Adjusting apparatus for projection
US6773115B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 10, 2003 |
| Grant date | Aug 10, 2004 |
| Priority date | — |
| Expiry date | Dec 10, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B21/28
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An adjusting apparatus for projection comprises a carrier having a central screw hole and three rounded indentations around central screw hole, an adjusting frame having a plane section and a base section, and a holder. The center of the plane section has a circular concave dug a hole with a smaller aperture. A ball bearing is accommodated in the circular concave. The plane section of the adjusting frame has three screw holes corresponding to the rounded indentations. Three angle-adjusting bolts respectively insert through the screw holes to abut against the rounded indentations. Rotating the angle-adjusting bolts relative to each other varies the length of the angle-adjusting bolts calculated from the plane section of the adjusting frame to the carrier. Thereby, an angle adjustment of a mirror is achieved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.