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US 9,360,599 B2Granted
Optical element and method of manufacturing same
AssigneeHamamatsu Photonics K.K.
InventorsTakafumi Yokino, Katsumi Shibayama
Life of this patent
Estimating the term…
Abstract
An optical element 1 comprises a base 2 having a surface 2a formed with a depression 3 and a formed layer 4 disposed on the base 2. The formed layer 4 has a main part 5 located within the depression 3 when seen in the depth direction of the depression 3 and an overhang 6 located on the surface 2a of the base 2 while being connected to the main part 5. A curved surface 4b opposing a bottom face 3b of the depression 3 in the main part 5 is provided with an optical function part 10.
Claims6
An optical element comprising:
- a base having a surface formed with a depression and a formed layer disposed on the base,
- wherein the formed layer has a first part located within the depression when seen in a thickness direction of the depression and an overhanging second part located outside of the depression on the surface of the base while being connected to the first part;
- and
- wherein a predetermined surface in the first part opposing an inner face of the depression is provided with an optical function part,
- wherein a predetermined surface in at least one of the first and second parts is provided with a reflective layer.
2 more elements
A method of manufacturing an optical element comprising the steps of:
- preparing a base having a surface formed with a depression;
- and
- disposing a forming material on the base;
- and
- pressing a forming mold against the forming material and curing the forming material so as to form a formed layer having a first part located within the depression when seen in a thickness direction of the depression and an overhanging second part located outside of the depression on the surface of the base while being connected to the first part,
- wherein the forming mold is formed so as to come into intermittent contact with an opening of the depression when the forming mold is pressed against the forming material,
- wherein the forming mold has a forming surface for forming the first part with a predetermined surface to be provided with an optical function part such that the predetermined surface opposes an inner face of the depression;
- and
- coating a predetermined surface of at least one of the first and second parts with a reflective layer.
6 more elements
Dependencies are inferred from the claim text.