公开(公告)号：WO2016195791A1

公开(公告)日：2016-12-08

申请号：PCT/US2016/024885

申请日：2016-03-30

Applicant: APPLE INC.

Inventor： SAWYER, Kevin A. ,  ALNAHHAS, Yazan Z.

IPC: G03B21/14 ,  G03B21/16 ,  G02B13/00 ,  H04N9/31

CPC classification number: F21V29/90 ,  F21V25/04 ,  G02B13/0065 ,  G02B13/0085 ,  G02B27/425 ,  G03B3/10 ,  G03B21/142 ,  G03B2205/0084 ,  H04N5/2254 ,  H04N9/3144 ,  H04N9/3161 ,  H04N9/3173

Abstract: An optical module (20) includes a transparent substrate (30) and a refractive optical element (42) mounted on the substrate. A conductive heating trace (60) is deposited on the substrate around the refractive optical element. A temperature sensor (62) senses a temperature of the substrate. Control circuitry (50, 51, 53) is coupled to the temperature sensor so as to measure a difference between the temperature of the substrate and a target operating temperature of the module, and to drive a current through the conductive heating trace, responsively to the difference, so as to heat the substrate to the target operating temperature.

Abstract translation: 光学模块（20）包括透明基板（30）和安装在基板上的折射光学元件（42）。 导电加热迹线（60）沉积在折射光学元件周围的基底上。 温度传感器（62）感测衬底的温度。 控制电路（50,51,53）耦合到温度传感器，以便测量衬底的温度与模块的目标工作温度之间的差异，并且响应于该温度传感器驱动电流通过导电加热迹线 差异，从而将基板加热到目标工作温度。

公开(公告)号：EP3259643A1

公开(公告)日：2017-12-27

申请号：EP16715432.7

申请日：2016-03-30

Applicant: Apple Inc.

Inventor： SAWYER, Kevin A. ,  ALNAHHAS, Yazan Z.

IPC: G03B21/14 ,  G03B21/16 ,  G02B13/00 ,  H04N9/31

CPC classification number: F21V29/90 ,  F21V25/04 ,  G02B13/0065 ,  G02B13/0085 ,  G02B27/425 ,  G03B3/10 ,  G03B21/142 ,  G03B2205/0084 ,  H04N5/2254 ,  H04N9/3144 ,  H04N9/3161 ,  H04N9/3173

Abstract: An optical module (20) includes a transparent substrate (30) and a refractive optical element (42) mounted on the substrate. A conductive heating trace (60) is deposited on the substrate around the refractive optical element. A temperature sensor (62) senses a temperature of the substrate. Control circuitry (50, 51, 53) is coupled to the temperature sensor so as to measure a difference between the temperature of the substrate and a target operating temperature of the module, and to drive a current through the conductive heating trace, responsively to the difference, so as to heat the substrate to the target operating temperature.