Invention Grant
- Patent Title: Apparatus and methods for adjusting the rotational frequency of a scanning device
- Patent Title (中): 用于调节扫描装置的旋转频率的装置和方法
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Application No.: US10680928Application Date: 2003-10-08
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Publication No.: US07659918B2Publication Date: 2010-02-09
- Inventor: Arthur Monroe Turner
- Applicant: Arthur Monroe Turner
- Applicant Address: US TX Dallas
- Assignee: Texas Instruments Incorporated
- Current Assignee: Texas Instruments Incorporated
- Current Assignee Address: US TX Dallas
- Agent William B. Kempler; Wade J. Brady, III; Frederick J. Telecky, Jr.
- Main IPC: B41J2/435
- IPC: B41J2/435 ; B41J15/14 ; B41J2/47 ; H04N1/04
Abstract:
The present invention provides methods and apparatus for adjusting the resonant frequency, scan velocity or other parameters of a pivotally functional surface such as an oscillating mirror used as the scanning engine of a laser printer or projection display. The selected parameter is adjusted by the application of tensional or compression stress to the torsional hinges of the mirror. According to one embodiment, the appropriate stress is generated by a slice of piezoelectric material bonded to the mirror device itself or to other portions of the support structure of the scanning engine.
Public/Granted literature
- US20050078169A1 Apparatus and methods for adjusting the rotational frequency of a scanning device Public/Granted day:2005-04-14
Information query
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