Patents
US 10620424 B1: Lens for use with imaging sensors
- Granted
- 2020-04-14
- Filed
- 2017-09-15 application 15706116
- Type
- Utility · 16 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
An objective element for use in an endoscope is provided. The objective element comprises a flat glass plate that is in contact with the plano side of a plano-convex lens. The side of the flat glass plate in contact with the plano-convex lens is coated with an opaque material other than an aperture that is in line with the axis of the plano-convex lens. Alternatively, the plano side of a plano-convex lens may be coated with an opaque material other than an aperture that is in line with the axis of the plano-convex lens.
Source: PVGPATDIS, file of 2026-04-10 (ipg200414.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| Precision Optics Corporation, Inc. 3 patents | US company or organization | Gardner, MA | PRECISION OPTICS CORPORATION, INC. Form D issuer EXACT high confidence: identical full name and state PRECISION OPTICS CORPORATION, INC. SEC filer EXACT medium confidence: identical full name, one of each nationally | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Brian E. Volk | Jefferson, MA | 6 | PVGPATDIS, file of 2026-04-10 | |
| Joseph N. Forkey | Princeton, MA | 8 | Person page FUZZY medium confidence | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| G02B | Optical elements, systems or apparatus | G02B23/243 | PVGPATDIS, file of 2026-04-10 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
| Recorded | What | From | To | Reel/frame | Source |
|---|---|---|---|---|---|
| 2020-01-15 | Correction Corrective assignment to correct the correct assignee name previously recorded at reel: 044451 frame: 0588. assignor(s) hereby confirms the assignment. | FORKEY, JOSEPH N. signed 2020-01-07 VOLK, BRIAN E. signed 2020-01-10 | PRECISION OPTICS CORPORATION, INC. GARDNER, MA | 51608/836 | ECORSEXC, file of 2026-09-25 |
| 2017-12-20 | Assignment Assignment of assignor's interest | FORKEY, JOSEPH N. signed 2017-12-06 VOLK, BRIAN E. signed 2017-12-11 | PRECISION OPTICS CORPORATION GARDNER, MA | 44451/588 | ECORSEXC, file of 2026-09-25 |
Documents recorded with the USPTO Assignment Recordation Branch that list this patent. A security interest is a lender’s claim on the patent as collateral; a release ends it.
USPTO bulk data: PatentsView granted patents, disambiguated (PVGPATDIS) for patents, assignees, inventors, places and CPC categories; the USPTO Patent Assignment Dataset (ECORSEXC) for assignments and security interests. Patents filed in the last 20 years. No claims or full text. Links to other records are by name (and state): EXACT means the identical full name and state; FUZZY means a looser name match, with the confidence shown.