OPTICAL DELAY LINE DEVICE - GUANGZHOU WINSTAR MEDICAL TECH COMPANY LIMITED

Title:

OPTICAL DELAY LINE DEVICE

Document Type and Number:

WIPO Patent Application WO/2020/062329

Kind Code:

A1

Abstract:

An optical delay line device, comprising a housing, a motor (23), a lead screw (22), an optical optic disc (11), a reflective prism (21), and a collimator, the reflective prism (21) being mounted on the lead screw (22), and the motor (23) driving the lead screw (22), and further comprising a constant-temperature control panel, a temperature detector, and a heating refrigeration sheet, one end of the constant-temperature control panel being connected to the temperature detector, and the other end being connected to the heating refrigeration sheet. The temperature detector detects the temperature in the housing and transmits the temperature information to the constant-temperature control panel; the constant-temperature control panel controls heating or refrigeration of the heating refrigeration sheet; the constant-temperature control panel dynamically adjusts the movement offset of the lead screw according to the current temperature. An optical fiber and the lead screw are subjected to constant-temperature control, thereby reducing the influence of temperature change on the refractive index of the optical fiber, the movement offset is adjusted according to the actual measured temperature, and compensation of the optical delay amount is carried out, thereby effectively reducing the influence of the external ambient temperature on an optical delay line, and improving the measurement size precision of an OCT image.

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Inventors:

SONG LIYAN (CN)
LI BAILING (CN)
GAO JUN (CN)
LIANG WEILIANG (CN)

Application Number:

PCT/CN2018/109810

Publication Date:

April 02, 2020

Filing Date:

October 11, 2018

Export Citation:

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Assignee:

GUANGZHOU WINSTAR MEDICAL TECH COMPANY LIMITED (CN)

International Classes:

G02B26/00; G01K11/32

Foreign References:

CN203324573U	2013-12-04
US6215941B1	2001-04-10
JPH07198538A	1995-08-01
CN204515189U	2015-07-29
CN103293604A	2013-09-11

Attorney, Agent or Firm:

GUANGZHOU YUEXIU JILY PATENT & TRADEMARK LAW OFFICE (CN)

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