Title:
顕微鏡対物レンズ
Document Type and Number:
Japanese Patent JP5830363
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a technology pertaining to a liquid immersion objective lens that allows observation for a long time and can prevent deterioration in the optical performance caused by evaporation of immersion liquid.SOLUTION: A liquid immersion objective lens 10 has a front end flat surface 4 located closest to a specimen 1 and perpendicular to the optical axis AX and a side surface 5 parallel to the optical axis AX. The liquid immersion objective lens 10 has a recess 7 provided in a front end portion 6, which is a portion extending between the front end flat surface 4 and the side surface 5. The immersion liquid 3 extends from the front end flat surface 4 to an oblique surface 8 provided at a position farther from the optical axis AX than the recess 7. In other words, the interior of the recess 7 is filled with the immersion liquid 3.
Inventors:
Kiriya Kirie
Application Number:
JP2011253319A
Publication Date:
December 09, 2015
Filing Date:
November 18, 2011
Export Citation:
Assignee:
Olympus Endo Technology America Inc.
International Classes:
G02B21/02; G02B21/00
Domestic Patent References:
| JP5060981A | ||||
| JP2005195792A |
Attorney, Agent or Firm:
Yoshiyuki Osuga