Optical device housing
AssigneeTexas Instruments Incorporated
InventorsStephen John Fedigan, David Patrick Magee
Life of this patent
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Abstract
An apparatus for mitigating contamination of an optical device comprises an open-topped, closed-sided, and closed-bottomed housing cup partially defining a protected volume to enclose the optical device. A housing cap encloses a top of the housing cup and partially defines the protected volume. The housing cap includes a top collar having an open central aperture. A top cover laterally spans the central aperture of the top collar. An interface structure circumscribes the top cover to suspend the top cover downwardly into the housing cup from the top collar. The interface structure prevents direct contact between the top cover and the top collar.
Claims20
An apparatus comprising:
- an open-topped, closed-sided, and closed-bottomed housing cup partially defining a protected volume to enclose an optical device;
- and
- a housing cap enclosing a top of the housing cup and partially defining the protected volume, the housing cap including:
- a top cover laterally spanning a central aperture of a top collar and covering an upper longitudinal dimension of the protected volume, the top cover being laterally separated from the housing cup by an insulation gap,
- the top collar laterally surrounding an outer portion of a top cover rim of the top cover and having an open central aperture, and
- an interface structure circumscribing the top cover to suspend the top cover downwardly into the housing cup from the top collar, the interface structure preventing direct contact between the top cover and the top collar, and the interface structure is not in contact with the protected volume.
An optical device housing, comprising:
- a sidewall having longitudinally spaced top and bottom sidewall rims, the sidewall enclosing a lateral dimension of a protected volume;
- a bottom plate laterally spanning the bottom sidewall rim to enclose a bottom side and lower longitudinal dimension of the protected volume;
- a housing cap including
- a top cover laterally spanning a portion of the top sidewall rim and covering an upper longitudinal dimension of the protected volume, the top cover being laterally separated from the top sidewall rim by an insulation gap, and
- a top collar laterally surrounding an outer portion of the top sidewall rim, the top collar laterally spanning the insulation gap to complete longitudinal enclosure of the top side of the protected volume;
- and
- an interface structure at least partially located longitudinally between the top cover and the top collar, the interface structure preventing direct contact between the top cover and the top collar, and the interface structure is not in contact with the protected volume.
Dependencies are inferred from the claim text.