A screen protector configured to be disposed on an attaching body on an electronic device in an attaching mode to correspondingly cover a display screen of the electronic device. The screen protector comprises a grating sheet and a first attaching member disposed vertically adjacent to each other side-by-side and coated between two outer cover films. The screen protector is disposed on the attaching body on the electronic device in an attaching mode through the attaching member, so that a viewing zone defined by the grating sheet correspondingly covers the display screen of the electronic device.

The present invention provides a laminate film and a display member including the laminate film, which are excellent in visibility of external information such as scenery and displayability of information from a projection member, and are also excellent in color tone reproducibility. The laminate film includes a laminate of 50 or more alternately arranged layers of a plurality of different thermoplastic resins, the laminate film having a transmittance of light incident perpendicularly to a film surface of 50% or more, the laminate film satisfying a relationship of R20≤R40<R70, wherein R20, R40, and R70 are reflectances of a P-wave incident at angles of 20°, 40°, and 70°, respectively, to the normal to the film surface, the reflectance of R70 being 30% or more, reflected light of the P-wave incident at 70° to the normal to the film surface having a saturation of 20 or less.

A polarizer arrangement for polarizing a laser beam includes: multiple plate-shaped optical elements which are arranged in a beam path of the laser beam and each of which includes a beam entry surface for the laser beam and a beam exit surface for the laser beam, in which the beam entry surface of a respective plate-shaped optical element is oriented at the Brewster angle relative to the laser beam. The beam entry surfaces and the beam exit surfaces of the plate-shaped optical elements are in each case oriented at least at one wedge angle relative to one another. An EUV radiation generating device may include such a polarizer arrangement.

The invention provides for a coating which when used in conjunction with a p-polarization projector (26) and a windshield mounted such that the angle between projector is at or near the Brewster angle, a sharp image is produced with no ghost image. Further, the coating is suitable for use over the entire area of the windshield, has excellent solar control properties and has a low sheet resistance allowing it to be electrically defrosted at common automotive voltages.

In various embodiments, a pancake lens block (e.g., a reverse order crossed pancake lens block) including azimuthal compensation may include an optical element configured to transmit at least a portion of light emitted by an electronic display. The pancake lens block may further include an azimuthal compensator coupled to a surface of the optical element. Moreover, the azimuthal compensator may include a uniaxial birefringent material, and the azimuthal compensator may be configured to reduce an optical effect of stress birefringence in the optical element.

An optical element 1 includes a first layer (A1) and a second layer (A2) that faces the first layer (A1). The first layer (A1) includes a plurality of first structural bodies (B1) that each have optical anisotropy. In reflection of light entering from the first layer (A1), the second layer (A2) reflects the light while maintaining a polarization state of the light at incidence and at the reflection. The first layer (A1) changes, according to directions of orientation of the first structural bodies (B1), a phase of the light from a phase at incidence to the first layer (A1) from outside of the first layer (A1) to a phase at output from the first layer (A1) toward the second layer (A2). The first layer (A1) changes the phase of the light from a phase at incidence to the first layer (A1) from the second layer (A2) to a phase at output from the first layer (A1) toward the outside of the first layer (A1) according to the directions of orientation of the first structural bodies (B1).

A display system includes an optical system and a curved display disposed to emit light toward the optical system. The optical system includes at least a first optical lens, a partial reflector and a reflective polarizer. The optical system has an optical axis such that a light ray propagating along the optical axis passes through the first optical lens the partial reflector and the reflective polarizer without being substantially refracted. At least one major surface of the optical system can be rotationally asymmetric about the optical axis. A major surface of the optical system may have a first portion defined by a first equation and a second portion adjacent the first portion defined by a different equation. The first optical lens may have a contoured edge adapted to be placed adjacent an eye of a viewer and substantially conform to the viewer's face.

An optical system includes a partial reflector having an average optical reflectance of at least 30% in a desired plurality of wavelengths, a display panel disposed to emit image light toward the partial reflector, and a multilayer reflective polarizer disposed proximate the partial reflector. The multilayer reflective polarizer is curved about two orthogonal axes and includes at least one layer substantially optically uniaxial at at least one location. The image light is transmitted by the multilayer reflective polarizer after it is first reflected by the multilayer reflective polarizer. A quarter wave retarder may be disposed between the reflective polarizer and the partial reflector.

An optical apparatus includes a deflection unit configured to deflect illumination light from a light source to scan an object, and deflect reflected light from the object, and a light guide unit configured to guide the illumination light from the light source to the deflection unit and guide the reflected light from the deflection unit to a light receiving element. The light guide unit includes a first optical element to change a diameter of the illumination light from the light source, a second optical element including a passage region through which the illumination light from the first optical element passes and a reflective region to reflect the reflected light from the deflection unit, and at least one fixing member fixing the first optical element and the second optical element to each other.

Structures for a polarizer and methods of forming a structure for a polarizer. A first slotted waveguide component is positioned over a first waveguide core, and a second slotted waveguide component positioned over the first slotted waveguide component. The first slotted waveguide component includes a second waveguide core and a third waveguide core separated by a first slot, and the second slotted waveguide component includes a fourth waveguide core and a fifth waveguide core separated by a second slot. The first waveguide core is laterally aligned with the first slot and the second slot.