摘要:
Optical stack assemblies and fabrication techniques thereof. The optical stack assembly includes first and second sub-assemblies, each of which include a substrate and a sub-structure fixed to the respective substrate. Each sub-structures includes a respective first edge feature and a respective second edge feature that project away from the substrate of that sub-structure, each second edge feature being disposed laterally closer to an outer periphery of the respective sub-structure than the first edge feature of the same sub-structure. The first edge feature of the first sub-structure is in direct contact with the first edge feature of the second sub¬ structure, while the second edge feature of the first sub-structure and the second edge feature of the second sub-structure are attached to one another by adhesive. At least one of the first or second sub-structures includes an optical element on a same side of the sub-structure as the first and second edge features of that sub-structure. The optical element stack assembly further includes a spacer laterally surrounding, and moulded to, the first and second sub-assemblies.
摘要:
Embodiments are disclosed herein related to the construction of optical elements for depth sensor systems. One disclosed embodiment provides a wide-angle lens construction comprising a first, negative stage, and a second, positive stage positioned behind the first, negative stage along an optical axis of the lens construction. The second, positive stage further comprises a first positive lens substage, a second positive lens substage, a third positive lens substage, the second positive lens substage positioned between the first positive lens substage and the third positive lens substage.
摘要:
An optical module (10) comprises a positive meniscus lens (16) having a focal length F1 and comprising a first convex optical surface (12) and a second concave optical surface (20), and a plano-convex lens (22) having a focal length F1 and comprising a third flat optical surface (24) and a fourth convex optical surface (26) from an object side (12) to an image side (14). The curvatures of the four optical surfaces (12, 20, 24, 26) are defined by the equation: Zi=CURViYi2/(l+(l+Ki)CURVi2Yi2)1/2)+(Ai)Yi2+(Bi)Yi4+(Ci)Yi6+(Di)Yi8, and the two lenses are defined by 0.35
摘要:
A lens unit, an optical system, a recording/playback apparatus and a method for recording to and/or reproducing from a recording medium to compensate for a spherical aberration and perform stable recording or reproduction of data in recording or reproducing data to or from a recording medium having a plurality of recording layers are disclosed. The lens unit includes a first lens for condensing light beams outputted from a light source to a recording medium, a second lens for increasing a numerical aperture of the first lens to form a near field, and a liquid crystal device for compensating for a spherical aberration included in the first lens and the second lens, thereby compensating for the spherical aberration.