Patents
US 12646243 B1: Sequential ray tracing using surface sets
- Granted
- 2026-06-02
- Filed
- 2023-10-18 application 18489726
- Type
- Utility · 20 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
An optical system has a plurality of surfaces. In addition, a specification of a sequential ray trace through the optical system specifies an order of surface elements for tracing rays through the optical system. The sequential ray trace may be for stray light rays rather than for the primary rays propagating through the optical system. The surface elements include a surface set. The surface set includes at least two of the surfaces in the optical system. Rays are traced through the optical system according to the sequential ray trace. For example, the specification of the sequential ray trace may also specify a maximum number N of surface-intersections for the surface set. Rays are traced through the optical system with up to N surface-intersections with the surfaces in the surface set, and without regard to the order in which rays intersect the surfaces in the surface set.
Source: PTBLXML, file of 2026-06-02 (ipgb20260602.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| KEYSIGHT TECHNOLOGIES, INC. 599 patents | US company or organization | Santa Rosa, CA | KEYSIGHT TECHNOLOGIES, INC Federal lobbying client EXACT high confidence: identical full name and state KEYSIGHT TECHNOLOGIES, INC. SEC filer EXACT medium confidence: identical full name, one of each nationally | PTBLXML, file of 2026-06-02 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Yong Fang | San Diego, CA | PTBLXML, file of 2026-06-02 | ||
| William J. Cassarly | Wooster, OH | PTBLXML, file of 2026-06-02 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| G06T | Image data processing or generation, in general | G06T15/06 | PTBLXML, file of 2026-06-02 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
| Recorded | What | From | To | Reel/frame | Source |
|---|---|---|---|---|---|
| 2026-01-13 | Assignment Assignment of assignor's interest | SYNOPSIS, INC. signed 2025-10-17 | KEYSIGHT TECHNOLOGIES, INC. SANTA ROSA, CA | 73445/912 | PASDL, file of 2026-10-15 |
| 2023-10-19 | Assignment Assignment of assignor's interest | FANG, YONG signed 2023-10-16 CASSARLY, WILLIAM J. signed 2023-10-16 | SYNOPSYS, INC. SUNNYVALE, CA | 65284/494 | PASDL, file of 2026-10-15 |
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.