In the product of the color or color, different light source, illumination or environment will make the naked eye to the color of the wrong judgment. And the standard light source box for the color of the goods deviation can have accurate control, accurate proof. Standard light box is widely used in all walks of life in the field of color management, can provide a standard objective light source, making the raw material and product color contrast to get accurate control. Standard light source for color light box related knowledge sharing
Standard light source for light color in addition to provide illuminant D65, while also providing CWF, UV, tl84, f / A, u30 and light source, on the market commonly known D65 light source, light source, light source, light source, seven light source, eight light source light box name, they have a test in the same color metamerism effect function, of course, different light source allocation function is not the same.
Let's look at the light source:
A.D65 light source: international standard artificial daylight (Daylight Artificial) light source;
B.CWF source: cold store light fluorescent;
C.UV light source: white fluorescent UV light source inspection;
D.TL84 light source: Europe, Japan, China store light source;
E.F/A light source: Huang Guangyuan. Hotel Familia with light, than the color difference reference light source;
F.U30 light source: warm white light, American store light source.
Standard light source box on the color deviation of the control is good, but it is often a headache for people to have a headache.
Let us look at its advantages and faults:
Advantages of standard light source box:
- display each light use time and total time;
- light automatic switch with metamerism function;
- without preheating, no flashing, can ensure the rapid and reliable evaluation of color;
- low energy consumption, no heating (no heat), high luminous efficiency;
- small volume, convenient use, low price.
Fault description of standard light source box:
1, through the power of the case, the whole machine did not respond, the display window is not bright.
The reason: insurance tube or transformer burned, (note that the power switch is turned on).
2, a group of light is not bright, and the rest of the normal.
Reason: key light, relay switch sound normal, then the ballast ring, if the button is not light, the relay did not ring, then the button or the relay circuit board.
3, the same group of tubes in a not bright, and the rest of the normal.
For a good reason: if the light tube replacement, determine the original tube bad, if not light ballast bad.
4, turn on the power ON/OFF, a group of light tubes are often bright, and the relay sound is too small, and the rest of the operation did not react.
Reason: the relay is damaged.
5, other operations are normal, the display window appears digital disorder.
Reason: the relay circuit board is bad, decoding IC bad.
6, light boxes in the work process, press a button light long light, according to other key no response, according to ON/OFF also can not shut down.
Reason: key board button short circuit switch board circuit short circuit.
7, all the lights are not bright, the display window there is light but no word.
The reason: the relay circuit board may be bad, bad or bad crystal IC.
8, button once, relay ring two times, the light flashes that destroy.
Reason: key board bad or bad relay.
9, with adjustable light source box, light but can not adjust brightness.
Reason: adjustable resistance (potentiometer) or ballast is bad.
10, the same position often burn lamp.
Reason: the output current is not stable, it is also possible that the circuit board is not stable, but the probability is very small.