Semiconductor device package

A semiconductor device package, comprising:

• a light-emitting device having a light-emitting surface, wherein the light-emitting surface of the light-emitting device has a first side and a second side angled with the first side, and a length of the first side of the light-emitting surface is greater than a length of the second side of the light-emitting surface;
• a diffuser structure above the light-emitting surface of the light-emitting device;
• and
• an optical sensor disposed below the diffuser structure and adjacent to the first side of the light-emitting surface, the optical sensor being configured to detect a reflected light reflected by the diffuser structure.

A semiconductor device package, comprising:

• a light-emitting device;
• a diffuser structure above the light-emitting device, wherein a light emitted by the light-emitting device and reflected by the diffuser structure forms a luminous intensity pattern, the luminous intensity pattern has a first region having a maximum light intensity and a second region having a light intensity that is about 10% to about 30% of the maximum light intensity of the first region;
• and
• an optical sensor disposed in the second region of the luminous intensity pattern, the optical sensor being configured to detect a reflected light reflected by the diffuser structure.