公开(公告)号：US06285416B1

公开(公告)日：2001-09-04

申请号：US09306471

申请日：1999-05-06

申请人： John David Mitchell ,  Livyn Obiajuru Okorocha

发明人： John David Mitchell ,  Livyn Obiajuru Okorocha

IPC分类号： H04N322

CPC分类号： G02B7/04

摘要： An apparatus and method for locking a focus position of a lens assembly without causing the lens cell to tilt, comprising: a spacer interposed between the lens cell and the focus mount. The spacer is received into a sleeve that is integral with the focus mount. The sleeve projects radially outward from the focus mount such that the spacer can be raised and lowered radially with respect to the focus mount. The spacer has a cylindrical body with a radial flange at one end. Moreover, the spacer has two ridges that extend downward from a lower surface of the flange, each of which is received into a corresponding groove on the sleeve, thus, preventing the spacer from rotating within the sleeve. The spacer also has an upwardly raised rim extending from an upper surface of the flange. The rim is slidably secured into a slot of the focus mount, which prevents lateral movement of the spacer. Further, a bolt is coupled to an opening within the spacer, such that one end of the bolt is disposed and secured within the spacer and the other end of the bolt extends radially outward through the slot of the focus mount. A nut is secured onto the bolt. After focusing the lens cell assembly, the nut is tightened onto the bolt in order to maintain focus of the lens cell assembly. The tightening of the nut brings an upper surface of the flange of the spacer into frictional engagement with an interior surface of the focus mount, which prevents the tilting of the lens cell within the focus mount, thus, maintaining a focus position of the lens assembly.

摘要翻译： 一种用于锁定透镜组件的聚焦位置而不使透镜单元倾斜的装置和方法，包括：插入在透镜单元和聚焦底座之间的间隔件。 间隔件被接收到与聚焦装置成一体的套筒中。 套筒从聚焦架径向向外突出，使得间隔件能够相对于聚焦座径向升高和降低。 间隔件具有在一端具有径向凸缘的圆柱体。 此外，间隔件具有从凸缘的下表面向下延伸的两个脊，每个脊被容纳在套筒上的相应凹槽中，因此防止间隔件在套筒内旋转。 间隔件还具有从凸缘的上表面延伸的向上凸起的边缘。 边缘可滑动地固定到聚焦装置的狭槽中，这防止间隔件的横向移动。 此外，螺栓联接到间隔件内的开口，使得螺栓的一端设置并固定在间隔件内，并且螺栓的另一端径向向外延伸穿过聚焦座的槽。 螺母固定在螺栓上。 在聚焦透镜组件后，将螺母拧紧到螺栓上，以保持透镜组件的聚焦。 螺母的紧固使得间隔件的凸缘的上表面与聚焦装置的内表面摩擦接合，这防止透镜单元在聚焦架内的倾斜，从而保持透镜组件的聚焦位置 。

公开(公告)号：US06196755B1

公开(公告)日：2001-03-06

申请号：US09305938

申请日：1999-05-06

申请人： Livyn Obiajuru Okorocha ,  Wilton Ray Purvis

发明人： Livyn Obiajuru Okorocha ,  Wilton Ray Purvis

IPC分类号： F16B722

CPC分类号： H04N9/3141 ,  F16B2200/50 ,  G02B7/021 ,  Y10T403/5786 ,  Y10T403/606

摘要： The invention provides a locking device for locking two matching lens cell halves of a lens cell. In particular, the invention resides in clips which are located at the joint where the two cell halves mate. The clips, which are molded as part of each cell half, are each comprised of a male member which is inserted into a female member. The male member includes a flexible tab which is deflected when inserted into the female member. After insertion, it is maintained in a deformed state, that is the tab is maintained by the female member so that it is bent from its original position. As a result, a bending moment is induced and maintained in the tab and that moment pushes the tab against an outer wall of the female member. Consequently, forces are established which lock the male member in place. Additionally, the wall of the female member exerts a force on the tab and that force, which is inwardly directed, serves to lock together the two halves and ensures retention of the lens units within the lens cell.

摘要翻译： 本发明提供一种用于锁定透镜单元的两个匹配的透镜单元半部的锁定装置。 特别地，本发明在于位于两个电池半部配合的接头处的夹子。 作为每个电池半部分的模制件的夹子各自包括插入到阴构件中的阳构件。 阳构件包括当插入到阴构件中时挠曲的挠性突片。 在插入之后，它保持在变形状态，即，凸片由阴构件保持，使得其从其初始位置弯曲。 结果，引起弯曲力矩并保持在凸片中，并且该时刻将凸片推向阴构件的外壁。 因此，建立了将男性构件锁定在适当位置的力。 此外，阴构件的壁在翼片上施加力，并且向内指向的力用于将两个半部锁定在一起并确保透镜单元保持在透镜单元内。