Biological feature detection apparatus and electronic terminal

An electronic terminal, comprising a biological feature detection apparatus, wherein the biological feature detection apparatus comprising:

• a light emitting unit and a light receiving unit, wherein the light emitting unit is configured to emit light to a detection surface of an ear, the light emitted by the light emitting unit is processed by the ear and then transmitted to the light receiving unit, and the light receiving unit is configured to receive the light and perform a photoelectric conversion to generate an original electrical signal for biological feature detection,
• a first substrate, a second substrate and a flexible member, wherein the light emitting unit is arranged on the first substrate, the light receiving unit is arranged on the second substrate, the first substrate and the second substrate are connected via the flexible member, and the flexible member is configured to permit adjustment of a relative position and a relative angle between the light emitting unit and the light receiving unit, and the light emitting unit and light receiving unit are in close proximity and insertable in the ear;
• an optical shielding unit and a light guiding unit, wherein the light guiding unit is configured to form enclosures around the light emitting unit and the light receiving unit, and the optical shielding unit is configured to form enclosures around the light emitting unit and the light receiving unit such that the light guiding unit is configured to guide the light emitted by the light emitting unit to the detection surface of the ear and guide the light being processed by the ear to the light receiving unit, and the optical shielding unit is configured to shield or absorb the light emitted by the light emitting unit to prevent the light emitted by the light emitting unit from being directly transmitted to the light receiving unit without being processed by the ear.