BM-series

ยี่ห้อ : Topcon

Outline

Recently, luminance and chromaticity management of FDD, Automotive instruments, Fluorescent substance and optical device has been increased.
BM-5AC is a high sensitivity luminance colorimeter combines high reliability, operability and high speed.

Features

￭ 5 steps selectable measurement angle.
It can measure the object from particle area to wide area without attachment lens.
￭ Built-in analog output, it can be data collect a data with a oscilloscope.
￭ High speed response speed 0.05ms (Max).
Building up and falling down time of the flicker light can be measured using Oscilloscope.

Principal use

￭ Measurement luminance and chromaticity.
– TV, PC, Tablet, Smart phone display.
– Ultra micro spot for automobile interior panel.
– Fluorescent material, phosphorescence material, special light source.

Specifications

Photo detector	Photomultiplier tube
Optical system	Objective lens : f=80mm F2.5, Eyepiece lens : View field 5°
Spectral sensitivity	Similar to CIE1931 color matching function
Measurement angle	3°/2°/1°/0.2°/0.1° *selectable
Measurement distance	350mm – ∞ (Distance from metallic tip of objective lens)
Measurement range	Auto/Manual 5-range
Function(*1)	x, y, L 　（x, y: chromatic coordinate, L: luminance） and ±⊿ u’, v’, L　（u’, v’: chromatic coordinate, L: luminance） and ±⊿ X, Y, Z　（X, Y, Z: Tristimulus value） and ±⊿ Tc, duv, L （Tc: Correlated color temperature and Deviation） and±⊿ CIE1976 Lab, ⊿Eab and±⊿, CIE1976 Luv, ⊿Euvand±⊿
Measurable range(*2)	0.00005 – 1,200,000 cd/m²
Accuracy in luminance(*3)	±4% or less
Accuracy in chromaticity	(1) dx,dy : ±0.005 or less (3) (2) dx,dy : ±0.008 or less (4)
Repeatability in luminance(*5)	2.0% : 0.005 – 0.025cd/m² 0.8% : 0.025 cd/m² or more
Repeatability in chromaticity(*6)	0.003
Measurement time(*7)	Approx. 2sec
Response speed	NORMAL MODE (All Range) : Approx. 30ms FAST MODE : Range-1: Approx. 5ms　　Range-2: Approx. 0.5ms Range-3: Approx. 0.05ms Range-4: Approx. 0.5ms Range-5: Approx. 0.05ms
Analog output	DC 0 – 4V (X2･Y･Z)
Display	Dot-matrix 20 characters x 4rows with backlight
Interface	RS-232C, USB
Power supply	Dedicated AC adapter AC100V-240V, 50/60Hz
Power consumption	Approx. 20W
Use conditions	Temperature : 0-40℃, Humidity : 85% RH or less (No condensation)
Outer dimensions (W×D×H)	154×355×212mm
Weight	3.6kg

(*1)±⊿ : difference of standard value.
(*2)For standard illuminance A.
(*3)For standard illuminance A, Auto Rage.
(*4)For a combination of the standard source A and the next colored glass,when COLOR ADJUSTMENT is applied.
O-55,Y-48,A-73B,IRA-05,T-44,R-61,B-46,V-44,G-54)
(*5)For standard illuminance A, measuring angle 3°, 2σ, Single mode, Auto Range.
(*6)For standard illuminance A, 2σ, Single mode, Auto Range.
(*7)Single measurement mode.