摘要:
Methods and apparatuses are provided for reducing reflections in optical systems. Two optical elements are spaced apart from each other with first surfaces facing each other to form a gap there between. Reflections from a light beam passing through the two optical elements are at a non-zero angle with respect to the light beam. A second surface of one of the optical elements is essentially perpendicular to the light beam.
摘要:
A beam homogenizing apparatus includes at least one flexible optical fiber for receiving light, the flexible optical fiber including a homogenizing output portion having a tileable cross-section, the output portion for producing a substantially homogenized intensity profile for light emitted therefrom.
摘要:
One embodiment of a projection device includes a modulator that reflects both imaging light and off-state light, and a projection lens including an optical plane, wherein the imaging light and the off-state light are both projected from the modulator to the optical plane.
摘要:
A projection system includes a modulator and an Offner relay. The modulator is to modulate light in accordance with sub-frames of a frame of image data. The Offner relay is to differently aim, in accordance with each sub-frame, the light as modulated.
摘要:
A system and method for encryption of a holographic image is disclosed. The method includes the operation of producing a beam of light having at least two wavelengths of light. The beam of light can be split to form an illumination beam and a reference beam. Amplitude information can be added to the illumination beam with an intensity control device to form an object beam. Wavelength information can be selected in the object beam to form a spatial color modulated object beam. The reference beam and spatial color modulated object beam can be directed to a predetermined location on the holographic media to interfere to record an interference pattern.
摘要:
Projection assemblies are provided herein for use in a display system. According to one exemplary embodiment, the projection assembly includes an illumination source and a plurality of co-planar modulator panels. A method of modulating light is also provided herein that includes generating multi-component light, splitting the multi-component light into a plurality of component beams, and modulating the component beams with a plurality of co-planar modulator panels to form a plurality of sub-images.
摘要:
A projection system including an illumination source providing an illumination beam, a modulator configured to modulate the illumination beam based on an image signal to form an image beam, and a projection lens having an aberration profile and comprising a catadioptric lens. The image signal is adjusted based on the aberration profile of the projection lens. The catadioptric lens is configured to receive the image beam along a first optical axis and fold and direct the image beam along a second optical axis such that a fold angle between the first and second optical axes is within a desired range.
摘要:
A light modulator device includes a top plate and an angled extender coupled to the top plate. The angled extender includes an incident portion and an exit portion that is relatively thicker than the incident portion.
摘要:
A modulator for a projection system includes a surface having a number of pixels defined thereon corresponding to pixels of the projection system. The pixel areas have shapes that counter a distortion of a lens of the projection system, such that distortion effects of the lens are reduced, and/or the side profile of the surface matches a field curvature of the lens of the projection system, such that field curvature effects of the lens are reduced.
摘要:
An embodiment of a double pass modulator includes a reflective polarizer adapted to pass light having a predetermined polarization state therethrough and to reflect substantially all other light, a quarter wave plate positioned to receive and pass light from the reflective polarizer, the quarter wave plate shifting the relative phase of the light passing therethrough by 45° with respect to the optic axis of the plate, and a reflector that receives light from the quarter wave plate and modulates at least a portion of the light incident thereon in a predetermined manner.