公开(公告)号：WO1982002955A1

公开(公告)日：1982-09-02

申请号：PCT/US1982000225

申请日：1982-02-22

Applicant: GENERAL OPTRONICS CORP

Inventor： GENERAL OPTRONICS CORP ,  STRAMONDO ANTHONY J

IPC: G02B05/32

CPC classification number: G02B26/106

Abstract: An improved diffraction grating scanner, in which anamorphic imaging techniques are utilized to correct the curvature of the scan, in the plane of the scan, as well as correction for field curvature so as to provide improved resolution and increased length of scan. Basically, the scanner system may comprise either refractive or reflective elements, including cylindrical lenses (13, 15, 36, 38) and reflectors (27, 33, 37, 39) of circular or elliptical cross-section and toroidal reflectors (20) and lenses as well. In addition, such system will customarily include one or more spherical elements, but at least one cylindrical or toroidal element must be provided. The anamorphic imaging correction apparatus can be utilized with reflector scanners, including polygonal and single-mirror scanners, as well as with diffraction grating-type scanners.

Abstract translation: 改进的衍射光栅扫描器，其中使用变形成像技术来校正扫描的平面中的扫描曲率，以及校正场曲率，从而提供改进的分辨率和增加的扫描长度。 基本上，扫描仪系统可以包括折射或反射元件，包括圆柱形透镜（13,15,36,38）和圆形或椭圆形横截面的反射器（27,33,37,39）和环形反射器（20）和 镜头也是。 此外，这种系统通常包括一个或多个球形元件，但是必须提供至少一个圆柱形或环形元件。 变形成像校正装置可以与反射器扫描器一起使用，包括多边形和单镜像扫描仪，以及衍射光栅型扫描仪。