An optical module includes a light-forming part and a protective member. The light-forming part includes a base member; semiconductor light-emitting devices mounted on the base member; lenses mounted on the base member and configured to convert, in terms of spot size, light emitted from the semiconductor light-emitting devices; and light-receiving devices that are mounted on the base member, that are disposed, in the emission directions of the semiconductor light-emitting devices, between the semiconductor light-emitting devices and the lenses, and that are configured to directly receive light from the semiconductor light-emitting devices.

Provided is an optoelectronic light source that includes a plurality of semiconductor lasers each configured to emit a laser beam and arranged on a mounting platform, and a redirecting optical element configured to redirect the laser beams. The redirecting optical element includes for each one of the plurality of semiconductor lasers a separate reflection zone, the reflection zones are shaped differently from one another, and after passing the redirecting optical element, the laser beams run in a common plane.

A lighting apparatus including a light generating device and at least one light wavelength conversion element and also at least one light directing means is provided. The light generating device and the at least one light directing means are configured in such a way that linearly polarized light is generated and directed from different directions to the at least one light wavelength conversion element, such that the linearly polarized light impinges on a surface of the at least one light wavelength conversion element from different directions in each case at an angle of incidence which corresponds to a Brewster angle, wherein the polarization direction of the linearly polarized light is parallel to the plane of incidence thereof.

A laser module includes a laser submodule, a polarization beam combiner (PBC), a beam rotator, a grating, and an output fiber (e.g., each disposed on an internal surface of a floor of the laser module). The laser submodule is configured to emit an array pattern of beams, which the PBC is configured to combine into a vertical stack pattern of beams, which the beam rotator is configured to rotate into a horizontal stack pattern of beams, which the grating is configured to combine into an overlapped pattern of beams, which the output fiber is configured to emit. The vertical stack pattern of beams, the horizontal stack pattern of beams, and the overlapped pattern of beams are to transmit through the laser module parallel to a single common plane (e.g., that is parallel to the internal surface of the floor of the laser module).

A laser array comprises first and second laser unit to respectively emit a first and second laser beams that propagate in a first and second directions and that are polarized in first and second polarization directions and a polarization coupling prism arranged to couple the two laser beams. The coupling prism comprises: a light entry surface to receive the first laser beam; a reflecting surface to reflect the first laser beam at an angle greater than the limit angle of total inner reflection; and a light exit surface through which the first laser beam exits the prism. The second laser unit is arranged relative to the polarization coupling prism to cause the second laser beam to impinge on and be reflected at the light exit surface in the same direction as the first laser beam exiting the prism, resulting in a collinear superposition of the first and second laser beams.

An additive manufacturing system including a two-dimensional energy patterning system for imaging a powder bed is disclosed. Improved structure formation, part creation and manipulation, use of multiple additive manufacturing systems, and high throughput manufacturing methods suitable for automated or semi-automated factories are also disclosed.

An optical module (1A) includes a polarization beam splitter (10A), polarization elements (20 and 40) having nonreciprocal optical activity and respectively arranged on an optical path of a first polarization component (L2) transmitted through a light splitting surface (11) in irradiation light (L1) and an optical path of a second polarization component (L4) reflected in the light splitting surface (11), a first reflective SLM (30) that modulates and reflects a first polarization component (L2) passing through the first polarization element (20), and a second reflective SLM (50) that modulates and reflects the second polarization component (L4) passing through the second polarization element (40). First modulation light (L3) passing through the polarization element (20) again and then reflected by the light splitting surface (11) and second modulation light (L5) passing through the polarization element (40) again and then transmitted through the light splitting surface (11) are combined with each other.

Provided is a light illuminating apparatus for irradiating light of a line shape extending in a first direction and having a line width in a second direction. The light illuminating apparatus includes light emitting units, each including a substrate, light sources arranged at an interval along the first direction on the substrate and placed such that a direction of an optical axis is matched to a direction perpendicular to the substrate surface, and optical devices placed on optical paths of each light source to shape light from each light source into light with a predetermined divergence angle, wherein the light emitting units are arranged on an arc having its center at the irradiation position when viewed in the first direction, and an irradiation width in the second direction of light from the light emitting units is approximately equal within a preset range in a direction perpendicular to the irradiation surface.

An apparatus for irradiating semiconductor material is disclosed having, a laser generating a primary laser beam, an optical system and a means for shaping the primary laser beam, comprising a plurality of apertures for shaping the primary laser beam into a plurality of secondary laser beams. Wherein the shape and/or size of the individual apertures corresponds to that of a common region of a semiconductor material layer to be irradiated. The optical system is adapted for superposing the secondary laser beams to irradiate said common region. Further, the use of such an apparatus in semiconductor device manufacturing is disclosed.

A light-emitting apparatus and a related projection system. The light-emitting apparatus comprises an excitation light source generating an excitation light and a first supplemental laser source generating a first light; a wavelength conversion apparatus comprising a first wavelength conversion layer for absorbing the excitation light to generate a converted light without absorbing the first light; the wavelength conversion layer receiving at one side thereof the excitation light and the first light and emits at same side at least a portion of the first light; a light guide apparatus comprising a smaller first area and a larger second area, the first light and the excitation light respectively entering the first and second areas via a first optical path, and being respectively guided by the first and second areas to the wavelength conversion apparatus; the second area also guiding the converted light and the reflected first light to a second optical path.