The Yarmouth County Museum and Archives, owned by the Yarmouth County Historical Society stands on Mi’kma’ki (Mi’kmaq Territory) and supports culture, education, and arts on this land. We strive for meaningful partnerships with all the peoples of this province as we continue to live and work here. Through the Peace and Friendship Treaties, which the Mi’kmaq, Wolastoqiyik (Maliseet), and Passamaquoddy Peoples first signed with the British Crown in 1725-1726, there was no surrender of lands nor resources. Agreements within these Treaties outline a path for the ongoing relationship between Nations in mutual respect.

Fresnel Lensprice

1. Signal transmission of sensors; 2. High speed data transmission; 3. Industrial control data links; 4. Military communication; 5. Proprietary LANs or Access Network; 6. Multi-media data link and plant control in vehicles and airplanes;

The lens was built in Paris and cost $38,000 CDN. It weighs approximately 3,300 pounds and has 360 prisms. The lens floated in a vat of mercury and was rotated by weights, similar to a grandfather clock. Every night the lighthouse keeper and his assistant made three trips each up a series of narrow stairways to the top of the light to wind up the weights.

How does aFresnel lenswork

Fresnel LensSheet

Basic properties: Fiber Core Material: PMMA Cladding Material: Fluorinated Polymer Jacketing Material: Black PE or PVC Optical Instruction: Step Index Model Numerical Aperture: 0.5 Allowable Bend Radius: No less than ten times of optical fiber diameter Core Refractive Index: 1.492

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The first lighthouse in Yarmouth was erected in 1839. The lens that is now on display at the museum was installed in 1908. This new lens was a sophisticated improvement over the original. The "Fresnel" lens was named after its inventor, Augustin-Jean Fresnel (1788-1827), a French physicist and engineer. He devised a method of producing circularly polarized light and replaced mirrors with compound lenses in lighthouses.

1. Attenuation: 0.15dB/m@525nm; 2. Theoretic bandwidth of 10~20MHz. 50m(Numerical aperture 0.5), 100~200MHz. 50m(Numerical aperture 0.3); 3. Diameter allowance ± 3% in actual production; 4. Working temperature: --20~70 Celsius Degrees; 5. Jacketing material: PE

This simplex pof cable is also called Plastic Optical Fiber Cable,Polyethylene Jacketed Optical Fiber Cable,polymer optical fiber cable, plastic fiber optic cable, which is mainly used for short distance data transmission.

A new modern structure replaced the 122-year-old lighthouse in 1962 and a new light was installed to replace the Fresnel lens. Today, the Cape Forchu light station is a tourist attraction, accessible by road along a scenic route that offers views of both Yarmouth Harbour and the ocean.

Some of the applications of the simplex POF cable include signal transmission of sensors, high speed data transmission, industrial control data links, military communication, proprietary LANs or access network, and multi-media data link and plant control in vehicles and airplanes.

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