Non-contact optical axis and pupil center detection apparatus
US12339116B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 16, 2025 |
| Grant date | Jun 24, 2025 |
| Priority date | — |
| Expiry date | Jan 16, 2045 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01B11/272
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An apparatus for indicating a misalignment of an optical axis of a lens system including a lens, a front end and a rear end, the lens having a front surface and a rear surface, the apparatus including a light source, a first mirror, a first beam splitter, and an image plane, wherein a laser beam of the light source is configured to be directed at the first beam splitter to result in a first and a second beam, the first beam is redirected at the first mirror before being redirected by the first mirror through the first beam splitter to cast a first spot at the image plane, and the second beam is disposed through the first beam splitter to be directed at the front surface of the lens system before being redirected by the first beam splitter to cast a second spot at the image plane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.