A viewing angle switchable display device includes: a substrate having at least one subpixel; a plurality of transistors in the at least one subpixel on the substrate; first and second light emitting diodes in the at least one subpixel on the substrate, the first and second light emitting diodes connected to two, respectively, of the plurality of transistors; and an integrated lens on the first and second light emitting diodes, the integrated lens including a half cylindrical lens corresponding to the first light emitting diode and a half spherical lens corresponding to the second light emitting diode.

A viewing angle switchable display device includes: a substrate having at least one subpixel; a plurality of transistors in the at least one subpixel on the substrate; first and second light emitting diodes in the at least one subpixel on the substrate, the first and second light emitting diodes connected to two, respectively, of the plurality of transistors; and an integrated lens on the first and second light emitting diodes, the integrated lens including a half cylindrical lens corresponding to the first light emitting diode and a half spherical lens corresponding to the second light emitting diode.

An optical system for a hyperspectral camera and a hyperspectral camera comprising such an optical system are disclosed. The optical system comprises fore optics (1000), an image sensor (1800), a slit (1500), relay optics (1200), a first optical element (2000) positioned before the slit (1500), where the first optical element (2000) is defocusing light in a direction parallel to the slit (1500) while keeping focus in a direction perpendicular to the slit (1500); and a second optical element (2100) positioned after the slit (1500), where the second optical element (2100) is compensating the defocus of the depicted scene introduced by the first element (2000).

An optical system for a hyperspectral camera and a hyperspectral camera comprising such an optical system are disclosed. The optical system comprises fore optics (1000), an image sensor (1800), a slit (1500), relay optics (1200), a first optical element (2000) positioned before the slit (1500), where the first optical element (2000) is defocusing light in a direction parallel to the slit (1500) while keeping focus in a direction perpendicular to the slit (1500); and a second optical element (2100) positioned after the slit (1500), where the second optical element (2100) is compensating the defocus of the depicted scene introduced by the first element (2000).

An attachment optical system includes a first converter optical system attachable to an object side of an imaging optical system, and a second converter optical system attachable to an image side of the imaging optical system. The first converter optical system includes a dome-shaped cover and at least one positive lens. A predetermined condition is satisfied.

An attachment optical system includes a first converter optical system attachable to an object side of an imaging optical system, and a second converter optical system attachable to an image side of the imaging optical system. The first converter optical system includes a dome-shaped cover and at least one positive lens. A predetermined condition is satisfied.

An optical component includes a first lens and a second lens that are arranged in sequence in an emission direction of a beam and are disposed opposite relative to each other. The first lens has a first shaping surface and a second shaping surface that are disposed opposite to each other, and the second lens has a third shaping surface and a fourth shaping surface that are disposed opposite to each other. The first shaping surface and the third shaping surface form a first shaping surface group to perform optical path collimation on a first polarization direction of the beam. The second shaping surface and the fourth shaping surface form a second shaping surface group to perform optical path collimation on a second polarization direction of the beam.

Techniques and mechanisms for facilitating horizontal communication with a photonic integrated circuit (PIC) chip, and a lens structure which is optically coupled thereto. In an embodiment, a PIC chip comprises integrated circuitry, photonic waveguides, and integrated edge-oriented couplers (IECs) which are coupled to the integrated circuitry via the photonic waveguides. The PIC chip forms respective first divergent lens surfaces of the IECs, which are each at a respective terminus of a corresponding one of the photonic waveguides. A lens structure, which is adjacent to the IECs, comprises a second divergent lens surface having an orientation which is substantially orthogonal to the respective orientations of the first divergent lens surfaces. In another embodiment, an edge of the PIC chip forms one or more recess structures, and the lens structure comprises one or more tenon portions which each extends into a respective recess structure of the one or more recess structures.

Techniques and mechanisms for facilitating horizontal communication with a photonic integrated circuit (PIC) chip, and a lens structure which is optically coupled thereto. In an embodiment, a PIC chip comprises integrated circuitry, photonic waveguides, and integrated edge-oriented couplers (IECs) which are coupled to the integrated circuitry via the photonic waveguides. The PIC chip forms respective first divergent lens surfaces of the IECs, which are each at a respective terminus of a corresponding one of the photonic waveguides. A lens structure, which is adjacent to the IECs, comprises a second divergent lens surface having an orientation which is substantially orthogonal to the respective orientations of the first divergent lens surfaces. In another embodiment, an edge of the PIC chip forms one or more recess structures, and the lens structure comprises one or more tenon portions which each extends into a respective recess structure of the one or more recess structures.

The disclosure describes various aspects of techniques for elliptical beam design using cylindrical optics that may be used in different applications, including in quantum information processing (QIP) systems. In an aspect, the disclosure describes an optical system having a first optical component having a first focal length, a second optical component having a second focal length and aligned with a first direction, and a third optical component having a third focal length and aligned with a second direction orthogonal to the first direction. The optical system is configured to receive one or more optical beams (e.g., circular or elliptical) and apply different magnifications in the first direction and the second direction to the one or more optical beams to image one or more elliptical Gaussian optical beams. A method for generating elliptical optical beams using a system as the one described above is also disclosed.