Optical device and method of producing same
AssigneeFujikura Ltd.
InventorKohei Matsumaru
Life of this patent
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Abstract
An optical device including a housing; an optical element contained in the housing; and a cover that seals an opening of the housing. The cover includes a frame member having an opening that serves as a window section, and a window section glass plate bonded to the frame member and seals the opening of the frame member. The frame member has a thickness which is greater than that of the window section glass plate, an upper surface of the frame member protrudes past an upper surface of the window section glass plate, a lower surface of the frame member protrudes past a lower surface of the window section glass plate.
Claims7
An optical device comprising:
- a housing;
- an optical element contained in the housing;
- and
- a cover seals an opening of the housing, the cover including:
- a frame member having an opening that serves as a window section, and
- a window section glass plate bonded to the frame member and that seals the opening of the frame member, wherein
- the frame member has a thickness which is greater than that of the window section glass plate,
- an upper surface of the frame member protrudes past an upper surface of the window section glass plate, and
- a lower surface of the frame member protrudes past a lower surface of the window section glass plate.
The optical device as set forth in 4, wherein the glass-protecting wall section of the frame member is provided discontinuously around the seat section.
A method of producing an optical device, the method comprising:
- (a) sealing an opening of a frame member by use of a window section glass plate, wherein the opening serves as a window section;
- and
- (b) sealing an opening of a housing that contains an optical element by use of a cover, wherein
- the frame member has a thickness which is greater than that of the window section glass plate,
- the window section glass plate seals the opening of the frame member in the step (a) in a manner such that (i) an upper surface of the frame member protrudes past an upper surface of the window section glass plate and (ii) a lower surface of the frame member protrudes past a lower surface of the window section glass plate.
Dependencies are inferred from the claim text.