Image sensor assembly

An image sensor assembly for mounting in an optical system having a plurality of reference locators, said image sensor assembly comprising:

• an image sensing device;
• and
• a carrier package adapted for exact constraint to a set of features on the carrier package that are externally accessible to the reference locators, wherein said set of features comprises three openings extending into the carrier package to provide an inset surface that provides three targets to set the plane of the carrier package against the reference locators, and wherein two of the openings are squared in order to provide two straight edges that are urged against at least one of the reference locators to set the remaining degrees of freedom.

An image sensor assembly for mounting in an optical system having a plurality of reference locators that include a plurality of locator pins extending from respective flat surfaces, said image sensor assembly comprising:

• an image sensing device;
• and
• a supporting substrate adapted for exact constraint to a set of features on the substrate that are externally accessible to the reference locators, said substrate supporting the image sensing device in a location on the substrate that is referenced to the set of features, wherein said set of features includes three target surfaces that contact the flat surfaces of the locators to set the plane of the substrate, and at least two straight edges orthogonal to one another that contact the pins to set the remaining degrees of freedom of the substrate.