Negative illumination of Indicator
What is negative illumination?
The engraved letters are clearly visible only when the light is on, and when the light is off, the engraved characters are hidden by the semitransparent black cover.
For Negative illumination, specify cover Semitransparent black (SK) and filter Milk-white (4).
The filter for negative illumination has black silk printing on one side.
The engraved area lights up and must be engraved.
Cover and filter color for Negative illumination
Cover color is Semitransparent Black.
Filter colors are
Red, Green, Yellow, Blue and Milk-white with Black silk printing.
| Semi-transparent | Red | Green | Yellow | Blue | Milk-white | |
| Flat Cover |  |
- | - | - | - | - |
| Filter | - |  |
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| Model | AL, BL, CL, FL, 3L, VL |
AL, FL | AL, FL | AL, FL | AL, FL | AL, BL, CL, FL, 3L, VL |
Illumination differences by a combination of cover and filter
Semitransparent black cover does not know the color of the LED
unless it lights up.
LEDs transmit illumination only to the engraved area.
| Lighting OFF | Lighting ON |
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| The engraved characters are hidden by the semitransparent black cover. |
The engraved letters are clearly visible only when the light is on. |
Attach the engraved black silk printing filter to the semitransparent black cover.
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Click an image to see lighting ON, and double click to see lighting OFF.
LED・Cover・Filter color
FAQ