Neutral density filters, absorbing and reflective
Precision and quality at a fair price
The stock items listed above can be cut to your desired dimensions and delivered within a few days.
If you are interested in a product, we will provide you with a fair quote. Request your desired product from us now!
Neutral density filters
reflective with metallic coating
Substrate material
N-BK7 / Synthetic fused silica
Dimensions in mm
max. 55x55 mm
Smaller dimensions available upon customer request.
Special sizes available upon request.
Parallelism
≤ 30 arc sec
Flatness
≤ 1 λ / Ø25 mm both sides
Surface defects
5/3x0.16 DIN ISO 10110-7
Please note
By combination of filters different densities can be achieved.
Set the coated side towards source of light.
Coating
AOI = 0°
| Optical density at 550 ±5 % |
Transmission in % |
|---|---|
| 0,04 * | 91,20 * |
| 0,1 | 79,43 |
| 0,2 | 63,10 |
| 0,3 | 50,12 |
| 0,4 | 39,81 |
| 0,5 | 31,62 |
| 0,6 | 25,12 |
| 0,7 | 19,95 |
| 0,8 | 15,85 |
| 0,9 | 12,59 |
| 1,0 | 10,00 |
| 1,3 | 5,012 |
| 1,5 | 3,162 |
| 2,0 | 1,000 |
| 2,5 | 0,316 |
| 3,0 | 0,100 |
| 4,0 | 0,010 |
*Filter effect due to N-BK7 without coating
Prices
Depending on quantity required
Neutral density filters
absorbtion by filter glass
Substrate material
SCHOTT or Hoya
Dimensions in mm
max. 165 x 165 mm
Smaller dimensions available upon customer request
Parallelism
Upon agreement
Flatness
Upon agreement
Surface defects
In accordance with DIN ISO 10110 or American standards
Optische Dichte
Calculation of optical density and corresponding fine thickness determination by MICROS Optics according to your request
Prices
Depending on dimensions and quantity required
Achieving reproducible quality
With high-precision measurement technology
You need reliable high quality in our various precision optics, spherical optics, and technical glass products. We achieve this quality for you thanks to our high-quality measurement technology and measuring equipment.
Upon customer request, we will provide you with a test report containing all the required test characteristics. All materials used are tested in accordance with current specifications and certified upon request. We guarantee you consistently high quality!
- Visual defect inspection
- Angle measurement
- Parallelism measurement
- Interferometer evaluation
- Roughness measurement
- Spectral reflection and transmission measurement
What you can rely on
Made in Germany
International
High quality
Professional
Independent
Personal
Plano optics
Windows and Optical Flats. Customized filters. Precise prisms, wedge plates, and light guides. From specific filter properties to optical or metallic coatings: When it comes to plane optics, we offer the ideal, customized solutions you need for your products and services.
Spherical optics
With MICROS Optics, you are guaranteed lenses, achromats, and cylindrical optics of the highest quality in terms of imaging and beam accuracy. We not only supply the industry with series products, but also deliver prototypes, small series, and pre-series for development and laboratory purposes for cameras and laser technologies.
Technical glasses
Your applications and uses: We develop the optimal solution based on your ideas with refined, technical glass from MICROS Optics. With the latest technologies and consistent process optimization, we can offer you the most economical solution. We supply the entire spectrum of glass refinement as individual parts or large series in consistently tested quality. We take into account what matters: high resistance to acids, alkalis, organic substances, and corrosive environments; high electrical resistance; enormous long-term durability; transmission and reflection; scratch resistance; and mechanical stability—to name just a few.
Every prototype starts with an idea.
From the idea to series production.
From the idea to prototype production to the manufacture of spherical optics, high-precision flat optics, technical glass, or optical assemblies, we will find an efficient product solution for you.
Concept
No matter how challenging the task, we work with you to develop solutions tailored to your individual needs.
Design
Designing means developing the blueprint for a technical product in such a way that it can be manufactured. We have the relevant expertise and the necessary technical equipment to do this.
Production
Your product is manufactured in our production facility according to your individual specifications. Our many years of experience and modern machine and plant technology are a great advantage for you here.
Testing
All manufactured components undergo the necessary testing processes. The measurement results are documented accordingly.
Delivery
We deliver your components in standard packaging as well as in special packaging tailored to your specific requirements.
