Invention Grant
- Patent Title: Magnification loupe with aspherical lenses
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Application No.: US12531301Application Date: 2008-02-26
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Publication No.: US09910191B2Publication Date: 2018-03-06
- Inventor: Steffen Janik
- Applicant: Steffen Janik
- Applicant Address: CH St. Gallen
- Assignee: FORSTGARTEN INTERNATIONAL HOLDING GMBH
- Current Assignee: FORSTGARTEN INTERNATIONAL HOLDING GMBH
- Current Assignee Address: CH St. Gallen
- Agency: Davé Law Group LLC
- Agent Raj S. Dave
- International Application: PCT/EP2008/001521 WO 20080226
- International Announcement: WO2008/110264 WO 20080918
- Main IPC: G02B23/00
- IPC: G02B23/00 ; G02B3/04 ; G02B25/00 ; A61B90/00 ; G02B7/00
Abstract:
The present invention relates to optical instruments, in particular to magnification loupes, stereo-magnification loupes and magnification viewers, such as those worn by dentists and surgeons. The objective lens of the optical instrument is protected from mechanical and/or chemical damage.
Public/Granted literature
- US20100214656A1 MAGNIFICATION LOUPE WITH ASPHERICAL LENSES Public/Granted day:2010-08-26
Information query
