Visera Technologies Company Limited

Shih-Yu Ho

Chin-Chuan Hsieh

Kuo-Feng Lin

Yueh-Ching Cheng

An optical structure is provided. The optical structure includes a sensor, a bandpass filter and a plurality of protrusions. The bandpass filter is disposed above the sensor. The protrusions are disposed on the bandpass filter. The bandpass filter allows light with a wavelength of 700 nm to 3,000 nm to pass through. The protrusions have a size distribution that controls the phase of the incident light to be between 0 and 2π.

Optical structure having polymer-covered protrusions contacting bandpass filter

An optical structure is provided. The optical structure includes an optical element and a plurality of protrusions. The optical element has a planarized top surface. The plurality of protrusions are disposed on the planarized top surface, wherein each of the plurality of protrusions independently has a size in the subwavelength dimensions.

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Hsinchu, Taiwan

Shih-Yu Ho