Flat optics

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Plano optics in a multitude of shapes, sizes and specifications

Flat Optics Factory

Although we typically start with blanks, to shorten deliveries we have the capability for earlier stage processing by sawing, core drilling, and shaping from slab to produce the optical blank. We have an extensive range of machining capabilities. From mechanical and CNC mills to continuous and double-sided- polishers with pitch and synthetic laps. We carefully plan the entire process using the right combination of tooling, fixturing, equipment, and materials and operator know-how to achieve planned results.

Optical tolerances

PFG delivers high performance mirrors, windows and wedges in a wide variety of shapes, sizes and materials. We are accustomed to working with most all optical glasses (100+), fused silica and crystalline substrate materials such as CaF2, Ge, MgF2, Si, ZnSe, ZnS and Amtir. Our technicians are able to produce optical flats to the most demanding specifications for flatness, transmitted wavefront, parallelism (angular tolerances on wedges) and surface cosmetics.

Specification Limit
Diameter (mm)
±0.125 to within ±0.005
Surface Quality
10-5
Angles / Beam Deviation
to within ±1 arc second
Irregularity (λ)
1/20
Surface Flatness (λ)
1/20
Radius (mm)
±0.0025
Transmitted Wavefront (λ)
1/20
Sharp Roof Chips (mm)
0.005
Surface Roughness (Å, RMS)
2
Optical tolerance chart

Review our standard and best tolerances. However, if these don’t perfectly fit your needs, please reach out to us so we can discuss what we can do for you.

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Optical Flat Products

PFG delivers high performance mirrors, windows and wedges in a wide variety of shapes, sizes and materials. We are accustomed to working with most all optical glasses (100+), fused silica and crystalline substrate materials such as CaF2, Ge, MgF2, Si, ZnSe, ZnS and Amtir. Our technicians are able to produce optical flats to the most demanding specifications for flatness, transmitted wavefront, parallelism (angular tolerances on wedges) and surface cosmetics.

Whether using continuous polishers or double-side polishers, we confidently select the optimal process technology, and adhesion and blocking method (pitch, tape/wax or optical contacting) to meet your specifications. Our polishing technicians clearly understand that substrate type, dimensions, blocking method and material, final shaping, aspect ratio and coating, all significantly impact the end result. For wedged optics we have an extensive inventory of tooling, in many instances allowing us to avoid tooling charges and to reduce delivery times to our customers.

Coatings range from the deep ultraviolet through the mid-wave infrared. We provide dielectric and metallic mirrors; as well as notch, edge, dichroic, color substrate and neutral density filters.

Optical Mirrors

Optical Mirrors

Optical Windows

Optical Windows

optical flats

Optical Filters

Optical Wedges

Optical Wedges

optical flats

Optical Flats

uv windows

UV Windows

IR Windows

IR Windows

Bandpass Filters

Bandpass Filters

flat optics

Custom Optical Flat Products

Whether using continuous polishers or double-side polishers, we confidently select the optimal process technology, and adhesion and blocking method (pitch, tape/wax or optical contacting) to meet your specifications. Our polishing technicians clearly understand that substrate type, dimensions, blocking method and material, final shaping, aspect ratio, and coating all significantly impact the end result. For wedged optics we have an extensive inventory of tooling, in many instances allowing us to avoid tooling charges and to reduce delivery times to our customers.

Order your precision optics today

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US manufacturer of high precision optical components (UV thru mid-IR) with a multi-decade track record of reliably producing quality commercial and military optics. Capabilities include spherical – doublets/triplets – and optical flat prisms, wedges, beamsplitters, polarizers, filters, and mirrors. Our in-house coating facility offers a wide variety of custom coatings, including high power laser coatings, ITO, and high durability ARs.

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