Inner mirror structure with built-in camera
AssigneeMurakami Corporation
InventorHidehiro SHIRATORI
Life of this patent
Estimating the term…
Abstract
To make a ghost image that is caused by a step place between a lens and a back plate inconspicuous in a configuration in which an optical axis of an infrared camera is disposed tilted relative to a normal direction of a plate face of a mirror element. A flat surface portion and a recessed surface portion are formed on the back plate disposed behind the mirror element. At least a part of a lens exposure opening is formed in an inclined surface of the recessed surface portion, the inclined surface being inclined relative to the flat surface portion. The lens of the infrared camera is disposed on the inclined surface with the optical axis titled relative to the normal direction of the flat surface portion, following the lens exposure opening.
Claims11
An inner mirror structure with a built-in camera comprising:
- a housing;
- a mirror element that has optical characteristics of reflecting visible light and transmitting infrared light, and is disposed at a position where the mirror element closes an opening of a front face of the housing;
- a back plate that is housed in an internal space of the housing surrounded by the housing and the mirror element, and is disposed facing a back face of the mirror element behind the mirror element;
- and
- an infrared camera that is disposed at a position behind the back plate in the internal space of the housing, has a lens exposed toward the back face of the mirror element through a lens exposure opening formed in the back plate, and receives infrared light that passes through the mirror element and enters the infrared camera, wherein a front face of the back plate has a flat surface portion disposed parallel to a plate face of the mirror element, and a recessed surface portion recessed relative to the flat surface portion,
- at least a part of the lens exposure opening is formed in an inclined surface of the recessed surface portion, the inclined surface being inclined relative to the flat surface portion, and
- the lens of the infrared camera is disposed on the inclined surface with an optical axis tilted relative to a normal direction of the flat surface portion, following the lens exposure opening.
Dependencies are inferred from the claim text.