General Optics

The optics still not standardized by us and is manufactured on request. Sometimes that means losses in time but enables you order what exactly you need. Stocked are many specific items in limited quantity. Following please find the specification bounds the main general optics is usually produced. Other specifications and products available on request.

Lenses. Spherical lenses plano- concave (PCV), -convex (PCX), bi-concave (BCV), bi-convex (BCX), meniscus (MNC), no micro- or polymer- lenses:
    Standard range:
        - focal length from 20 to 2000 mm,
        - aperture from 10 to 50 mm,
        - material fused silica (UV-, VIS-, IR- FS) or crown glass BK7,
        - quality - optical - finish 40/10 scr/dig, sphericity Lambda/2, centration 3 arc min,
        - quality - laser    - finish 20/5 scr/dig, sphericity Lambda/4, centration 3 arc min
    Options:
        - material - high index glasses, ZnSe, Si, Ge, CaF2, BaF2 or Sapphire,
        - AR-coated, mounted

Windows, Substrates. Available flat and spherical - PCV, PCX, BCV, BCX, MNC:
    Standard range:
        - radius of curvature from 20 to 7000 mm,
        - aperture from 10 to 50 mm,
        - material fused silica (UV-, VIS-, IR- FS) or crown glass BK7,
        - quality - optical        - finish 40/10 scr/dig, flatness Lambda/2, wedge 3 arc min,
        - quality - laser           - finish 20/5 scr/dig, flatness Lambda/4, wedge 10-60 arc sec,
        - quality - high power - finish 10/5 scr/dig, flatness Lambda/10, wedge 10 arc sec
    Options:
        - material ZnSe, Si, Ge, CaF2, BaF2 or Sapphire,
        - AR- or mirror, beamsplitter, dichroic, polarizing, etc. coated, mounted

Prisms. Right angle (AR90, BR180), spectral (dispersion), anamorphic (Littrow), triple (corner cube), Dove, Pellin-Brocat, Fresnel rhomb, etc.:
    Standard range:
        - angle accuracy from 5 arc sec to 5 arc min,
        - aperture from 10 to 50 mm,
        - material fused silica (UV-, VIS-, IR- FS) or crown glass BK7,
        - quality - optical - finish 40/10 scr/dig, flatness Lambda/2,
        - quality - laser    - finish 20/5 scr/dig, flatness Lambda/4
    Options:
        - high index glass,
        - AR- or mirror, beamsplitter, dichroic, etc. coated, mounted

Coatings. Multilayer dielectric mirror, beam-splitters, dichroic, anti-reflection, interference filter, polarizing, metal aluminum, gold, silver:
    Standard range:
        - high power with reflection from 0.1% to 99.9%,
        - quality 10/5 - 60/40 scr/dig
        - substrates of standard, nonlinear and laser active materials
        - metal mirrors protected
    Options:
        - your substrates
        - metal mirrors unprotected
    Note:
        - polarization must be specified in terms of s or p for tilted incidence

Phase retardation plates. Half- and quarter- wave in crystalline quartz:
    Standard range:
        - MO - multiple order (1-1.5 mm or more thick),
        - LO - low order (~0.3-0.5 mm thick),
        - ZO - zero order (compensated, thickness 2-3 mm, made of two optically contacted or air spaced phase plates),
        - diameter 20 mm,
        - wave front distortion w/10 per inch, finish 20/10 scr/dig
        - AR-coated R<0.25% each surface (high power)
    Options:
        - diameter from 10 to 50 mm,
        - mounted

Polarizers. Thin film dielectric, Glan-Taylor air spaced prisms. The later may be AR coated, Brewster shaped, made from material of different quality for high or low power, NIR-VIS or UV region systems  with correspondingly varying price. Standard dimensions are 10x10, 12x12, 15x15 mm. Optionally mounted.

Color glass filters. Made from Russian and Ukrainian (x-USSR) or Schott color glasses, supplied with transmission curves. Filter sets temporarily unavailable.

Some different specifications for the optics above available:
- dimensions, diameter up to 200 mm,
- focal length, radius of curvature from 5 mm to 10000 mm,
- quality up to as for single mode, high peak power lasers (and cheaper on request),
- general optics may be manufactured using crown glass, UV-, VIS-, IR- grade fused silica, Si, Ge, ZnSe, CaF2, BaF2, MgF, LiF, sapphire, SiO2, CaCO3, etc.,
- coatings available - metal, dielectric multilayer antireflective, semitransparent, high reflective, polarizing,
- surface flatness up to 1/20 wave at 633 nm and better,
- surface finish from 10/5 (0/0) to 80/40 scratch/dig (MIL),
- surface parallelism - from 0.5 arc sec to 5 arc min and more,
- clear aperture 80-100% of the physical,
- unmounted as a rule, mounted on request.

Email: open@optoteka.lt