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Zoom Pinhole Lenses

Photonics.com
Nov 2012
Marshall Electronics, Optical SystemsRequest Info
 
EL SEGUNDO, Calif., Nov. 25, 2012 — Marshall Electronics’ Optical Systems Div. has released two 323-mm zoom pinhole lenses to monitor hot environments from a greater distance to protect cameras from heat-related damage. The V-ZPL-HITEMP-A-323 has a 1.2-mm pinhole diameter, and the V-ZPL-HITEMP-B-323, a 3.8-mm pinhole diameter.

They are suitable for industrial applications where an observation window is structurally recessed. They can be positioned at the window, where the temperature is the hottest, and the camera can be located at a distance of 323 mm, allowing space for camera cooling equipment.

Both lenses feature stainless steel housing for durability in harsh environments, such as kilns, industrial furnaces, incinerators and manufacturing plants. They withstand corrosion and high temperatures.

The V-ZPL-HITEMP-A-323 has quartz front elements. The V-ZPL-HITEMP-B-323 has a sapphire front first element and a quartz second element. Sapphire and quartz optical elements offer hardness and permit short-term lens operation at temperatures reaching 1000 °C for up to 10 min. The two zoom lenses feature a 3.6- to 18-mm focal length and a CS lens mount.


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