Optical image capturing module

A manufacturing method of an optical image capturing module, comprising:

• disposing a circuit assembly comprising at least one base, at least one circuit substrate, at least two image sensor elements, and a plurality of electric conductors, and disposing a plurality of circuit contacts on the circuit substrate, and the circuit substrate comprising at least one transparent area and disposed on the base;
• disposing at least one accommodation space in the base for accommodating the at least two image sensor elements, wherein each of the at least two image sensor element comprises a first surface and a second surface, and the first surface of each of the at least two image sensor element is adjacent to the at least one accommodation space and the second surface has a sensing surface and a plurality of image contacts;
• disposing the plurality of electric conductors between the circuit substrate and the plurality of electric conductors of the image sensor elements;
• integrally forming a multi-lens frame on the circuit assembly, covering the multi-lens frame on the circuit substrate and each of the image sensor elements, and forming a plurality of light channels on a sensing surface of the second surface corresponding to each of the image sensor elements;
• disposing a lens assembly, which comprises at least two lens bases, at least two auto-focus lens assemblies, and at least two driving assemblies;
• making the at least two lens bases with an opaque material and forming an accommodating hole on each of the lens bases which passes through two ends of the lens base in such a way that the lens base becomes a hollow shape;
• disposing each of the lens bases on the multi-lens frame to connect the accommodating hole with the light channel;
• disposing at least two lenses with refractive power in each of the auto-focus lens assemblies and making each of the auto-focus lens assemblies satisfy the following conditions:
• 1.0≤f/HEP≤10.0;
• 0 deg<HAF≤150 deg;
• 0 mm<PhiD≤18 mm;
• 0<PhiA/PhiD≤0.99;
• and
• 0≤2(ARE/HEP)≤2.0;
• in the conditions above, f is a focal length of each of the auto-focus lens assemblies;
• HEP is an entrance pupil diameter of each of the auto-focus lens assemblies, HAF is a half maximum angle of view of each of the auto-focus lens assemblies, PhiD is a maximum value of a minimum side length of an outer periphery of the lens base perpendicular to the optical axis of each of the auto-focus lens assemblies, PhiA is a maximum effective diameter of each of the auto-focus lens assemblies nearest to a lens surface of the image plane, ARE is an arc length along an outline of the lens surface, starting from an intersection point of any lens surface of any lens and the optical axis in the auto-focus lens assembly, and ending at a point with a vertical height which is a distance from the optical axis to half the entrance pupil diameter;
• disposing each of the auto-focus lens assemblies on each of the lens bases and positioning each of the auto-focus lens assemblies in the accommodating hole;
• adjusting the image planes of each of the auto-focus lens assemblies of the lens assembly to make an optical axis of each of the auto-focus lens assemblies pass through the transparent area and overlap with a central normal line of the sensing surface of the image sensor elements;
• and
• electrically connecting each of the driving assemblies to the circuit substrate and each of the auto-focus lens assemblies, so as to drive each of the auto-focus lens assemblies to move in a direction of the central normal line of the sensing surface of the image sensor elements.

An optical image capturing module, comprising:

• a circuit assembly, comprising:
• at least one base having at least one accommodation space;
• at least one circuit substrate, disposed on the base and comprising at least one transparent area, and a plurality of circuit contacts disposed thereon;
• at least two image sensor elements, accommodated in the accommodation space, and each of the image sensor elements comprising a first surface and a second surface, the first surface of each of the image sensor elements adjacent to a bottom surface of the accommodation space and the second surface of each of the image sensor elements having a sensing surface and a plurality of image contacts;
• and
• a plurality of electric conductors, disposed between the plurality of circuit contacts and the plurality of image contacts of each of the image sensor elements;
• and
• a lens assembly, comprising:
• at least two lens bases, each of the at least two lens bases made of an opaque material and having an accommodating hole passing through two ends of the lens base in such a way that the lens base becomes a hollow shape, and the lens base disposed on the circuit substrate;
• and
• at least two auto-focus lens assemblies, each of the at least two auto-focus lens assemblies having at least two lenses with refractive power, disposed on each of the lens bases, and positioned in each of the accommodating holes, an image plane of each of the auto-focus lens assemblies disposed on the sensing surface of the image sensor elements, and an optical axis of each of the auto-focus lens assemblies passing through the transparent area and overlapping the central normal line of the sensing surface of the image sensor elements in such a way that light is able to pass through the auto-focus lens assembly in each of the accommodating holes, and be emitted to the sensing surface of the image sensor elements;
• at least two driving assemblies, electrically connected to each of the circuit substrates and driving the at least two auto-focus lens assemblies to move in a direction of the central normal line of the sensing surface of the image sensor elements;
• and
• a multi-lens outer frame, wherein each of the lens bases is respectively fixed to the multi-lens outer frame in order to form a whole body;
• wherein each of the auto-focus lens assemblies further satisfies the following conditions:
• 1.0≤f/HEP≤10.0;
• 0 deg<HAF≤150 deg;
• 0 mm<PhiD≤18 mm;
• 0<PhiA/PhiD≤0.99;
• and
• 0.9≤2(ARE/HEP)≤2.0;
• wherein f is a focal length of each of the auto-focus lens assemblies, HEP is an entrance pupil diameter of each of the auto-focus lens assemblies, HAF is a half maximum angle of view of each of the auto-focus lens assemblies, PhiD is a maximum value of a minimum side length of an outer periphery of the lens base perpendicular to the optical axis of each of the auto-focus lens assemblies, PhiA is a maximum effective diameter of each of the auto-focus lens assemblies nearest to a lens surface of the image plane, ARE is an arc length along an outline of the lens surface, starting from an intersection point of any lens surface of any lens and the optical axis in the auto-focus lens assembly, and ending at a point with a vertical height which is a distance from the optical axis to half the entrance pupil diameter.