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OPTICAL UNIT, IMAGE PICKUP DEVICE USING THE OPTICAL UNIT, AND ON-VEHICLE IMAGE DISPLAY DEVICE USING THE IMAGE PICKUP DEVICE
OPTICAL UNIT, IMAGE PICKUP DEVICE USING THE OPTICAL UNIT, AND ON-VEHICLE IMAGE DISPLAY DEVICE USING THE IMAGE PICKUP DEVICE
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机译:光学单元,使用该光学单元的图像拾取装置以及使用该图像拾取装置的车载图像显示装置
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摘要
A lens unit or the like with improved ability to capture proper images by reducing the likelihood that water droplets will adhere to the lens surface and change the refractive index. A surface of a lens portion (1) is imparted with a water-repellent property and a surface of a non-lens portion (2), surrounding the lens portion (1), is imparted with a hydrophilic property. As a result, if droplets on the surface of the lens portion (1) contact the non-lens portion (2), the droplets are guided from the water-repellent surface of the lens portion (1) to the hydrophilic surface of the non-lens portion (2) thereby reducing the number of droplets residing on the lens portion (1).
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