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Optical characteristic measuring device and setting method of optical characteristic measuring device

A technology for measuring devices and optical characteristics, which is applied in measuring devices, color measuring devices, optical instrument testing, etc., and can solve the problems of longer standby time of optical sensors and poor utilization efficiency of optical sensors, etc.

Active Publication Date: 2020-04-14
KONICA MINOLTA INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

When a large difference occurs between the measurement times of two optical sensors, the standby time of the optical sensor whose measurement time is short becomes long, and the utilization efficiency of the optical sensor becomes poor

Method used

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  • Optical characteristic measuring device and setting method of optical characteristic measuring device
  • Optical characteristic measuring device and setting method of optical characteristic measuring device
  • Optical characteristic measuring device and setting method of optical characteristic measuring device

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Embodiment Construction

[0026] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. figure 1 It is a block diagram showing the configuration of the optical characteristic measurement device 1 of the present embodiment. The optical characteristic measuring device 1 is a two-dimensional color measuring instrument for measuring the color of a light source, and includes a light receiving unit 2 and a main body unit 3 .

[0027] The measurement object of the optical characteristic measuring device 1 is the optical characteristic (for example, brightness, hue) of various illuminants. Brightness indicates the brightness and luminosity of the illuminant. Hue represents the chromaticity coordinates, dominant wavelength, stimulus purity, and correlated color temperature of the illuminant. As a measurement object, the screen of the flat panel display 4 will be described as an example.

[0028] The light receiving unit 2 includes an optical lens 5 , a b...

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Abstract

This optical characteristic measuring apparatus is provided with: an input unit to which a first exposure time and a first number of additions of measurements using a spectroscopic sensor are inputted; a calculation unit that uses the inputted first exposure time and the inputted first number of additions to calculate the measuring time (a first measuring time) of the measurements using the spectroscopic sensor; and a determination unit that determines at least one of a second exposure time and a second number of additions for measurements using a two-dimensional image sensor so as to reduce or eliminate a difference between the first measuring time and the measuring time (a second measuring time) of the measurements using the two-dimensional image sensor.

Description

technical field [0001] The present invention relates to, for example, a technique for measuring optical characteristics of a screen of a display. Background technique [0002] The optical characteristic measurement device is a device that measures optical characteristics (eg, color, brightness, gloss) using an optical sensor. The two-dimensional color measuring instrument is a kind of optical characteristic measuring device, and performs measurement related to the color of the measuring surface. The two-dimensional color measuring instrument is used in various industrial fields, for example, it is used to measure the chromaticity distribution of the screen of a display. [0003] Focusing on the characteristic that a spectroscopic sensor can measure the color of a measuring point (in other words, a spot area) with high precision, a two-dimensional color measuring instrument combining a spectroscopic sensor and an imaging unit for capturing a two-dimensional color image has b...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01J1/44G01J1/38G01J3/51G01M11/00
CPCG01J1/38G01J1/44G01J3/51G01M11/00
Inventor 前田穣
Owner KONICA MINOLTA INC