Products on stock: Precision and quality at a fair price.

At MICROS Optics, many products can be supplied ex stock or – if minor changes to dimensions are required – within a few days. If necessary, please indicate the listed item no., the drawing no. or the specifications and the quantity. We will be glad to send you our quotation immediately.

MICROS Optics Test Panels / References for Optical Element Inspection

MICROS Optics Test Panels are used for the visual comparison of surface imperfections on optical components such as scratches, digs, bubbles and inclusions, hairline cracks and prints. Surface imperfections can be evaluated by bare eye or a microscope.

MICROS Optics Test Panels are optically polished Borofloat glass plates on which the various dimensions of surface defects are applied photolithographically with chrome.

For this purpose, the standard specifications of DIN ISO 10110-7 and American standards such as MIL-PRF-13830B and ANSI/OEOSC OP1.002 and further standards are used.

MICROS Optics offers two different types of test panels:

The test panel according DIN ISO 10110-7 shows the preferred values of the number grades with which surface defects on optical components are compared.
The test panel for COMPARING SCRATCHES AND DIGS shows the preferred number grades for dimensions of surface defects used according to American standards. The numbers indicate the width in µm for scratches according to ANSI/OEOSC OP1.002 and the diameter in 1/100 mm for digs, where all of them accord to ANSI/OEOSC OP1.002 and the digs from 5 to 50 also accord to MIL-PRF-13830B. This test method should not be confused with the subjective comparison method with calibrated samples for scratches according to MIL-PRF-13830B. In our opinion the more accurate method to evaluate surface defects on optical components is the objective comparison method with defined scratches. This test method can be easily applied with the Micros Optics Test Panels.

Each standard has its own requirements for the sizes and density of scratches and digs.

Further specifications, such as restrictions on the length of scratches, the frequency of defects, edge chips, dependencies of the optics sizes, light sources and test setups can be found in the standard specifications.

To avoid misunderstandings manufacturers and users should always use the same test method.

Scope of delivery of our test panels:

Borosilicate glass substrate with photolithographic chrome structure with protective frame made of plastic
Dimensions of test panel including frame = 134x66x4 mm
Field of view size: 113x45 mm
PE foam case with clamp lock
Test documentation

Prices for Test Panels for comparing Scratches and Digs · Item No. 10207 or Panels as per DIN ISO · Item No. 22383	1 piece	449 €/piece
	2 pieces	394 €/piece
	3 pieces	380 €/piece
	5 pieces	349 €/piece
	10 pieces	286 €/piece
	more than 20 pieces	on request

Beamsplitter plates

Beamsplitter plates on stock

Substrate material	Borofloat in thickness of 1.1 mm
Dimensions in mm	115 x 115 / 50 x 50 / Ø50 / Ø25 / Ø12,5
Parallelism	≤ 2 arc min
Flatness	≤ 1λ per Ø25mm both sides
Surface defects	5/3x0.16 DIN ISO 10110-7
Coating	AOI = 45° Front side – Beamsplitter coating R / T = 30/70 %, 50/50% , 70/30% VIS : R/T ±5% @ 550 nm , ±10%avg @ 420-680 nm NIR : R/T ±5% @ 850 nm , ±10%avg @ 680-1020 nm Rear side – AR Broadband coating VIS : Ravg ≤ 1% @ 420-680 nm NIR : Ravg ≤ 1% @ 680-1020 nm
Prices	Depending on quantity required

Neutral density filter – reflective with metallic coating

ND Filters on stock

Substrate material

N-BK7 / Synthetic fused silica

Dimensions in mm

50 x 50 x 2 / Ø25 x 2 / Ø12,5 x 2

Parallelism

≤ 30 arc sec

Flatness

≤ 1λ per Ø25mm both sides

Surface defects

5/3x0.16 DIN ISO 10110-7

Coating

AOI = 0°

Optical density at
550nm ± 5 %

Transmission
in %

0,04 *

0,1

0,2

0,3

0,4

0,5

0,6

0,7

0,8

0,9

1,0

1,3

1,5

2,0

2,5

3,0

4,0

91,20 *

79,43

63,10

50,12

39,81

31,62

25,12

19,95

15,85

12,59

10,00

5,012

3,162

1,000

0,316

0,100

0,010

Please note

By combination of filters different densities can be achieved.
Set the coated side towards source of light
*Filter effect due to N-BK7 without coating

Prices

Depending on quantity required

Neutral density filter – absorbtion by filter glass

ND filters on stock