Abstract: The present invention relates to an optical unit comprising three lens groups, i.e., a first lens group, a second lens group and a third lens group, and an optical unit comprising four lens groups, i.e., a first lens group, a second lens group a third lens group and a fourth lens group, which are arranged in order from an object side toward an image side surface side, wherein one or more of said lens groups comprise a substrate having a curved optical surface, wherein said curved optical surface is provided with a polymer layer.

Abstract: The present invention relates to an optical unit consisting of four lens groups, i.e., a first lens group, a second lens group, a third lens group and a fourth lens group, which are arranged in order from an object side toward an image side surface side, wherein at least the first, second and third lens group comprise at least two lens elements, wherein said at least two lens elements within each lens group have different optical properties, wherein no glass substrate is present in at least one of the first lens group, the second lens group and the third lens group.

Abstract: The present invention relates to an optical unit consisting of four lens groups, i.e. a first lens group, a second lens group, a third lens group and a fourth lens group, which are arranged in order from an object side toward an image side surface side, wherein at least the first, second and third lens group comprise at least two lens elements, wherein said at least two lens elements within each lens group have different optical properties, wherein no glass substrate is present in at least one of the first lens group, the second lens group and the third lens group.

Abstract: The present invention relates to an optical unit comprising three lens groups, i.e., a first lens group, a second lens group and a third lens group, and an optical unit comprising four lens groups, i.e., a first lens group, a second lens group a third lens group and a fourth lens group, which are arranged in order from an object side toward an image side surface side, wherein one or more of said lens groups comprise a substrate having a curved optical surface, wherein said curved optical surface is provided with a polymer layer.

Abstract: The present invention relates to an optical module, especially an optical projector module, comprising: at least a light source, an optical lens construction and a diffractive optical element (DOE), wherein said optical lens construction comprises at least a first and a second lens group, said first and second lens group comprising each two lens surfaces, said lens surfaces having different optical properties, wherein said first lens group is positioned adjacent to said light source.

Abstract: The present invention relates to a method for manufacturing optical modules comprising the following steps: i) providing a wafer having one or more substrate layers; ii) dicing said wafer into multiple parallel oriented strips; iii) tilting said multiple parallel oriented strips; iv) grinding at least one surface of said tilted, multiple parallel oriented strips; v) bonding said grinded surface of said tilted, multiple parallel oriented strips to at least one substrate; vi) dicing said at least one substrate into optical modules.

Abstract: The present invention relates to method of fabricating a wafer level optical lens assembly. The method includes providing a wafer substrate having a plurality of lens shapes arranged side by side, and providing a spacer substrate having a plurality of spacer posts. The method further includes applying a first polymer liquid on a specific location chosen from the group of: (1) positions located on the wafer substrate between the plurality of lens shapes; (2) positions located on the contact surface of the spacer posts; and (3) a combination thereof. The method further includes contacting the wafer substrate with the spacer substrate such that the spacer posts force the first polymer liquid to flow towards the lens shapes, followed by curing the first polymer liquid, and applying a second polymer liquid onto the lens shapes.

Abstract: The present invention relates to an optical unit consisting of four lens groups, i.e., a first lens group, a second lens group, a third lens group and a fourth lens group, which are arranged in order from an object side toward an image side surface side, wherein at least the first, second and third lens group comprise at least two lens elements, wherein said at least two lens elements within each lens group have different optical properties, wherein no glass substrate is present in at least one of the first lens group, the second lens group and the third lens group.

Abstract: The present invention relates to an optical light guide element having a first end section with a light entrance area designed for facing a light source and having a second end section with a light exit area designed for facing a light target area, wherein the light exit area is defined by a second surface area on the optical light guide element which faces a light target area, and wherein the light entrance area is defined by a first surface area on the optical light guide element which faces the light source, wherein the first end section comprises a first inclined surface area which forms an acute angle with the first surface area of the light entrance area, wherein the second end section forms a second inclined surface area which encloses an acute angle with the surface area of the light exit area, characterized in that said first surface area on the optical light guide element which faces the light source comprises a first replicated polymer lens.

Abstract: The present invention relates to a replication tool for replicating an element from a replication material, the replication tool comprising a replication side, a plurality of cavities on the replication side, each defining the shape of one element or a group of elements, the replication tool further comprising at least one bump portion, protruding, on the replication side, from the cavities, and further comprising means for confining the replication material to a predetermined area of the tool, when the tool is pressed against a substrate, which predetermined area exceeds the desired volume of the element in at least one direction along the surface of the substrate.

Abstract: The present invention relates to an optical light guide element having a first end section with a light entrance area designed for facing a light source and having a second end section with a light exit area designed for facing a light target area, wherein the light exit area is defined by a second surface area on the optical light guide element which faces a light target area, and wherein the light entrance area is defined by a first surface area on the optical light guide element which faces the light source, wherein the first end section comprises a first inclined surface area which forms an acute angle with the first surface area of the light entrance area, wherein the second end section forms a second inclined surface area which encloses an acute angle with the surface area of the light exit area, characterized in that said first surface area on the optical light guide element which faces the light source comprises a first replicated polymer lens.

Abstract: The present method relates to a method for printing a three-dimensional lens structure, comprising a step of depositing multiple fragments of printing material on a substrate and a step of curing the deposited fragments to build up said three-dimensional lens structure, wherein said substrate comprises a mould having a well defined surface area.

Abstract: The present invention relates to a method for manufacturing optical modules comprising the following steps: i) providing a wafer having one or more substrate layers; ii) dicing said wafer into multiple parallel oriented strips; iii) tilting said multiple parallel oriented strips; iv) grinding at least one surface of said tilted, multiple parallel oriented strips; v) bonding said grinded surface of said tilted, multiple parallel oriented strips to at least one substrate; vi) dicing said at least one substrate into optical modules.

Abstract: The present invention relates to a method of fabricating an array of optical lens elements, comprising: providing a first mold having a plurality of recesses; applying a first polymer liquid in said plurality of recesses; providing a first contact shaping substrate; contacting said first contact shaping substrate with said first polymer liquid in said plurality of recesses, wherein said contact between said first contact shaping substrate and said first polymer liquid results in a deformation of the contour configuration of said first polymer liquid facing away from said plurality of recesses; curing said first polymer liquid to form an array of optical lens elements.

Abstract: The present invention relates to a method of fabricating an array of optical lens elements, comprising: providing a first mold having a plurality of recesses; applying a first polymer liquid in said plurality of recesses; providing a first contact shaping substrate; contacting said first contact shaping substrate with said first polymer liquid in said plurality of recesses, wherein said contact between said first contact shaping substrate and said first polymer liquid results in a deformation of the contour configuration of said first polymer liquid facing away from said plurality of recesses; curing said first polymer liquid to form an array of optical lens elements.

Abstract: The present invention relates to method of fabricating a wafer level optical lens assembly, comprising: providing a wafer substrate having a plurality of lens shapes arranged side by side; providing a spacer substrate having a plurality of spacer posts; applying a first polymer liquid on a specific location chosen from the group of positions located on said wafer substrate between said plurality of lens shapes and positions located on the contact surface of said spacer posts, or a combination thereof; contacting said wafer substrate with said spacer substrate such that said spacer posts force said first polymer liquid to flow towards said plurality of lens shapes arranged side by side; curing said first polymer liquid; applying a second polymer liquid onto said plurality of lens shapes of said wafer substrate; curing said second polymer liquid to form a lens.

Abstract: The invention relates to an optical unit comprising. The present invention further relates to the use of such an optical unit. Such an optical unit comprises, seen in a direction from the object side to the imaging surface, a first substrate, a first lens element, a second lens element and a second substrate, characterized in that the first substrate includes a diaphragm function.

Abstract: The present invention relates to optical unit comprising, seen in the direction from the object side to the imaging surface, a first substrate, a first lens, a second lens and a second substrate, characterized in that the distance [(vertex first lens) and (vertex second lens)] is 250-650 pm. Such an optical unit is used, inter alia, in image processing units, such as cameras. It is an object of the present invention to provide an optical unit in which the desired dimensional precision of the lens system can be accomplished without this leading to an undesirable increase of the optical unit's dimensions.

Abstract: The present invention relates to method of fabricating a wafer level optical lens substrate. The method comprising providing a first wafer substrate having a plurality of bumps, applying a first polymer liquid on a first contact optical surface of said plurality of bumps, providing a second wafer substrate, and contacting said first wafer substrate with said second substrate in such that said first polymer liquid is located in a slit created between said first contact optical surface of said plurality of bumps and said second wafer substrate under capillary forces. The method comprises thereafter curing said polymer liquid(s) to form a lens.

Abstract: The present invention relates to method of fabricating a wafer level optical lens substrate. The method comprising providing a first wafer substrate having a plurality of bumps, applying a first polymer liquid on a first contact optical surface of said plurality of bumps, providing a second wafer substrate, and contacting said first wafer substrate with said second substrate in such that said first polymer liquid is located in a slit created between said first contact optical surface of said plurality of bumps and said second wafer substrate under capillary forces. The method comprises thereafter curing said polymer liquid(s) to form a lens.