home products IR Filter & OLPF

IR Filter & OLPF


Alpha Optik can process the OLPF, IR cutting filter, glass lens, windows, various kinds of cover glass with the 100 and 10 class cleaning room. we have the advanced optical coating machine, the ultrasonic washing machine, cutting machine and the various inspection equipment… Our products widely used in different fields: cellphone, digital camera, digital video, CCTV system, car camera, city traffic system…

related Product


IR Filter can cut-off infrared rays reached to sensor. By installed IR Filter to the lens unit or holder, it will be able to eliminate an appeared error such as flickering Image while taking a picture. Alpha Optik produce the circle and square filter with each grade of Mega Pixel (20um) and VGA (30 um) with a custom-designing.
Alpha Optik IR cut-off filter can sharply cut infrared ray.

北京拜波赫光电科技有限公司 北京拜波赫光电科技有限公司 北京拜波赫光电科技有限公司


Process Equipments:

optical polishing compound machine coating machine
quartz cutting  ultrasonic cleaning cutting machine

Technology :

There is the specialist crystal technology: from cutting, polishing, flatness technology, cleaning, coating, combining technology…
Angle cutting tolerance improving from +/-0.3’ to +/-0.1’;
Thickness tolerance improving from +/-0.05 TO +/- 0.025mm, and cutting speed improving from 1.2mm/H to 9mm/H, all by ourself-made Multi-cutting machine.
The flatness technology can let the 4 angle and 8 sides be polishing at the same time. And the quality can be improved about 50%;


Produce capacity

  • OLPF———————————————3KK/M;
  • Crystal Thermal Diffusion Panel————-500K/M;
  • Blue thermal Diffusion Panel—————–100K/M;
  • IR filter——————————————-7KK/M;

OLPF Standard products
Single OLPF

Iterm Standard Special
Size of Substrate Size 1/2sensor 9.2X10.4, 11X12(mm) Customized
1/3sensor 7.3X8.2, 8.2X8.8, 9X10(mm) Customized
1/4sensor 6.5X7.3, 7.3X7.8(mm)
1/6sensor 5.3X6.0, 5.8X6.3(mm) Customized
Tolerance ±0.1mm
Thickness/quality Thickness tolerance 0.30±0.02mm
0.70±0.05mm Customized
Surface roughness ±0.05mm,±0.03mm
Coating Single coating Reflect 1.5% max./550nm
Multi coating Reflect 1.0% max./450-650nm
Chip and dot Under 30um
Efficiency Scopes 1mm to the side Customized
Reliability (60℃,90%) Two side mult-coating 300H,500H
IR cut coating 300H Customized


Model Specification Description CCD models
BBF-001 8.8*8.2*1.63 1/3 of a single crystal film 2321/2311 255/405
BBF-002 8.8*8.2*1.63 Day and night 1/3 of a single crystal film 2321/2311 255/405
BBF-003 7.8*7.3*1.22 1/4 of a single crystal film 2421/2411 227
BBF-004 7.8*7.3*1.22 Day and night 1/4 of a single crystal infrared flu tablets 2421/2411 227
BBF-005 8.8*8.2*1.22 1/3 of a single crystal film 2421/2411 227
BBF-006 8.8*8.2*1.22Day and night 1/3 of a single crystal infrared flu tablets 2421/2411 227
BBF-007 8.8*8.2*2.78 1 / 3 double-crystal films 2321/2311 255/405
BBF-008 8.8*8.2*2.78 Day and night 1/3 double-crystal infrared flu tablets 2321/2311 255/405
BBF-009 8.8*8.2*1.08 1/3 of a single crystal film 2361 259/409
BBF-010 8.8*8.2*1.08 Day and night 1/3 of a single crystal infrared flu tablets 2361 259/409
BBF-011 8.8*8.2*2.58 Three-crystal 2361 259/409
BBF-012 8.8*8.2*2.58 Day and night Sense of three-crystal infrared 2361 259/410
BBF-013 8.8*8.2*0.7 Common type of optical glass
BBF-014 8.8*8.2*0.7 Day and night Day and night optical glass type