Optical Dome

Optical Dome

Optical Components-Optical Dome 

Optical Components-Optical Dome Introduction:

Optical domes are lenses with two concentric spherical surfaces. Sometimes they are referred to as bent plane parallel plates. Consequently it is usual to define parallelism between two surfaces as the maximum thickness variation between the two surfaces. In perfect domes, the convex radius equals the sum of the dome thickness and concave radius. Optical domes are used for underwater photography, as a part of a protective case. Also they are as a part of sun tracking used in solar collectors.

Optical Dome component Manufacturing Specifications: 

Diameters of optical domes are ranging from 15 mm to 280 mm with precision tolerances.

- Manufacture High-precision optical domes, diameter from 15 mm to 125 mm.

- Manufacture Commercial optical domes, diameter from 125 mm to 280 mm. 

optical components Surface quality:

40-20 for high precision optical domes.

80-50 for commercial optical domes. 

Optical Components-Optical Dome Concentricity:

< 0.02 mm for diameter of optical domes less than 50 mm.

< 0.05 mm for diameter of optical domes less than 125 mm.

< 0.2 mm for diameter of optical domes large than 125 mm.

Chamfer or Bevel:

For the optical dome with a diameter less than 125 mm, no chipping or cracking will occur after chamfer. Chamfer tolerance of the underwater domes is ± 0.1 mm.

-What are the materials of optical domes

Optical glass, such as N-BK7, N-K5, N-BK10, H-K9L

Fused Silica, diameter less than 125 mm

Silicon, diameter less than 100 mm

Sapphire, diameter less than 30 mm

History of optical domes from CLZ Precision Optics

-In 2018, CLZ Precision Optics has produced diverse optical domes with more than 30 kinds of specifications. The total number of optical domes we’ve manufactured is more than 15,000.

-In the same year, CLZ Precision Optics manufactured high-quality optical domes with a concentricity less than 0.02 mm.

-In 2020, CLZ Precision Optics developed a silicon dome for Pyrgeometers.


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