公开(公告)号：US5606434A

公开(公告)日：1997-02-25

申请号：US269919

申请日：1994-06-30

申请人： Michael R. Feldman ,  Bob T. Kolste ,  W. Hudson Wlech ,  Hedong Yang

发明人： Michael R. Feldman ,  Bob T. Kolste ,  W. Hudson Wlech ,  Hedong Yang

IPC分类号： G02B5/18 ,  G02B5/32 ,  G02B6/26 ,  G02B6/42 ,  G02B27/00 ,  G03H1/02 ,  G03H1/08

CPC分类号： G02B27/0037 ,  G02B27/4272 ,  G02B27/4288 ,  G02B27/4294 ,  G02B5/1876 ,  G02B5/188 ,  G02B5/189 ,  G02B5/32 ,  G02B6/262 ,  G02B6/4206

摘要： An aromatic optical system that preferably includes a light source for emitting light therefrom, an achromatic optical element positioned to receive light emitted from the light source, and an optical detector positioned to receive and detect light passing through the optical element. The achromatic optical element preferably includes a substrate having opposing sides, a first computer generated hologram positioned on one side of the substrate and adapted to receive light emitted from the light source, and a second computer generated hologram positionally aligned on the opposite side of the substrate and adapted to receive light passing through the substrate from the first hologram at a predetermined location thereon. A method of forming an achromatic diffractive optical element is also provided which includes the steps of determining a first data set comprising a plurality of discrete phase values and discrete transition values and selecting from the first data set phase values and transition values to form a second data set for defining first and second holograms. A discrete value of the second data set is then replaced by another discrete value from the first data set. A change of an optical system error function is then determined responsive to the replacement in the second data set. If the error function is reduced, the new data set is retained.

摘要翻译： 优选地包括用于从其发射光的光源的芳族光学系统，定位成接收从光源发射的光的消色差光学元件，以及定位成接收和检测通过光学元件的光的光学检测器。 消色差光学元件优选地包括具有相对侧面的基板，第一计算机产生的全息图位于基板的一侧上并且适于接收从光源发射的光，以及第二计算机产生的全息图，位于对准在基板的相对侧 并且适于在其上的预定位置处接收从第一全息图穿过基板的光。 还提供了一种形成消色差衍射光学元件的方法，其包括以下步骤：确定包括多个离散相位值和离散转变值的第一数据集，并从第一数据集相位值和转换值中选择形成第二数据 用于定义第一和第二全息图。 然后，第二数据集的离散值被来自第一数据集的另一个离散值替换。 然后响应于第二数据组中的替换来确定光学系统误差函数的改变。 如果误差函数减少，则保留新的数据集。