摘要:
An optical system for assisting image positioning. The system comprises a light source (1), and further comprises a dot pattern or an interface beam-splitting pattern which is arranged on a light-emergent light path of the light source (1) and generates an interface beam-splitting projection light ray for indicating a text or an image after being projected by emergent light of the light source (1). By means of a combination of a light source (1) and a dot pattern or an interface beam-splitting pattern, a word line, a cross line, or the other patterns which can generate a beam-splitting interface can be projected. Furthermore, by virtue of a DOE moulding lens, of which an emergent face is a spherical face or an aspherical face, a specific linear light beam or the other patterns which can generate the beam-splitting interface are generated. Rapid positioning and capturing of a specific part of an image or a specific image are realized, and the accuracy is high.
摘要:
A see-through image display system having a DOE often has undesirable light or so called ghost images due to the quantization of saw tooth shape of DOE surface. This invention provides ways to eliminate ghost images.
摘要:
A new projector design combines one spatial light modulator that affects only the phase of the illumination, and one spatial light modulator that only affects its amplitude (intensity). The phase-only modulator curves the wavefront of light and acts as a pre-modulator for a conventional amplitude modulator. This approach works with both white light and laser illumination, generating a coarse image representation efficiently, thus enabling, within a single image frame, significantly elevated highlights as well as darker black levels while reducing the overall light source power requirements.
摘要:
The present technology relates to a projecting apparatus, a projecting module, and an electronic instrument capable of achieving high definition in an image projected by the projection apparatus.With two or more systems of laser beams projected from a light source to a drive mirror formed with MEM in a projection apparatus, the resolution is to be enhanced. without changing a drive speed of the drive mirror by the MEM. The present technology can be applied to a projection apparatus.
摘要:
An improved particle effect projector is disclosed that reduces the energy density of a laser beam projected through a movie theater or other entertainment venue, comprising an F-theta lens, a beam expander and a beam focuser with a long focal length that approximates the distance between the particle effect projector and the movie screen or other surface onto which the particle effect beam is being projected.
摘要:
Device (1) for projecting an image into a display area (2), with an imager (31) generating the picture, a first projection device (30) for generating a real intermediate image (R), a screen (5) onto which the first projection device (32) projects the intermediate image (R) and to a second projection device (9) projecting the intermediate image (R) into the display area (2). In order to project the image with the least possible loss of brightness, the invention provides that main beam directions (H, H′, H″) of the screen (5) point into an entrance pupil (20) of the second projection device (9).
摘要:
Disclosed is an enlargement optical system configured to form an image of an object at an enlargement side, including a lens system and a mirror system in order from a side of the object, the lens system including at least one lens, the mirror system including a first mirror and a second mirror in order from a side of the object, and the second mirror being an concave mirror, wherein an intermediate image conjugate to the object is formed at a side of the object with respect to the second mirror and the first mirror is held to be capable of adjusting a position thereof.
摘要:
The present invention relates to an apparatus for partitioning a sampling region on a solid surface and a method for collecting a microbial sample from a solid surface, in which an optimal sampling region is partitioned on a solid surface using a light source without bringing the solid surface into direct contact with a ruler or a partitioning tool. With the apparatus and method, a solid surface can be prevented from being contaminated during partitioning process, accuracy of sampling operation can be increased, partitioning operation can be continuously performed in a simple manner, and cost of sampling operation can be reduced.
摘要:
An imaging system having reduced susceptibility to thermally induced stress birefringence, comprising; a relay lens, which images the object plane onto an intermediate image plane; a projection lens, which images the intermediate image plane onto the display surface. The lens elements that are immediately adjacent to a relay lens aperture stop and a projection lens aperture stop are fabricated using glasses having a negligible susceptibility to thermal stress birefringence, and the other lens elements are fabricated using glasses having at most a moderate susceptibility to thermal stress birefringence as characterized by the thermal stress birefringence metric.
摘要:
The invention relates to a projection objective comprising at least one lens and intended to transmit a divergent light beam onto a flat screen. A hyperbolically shaped mirror is oriented so as to receive, on its convex face, the light emanating from the lens.The invention also relates to a corresponding projection apparatus.