Design of multisegmented freeform lens for LED fishing/working lamp with high efficiency

Abstract

A novel LED fishing/working light is proposed to enhance the lighting efficiency of a fishing boat. The study is focused on the freeform secondary lens design so as to create a lamp that attracts fish and sheds light on the deck for the crew's work. The experimental results show that the proposed multisegmented freeform lens can deliver the proposed aim, giving 3 times as much illuminating power as the traditional high-intensity discharge fishing lamp does with the same input of electrical power.

Design of a Secondary Freeform Lens of UV LED Mosquito-Trapping Lamp for Enhancing Trapping Efficiency

“…The light refracted by the outgoing surface is governed by Snell's law. The vector equation of Snell's law can be written as follows [9]:…”

RESPONS DAN ADAPTASI IKAN TERI (Stolephorus sp.) TERHADAP LAMPU LIGHT EMITTING DIODE (LED) (Response and Adaptation of Anchovy (Stolephorus sp.) to Light Emitting Diode (LED) Lamp)

“…Lampu LED dapat diproduksi sesuai dengan panjang gelombang dan level energi tertentu sehingga pengunaanya lebih efisien sesuai dengan target tangkapan (Shin et al 2012). Selain itu, lampu LED juga memiliki umur teknis yang lama, dapat menyala pada tegangan rendah serta ramah lingkungan (McHenry et al 2014;Lai et al 2015). Ujicoba penangkapan menggunakan lampu LED pada perikanan skala industri (squid jigging dan pacific saury) mampu meningkatkan hasil tangkapan, menghemat konsumsi BBM, menurunkan emisi CO2 dan meningkatkan potensi keuntungan bersih secara signifikan Matshushita et al 2012;Hua and Xing 2013;Park et al 2015).…”

Bright Green Emitting CaYAlO4:Tb3+,Ce3+ Phosphor: Energy Transfer and 3D‐Printing Artwork

“…Nowadays, light‐emitting diode (LED) lighting has been employed with colors and efficiency in the field of ocean light‐trapping operations since it is energy saving and produces increased catches of aquatic animals, such as fish. [ 35–37 ] To produce 3D printing artwork and design fish‐trapping materials excited by UV light, a phosphor with suitable near‐UV absorption and emission in the visible range is required. Nanoparticles are not conveniently produced in the large quantities necessary for the raw materials of 3D printing because of the complex synthesis processes, whereas the micrometer‐sized traditional display or lighting phosphors easily undergo sedimentation during the mixing process.…”