SOMABLACK

SOMABLACK
image of SOMABLACK

SOMABLACK is a light shading/reflection preventing film for use in optical instruments.
It has a proven track-record for many years and reliability among users for use in camera units, etc. of silver-halide cameras, digital cameras and mobile phones.


Features

  1. It is made of a polyester film in which carbon black is mixed, and has excellent dimensional stability and good for punching work.
  2. With double-side sand-matte finishing, light reflectance is lowered, and further by special coating, electrical conductivity and sliding property are given.
  3. H type products particularly have high light-shading property which is comparable to silver-halide cameras.
  4. NR type products offer excellent reflection prevention effects comparable to pile (nap) finishing.

Product Line-Up and Properties

Product Type Examples of Applications
Ordinary Type
(SOMABLACK-R)
Spacers, washers, etc. that need to be black or matte finish in appearance.
High Light-
Shading Type
(SOMABLACK-H)
Light shading parts of optical instruments like a shutter and diaphragm, etc. of cameras.
Coating Type Type
(SOMABLACK-C)
Non-Reflection
Type
(SOMABLACK-NR)
Light-reflection prevention materials inside optical instruments, as well as outer parts.
Grade Property Examples of Applications
MD Matte Finish Camera shutters, diaphragms, spacers, washers, etc.
MDED Matte Finish & Electric Conductivity Camera shutters, diaphragms, spacers, washers, etc. that need the control of static electricity.
MDVD Matte Finish & Electric Conductivity/Sliding Property Camera shutters, diaphragms, zooming cylinders, etc. that need static electricity control and sliding property.

Grade Line-Up

Type Grade Thickness
[μm]
Specular
Glossiness(60)[%]
Optical Density[vis] Surface Resistivity[Ω/☐]
JIS P 8118 JIS Z 8741 X-Rite 361T(V) JIS K 7194
(Grade MD:JIS K 6911 )
SOMABLACK-R 25 MD 29±4 10.3 1.5 1013
38 MD 42±5 4.3 2.1 1013
50 MD 54±6 2.9 2.7 1013
75 MD 80±8 2.5 4.0 1013
100 MD 106±11 2.4 3.5 1013
100 MDED 108±11 3.6 3.5 106
188 MD 192±19 2.1 5.0≤ 1013
250 MD 255±20 2.1 5.0≤ 1013
SOMABLACK-H 50 MD 54±6 2.8 5.0≤ 1013
50 MDED 56±6 3.9 5.0≤ 106
50 MDVD 58±6 4.6 5.0≤ 106
SOMABLACK-NR N25 - 53±7 0.5 3.2 105
N50 - 83±13 0.3 4.8 105
N100 - 134±15 0.3 5.0≤ 105
T50 - 100±14 0.3 4.8 105
SOMABLACK-C 12 HR 25±2 0.9 5.0≤ 104
12 VD 22±2 3.6 5.0≤ 104
25 VD2 33±2 3.6 5.0≤ 104
25 VD 42±3 2.8 5.0≤ 104
38 VD 55±3 2.5 5.0≤ 104
50 VD 70±3 2.4 5.0≤ 104
100 VD 118±5 3.6 5.0≤ 104
125 VD 152±8 3.0 5.0≤ 104
37 ED 37±2 1.0 5.0≤ 105

All the figures are representative values.

For Contact

High-Tech Materials Department
11-2, Ginza 4-Chome, Chuo-Ku, Tokyo 104-8109, Japan
FAX: +81-3-3542-2170