The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 25, 2025
Filed:
Jul. 16, 2020
Hamamatsu Photonics K.k., Hamamatsu, JP;
HAMAMATSU PHOTONICS K.K., Hamamatsu, JP;
Abstract
A solid immersion lens unit includes a solid immersion lens and a holder for swingably holding the solid immersion lens. The solid immersion lens includes a first lens portion formed of a first material, and a second lens portion formed of a second material having a refractive index smaller than a refractive index of the first material and coupled to the first lens portion. The first lens portion includes a contact surface for contacting with an observation object and a convex first spherical surface. The second lens portion includes a concave second spherical surface facing the first spherical surface and a convex third spherical surface to be disposed to face an objective lens. The holder has a contact portion configured to be contactable with the third spherical surface.