Title:
OPTICAL SYSTEM FOR CONVERTIBLE IMAGING OF POSTERIOR AND ANTERIOR PORTIONS OF THE EYE
Document Type and Number:
WIPO Patent Application WO/2020/251033
Kind Code:
A1
Abstract:
An reconfigurable optical arrangement for imaging posterior and anterior surfaces of a visual system. The optical arrangement includes a relay containing first and second lenses each having a positive optical power and detachably cooperated with one another such that (when the first plane corresponds to a first pupil of a subject's eye and the second plane corresponds to a second pupil of an external optical system) the first lens and the second lens form an afocal system configured to form a conjugate relationship between the first plane and the second plane. In a related embodiment, the optical arrangement may include a first lens system of an first optical system housed in a body of a mobile telecommunication device (where the first lens system has a first optical axis) and an afocal relay including first and second lenses that possess equal optical properties. Here, the afocal relay is configured to have a unity magnification and to provide diffraction-limited imaging within a spectral range from at least 486 nm to at least 656 nm. The method for imaging with the use of the optical arrangement.
Inventors:
WILLIAMSON DAVID M (US)
Application Number:
PCT/JP2020/023275
Publication Date:
December 17, 2020
Filing Date:
June 12, 2020
Export Citation:
Assignee:
NIKON CORP (JP)
International Classes:
G02B13/00; A61B3/13; G02B21/02; G02B21/36
Domestic Patent References:
| WO2018043657A1 | 2018-03-08 |
Foreign References:
| JP3197418U | 2015-05-14 | |||
| US20150045012A1 | 2015-02-12 | |||
| US20190090740A1 | 2019-03-28 | |||
| US20190038132A1 | 2019-02-07 | |||
| US20150071779A1 | 2015-03-12 |
Attorney, Agent or Firm:
TAIYO, NAKAJIMA & KATO (JP)
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