Infrared touch screen with optical lens
The utility model provides an infrared touch screen with optical lenses, which comprises a touch screen body, infrared transmitting diodes and infrared receiving photosensitive tubes, wherein the infrared transmitting diodes and the infrared receiving photosensitive tubes are embedded or stuck or we...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | The utility model provides an infrared touch screen with optical lenses, which comprises a touch screen body, infrared transmitting diodes and infrared receiving photosensitive tubes, wherein the infrared transmitting diodes and the infrared receiving photosensitive tubes are embedded or stuck or welded on the edges of the screen body and are in one-to-one correspondence. Both the front of transmitting ends and the front of receiving ends of the infrared transmitting diodes and the infrared receiving photosensitive tubes are provided with cylinder optical lenses. The utility model can effectively enhance infrared receiving signals, and can raise the anti-jamming capability of the infrared touch screen. The utilization rate of infrared transmitting light is raised; the drive current of the infrared transmitting diodes is reduced; the power consumption of the infrared transmitting diodes is reduced, and the service life of the infrared transmitting diodes is increased. |
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