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 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 a light treatment system (10, 12). The light treatment system comprises a light source (20, 22) for emitting light (100) for illuminating a part of a human or animal body (30) for light treatment. The light treatment system further comprises a housing (40, 42) for emitting light towards the part of the human or animal body, and for at least partially covering the illuminated part of the human or animal body from view. The housing further comprises a window (50, 52, 54, 56) for emitting light from an inner part of the housing away from the housing. An effect of the light treatment system according to the invention is that the window in the housing may be used as indicator whether the light treatment system is operating and/or functioning well. Furthermore, the presence of a luminescent material, for example, on the window, may be used as indicator for, for example, ultraviolet light as part of the ultraviolet light may be converted by the luminescent material into visible light.

Abstract: The invention relates to a light treatment system (10, 12). The light treatment system comprises a light source (20, 22) for emitting light (100) for illuminating a part of a human or animal body (30) for light treatment. The light treatment system further comprises a housing (40, 42) for emitting light towards the part of the human or animal body, and for at least partially covering the illuminated part of the human or animal body from view. The housing further comprises a window (50, 52, 54, 56) for emitting light from an inner part of the housing away from the housing. An effect of the light treatment system according to the invention is that the window in the housing may be used as indicator whether the light treatment system is operating and/or functioning well. Furthermore, the presence of a luminescent material, for example, on the window, may be used as indicator for, for example, ultraviolet light as part of the ultraviolet light may be converted by the luminescent material into visible light.