首页> 外国专利> AUTOMATED POCKET-SIZED NEAR VISION TESTER

AUTOMATED POCKET-SIZED NEAR VISION TESTER

机译:口袋大小的自动近景测试仪

摘要

A lightweight, pocket-sized, hand-held near vision test apparatus (18) that selectively retroilluminates different near vision test objects (40) located on an interchangeable near vision test card (32), or alternatively, selectively diplays near vision test objects (40) on a flat panel display screen. The apparatus allows the examiner to electronically direct the patient's attention to selected near vision test objects (40), while providing a baseline amount of contrast illumination.
机译:轻巧,袖珍的手持式近视测试设备(18),可选择性地照亮位于可互换近视测试卡(32)上的不同近视测试对象(40),或者有选择地对近视测试对象进行显示( 40)在平板显示屏上。该设备允许检查者以电子方式将患者的注意力引向选定的近视测试对象(40),同时提供基线量的对比照明。

著录项

相似文献

  • 专利
  • 外文文献
  • 中文文献
获取专利

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号