Patent ID: 11893756
Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 6:
7. A depth camera device, comprising:
a housing including a front panel having a front window through which light is transmittable out of and into the housing and a rear panel having a rear window opposite the front window;
an optical emitter within the housing, wherein the optical emitter emits light in a first spectral band;
a photosensitive first detector within the housing, wherein the first detector is configured to detect light in the first spectral band and generate a first detection signal in response to the detected light in the first spectral band;
a photosensitive second detector within the housing, wherein the second detector is configured to detect light in a second spectral band different from the first spectral band and generate a second detection signal in response to the detected light in the second spectral band;
a front illumination optical path along which light emitted by the optical emitter travels from the optical emitter to the front window to exit the housing;
a front detection optical path along which light in the first spectral band entering the housing through the front window travels from the front window to the first detector, wherein the light in the first spectral band entering the housing through the front window comprises light in the first spectral band reflected from at least one object in a field of view outside the housing;
a front supplemental detection optical path along which light in the second spectral band entering the housing through the front window travels from the front window to the second detector;
a rear illumination optical path along which light emitted by the optical emitter travels from the optical emitter to the rear window to exit the housing; and
a rear detection optical path along which light in the first spectral band entering the housing through the rear window travels from the rear window to the first detector, wherein the light in the first spectral band entering the housing through the rear window comprises light in the first spectral band reflected from at least one object in a further field of view outside the housing; and
a rear supplemental detection optical path along Ih light In the second spectral band entering the housing through the rear window travels from the rear window to the second detector, wherein the light in the second spectral band entering the housing through the rear window comprises light in the second spectral band reflected from or emitted by the at least one object in the further field of view,
wherein a portion of the front illumination optical path leading to the front window coincides with a portion of the front detection optical path leading from the front window,
wherein a portion of the rear illumination optical path leading to the rear window coincides with a portion of the rear detection optical path leading from the rear window, and
wherein the light in the second spectral band entering the housing through the front window comprises light in the second spectral band reflected from or emitted by the at least one object in the field of view.