Optical module and optical system
First Claim
1. An optical module, comprising:
- a rigid circuit carrier formed with a component-equipped surface and an opposite surface;
a non-packaged semiconductor element flip-chip-mounted on said component-equipped surface;
a lens unit disposed on said opposite surface of said circuit carrier, said lens unit including a lens holder and a lens assembly with at least one lens;
said circuit carrier having an opening formed therein for projecting therethrough electromagnetic radiation from said lens unit onto said semiconductor element;
at least one permanently flexible or springy element disposed between said lens holder and said circuit carrier for biassing said component-equipped surface of said circuit carrier away from said lens holder and against at least one stop element forming a form-lock relationship with said lens unit.
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Accused Products
Abstract
An optical module has a lens holder into which a lens array with three lenses and a diaphragm, for example, is inserted. The lenses and the diaphragm are oriented by way of the geometrical shape thereof such that no further optical adjustment is required. The circuit carrier and the lens unit are adjusted via at least one permanently flexible or springy element which is disposed between the lens holder and the circuit carrier and presses the component-equipped area of the circuit carrier away from the lens holder and against at least one stop element that is in positive contact with the lens unit. In the novel optical module or optical system it is no longer necessary to take into account the thickness tolerance of the circuit carrier and possible adhesives in the tolerance chain of optical modules. The module and the system are particularly suitable interior or exterior zone applications in motor vehicles.
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Citations
14 Claims
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1. An optical module, comprising:
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a rigid circuit carrier formed with a component-equipped surface and an opposite surface; a non-packaged semiconductor element flip-chip-mounted on said component-equipped surface; a lens unit disposed on said opposite surface of said circuit carrier, said lens unit including a lens holder and a lens assembly with at least one lens; said circuit carrier having an opening formed therein for projecting therethrough electromagnetic radiation from said lens unit onto said semiconductor element; at least one permanently flexible or springy element disposed between said lens holder and said circuit carrier for biassing said component-equipped surface of said circuit carrier away from said lens holder and against at least one stop element forming a form-lock relationship with said lens unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification