A dome is composed of two parallel optical surfaces. Among optics domes are unique because, unlike any other optical components, the key attribute of the dome is to have no optical effect. Mirrors reflect light, lenses bend light, domes ideally change nothing.
Typically the lead element in an optical system, a dome is often exposed to the environment. Dome lens due to their ability to withstand wind and rain erosion.
Optical domes are lenses with two concentric spherical surfaces. Sometimes they are being referred to as bent plan parallel plates.
Consequently it is customary to define parallelism between two surfaces as the maximum thickness variation between the two surfaces.
In perfect domes the convex radius is equal to the sum of the dome thickness and concave radius.
Slight departures from that rule are sometimes desired.
These protection covers are high quality optical products which are produced through precision polishing.
They ensure clear, distortion free protection for your camera objective or other sensitive equipment.
We provide domes from glass, quartz, depending on the temperature, shock and scratch resistance required.
These items will be manufactured on customer request only.
At ChangChun Long Precision Optics, we specialize in manufacturing glass optical Domes from customer supplied designs.
Capable of creating sizes from 15mm to 102mm in Diameter.
We are among the very few manufacturers in the world who possess this technology.
Diameter 30mm is the normal size dome lens.
There have CLZ-DOME 30-1/2/3/4 in the stock.
For CLZ/DOME/30/1, it is Radius of a convex surface 15mm, Radius of a concave surface 13mm,
Thickness of wall 2mm, height 15mm. It is hemisphere dome lens.
For CLZ/DOME/30/2, it is Radius of a convex surface 15mm, Radius of a concave surface 13mm,
Thickness of wall 2mm, height 16mm. It is 1mm over hemisphere dome lens.
For CLZ/DOME/30/3, it is Radius of a convex surface 15mm, Radius of a concave surface 11mm,
Thickness of wall 4mm, height 12mm. It is hemisphere dome lens.
For CLZ/DOME/30/4, it is Radius of a convex surface 15mm, Radius of a concave surface 11mm,
Thickness of wall 4mm, height 16mm. It is 1mm over hemisphere dome lens.
The material of these dome in the stock are made of glass H-K9L from CDGM or N/BK7 from SCHOTT.
We can manufacturing other type glass and size dome lens according to customer designes.