Klein K Series Bedienungsanleitung
© 2003 Klein Instruments Corporation
Klein K-Series Colorimeter
K-1
K-10
User's Manual
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While every precaution has been taken in the preparation of this document, the publisher and the author assume no
responsibility for errors or omissions, or for damages resulting from the use of information contained in this
document or from the use of programs and source code that may accompany it. In no event shall the publisher and
the author be liable for any loss of profit or any other commercial damage caused or alleged to have been caused
directly or indirectly by this document.
Printed: April 2003 in Portland, Oregon USA
Klein K-Series User's Manual
Copyright © 2003 Klein Instruments Corporation
Table of Contents
Foreword 1
Part I Introduction 2
................................................................................................................................... 21 Welcome
................................................................................................................................... 22 Unpacking the K Colorimeter
................................................................................................................................... 23 Product Overview
Part II Chapter 1: Installing the PC Program 3
................................................................................................................................... 31 Installing the PC Program
Part III Chapter 2: Taking a Color Measurement 4
................................................................................................................................... 41 Taking a Color Measurement
Part IV Chapter 3: Gamma Measurements 6
................................................................................................................................... 61 Gamma Measurement
Part V Chapter 4: Flicker Measurements 7
................................................................................................................................... 71 Flicker Measurements
Part VI Chapter 5: Data Logging 8
................................................................................................................................... 91 Data Logging, Single White Point Spec
................................................................................................................................... 132 Data Logging Multiple White Specs
................................................................................................................................... 153 Making and Printing Reports
Part VII Chapter 6: Custom Calibration 18
................................................................................................................................... 181 Custom Calibration
Index 26
IContents
I
© 2003 Klein Instruments Corporation
Foreword
This is just another title page
placed between table of contents
and topics
Foreword1
© 2003 Klein Instruments Corporation
Introduction 2
© 2003 Klein Instruments Corporation
1 Introduction
1.1 Welcome
Klein K Colorimeter Manual v 3.0.145
Congratulations for purchasing the Klein K Colorimeter. The Klein K Colorimeter is a highly accurate
serial port colorimeter and flicker meter with included PC program. Its optical filters are carefully
constructed to conform to the CIE 1931 Photopic xyY color measurement system. The electronics of the
colorimeter take 256 simultaneous XY and Z readings per second, and communicate these to a
controlling PC program via the PC RS-232 comm port.
1.2 Unpacking the K Colorimeter
Hardware
K-1 Colorimeter
The Klein Instruments K-1 Colorimeter includes:
Klein K-1 Colorimeter body
Black Rubber slip-on boot
Attached Cable; Comm with Power
RS-232 9 DIN comm plug
5v connector (USB male style plug)
5v Power Supply (USB female style plug)
CD including Klein K Colorimeter PC program and Manual
K-10 Colorimeter
The Klein Instruments K-10 Colorimeter includes:
Klein K-10 Colorimeter body with lens
Black Rubber boot with 52mm threads
Attached Cable; Comm with Power
RS-232 9 DIN comm plug
5v connector (USB male style plug)
5v Power Supply (USB female style plug)
CD including Klein K Colorimeter PC program and Manual
The K series Colorimeter is a serial port device, intended to be used with the Klien K Colorimeter PC
program. It draws power from an attached 5v cable (USB style connector). The 5v power may also be
taken from a standard USB port.
1.3 Product Overview
Hardware Requirements
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© 2003 Klein Instruments Corporation
To use the K Colorimeter, you must have a
·
K Colorimeter
·
5v Power Source (supplied, or plug into a USB port for power)
·
Windows based PC with a RS-232 comm port (win 95 or greater)
·
Klein K Colorimeter PC program (requires 20M of hard drive space)
K-1 Colorimeter
The K-1 is designed for measuring luminance and color from a diffuse source, such as a CRT. The K-1 is
also useful for taking Lux measurements from a front projector.
K-10 Colorimeter
The K-10 has a +/- 5 degree angular input aperture, and is used for measuring luminance and color from
a directional but partially diffuse source, such as an LCD display or a rear projector display.
Flicker Meter Function Included
Both the K-1 and the K-10 are also fully functional flicker meters. They feed real time data to the pc
program which performs a Fast Fourier Transform and graphs the data as frequency versus amplitude.
OpticalFilters
Inside the Klein K Colorimeter are three optical filter sets, one each for CIE X, Y, and Z, and three silicon
detectors.
Electronic Filters, A/D and Microprocessor
Each Optical Filter and silicon detector has its own electronic channel consisting of a 6 step auto-
ranging amplifier and access to a 12 bit A/D with 4 dither steps. The A/D is read 256 times per second
by a microprocessor.
Each electronic channel amplifier has a 3 pole 28 Hz analog filter, which, along with digital the averaging
function, filters out unwanted 60 Hz and faster noise. For flicker measurements, the data is sent as raw
unaveraged 256 measurements per second.
On-board Flash Memory in the Colorimeter
The K Colorimeter will store up to 96 custom calibrations in Flash memory. These are easily accessable
via the Klein Colorimeter PC program. The calibration files can be named by monitor type for ease of
remembering which calibration file is which.
2Chapter 1: Installing the PC Program
2.1 Installing the PC Program
The Klein K Colorimeter PC Program is intended to be run on pc's with windows 95 and later. The PC
program uses a comm port for communication to the colorimeter, and it uses database functions for data
logging.
Chapter 1: Installing the PC Program 4
© 2003 Klein Instruments Corporation
To Install the Klein K Colorimeter PC Program
On the CD included, find and open the file: "Setup.exe".
Install the Klein PC program in the locations suggested.
The installation of the Klein K Colorimeter PC Program will add folders and files to the newly created
folder:
C: \ Program Files \ KLEIN
In addition, the program makes use of microsoft .dll files. If these are missing from your computer, the
setup program installs them. If they already exist on your pc, the setup program will allow you to keep
the old files or install new ones.
If you log data, the log files will be found in the folder:
C: \ Program Files \ KLEIN \ DataBase
To Uninstall the Klein K Colorimeter PC Program
If you wish to uninstall the program, Klein recommends that you simply delete the KLEIN folder. This has
shown to be effective and safe.
If you wish to remove all the Microsoft .dll files that the Klein Setup may have included, you may use the
Microsoft START / Settings / Control Panel / Add_Remove Programs.
3Chapter 2: Taking a Color Measurement
3.1 Taking a Color Measurement
Attaching the Colorimeter to the PC
To attach the Colorimeter to a PC, plug the 9 pin Comm connector into the PC's comm port. Also attach
the USB style connector to the (supplied) 5v source. For the 5v source, you may instead use one of your
PC's USB ports as a power source. If you know which comm port you have attached to, you may enter it
into the PC program (below).
Run the Klein PC Program
The Klein K Colorimeter program is accessable from the "Start" button, then "Programs", then "Klein".
The Klein K Colorimeter program can also be found in C:\ Program Files \ Klein.
Theprogram interface::
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© 2003 Klein Instruments Corporation
With the CIE Chart Graph Mode chosen, the display may look like this:
On first hookup, there may be an error message telling you that the colorimeter is not responding.
In the menu item "Comm", choose the comm port to which the colorimeter is attached. Press "Measure
Color" to test the comm connection.
Also on first hookup, the program will load use the "Factory Default" Color Correction file.
Press the "Measure Color" button.
Chapter 2: Taking a Color Measurement 6
© 2003 Klein Instruments Corporation
The Measure Indicator above the "Measure Color" button will begin to flash, and u'v'Y values will begin
to show in the measurement windows, and also the graph area.
You may switch color measurement from xyY ot u'v'Y by pressing the Display Units buttons.
This will also change the graphic units.
You may view the graphic of the color data by choosing the Graph to be CIE (shown above), Maginfied
(for a closer look at the center of the CIE graph), or Bar (startup default. Sliders, for making adjustments.
There will also be an "OK/NoPass" shown below the Y slider. This can be turned on or off from the menu
item "Setup".
4Chapter 3: Gamma Measurements
4.1 Gamma Measurement
The Gamma Measurement function is accessed from the "Gamma" button on the main window.
By aiming the colorimeter at a display which is running the Klein K Colorimeter PC program, the user
can run a test which will calculate the gamma of the display and display driver.
The number of video intensity steps is programmable in the menu item"Gamma Test Setup".
When the colorimeter has taken the number of readings required by the Gamma Test Setup, a graph is
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© 2003 Klein Instruments Corporation
created, showing Gamma, Contrast Ratio, and White Balance at Grey Levels. The OK / NoPass criteria
for gamma is set in the menu "Gamma Test Setup".
The gamma report includes a graph of R, G, B, and Y (white Intensity) gamma, and the determined
Gamma value for white.
5Chapter 4: Flicker Measurements
5.1 Flicker Measurements
The flicker feature of the Klein K Colorimeter PC program is accessed by pressing the "Gamma" button
on the Main window.
The colorimeter provides raw Y data at 256/second. The pc program has downloaded a conversion file for
frequency sensitivity, and uses it to scale the FFT tranform of the received data. The data is updated 8
times per second.
The flicker shown is for Y of a display, and it is graphed in true intensity versus frequency. It is displayed
in percent, or dB.
There is a button which will apply a JEITA discount to the flicker FFT data. Highest flicker intensity, and
frequency is displayed, along with the entire intensity versus frequency curve.
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