The invention discloses an optical module and a laser system, and relates to the technical field of optics. The optical module comprises a first light emitting assembly, a second light emitting assembly, and a homogenizing lens group arranged on the light emitting sides of the first light emitting assembly and the second light emitting assembly; Light beams emitted by the first light emitting assembly and the second light emitting assembly are respectively and vertically incident on the light incident side of the homogenizing lens group, and the homogenizing lens group homogenizes and emits the light beams incident by the first light emitting assembly and the second light emitting assembly to form light spots. The optical module and the laser system are small and compact in structure, and can realize diversified forms of output light spots, so that the optical module and the laser system can meet different requirements.

A light source apparatus includes a light source, a light collection optical system configured to collect a pencil of light emitted from the light source using multiple lenses, a microlens array formed into a size corresponding to a collected light diameter of a pencil of light collected by the light collection optical system and caused to be incident thereon from the light collection optical system, and a display device on to which light transmitted through the microlens array to be superimposed together is incident.

An apparatus is disclosed including: a light source, a Fresnel lens, and a lens array. The Fresnel lens is disposed upstream from the light source to collimate light output by the light source. The lens array is disposed upstream from the Fresnel lens to mix collimated light that is output from the Fresnel lens. The lens array includes a plurality of optical elements arranged on a substrate. Each optical element includes a respective first planar surface arranged to face towards a different respective portion of the Fresnel lens and a second convex surface arranged to face away from the Fresnel lens.

A sensing device includes a plurality of sensing sets having a plurality of lenses and a plurality of sensing units. The sensing units are configured to collect reflected light which pass through the lenses. Each sensing set adopts a structure which includes one sensing unit and multiple lenses for providing fingerprint sensing with high accuracy.

A homogenizing module and a projection apparatus are provided. The homogenizing module is configured to homogenize a beam and includes an anisotropic diffuser and a homogenizer. The anisotropic diffuser is located on a transmission path of the beam. The beam has a first divergence angle in a first direction and a second divergence angle in a second direction after passing through the anisotropic diffuser. The first divergence angle is greater than the second divergence angle. The homogenizer is located on a transmission path of the beam from the anisotropic diffuser, and the homogenizer includes multiple optical elements. The size of any of the multiple optical elements in the first direction is greater than the size thereof in the second direction. The first direction is perpendicular to the second direction.

Described are various embodiments of a digital display device for use by a user having reduced visual acuity. In one embodiment, the device comprises: a digital display medium comprising an array of pixels and operable to render a pixelated image accordingly; a light field shaping layer defined by an array of light field shaping elements and disposed relative to said digital display so to align each of said light field shaping elements with a corresponding set of said pixels to shape a light field emanating therefrom and thereby at least partially govern a projection thereof from said display medium toward the user; and a hardware processor operable on pixel data for the image such that said processed image is rendered to at least partially compensate for the user's reduced visual acuity.

A line pattern projector includes a light source array, a lens and a diffractive microlens array. The light source array includes a plurality of light sources that emit light beams, wherein the plurality of light sources are arranged along a first direction. The lens is configured to collimate the light beams. The diffractive microlens array (MLA) is configured to diffract the collimated light beams thereby to project an illumination pattern, wherein a lens pitch of the diffractive MLA with respect to the first direction is wider than a lens pitch of the diffractive MLA with respect to a second direction. The illumination pattern is formed by overlapping multiple dot patterns that are projected by the light sources; and the illumination pattern includes a plurality of line light patterns in the first direction.

Optical communication system communicates between an array of originating tiles and an array of terminating tiles. Each array is associated with a lenslet array, such as a two-layer array. Each originating tile has an array and each terminating tile has an array of transceivers. Each tile is associated with a common lenslet or lenslet pair. A beamlet from a representative originating transceiver passes through the lenslet pair adjacent to its tile via an originating Fourier transform element, collimating optics, and a terminating Fourier transform element. The beam then passes through the lenslet pair adjacent to the tile containing the terminating transceiver associated with the representative originating transceiver, and is focused onto that receiver by that lenslet pair. Originating and/or terminating arrays of multicore fibers may be used between the originating transceivers and the originating Fourier transform element and/or between the terminating Fourier transform element and the terminating transceivers.

A beam shaping method and device employing full-image transfer for planar light sources. The method comprises: using multiple first lenses to respectively magnify and image beams emitted by multiple planar light sources, so as to obtain magnified full images of the multiple planar light sources; and seamlessly stitching together the magnified full images of the multiple planar light sources at a primary imaging position, so as to obtain a seamless light source at the primary imaging position. The beam shaping method for the planar light sources achieves the elimination of gaps between the light sources with almost no loss of optical power by means of full-image transfer and seamless stitching, thereby improving the beam quality of the light sources as a whole. This kind of optical shaping method is suitable for shaping and processing planar light sources such as VCSEL and LED.

A light source system and a light-emitting device are provided. The light source system includes an array of light-emitting diodes, the light-emitting diodes including light-emitting diode chips; a collimating lens group located on a light path of light emitted by the array of the light-emitting diodes, the collimating lens group being configured to collimate light beams emitted by the light-emitting diode chips; and a fly-eye lens arranged on a light path of light outputted from the collimating lens group. The fly-eye lens includes micro lens units corresponding to the light-emitting diode chips, and for at least one light-emitting diode chip of the light-emitting diode chips, an image formed by each of at least one light-emitting diode chip on surfaces of the micro lens units is completely within a surface of one of the micro lens units. A ratio of side lobes is reduced, thereby improving the energy utilization rate.