Optical grade quartz crystals
Technical specification to the optical crystals of synthetic quartz type OP -7 for the optical-electronic converters in photo - video to equipment for the production OLPF
- Crystal orientation - (RH).
| Grade | Qx106, min | α3500, max |
|---|---|---|
A |
3,0 |
0,033 |
B |
2,4 |
0,045 |
C |
1,8 |
0,060 |
| Class | Quantity and the size of inclusions, pieces in the cubic centimeter | |||
|---|---|---|---|---|
| <30mµ | 30-70mµ | 70-100mµ | >100mµ | |
la |
2 |
1 |
0 |
0 |
lb |
3 |
2 |
1 |
1 |
| Class | Maximum value per cm2 | Pits of the etching |
|---|---|---|
1 |
10 |
50 |
2 |
30 |
150 |
3 |
100 |
500 |
- The sizes of the crystals of quartz along the crystallographic axes are processed to the appropriate nominal size with the deviation from the orientation of ±30'
| Z, mm (±0,5 mm) | X, mm (±0,5 mm) | Y, mm (±0,5 mm) |
|---|---|---|
25 |
67 |
150-200 |
32 |
67 |
165-200 |
Or other sizes, as it is indicated in the specification of the customer
-
Quality of working crystal boundaries: on the specification of customer.
Technical specification to the optical crystals of synthetic quartz of the type optical for UV, the uniformity of the polarization
- Crystal orientation - (RH).
- Coefficient of the optical absorption: at the wavelength 200 nm and 2800 nm.
| Grade | α 200, cm-1 max | α 2800, cm-1 max |
|---|---|---|
A |
0,043 |
0,07 |
B |
0,061 |
0,09 |
C |
0,071 |
0,10 |
| Class | Quantity and the size of inclusions, pieces in the cubic centimeter | |||
|---|---|---|---|---|
| <30mµ | 30-70mµ | 70-100mµ | >100mµ | |
la |
2 |
1 |
0 |
0 |
lb |
3 |
2 |
1 |
1 |
| Class | Maximum value per cm2 | Pits of the etching |
|---|---|---|
1 |
10 |
50 |
2 |
30 |
150 |
- Uniformity of the polarization: the invisible differences between the crossed polarizer’s.
- The sizes of crystals along the crystallographic axes are processed to the appropriate nominal size with the deviation from the orientation not more than ±30'
| Z, mm | X, mm | Y, mm |
|---|---|---|
Z- crystal, RH and LH |
||
≤ 50 |
> 90 |
> 150 |
X- crystal, RH |
||
>80 |
≤30 |
>200 |
Or other sizes, as it is indicated in the specification of the customer