Precision optical components · Since 1965
Tolerances measured in arc-seconds.
Precision lenses, prisms, mirrors and coatings, built to your drawing in Roorkee, India, since 1965.
- Centration
- 30″
- Tilt / wedge
- 10″
- Irregularity
- λ/4
- Established
- 1965Roorkee · India
- Catalogue
- 100+Products
- Customers
- 10,000+Happy customers
- Quality system
- ISO 9001Certified
- Environment
- ISO 14001Certified
- Exports
- USAUKAUSBRACAN+ INPlus pan-India supply
Twelve families.
100+ products.
Catalogue parts, or made to your drawing in the materials and coatings we list.
Lenses, 11 types
Spherical, cylindrical, aspheric and custom lenses.
Prisms, 8 types
Steer, fold, invert and disperse light.
Optical Windows, 3 types
Protect delicate optics without bending the beam.
Beam Splitters, 3 types
Divide one beam into two, at the ratio you need.
Beam Samplers, made to drawing
Pick off a small, known fraction of a laser beam.
Optical Filters, 2 types
Pass the wavelengths you want. Block the rest.
Mirrors & Reflectors, 5 types
Aluminium, silver, concave and broadband metallic mirrors.
Diffusers, made to drawing
Turn harsh direct light into an even glow.
Linear Film Polarizers, made to drawing
Filter and control polarization.
Wave Plates & Retarders, 2 types
Rotate polarization with precision.
Beam Expanders, 1 type
Widen and collimate laser beams, fixed or variable.
Condensers, made to drawing
Brighter, sharper, more even illumination.
Find optics for your wavelength.
Drag across 0.15–16 µm or pick a laser line. Materials that transmit it light up.
633nm
Visible · redInvisibleHeNe laser
- Photon energy
- 1.96 eV
- Frequency
- 474 THz
- Wavenumber
- 15,798 cm−1
633 nm (HeNe) : BK7-class glass or UV fused silica lenses, prisms & windows.
8of 11 materials work here
Request a quote for 633 nmArrow keys change the wavelength, with Shift for bigger steps. Page Up and Page Down jump between common laser lines. Home and End go to the ends of the range.
01SiO2
UV fused silica
Recommended0.18–2.1 µm
UV lasers (266/355 nm), 532, 1064 nm
02BK7-class
Optical glass
Recommended0.35–2.0 µm
Visible, 532/633 nm, NIR imaging
03Al2O3
Sapphire
Transmits0.17–5.5 µm
Hard windows, harsh environments, MWIR
04Calcium fluoride
CaF2
Transmits0.13–10 µm
Excimer UV (193/248 nm), IR spectroscopy
05Barium fluoride
BaF2
Transmits0.15–12 µm
IR spectroscopy, scintillators
06Magnesium fluoride
MgF2
Transmits0.12–7 µm
VUV windows, wave plates
07Si
Silicon
Out of range1.2–8 µm
MWIR (3–5 µm) thermal imaging
08Ge
Germanium
Out of range2–16 µm
LWIR (8–12 µm) thermal imaging, night vision
09Zinc selenide
ZnSe
Transmits0.6–16 µm
CO2 laser optics (10.6 µm)
10Zinc sulphide
ZnS
Transmits0.4–12 µm (multispectral)
LWIR windows, multispectral domes
11Laser gain crystal
Nd:YAG
Lases at 1064 nm only1064 nm emission
1064 nm solid-state lasers
- Other IR & UV materialsAll optical glass types and other crystals, cut and polished to your drawing.Ask about your spec
NoteTypical useful transmission ranges; confirm for your thickness and coating.
Open the full material finderFrom raw glass to λ/4.
Follow one lens through eight operations, from blank to boxed.
01/ 08
Raw glass / crystal
Optical glass or crystal blank: BK7-class, fused silica, sapphire, Ge, ZnSe, CaF₂ and more.
- OP
- 010
- Material
- BK7-class glass
- Index
- nd 1.5168
Same part. Up to 10× tighter.
01Thickness tolerance
Commercial ±0.1 mmPrecision ±0.01 mm10× tighter
02Radius tolerance
Commercial 1%Precision 0.5%2× tighter
03Refractive index tolerance
Commercial 0.001Precision 0.000110× tighter
04Abbe (V-number) tolerance
Commercial 1%Precision 0.1%10× tighter
05Centration
Commercial 3 arc-minPrecision 30 arc-sec6× tighter
06Tilt / wedge
Commercial 1 arc-minPrecision 10 arc-sec6× tighter
07Surface irregularity
Commercial 1 fringePrecision 0.25 fringe (λ/4)4× flatter
08Surface quality (scratch-dig)
Commercial 60-40Precision 10-5Scratch 6× · dig 8× finer
Tested against light itself.
Our in-house QC lab measures form, angle and transmission with light, to fractions of a wavelength.
QC lab equipment
- Fizeau interferometerSurface form & flatness, in fringes
- Dual-axis autocollimatorsRank Hobson · micrometer drum
- Shimadzu UV-1601 spectrophotometerTransmission vs. wavelength
- Laser test benchOptics checked under a laser beam
- Coating test kitThin-film coating checks
One of the first lens companies in India to be ISO certified in quality systems.
Six industries.
One standard.
Industries we serve Aerospace & Defence
Night-vision optics · IR windows · Prisms
Medical & Life Sciences
Filters · Condensers · Lenses
Telecommunications
1550 nm · Windows · Beam splitters
Imaging & Machine Vision
Lenses · Filters · Polarizers
Industrial Automation
Laser optics · Mirrors · Beam expanders
Research & Development
Wave plates · Beam samplers · Custom
Made in Roorkee
since 1965.
About the company “The rich heritage of Universal Optics, which dates back to 1965, is something we are quite proud of.”
- Founded
- 1965 · Roorkee, India
- Units
- Manufacturing · QC lab · R&D
- Coating
- In-house thin-film
- Values
- Quality · Integrity · Innovation
- Location
- 29°51′ N · 77°53′ E
Send your drawing.
- 01Drop a drawing or spec sheet.
- 02Add material, wavelength and quantity.
- 03We reply with a quote by email.
+91 98971 52595+91 98370 39970
apoorv.g@universaloptics.co.in