Optical device and imaging device with mechanism for reducing condensation
AssigneeDenso Corporation
InventorKoji Wato
Life of this patent
Estimating the term…
Abstract
In an optical device, a lens assembly includes a lens for receiving light and a holder for holding the lens. A circuit board performs at least one process based on the received light. A housing has an opening and is configured to house the lens assembly and the circuit board therein such that at least part of the circuit board faces the lens assembly, and the lens assembly is exposed via the opening. A mechanism for defining a passage located around the lens assembly to communicate with the opening. The passage guides air, entering an inside of the housing via the opening, so as not to be directed toward the circuit board.
Claims13
An optical device comprising:
- a lens assembly comprising:
- at least one lens having an optical axis for receiving light from an object located at a first side of the optical axis;
- and
- a holder for holding the at least one lens;
- a circuit board for performing at least one process based on the received light;
- and
- a housing having an opening and configured to house the lens assembly and the circuit board therein, the lens assembly being exposed to an outside of the housing via the opening,
- wherein:
- the housing comprises a top wall;
- the opening comprises a recess formed in the top wall of the housing;
- the recess communicates with an inside of the housing and concavely extends in a second side of the optical axis, the second side of the optical axis being opposite to the first side thereof;
- and
- the lens assembly is arranged below the recess.
Dependencies are inferred from the claim text.