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    • 3. 发明授权
    • Uneven-pattern reading apparatus
    • 不均匀读取装置
    • US06414749B1
    • 2002-07-02
    • US09459925
    • 1999-12-14
    • Tatsuki OkamotoYukio SatoJunichi NishimaeHiroyuki Kawano
    • Tatsuki OkamotoYukio SatoJunichi NishimaeHiroyuki Kawano
    • G06K974
    • G06K9/00046
    • An uneven-pattern reading apparatus includes a detecting prism having a detecting surface on which an uneven pattern is placed, an incident surface upon which an incident light beam for illuminating the uneven pattern is incident, and an emergent surface from which a light beam reflected from the uneven pattern on the detecting surface is emergent, angles between the respective detecting, incident, and emergent surfaces providing that the incident light beam is applied to the uneven pattern and the light reflected from the detecting surface is emergent from the emergent surface; an incident-light-beam converger for causing an incident light beam from a light source to be incident upon the incident surface after collimating or converging the incident light beam; an imaging device for detecting a reflected image emergent from the detecting prism; a converging optical system for collimating or converging the emergent light beam emergent from the emergent surface; and a processing device for identifying the uneven pattern on the basis of the image picked up by the imaging device, wherein an imaging surface of the imaging device is located closer to an emergent surface side than a focusing position of the converging optical system.
    • 不均匀图案读取装置包括:检测棱镜,其具有设置有不平坦图案的检测面,入射面,用于照射不均匀图案的入射光束入射的入射面;以及出射表面, 检测表面上的不均匀图案出现,使得入射光束被施加到不均匀图案并且从检测表面反射的光的各个检测入射和出射表面之间的角度从出射表面出射; 用于使来自光源的入射光束在入射光束准直或会聚之后入射到入射面上的入射光束会聚; 用于检测从所述检测棱镜出射的反射图像的成像装置; 用于使出射光束从出射表面出射的准直或会聚的会聚光学系统; 以及处理装置,用于基于由成像装置拾取的图像来识别不均匀图案,其中,成像装置的成像表面位于比会聚光学系统的聚焦位置更靠近出射表面侧。
    • 4. 发明授权
    • Irregular pattern reader
    • 不规则图案阅读器
    • US06912300B1
    • 2005-06-28
    • US09621553
    • 2000-07-21
    • Tatsuki OkamotoYukio SatoJunichi NishimaeHiroyuki Kawano
    • Tatsuki OkamotoYukio SatoJunichi NishimaeHiroyuki Kawano
    • G02B5/04G06K9/00
    • G06K9/00046
    • An object of the invention is to achieve a small and thin irregular pattern reader comprising: a prism possessing a detection surface on which a subject to be detected having an irregular pattern is put and an incident plane having a first angle of inclination to the detection surface and emitting a light reflected on the detection surface corresponding to an incident light incident upon the incident plane; a first optical system possessing a light source and causing a light from the light source to be incident upon the incident plane of the prism with its optical axis substantially in parallel to the detection surface; and a second optical system for transmitting the emission light emitted from the prism to an image pick-up device.
    • 本发明的目的是实现一种小而薄的不规则图案读取器,其包括:具有检测表面的棱镜,待检测物体具有不规则图案,并且具有与检测表面具有第一倾斜角的入射平面 并发射与入射到入射面上的入射光对应的检测面反射的光; 第一光学系统具有光源并使来自光源的光入射到棱镜的入射平面上,其光轴基本上与检测表面平行; 以及第二光学系统,用于将从棱镜发射的发射光传输到图像拾取装置。