专利汇可以提供Interactive photographic transparency display device专利检索,专利查询,专利分析的服务。并且A device for displaying photographic transparencies which is capable of interaction with an operator employing a lasing-diode light pen. Two optical systems are provided which utilize filtering means for restricting light conduction within two mutually exclusive bands of wavelengths. One optical system conducts exclusively light having wavelengths which reside within the visual spectrum, and is used for projecting an image from a transparency onto a viewing screen. The second optical system conducts exclusively light having wavelengths within the infrared region, and is used for detecting operator response to an image displayed on the viewing screen. The transparencies are coated over a substantial area thereof with a light filtering material which will inhibit the transmission of infrared light, but will transmit light within the visual spectrum. A small area on the transparency, which corresponds to the correct response, is not coated with the light filtering material and will transmit all light. A photodetector is disposed within the second optical system for detecting light from the lasing-diode light pen. An electrical circuit is also provided between the light pen and the photodetector for improving the signal-to-noise ratio.,下面是Interactive photographic transparency display device专利的具体信息内容。
标题 | 发布/更新时间 | 阅读量 |
---|---|---|
一种芯片的封装方法 | 2020-05-08 | 274 |
显示装置 | 2020-05-12 | 38 |
显示屏组件、电子装置及显示屏组件的制作方法 | 2020-05-15 | 214 |
显示模组及电子设备 | 2020-05-08 | 597 |
基于蚕丝的可拉伸可透气的电子纸器件及制备方法 | 2020-05-16 | 112 |
电容触控模组及显示屏 | 2020-05-15 | 663 |
触控面板及其制备方法 | 2020-05-08 | 651 |
LED灯珠及背光模组 | 2020-05-18 | 142 |
LED灯珠及背光模组 | 2020-05-17 | 976 |
触控显示组件及电子设备 | 2020-05-12 | 67 |
高效检索全球专利专利汇是专利免费检索,专利查询,专利分析-国家发明专利查询检索分析平台,是提供专利分析,专利查询,专利检索等数据服务功能的知识产权数据服务商。
我们的产品包含105个国家的1.26亿组数据,免费查、免费专利分析。
专利汇分析报告产品可以对行业情报数据进行梳理分析,涉及维度包括行业专利基本状况分析、地域分析、技术分析、发明人分析、申请人分析、专利权人分析、失效分析、核心专利分析、法律分析、研发重点分析、企业专利处境分析、技术处境分析、专利寿命分析、企业定位分析、引证分析等超过60个分析角度,系统通过AI智能系统对图表进行解读,只需1分钟,一键生成行业专利分析报告。