When building his prototype, Fergus replaced this filter with another that lets some IR through the lens without flooding the camera's sensors.

在制造暗闪光相机模型机时，费格斯用另外一种允许一些红外光线通过镜头，但不至于滤入太多红外光线，损坏相机传感器的滤光片代替传统滤光片。

youdao

The measurement method and error analysis method of GRIN lens focal spot diameter in IR wavelength are described.

主要介绍GRIN透镜在红外波段聚焦光斑直径的测量方法及误差分析。

youdao

IR image window (lens) Standard, tele or wide Angle lens depending on option purchased.

红外成像窗口(镜头)配置标准，长焦或广角镜头根据所定购的镜头。

youdao

We discussed the extremely narrow display bezel, striking RGB notification ring around the home button, recessed camera lens and IR blaster (for the QRemote functionality).

ENGADGET

Several suggestions have been put forth, ranging from a manufacturing flaw with the sapphire lens of the iPhone 5, to a problem with the IR filter, or a bug in the iOS 6 software.

FORBES: Does Your iPhone 5 Have This Crazy Camera Fault?

"IR cameras cannot 'see' objects or humans behind flames because of the need for a zoom lens that concentrates the rays on the sensor to form the image, " he said.

BBC: fire fighting