Patent · US Expired

Pick-up head for incremental transmitter, particularly angular incremental transmitter

US4700065A · kind A · utility

5Cited by

2References

3Claims

0Family size

Assignee

Bodenseewerk Gerätetechnik GmbH · DE

Inventors

Hans Kordulla · Singen, DE
Dirk Jansen · Überlingen, DE
Günter Schmid · Hemhofen, DE

Key dates

Filing date	Nov 25, 1985
Grant date	Oct 13, 1987
Priority date	—
Expiry date	Nov 25, 2005

Classification

Technology area (CPC G)Physics
CPC primaryG01D5/34715
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A pick-up head for angular incremental transmitter comprises a transmitter portion (14) with luminescence diodes connected to a hybrid circuit. The hybrid circuit is placed in a hybrid housing (24) sealed by a lid with collimator lenses. A detector portion (16) comprises photodiodes on a hybrid circuit, which includes amplifiers for the photodiodes. The hybrid circuit is placed in a hybrid housing (46) the lid forming a stationary grating (64). The hybrid housings are hermetically sealed and supported at a distance from each other. A rotatable disc (10) with a movable grating (18) extends between the hybrid housings.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.