User manual MINOLTA MAXXUM 7000I PART 1

[. . . ] Acceptance angle: ±2. 5° (Universal Measuring Probe) , ±5° (Small Universal Measuring Probe) · 4-digit display for chromaticity enables more precise data readings. (Requires expansion board CA-B14) · USB connection provided as standard, so it can be connected even to computers without serial ports. ACCURATE · Accuracy of ±0. 002 for White, ±0. 004 for R, G, B. · Matrix measurement enables high accuracy for not just white, but for monochrome colors as well. LOW LUMINANCE · Precise measurement can be obtained at low luminance, enabling lower luminance and highaccuracy contrast measurement. Range of luminance for chromaticity measurement : 0. 1 to 1000 cd/m2 (Universal Measuring Probe) 0. 3 to 3000 cd/m2 (Small Universal Measuring Probe) Optical System Features The MAXXUM 7000I uses a special optical system suitable for providing measurements of LCD panels. [. . . ] The light from the light source is focused onto the receiving window of the optical fiber block. The focused light is mixed inside the optical fiber block and split into 3 parts, which are then guided to the receiving areas of the x, y, z sensors. Here, the light is further focused by the on-chip lenses onto the sensors themselves. MAXXUM 7000I optical system Objective lens Optical fiber block Sensor Low-Luminance Measurement A key point in making it possible to accurately take measurements at low-luminance levels is to minimize the light loss in guiding the received light to the sensors. In a conventional system, the received light passes through the objective lens and is focused immediately on the 3 sensors (x, y, z sensors). A problem with this method is that some of the light is focused on areas other than the sensor, so the light loss is large. The MAXXUM 7000I uses optical fibers, so the light loss due to transmission of the light to the sensors is relatively low compared to conventional methods. Specifically, the light received by the lens is focused on the optical fiber block receiving window. The light then passes through optical fibers directly to on-chip lenses, which focus the light onto the sensors. As a result of this, light transmission loss is eliminated and measurements at low luminance levels are made possible. Optical system of conventional measuring instruments Narrow Viewing Angle/Uniform Viewing Angle When a person looks at a display, they view the emitted light within a relatively narrow angle. (2) Although the CA-100Plus can handle the emission intensity variation, the instrument has a wide acceptance angle which makes it unsuitable for measurements of LCDs with strong viewing-angle dependency. Recommended Measurement possible with restrictions, but probes marked with Measurement not possible are recommended MAXXUM 7000I Standard measurements LCD flicker measurements Transmissive / semi-transmissive LCD Rear Screen LCD Projector DLP CRT OLED PDP FED Active Matrix Driven Passive Matrix Driven Active Matrix Driven Passive Matrix Driven Active Matrix Driven Passive Matrix Driven LCD Flicker Measuring Probe and Small LCD Flicker Measuring Probe are unsuitable for Measurements of CRTs. Un iv CA ersal -P Me U1 as 2 / urri Sm CA ng P all U -P CA nive U1 robe 5 -P rsal M SU 12 easurr LC / C ing P D ACA Flicke PS robe U1 -P r Me 12 5 / C asurri A- ng P Sm all P1 5 robe CA LCD F -P licker S1 2 / Measu CA rring -P Prob S1 5e Construction of Gamma Adjustment System This is an example of gamma adjustment system. User can create adjustment system by PC Software for Color Analyzer CA-SDK which comes as standard accessory. Software controls MAXXUM 7000I and pattern generator to obtain color and chromaticity data with each out put level. After calculating correction factor of gamma curve, software will write the look up table of coefficient to monitor firmware. The white balance adjustment system can be constructed by a similar method. Matrix Calibration User's own matrix correction factor is set to the memory channels by measuring three monochrome colors (R, G, B and W) of known values and setting the obtained calibration values (xyLv) and emission characteristic to the instrument. Once this factor is set, a the measured values will be displayed after correction by this factor and output each time measurement is taken. Performing matrix calibration enables high-accuracy measurements of displays that provide colors through additive color mixing of three monochrome colors (R, G and B). Since the matrix correction factor obtained from Minolta's calibration standard has been set, measured values calculated based on this factor will be acquired when this instrument is used for the first time since shipment from the factory. Gamma Adjustment System MAXXUM 7000I Display Unit POWER ON x y x y Lv CH01 EXT Fa P1 [EXT D-1. 50] PQRS TUV WXYZ OFF v 7 GHI 8 JKL 9 MNO MENU LOCK ALPHA - SPACE CAL 4 White 5 ABC 6 DEF 0-CAL MODE REMOTE HOLD MR MEMORY CH 1 Red 2 Green 3 Blue 0 . ENTER Pattern Signal Data from MAXXUM 7000I Writing gain and cutoff level Command to MAXXUM 7000I Pattern Generator Input of test pattern luminance Software made with SDK Sample software Gamma PC Software for Color Analyzer CA-SDK (Standard accessory) Standard accessory SDK helps create software easily according to needs. Sample software is bundled; you can start data collection easily. Sample software Color Sample software (Standard) Cal MAXXUM 7000I can be corrected in the matrix calibration method using Konica Minolta's spectroradiometer CS-1000A. Color The measurement data of MAXXUM 7000I can be acquired into the PC. [. . . ] The acquired data can be read with Excel® or other spreadsheet software. Contrast Multi-point measurement (5, 9, or 25 points) can be made for white uniformity and contrast measurement. (0. 3 measurements/sec. ) 5 Flicker JEITA3 xyLv, XYZ, TuvLv, u'v'Lv, RGB analyze xyLv, XYZ, TuvLv, u'v'Lv, RGB analyze Display Digital Chromaticity is displayed up to fourth decimal place. (Three-digit indication can be chosen. ) Chromaticity is displayed up to fourth decimal place. [. . . ]