Earlier, a California company developed another kind of contact lens using LED technology.

早些时候，加利福尼亚一家公司开发了另一种使用 LED 技术的隐形眼镜。

youdao

They integrated miniature antennas, control circuits, an LED and radio chips into the lens using optoelectronic components they built from scratch.

他们使用自己从零开始制造的光电子元器件，将微型天线、控制电路、一块LED和无线芯片集成到隐形眼镜中。

youdao

With smooth lens, the LED light color better, even centralized spot, no noise, no dark shadows.

使用光面透镜，使LED光色更佳，光斑均匀集中，无杂色，无阴影暗区。

youdao

Starting at the back, the removable battery cover has a matte, almost soft-touch finish, save for a plastic section surrounding the camera lens and LED flash.

ENGADGET: HTC Desire X review: one last hurrah for a former flagship?

The Transformer Pad Infinity has a 2MP front camera for HD video conferencing along with an 8MP rear camera with a large F2.2 aperture, 5-element lens and LED flash for stunning high quality images or HD video capture.

ENGADGET: ASUS rebrands its tablets 'Transformer Pads,' announces the high-end Infinity Series with either Tegra 3 or Snapdragon's S4 chip

Packed with advanced imaging technology, the HTC TITAN II features a 16-megapixel camera with a wide-angle lens, autofocus, dual LED flash, red eye reduction, image stabilization, a backside-illuminated sensor and a physical camera button, offering a viable replacement for digital point-and-shoot cameras.

ENGADGET: HTC Titan II coming to AT&T, finally delivers LTE to Mango lovers