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.
Claims20
An optical device comprising:
- a lens assembly comprising at least one lens for receiving light 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 holder has a substantially tubular shape;
- a lower part of the opening has a recess constituting a passage between the holder and an inner surface of the housing, which surrounds the holder;
- the housing has a depressed area on a top thereof;
- the depressed area defines an open space in front of the lens assembly;
- and
- the opening of the housing faces to the open space.
An optical device comprising:
- a lens assembly comprising at least one lens for receiving light 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 holder has a substantially tubular shape;
- at least one of the holder and the housing has a recess constituting a passage between the holder and an inner surface of the housing, which surrounds the holder;
- the housing has a depressed area on a top thereof;
- the depressed area defines an open space in front of the lens assembly;
- and
- the opening of the housing faces to the open space.
Dependencies are inferred from the claim text.