web and two second nonwoven webs to a thermal, binding calender, wherein the first elastic film web is arranged between said two second nonwoven webs when entering the calender; wherein said first elastic film web, during the movement from the coextrusion step to the thermal binding step, passes from a melted state, to a solidified and cold state when entering the calender, to join, through spot welding in said calender, said second nonwoven webs with respective opposite outer layers of said first elastic film web, thus producing an intermediate web, to stretch mechanically said intermediate web according to a direction transverse to the same web.

A method for the production of an elastic laminate, with the following steps in a production line: coextrudeing a first web of elastic film with at least three layers, with at least two different polymer materials, to feed contemporaneously said coextruded first elastic film web and two second nonwoven webs to a thermal, binding calender, wherein the first elastic film web is arranged between said two second nonwoven webs when entering the calender; wherein said first elastic film web, during the movement from the coextrusion step to the thermal binding step, passes from a melted state, to a solidified and cold state when entering the calender, to join, through spot welding in said calender, said second nonwoven webs with respective opposite outer layers of said first elastic film web, thus producing an intermediate web, to stretch mechanically said intermediate web according to a direction transverse to the same web.

Apparatus and methods are described including adhering a first lens to a second lens such as to form a combined lens having a given optical design, by placing the first lens and the second lens in respective first and second pressure chambers with an adhesive layer disposed between the first lens and the second lens, bringing a convex surface of the first lens into contact with the adhesive layer, and bringing a concave surface of the second lens into contact with the adhesive layer. Other applications are also described.

Apparatus and methods are described including adhering a first lens to a second lens such as to form a combined lens having a given optical design, by placing the first lens and the second lens in respective first and second pressure chambers with an adhesive layer disposed between the first lens and the second lens, bringing a convex surface of the first lens into contact with the adhesive layer, and bringing a concave surface of the second lens into contact with the adhesive layer. Other applications are also described.