Abstract: Disclosed are an imaging device and a display device which both have a simple structure without any need of an image conversion. The imaging device includes a lens component group including multiple lens component systems, each of which focuses incident light from the object, thereby creating a non-inverted image of the object, the lens component systems being arranged in an array form and on the same level, and an image capturing mechanism for picking up the created image. In addition, each of the lens component systems includes an afocal optical system and an image-forming system. The afocal optical system includes at least one optical element for inverting an externally incident light ray relative to its optical axis and outputting the light ray. The optical element has uniform refractive index. The image-forming system includes at least one optical element having uniform refractive index throughout its interior.

Abstract: Disclosed are an imaging device and a display device which both have a simple structure without any need of an image conversion. The imaging device includes a lens component group including multiple lens component systems, each of which focuses incident light from the object, thereby creating a non-inverted image of the object, the lens component systems being arranged in an array form and on the same level, and an image capturing mechanism for picking up the created image. In addition, each of the lens component systems includes an afocal optical system and an image-forming system. The afocal optical system includes at least one optical element for inverting an externally incident light ray relative to its optical axis and outputting the light ray. The optical element has uniform refractive index. The image-forming system includes at least one optical element having uniform refractive index throughout its interior.

Abstract: In a three-dimensional imaging device, plural optical fibers which are provided with a lens characteristic by a refractive index distribution which is not uniform in a radial direction, such as a square-law characteristic, and which has the same length are configured so that the length &thgr; is an odd-number multiple of a half period of an optical path, and both ends of the optical fibers are arranged in the same two-dimensional manner. The configuration is used in a plural number so that a three-dimensional object is three-dimensionally imaged and the image is transmitted.

Abstract: An autostereoscopic image apparatus for picking-up an autostereoscopic image and optically transmitting and displaying the autostereoscopic image. The autostereoscopic image apparatus is constructed by an assembly of a plurality of optical fibers each having an equal length and a lens function. The length of each of a plurality of optical fibers is equal to a length that is integer times as long as one period of an optical path in the optical fiber. The first edge surface of each of a plurality of optical fibers is located on the same plane and forms the first edge surface of the optical fiber assembly. The second edge surface of each of a plurality of optical fibers is located on the same plane and forms the second edge surface of the optical fiber assembly. An arrangement at the first edge surface of the optical fiber assembly at the edge surfaces of a plurality of optical fibers and an arrangement at the second edge surface are equal.