The present disclosure discloses a light distribution assembly and a lighting device, belonging to the technical field of lighting. The light distribution assembly includes a first lens, a second lens, a first kit, and a second kit; the first lens is disposed on the first kit, the second lens is disposed on the second kit, the second kit is connected to the first kit and is rotatable relative to the first kit to allow the second lens to be rotatable relative to the first lens, and at least one of the first lens and the second lens is a polarizing lens to change a light distribution path of the light distribution assembly.

The present disclosure discloses a light distribution assembly and a lighting device, belonging to the technical field of lighting. The light distribution assembly includes a first lens, a second lens, a first kit, and a second kit; the first lens is disposed on the first kit, the second lens is disposed on the second kit, the second kit is connected to the first kit and is rotatable relative to the first kit to allow the second lens to be rotatable relative to the first lens, and at least one of the first lens and the second lens is a polarizing lens to change a light distribution path of the light distribution assembly.

A liquid crystal display (LCD) backlight system includes: a light source, configured to generate light; a patterned polarization grating polarization converter (PPG-PC) assembly, configured to convert the generated light from a first polarization state to a second polarization state. The PPG-PC further includes: a patterned polarization grating (PPG) having a plurality of domains, wherein the plurality of domains of the PPG include at least two different types of domains, and wherein each domain of the PPG is configured to diffract incident light into first and second types of light beams corresponding to a first diffraction order; and a patterned retarder (PR), having a plurality of domains, the plurality of domains of the PR including domains corresponding to areas where the first type of light beams output from the PPG and including domains corresponding to areas where the second type of light beams output from the PPG converge.

A liquid crystal display (LCD) backlight system includes: a light source, configured to generate light; a patterned polarization grating polarization converter (PPG-PC) assembly, configured to convert the generated light from a first polarization state to a second polarization state. The PPG-PC further includes: a patterned polarization grating (PPG) having a plurality of domains, wherein the plurality of domains of the PPG include at least two different types of domains, and wherein each domain of the PPG is configured to diffract incident light into first and second types of light beams corresponding to a first diffraction order; and a patterned retarder (PR), having a plurality of domains, the plurality of domains of the PR including domains corresponding to areas where the first type of light beams output from the PPG and including domains corresponding to areas where the second type of light beams output from the PPG converge.

The lighting device (11) has at least one light generation device (12) for generating a primary light (P), a first luminophore (16) for converting the wavelength of the primary light (P) to a first secondary light (S1), and a second luminophore (20) for converting the wavelength of the primary light (P) to a second secondary light (S2), the first luminophore (16) being located on a movable support (15), which is provided in order to alternatively move the first luminophore into and out of a beam path of the primary light (P), and the second luminophore being located on a stationary support (21). The invention also relates to a method for generating wavelength-converted secondary light from primary light with alternating irradiation of a first luminophore located on a movable support and of a second luminophore located on a stationary support by the primary light. The invention can be used, for example, as a projection device for film and video projection, in endoscopy, for lighting effects in the entertainment industry, for medical irradiations as well as in the automobile industry, in particular as a head light for motor vehicles.

The lighting device (11) has at least one light generation device (12) for generating a primary light (P), a first luminophore (16) for converting the wavelength of the primary light (P) to a first secondary light (S1), and a second luminophore (20) for converting the wavelength of the primary light (P) to a second secondary light (S2), the first luminophore (16) being located on a movable support (15), which is provided in order to alternatively move the first luminophore into and out of a beam path of the primary light (P), and the second luminophore being located on a stationary support (21). The invention also relates to a method for generating wavelength-converted secondary light from primary light with alternating irradiation of a first luminophore located on a movable support and of a second luminophore located on a stationary support by the primary light. The invention can be used, for example, as a projection device for film and video projection, in endoscopy, for lighting effects in the entertainment industry, for medical irradiations as well as in the automobile industry, in particular as a head light for motor vehicles.

A polarization-modulating element for modulating a polarization state of incident light into a predetermined polarization state, the polarization-modulating element being made of an optical material with optical activity and having a circumferentially varying thickness profile.

Accessories for LED lamp systems and methods of attaching accessories to illumination sources (e.g., LED lamps) are disclosed. A beam shaping accessories mechanically affixed to the LED lamp. The lens is designed to adapt to a first fixture that is mechanically attached to the lens. Accessories are designed to have a second fixture for mating to the first fixture such that the first fixture and the second fixture are configured to produce a retaining force between the first accessory and the lens. The retaining force is a mechanical force that is accomplished by mechanical mating of mechanical fixtures, or the retaining force is a magnetic force and is accomplished by magnetic fixtures configured to have attracting magnetic forces. In some embodiments, the accessory is treated to modulate an emanated light pattern (e.g., a rectangular, or square, or oval, or circular or diffused emanated light pattern). A USB connector is also provided.

An optical display system includes a polarizer, an integrated back light unit optically connected to a first face of the polarizer and a display comprising an array of pixels optically connected to a second face of the polarizer. The first face of the polarizer and the second face of the polarizer are not parallel and the polarizer is configured to direct light from the integrated back light unit to the display.

An optical display system includes a polarizer, an integrated back light unit optically connected to a first face of the polarizer and a display comprising an array of pixels optically connected to a second face of the polarizer. The first face of the polarizer and the second face of the polarizer are not parallel and the polarizer is configured to direct light from the integrated back light unit to the display.