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US 11,867,562 B2Granted
Optical devices
AssigneeVisEra Technologies Company Limited
InventorsLai-Hung Lai, Chin-Chuan Hsieh, Chien-Ho Yu
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Abstract
An optical device is provided. The optical device includes a time-of-flight (TOF) sensor array, a photon conversion thin film, and a light source. The photon conversion thin film is disposed above the time-of-flight sensor array. The light source emits light with a first wavelength towards the photon conversion thin film to be converted into light with a second wavelength received by the time-of-flight sensor array. The second wavelength is longer than the first wavelength.
Claims19
An optical device, comprising:
- a time-of-flight (TOF) sensor array;
- a photon conversion thin film disposed above the time-of-flight sensor array;
- a light source which emits light with a first wavelength towards the photon conversion thin film to be converted into light with a second wavelength received by the time-of-flight sensor array, wherein the second wavelength is longer than the first wavelength;
- and
- an optical component group disposed on the time-of-flight sensor array, wherein the optical component group comprises a pinhole-type collimator and a filter, and the filter comprises a longpass (LP) filter or a narrow bandpass (NBP) filter.
2 more elements
Dependencies are inferred from the claim text.