PORTABLE DEVICE FOR MEASURING TEMPERATURE USING INFRARED ARRAY SENSOR

• US 20130235901A1
• Filed: 11/16/2011
• Published: 09/12/2013
• Est. Priority Date: 11/17/2010
• Status: Active Grant

• Current Assignee: Easytem Co., Ltd.
• Original Assignee: Easytem Co., Ltd.
• Inventors: Shin, Jae-Woo
• Granted Patent: US 9,506,809 B2
• Time in Patent Office: Days
• US Class Current: 374/121
• CPC Class Codes: A61B 5/01 Measuring temperature of body parts ; Diagnostic temperature sensing, e.g. for malignant or inflamed tissue clinical contact thermometers G01K13/20
• CPC Class Codes: A61B 5/70 Means for positioning the patient in relation to the detecting, measuring or recording means
• CPC Class Codes: A61B 5/743 Displaying an image simultaneously with additional graphical information, e.g. symbols, charts, function plots
• CPC Class Codes: G01J 2005/0077 Imaging
• CPC Class Codes: G01J 2005/106 Arrays
• CPC Class Codes: G01J 5/0025 Living bodies ear thermometers G01J5/0011; detecting, measuring or recording for diagnostic purposes A61B5/00
• CPC Class Codes: G01J 5/025 Interfacing a pyrometer to an external device or network; User interface
• CPC Class Codes: G01J 5/0265 Handheld, portable ear thermometers G01J5/049
• CPC Class Codes: G01J 5/0275 Control or determination of height or distance or angle information for sensors or receivers
• CPC Class Codes: G01J 5/07 Arrangements for adjusting the solid angle of collected radiation, e.g. adjusting or orienting field of view, tracking position or encoding angular position optical collimating elements G01J5/0806
• CPC Class Codes: G01J 5/0859 Sighting arrangements, e.g. cameras
• CPC Class Codes: G01J 5/48 Thermography; Techniques using wholly visual means
• CPC Class Codes: G01J 5/60 using determination of colour temperature
• CPC Class Codes: G01K 1/20 Compensating for effects of temperature changes other than those to be measured, e.g. changes in ambient temperature

Abstract

Disclosed is a portable device for measuring temperature with infrared array sensor. This portable device includes: an infrared array sensor module for taking temperature values in a unit of pixel and including a plurality of infrared sensors arranged in an array of pixels; a controller for calculating a resultant temperature value of a subject with reference to the temperature values taken each by the sensors; a display for expressing the resultant temperature value calculated by the controller; and a view finder with an indicator defining a target point to be measured for temperature and having a profile corresponding to the whole or a local shape of the subject. The view finder is formed of a transparent plate on which the subject'"'"'s shape is reflected. The transparent plate is formed of: a notch representing the indicator; and a lens at least provided in the indicator.

Claims

1. A portable device for measuring temperature, comprising:

an infrared array sensor module configured to take temperature values in a unit of pixel, including a plurality of infrared sensors arranged in an array of pixels;

a controller configured to calculate a resultant temperature value of a subject with reference to the temperature values taken each by the sensors;

a display configured to express the resultant temperature value calculated by the controller; and

a view finder configured to have an indicator defining a target point to be measured for temperature and having a profile corresponding to the whole or a local shape of the subject,

wherein the view finder is formed of a transparent plate on which the subject'"'"'s shape is reflected,

wherein the transparent plate is formed of;

a notch representing the indicator; and

a lens at least provided in the indicator.

2. The portable device according to claim 1, wherein the display is a transparent LCD panel and the view finder is configured to overlap with the LCD panel in a predetermined interval.

3. The portable device according to claim 2, wherein the LCD panel is configured to include a marker that is same with the indicator of the view finder in shape.

4. The portable device according to claim 1, further comprising an LED under the view finder, wherein the notch is configured to make light reflected vertically on the plate from the LED.

5. The portable device according to claim 1, wherein the controller is configured to, if temperature values measured each by the infrared sensors are within a predetermined range, determine that pixels corresponding to the infrared sensors are valid pixels, and calculate a resultant temperature value of the subject with reference to the temperature values measured by the infrared sensors corresponding to the valid pixels.

6. The device according to claim 5, wherein the controller is configured to calculate an ambient temperature value from the temperature values measured by infrared sensors corresponding to other pixels except the valid pixels, and correct the resultant temperature value of the subject with reference to the ambient temperature value.