Our Capabilities

Lenses

Material As requested
Radius of Curvature R ≥ 3
Surface Accuracy 0.2-1 fringe
Centration ≧ 10”
Surface Quality MIL 20-10
DIN 3X0.063
Diameter 3 to 200mm
Thickness > 0.025
Dimension Tolerance ± 0.005
Monolayer Coating ± 10nm
Coating Types Refer to *
Material Abrasiveness ≤ 451
* Multi-layer (AR), Aluminum (AL), High Reflective (HR), Infrared (IR), Phase & Polarizing.

Window

Material As requested
Dimension Tolerance ± 0.005
Surface Quality MIL 20-10
DIN 3X0.063
Surface Accuracy 0.2 – 1 fringe
Parallelism Deviation ≤ 3”

Prisms

Material As requested
Dimension Tolerance ± 0.01 ~ 0.2
Angle Tolerance 1” ~ 5”
Surface Quality MIL 20-10
DIN 3X0.063
Surface Accuracy 0.2-1 fringe

Reticle

Project Description Test
Line-width
    a. The most accurate 0.003 / 0.005mm tolerance ± 0.00025mm
    b. The general accuracy of 0.010 mm tolerance ± 0.0005mm
 Microscope (x200)
Regularity Line Width does not exceed the tolerance or collimation requirements. Microscope (x200)
Glass Substrate General Material : N-BK7 (H-K9) / B270;  
According to customer requirements, Quartz or Sapphire can be used.
Coating Materials Chromium - Cr Ni -Ni  
Plated on both sides of the reticle system AR.
Exterior 5/ 1 x 0.063
Surface Type 3/ 1 (0.3)
Reliability Test
  • Temperature shock -40°C to 90°C cycle x 24H
  • Salt spray test 0.5% NaCl in atomization solution environment
  • Surface hardness > 8H ( the coated surface )
  • Anti-friction test : 5N; standard steel wool ; 10Min
  • Adhesion test : 3M tape TYPE 600 #; boiling water; 30Min