G02B5/3091

CATADIOPTRIC LENS AND OPTICAL SYSTEM COMPRISING SUCH A LENS
20190369374 · 2019-12-05 ·

A catadioptric lens includes at least two optical elements arranged along an optical axis. Both optical elements are configured as a mirror having a substrate and a highly reflective coating applied to an interface of the substrate. The highly reflective coating extends from the interface of the substrate along a surface normal. At least one of the highly reflective coatings has one or a plurality of layers. The optical total layer thickness of the one layer of the plurality of layers increases radially from the inner area outward.

Display apparatus and polarizer thereof

A display apparatus includes a substrate; a light emitting element on the substrate that is configured to emit visible light; and a polarizer including a polarizing object on the substrate and a supporting film on at least one surface of the polarizing object. The polarizing object is configured to absorb ultraviolet light and visible light having wavelengths shorter than a blue light of the visible light emitted from the light emitting element and is configured to transmit the visible light emitted from the light emitting element.

Wavelength conversion-type spatial light modulation device

The device includes a spatial light modulation section having a phase modulation plane to which laser light L1 in a wavelength region longer than an ultraviolet region is input, and on which a phase of the laser light L1 is modulated at each of a plurality of two-dimensionally arrayed regions, to generate modulated laser light L2, a wavelength conversion section having a light incident plane which receives the modulated laser light L2 output from the spatial light modulation section, and converting a wavelength of the modulated laser light L2 into a wavelength in the ultraviolet region, and an image transfer optical system coupling the phase modulation plane of the spatial light modulation section and the light incident plane of the wavelength conversion section, so as to be optically conjugate systems to each other.

Polarizer assembly for spatially separation polarization states of a light beam
10394041 · 2019-08-27 · ·

The disclosure provides to a birefringent polarizer assembly for spatially separating polarization states of a light beam, in particular in the spectral range below 300 nm. The assembly includes a first prism on the light input side and a further prism on the light output side, which are arranged along a principal light incidence direction. The first prism has a first light entrance surface and a first light exit surface. The further prism has a further light entrance surface, facing the first light exit surface, and a further light exit surface. The prisms in each case have an optical principal crystal axis oriented substantially perpendicularly to the principal light incidence direction. The crystal axes of two adjacent prisms are oriented perpendicularly to one another. A normal to the further light exit surface forms an angle not equal to 0 with the principal light incidence direction.

POLARIZING FILM, METHOD FOR PREPARING THE SAME, AND DISPLAY DEVICE INCLUDING THE SAME
20190219754 · 2019-07-18 ·

A polarizing film, a method of preparing the polarizing film, and a display device including the polarizing film in which the polarizing film includes a self-aligned polymer matrix; liquid crystals aligned and cured in one direction in accordance with an alignment direction of the polymer matrix; and a dichroic dye aligned in the alignment direction of the liquid crystals.

METHOD FOR GENERATING ALIGNMENT ON TOP OF A LIQUID CRYSTAL POLYMER MATERIAL

The present invention relates to a method for manufacturing an optical element including a layer comprising anisotropic optical function and alignment capability. The layer is formed from a composition comprising polymerizable liquid crystals and one or more photo-orientable substances. Alignment on top of the layer is achieved by exposure to linearly polarized light.

Electromagnetic Radiation Enhancement Methods and Systems
20190137769 · 2019-05-09 ·

An optical system for producing electromagnetic radiation with localized increases in irradiance or radiance at the system output includes a first optical mask containing localized regions for producing controlled modifications of phase delays and/or amplitude attenuations and located within the input plane of said optical system. The system also includes at least a single optical component with positive optical power located after the input plane and at least one additional optical mask located after the optical component at non-conjugate locations with respect to the input plane of the system. The additional optical mask contains localized regions for producing controlled modifications of phase delays. Locally increased radiation distributions are produced at the system output.

POLARIZING PLATE FOR LIGHT EMITTING DISPLAY DEVICE AND LIGHT EMITTING DISPLAY DEVICE INCLUDING SAME

Provided are a polarizing plate for a light emitting display device and the light emitting display device including same, the polarizing plate for a light emitting display device having a first adhesive film, a second protective layer, a polarizer, and a first protective layer sequentially laminated therein. The polarizing plate includes a UV absorber; and an as value of the polarizing plate is about ?2.0 to about ?20.0, and a bs value of the polarizing plate is about 3.0 to about 30.0.

Method for generating alignment on top of a liquid crystal polymer material

The present invention relates to a method for manufacturing an optical element including a layer comprising anisotropic optical function and alignment capability. The layer is formed from a composition comprising polymerizable liquid crystals and one or more photo-orientable substances. Alignment on top of the layer is achieved by exposure to linearly polarized light.

Optical element and method for manufacturing the same
12032193 · 2024-07-09 · ·

An optical element includes a three-dimensional structure having a curved surface; and a retardation plate bent along the curved surface. The retardation plate includes a transparent substrate and a liquid crystal layer formed over the transparent substrate. The retardation plate has a slow axis and a fast axis. A glass-transition temperature, Tgne, in a slow axis direction of the retardation plate is higher than a glass-transition temperature, Tgno, in a fast axis direction of the retardation plate.