Compact optoelectronic modules are described that, in some implementations, can have reduced heights, while at the same time having very little optical crosstalk or detection of stray light. An optoelectronic module having optical channel can include a support on which is mounted an optoelectronic device arranged to emit or detect light at a particular one or more wavelengths. The module has a cover including an optically transmissive portion over the optoelectronic device. The optically transmissive portion is surrounded laterally by sections of the cover that are substantially non-transparent to the one or more wavelengths. A passive optical element is present on a surface of the optically transmissive portion. A spacer separates the support from the cover. The cover can be relatively thin so that the overall height of the module is relatively small.

The present technology relates to, for example, a lens attached substrate including a substrate which has a through-hole formed therein and a light shielding film formed on a side wall of the through-hole and a lens resin portion which is formed inside the through-hole of the substrate. The present technology can be applied to, for example, a lens attached substrate, a layered lens structure, a camera module, a manufacturing apparatus, a manufacturing method, an electronic device, a computer, a program, a storage medium, a system, and the like.

A method of manufacturing a plurality of optical elements comprising the steps of providing a substrate (120) providing a tool (100) comprising, a plurality of replication sections (106) each defining a surface structure of one of the optical elements, and at least one contact spacer portion (112), aligning the tool (100) and the substrate (120) with respect to each other and bringing the tool (100) and a first side of the substrate (120) together, with replication material (124) between the tool (100) and the substrate (120), the contact spacer portion (112) contacting the first side of the substrate (120), hardening the replication material (124), and separating the tool (100) from the substrate (120) with the hardened replication material adhering to the substrate (120), wherein the tool (100) has yard line features (304) around at least a portion of the replication sections (106), the yard line features (304) configured to contain the replication material (124) on a first side of the yard line with respect to both the tool (100) and the substrate (120).

Techniques for controlling the flow of replication material (e.g., epoxy) during the formation of replicated optical elements include providing a transparent substrate (220) onto which the optical elements are to be replicated. The substrate (220) includes a structured UV curable shield (202) adhering to its surface. The UV curable shield (202), in turn, has openings (203) that expose portions of the surface of the transparent substrate (220) for replication of the optical elements. During the replication process, excess replication material (124A) may flow onto the UV curable shield (202), which subsequently can be cured so as to facilitate the release and removal of the shield (202) along with the excess replication material (124A).

A method includes: providing a substrate, in which a first surface of the substrate includes at least one optical element module region defining an area in which multiple optical elements are to be disposed; forming, for each optical element module region on the first surface of the substrate, a corresponding reflow waste channel in the first surface of the substrate and around a perimeter of the optical element module region; providing a first optical element mold, in which a surface of the first optical element mold includes multiple first cavities, each first cavity defining a shape of a corresponding optical element of the multiple optical elements; providing resin globules between the surface of the optical element mold and the first surface of the substrate; and compressing the first optical element mold to the first surface of the substrate so that the resin fills the multiple first cavities, and so that excess resin flows into the reflow waste channel.

A manufacturing method of an image pickup apparatus for endoscope includes: fabricating a first optical wafer and a second optical wafer including spacers; disposing walls made of a first resin, being greater in height than the spacers, and enclosing optical paths without any gap; clamping the first optical wafer and the second optical wafer with the walls being interposed between the first optical wafer and the second optical wafer; charging a second resin around the walls; performing curing treatment on the second resin to cause the second resin to shrink, and fix the first optical wafer and the second optical wafer in a state where an interval between the first optical wafer and the second optical wafer is defined by the spacers; and cutting a bonded wafer.

The present technology relates to, for example, a lens attached substrate including a substrate which has a through-hole formed therein and a light shielding film formed on a side wall of the through-hole and a lens resin portion which is formed inside the through-hole of the substrate. The present technology can be applied to, for example, a lens attached substrate, a layered lens structure, a camera module, a manufacturing apparatus, a manufacturing method, an electronic device, a computer, a program, a storage medium, a system, and the like.

A method of manufacturing a plurality of optical elements (140) comprising the steps of providing a substrate (120), and a tool (101) comprising a plurality of replication sections (106), each defining a surface structure of one of the optical elements (140), the tool (101) further comprising at least one contact spacer portion (112), aligning the tool (101) and the substrate (120) with respect to each other and bringing the tool (101) and a first side of the substrate (122) together, with replication material (124) between the tool (101) and the substrate (120), the contact spacer portion (112) contacting the first side of the substrate (122), and thereby causing the spacer portion (112) to adhere to the first side of the substrate (122), hardening the replication material (124), wherein the substrate (120) has yard line features (138) around at least a portion of the replication sections (106), the yard line features (138) containing the replication material (124) on a first side of the yard line with respect to the tool (101) and the substrate (120).

A method of manufacturing a plurality of optical elements includes providing a first wafer (200) having lower alignment features (192) arranged on a first surface of the substrate, providing a second wafer (201) comprising, on a replication side, a plurality of replication sections, each replication section defining a surface structure of one of the optical elements, the second wafer (201) further comprising upper alignment features (194) protruding, on the replication side, further than an outermost feature of the replication sections, depositing liquid droplets (196) on the first side of the first wafer (200), and bringing the second wafer (201) and the first side of the first wafer (200) together, with liquid droplets (196) between the first wafer (200) and the second wafer (201), the upper alignment features (194) contacting the liquid droplets (196) on the lower alignment features (192) on the first side of the first wafer (200), and thereby causing the second wafer (201) to align with the first wafer (200) by capillary action.

A lens pigment suitable for manufacturing value documents by printing technology, includes a carrier substrate which forms a lens base and which is supplied on its front side with a first plastic having at least one elevation that produces a microlens and with a second plastic leveling the first plastic.