A stack forming apparatus according to embodiments comprises a nozzle and a controller. The nozzle is configured to selectively inject more than one kind of material to a target and to apply laser light to the injected material to melt the material. The controller configured to control the kind and supply amount of material to be supplied to the nozzle.

The present inventive concept relates to a laser annealing apparatus and a laser annealing method, which are capable of coping with various thicknesses of an object to be processed and various processes with respect to the object to be processed. The laser annealing apparatus includes: a stage configured to support a target object; a first laser head unit connected to a first laser source unit to irradiate a first laser to the target object; a second laser head unit connected to a second laser source unit to irradiate a second laser having a wavelength longer than that of the first laser to the target object; and a control unit configured to control driving of the first laser head unit and the second laser head unit, wherein the wavelength of the first laser is variable by the control unit.

A method for providing a first and a second laser beam, which are spatially offset in relation to an input laser beam. The method includes: providing a laser source for generating the input laser beam; providing a spatial offsetting unit for providing an offset laser beam that can keep the same polarization between the input laser beam and the offset laser beam; providing a separating unit including a first module for separation by polarization in order to obtain, from the offset laser beam: the first laser beam spatially offset by transmission; and the second laser beam spatially offset by reflection, the first and second spatially offset laser beams being suitable for each describing a circle.

A powder-bed laser processing apparatus includes a first scanning unit, a second scanning unit, a first drive unit, and a second drive unit. The first scanning unit applies first laser light to a powder bed while scanning the first laser light. The second scanning unit applies second laser light to the powder bed while scanning the second laser light. The first drive unit moves the first scanning unit so that the first laser light can be applied to a first irradiation area. The second drive unit moves the second scanning unit so that the second laser light can be applied to a second irradiation area and a position of the second scanning unit relative to the first scanning unit can be changed, the second irradiation area including a part of the first irradiation area.

A method of slitting a film material of a biosensor test strip is disclosed. The film material includes a working surface and an opposed bottom surface. The film material is moved relative to a bottom laser beam directed against the bottom surface of the film material, and relative to a working surface laser beam directed against the working surface of the film material. The bottom laser cuts partially into the bottom surface of the film material to a first depth. The working surface laser cuts into the working surface of the film material to a second depth. The bottom and working surface laser cuts are aligned and cooperate to define first and second portions of the film material on opposite sides of cuts. The bottom and working surface laser cuts either intersect and thereby separate the first and second portions, or are closely adjacent, leaving a connecting bridge which is subsequently severed into two portions.

Laser-drilling apparatus includes a gas-discharge for laser emitting laser-radiation pulses, and two acousto-optic modulators (AOMs). The laser radiation pulses are characterized as having two temporal central portions between temporal leading and trailing edge portions. The AOMs are arranged to spatially separate the central temporal portions of the pulses from each other and from the leading and trailing edge portions of the pulses.

A tool for laser beam processing is provided. The tool includes an upper tool and a lower tool, which are able to be advanced toward one another by way of a press, such that at least one component is able to be fixed in a predefined position between the upper tool and the lower tool. At least one laser beam exit surface, which is part of an inner surface of the upper tool or lower tool, and at least one laser beam guide, into which laser radiation is able to be coupled and is able to be directed through the laser beam exit surface onto a processing location on the component are provided. A control device, which enables and/or disables the coupling of laser radiation into the at least one laser beam guide depending on the advancing movement between upper tool and lower tool is provided. Furthermore, a laser beam processing apparatus and a method for laser beam processing are also provided.

The present disclosure relates to the field of display technology, and in particular relates to a light shielding structure and a laser device. The light shielding structure comprises a first light shielding plate group and a second light shielding plate group, each of the first light shielding plate group and the second light shielding plate group comprises at least one light shielding plate, and the at least one light shielding plate can be moved relatively for forming at least two light transmitting regions. The light shielding structure can realize partial scanning of multiple target regions at a time, thereby saving production time, increasing production efficiency, saving water and electricity and other resources, and prolonging the laser lifetime.

A stack forming apparatus according to embodiments comprises a nozzle and a controller. The nozzle is configured to selectively inject more than one kind of material to a target and to apply laser light to the injected material to melt the material. The controller is configured to control the kind and supply amount of material to be supplied to the nozzle.

A method of manufacturing a deposition mask includes: a splitting process in which a laser beam irradiated from a light source is split into a plurality of laser beams; a scanning process in which the plurality of laser beams are simultaneously scanned onto the mask substrate; and a tuning process in which irradiation states of the plurality of laser beams are finely changed to correspond to shapes of the plurality of pattern holes while the plurality of laser beams are scanned.