摘要:
An optical assembly including a polarizing beam splitter (PBS) to receive a laser beam from a light source. A micro-electro-mechanical systems (MEMS) mirror disposed in a support structure of the assembly, wherein the MEMS mirror is rotatable and is configured to receive the laser beam from the PBS and to reflect an exit beam. A phase retardation layer deposited on the MEMS mirror.
摘要:
A scanning projector (100) and method is provided that uses at least one multi-stripe laser (102) to generate the laser light for the scanned image. Specifically, the multi-stripe laser includes at least a first laser element and a second laser element formed together on a semiconductor die. The first laser element is configured to output a first laser light beam, and the second laser element is configured to output a second laser light beam. At least one scanning mirror is configured to reflect the first laser light beam and the second laser light beam, and a drive circuit is configured to provide an excitation signal to excite motion of the at least one scanning mirror. Specifically, the motion is excited such that the at least one scanning mirror reflects the first laser light beam and the second laser light beam in a raster pattern of scan lines.
摘要:
A retinal light scanning engine (RLSE) to write light corresponding to an image on the retina of a user. A light source of the retinal light scanning engine forms a single point of light on the retina at any single, discrete moment in time. To form a complete image, the RLSE uses a pattern to scan or write on the retina to provide light to millions of such points over one time segment corresponding to the image. The RLSE changes the intensity and color of the points drawn by the pattern by simultaneously controlling the power of different light sources and movement of an optical scanner to display the desired content on the retina according to the pattern. In addition, the pattern may be optimized for writing an image on the retina. Moreover, multiple patterns may be used to increase or improve the field-of-view of the display.
摘要:
본 발명은 멤스 스캐너에 관한 것으로, 하부 프레임, 한 쌍의 상부 프레임, 한 쌍의 레버, 한 쌍의 고정 전극부 및 구동 전극부를 포함한다. 하부 프레임은 상부면에 캐버티가 형성되어 있고, 캐버티의 중심에 관통 구멍이 형성되어 있다. 한 쌍의 상부 프레임은 캐버티 주위의 하부 프레임의 상부면에 부착되어 중심 부분에 설치 공간을 형성한다. 한 쌍의 레버는 관통 구멍을 중심으로 양쪽의 캐버티의 바닥면에 부착되고, 한 쌍의 상부 프레임에 각각 연결된다. 한 쌍의 고정 전극부는 일측이 한 쌍의 레버에 각각 연결되고, 타측이 상부 프레임에 연결되어 수평면에 대해서 기울어지게 형성된 복수의 고정 전극을 구비하며, 복수의 고정 전극이 관통 구멍을 향하여 형성된다. 그리고 구동 전극부는 한 쌍의 고정 전극부의 고정 전극들에 교번되게 배치되며 상부 프레임의 상부면에 평행하게 배치되는 복수의 구동 전극이 양쪽에 형성되어 있고, 복수의 구동 전극이 형성된 쪽에 반대되는 양쪽은 각각 회전 스프링을 매개로 하부 프레임의 상부면에 부착된다.
摘要:
A scanning system for scanning a field of regard (FOR) by dividing it into a plurality of fields of view (FOVs) having different spatial orientations. The system has a scanning unit (10) and a fixed optical system (12) having a line of sight (23). The scanning unit has a plurality of discrete reflective surfaces (30, 32), each having different orientations relative to the reference plane and facing in one of a corresponding plurality of directions of sight to define the FOVs. Each reflective surface has an operative state when its FOV is in optical communication with said optical system and a corresponding inoperative state, and is radially spaced from said reference axis at least in the inoperative state. A switching mechanism (20, 22, 24) is also provided for switching between the reflective surfaces (30, 32) to successively bring them into their operative state while maintaining substantially unchanged their orientation and the spatial orientation of the FOV.
摘要:
A new digital image/video camera that directly acquires random projections of the incident light field without first collecting the pixels/voxels. In one preferred embodiment, the camera employs a digital micromirror array to perform optical calculations of linear projections of an image onto pseudorandom binary patterns. Its hallmarks include the ability to obtain an image with only a single detection element while measuring the image/video fewer times than the number of pixels or voxels - this can significantly reduce the computation required for image/video acquisition/encoding. Since the system features a single photon detector, it can also be adapted to image at wavelengths that are currently impossible with conventional CCD and CMOS imagers.
摘要:
A scanning system (10) and a method permit scanning a desired field-of-view within a maximized field-of-regard at a constant speed without reversing the scan direction about a primary axis (38). The system includes mirror (20) which rotates about the primary axis (38). The mirror (20) is supported for rotation about a flip axis (40) which is perpendicular to the primary axis (38). Rotation of the mirror (20) about the primary axis (38) is divided into a scan period during which the field-of-view is scanned by the mirror (20), and a flip period during which the mirror (20) rotates about the flip axis (40). The mirror (20) is mounted in a gimbal for independent rotation about a secondary axis (24) which is parallel to the primary axis (38). Rotation of the mirror (20) about the secondary axis (24) provides an adjustment of the mirror orientation such that at the end of the scan period the mirror (20) faces the end of the field-of-view, and at the end of the flip period the mirror (20) faces the beginning of the field-of-view.
摘要:
An optical image system includes an image projector and an image generator. The image projector has regions with adjustable brightness levels. The image generator generates an image received from a remote location on the image projector by directing first and second electromagnetic beams onto the regions of the image projector. The first beam changes the brightness levels of the regions in a direction, and the second beam generates the image by changing the brightness levels of predetermined ones of the regions in an opposite direction. Such an image system can capture, transmit, and display an image using an optical signal without converting the optical signal into an electrical signal and back again. Thus, the image system often provides a higher-quality image than conventional electro/optical image systems.