Abstract: The lock mechanism of the present disclosure has a housing, a lid, a lock section, and a buffer member. The housing has a storage section, and a first groove and an opening that are disposed outside the storage section. The lid is removable from the device or disposed on it so as to be openable/closable, and covers the storage section. The lock section has a first protrusion to be fitted with the lid on one end and a second protrusion to be inserted in the opening on the other end. The buffer member, which is elastically deformable, is disposed in the first groove, and abuts the housing, the lid, and the second protrusion of the lock section. The lock section rotates on a rotation shaft disposed between the first protrusion and the second protrusion.

Abstract: An optical device ensuring projection of light over a wide range as well as reduction in size, and a mobile apparatus mounted with the optical device are provided. The optical device (100) includes a light-projecting unit (110) and a light-receiving unit (120). The light-projecting unit (110) has a projector (114) and a lenticular sheet (112) arranged in layers. First and second cylindrical lens arrays having their generatrices orthogonal to each other are formed on the respective surfaces of the sheet (112). The light-receiving unit (120) has a light-receiver (124). The light-projecting unit (110) and the light-receiving unit (120) are arranged adjacent to each other in an integrated manner so that the light-receiver (124) can sense the light emitted from the projector (114) via the sheet (112) and then reflected from an object.

Abstract: An optical device ensuring projection of light over a wide range as well as reduction in size, and a mobile apparatus mounted with the optical device are provided. The optical device (100) includes a light-projecting unit (110) and a light-receiving unit (120). The light-projecting unit (110) has a projector (114) and a lenticular sheet (112) arranged in layers. First and second cylindrical lens arrays having their generatrices orthogonal to each other are formed on the respective surfaces of the sheet (112). The light-receiving unit (120) has a light-receiver (124). The light-projecting unit (110) and the light-receiving unit (120) are arranged adjacent to each other in an integrated manner so that the light-receiver (124) can sense the light emitted from the projector (114) via the sheet (112) and then reflected from an object.