Now showing items 1-8 of 8

    • A placebo-controlled trial of tinted lenses in adolescents with good and poor academic performance: reading accuracy and speed 

      Cardona Torradeflot, Genís; Borràs García, M. Rosa; Peris March, María Elvira; Castañé Farran, Marina (Elsevier, 2010)
      Article
      Open Access
    • Aportación a la recuperación del deslumbramiento de los filtros para la conducción drive&go 

      Talabán Ruano, Noelia (Universitat Politècnica de Catalunya, 2021-02-05)
      Bachelor thesis
      Open Access
      Una buena visión es un aspecto fundamental para tener una conducción segura, es por ello que todo conductor rehúye de cualquier situación de incomodidad visual que se le presente cuando se encuentra al volante. Un fenómeno ...
    • Filtros protectores a la luz solar y la luz azul 

      Cabrero López, Alejandro (Universitat Politècnica de Catalunya, 2020-07-27)
      Bachelor thesis
      Restricted access - author's decision
      En este trabajo investigamos, mediante la búsqueda bibliográfica de artículos científicos, sobre las afecciones que conlleva la exposición del ojo humano a la radiación del sol y de la luz azul. La llegada de los dispositivos ...
    • Mesura de la transmitància espectral de les diverses lents que es comercialitzen amb filtres de llum blava pels usuaris de dispositius digitals 

      Fernandez Valls, Cristina (Universitat Politècnica de Catalunya, 2016-01-28)
      Bachelor thesis
      Open Access
      En la societat actual, cada vegada és més freqüent l’ús de dispositius digitals, tals com les tauletes, els ordinadors o els mòbils. Les pantalles d'aquests aparells sovint presenten una il·luminació pròpia (retro-il·lum ...
    • Meta-mirrors with transverse invariance for beam shaping 

      Cheng, Yu-Chieh; Wang, Pei-Yu; Herrero Simon, Ramon; Botey Cumella, Muriel; Staliunas, Kestutis (International Society for Photo-Optical Instrumentation Engineers (SPIE), 2019)
      Conference report
      Restricted access - publisher's policy
      The paper demonstrates spatial filtering in reflection based on meta-mirrors, composed of periodic subwavelength gratings. The periodic modulation of the refraction index on the sub-micron scale exhibits optical beam shaping ...
    • Spectral radiance of blue light filters on ophthalmic lenses 

      Fernández Valls, Cristina; Argilés Sans, Marc; Pérez Cabré, Elisabet; Cardona Torradeflot, Genís (2017-05-29)
      Article
      Open Access
      As a result of the recent improvement in light-emitting diode (LED) technology, the displays of the vast majority of electronic devices are now illuminated by LEDs. There are several advantages of this type of light source ...
    • Structured Meta-Mirrors for Beam Spatial Filtering 

      Herrero Simon, Ramon; Wang, Pey-Yu; Botey Cumella, Muriel; Cheng, Yu-Chieh; Staliunas, Kestutis (Institute of Electrical and Electronics Engineers (IEEE), 2019)
      Conference report
      Open Access
      The work presents optical spatial filtering in reflection based on translationally invariant meta-mirrors. The meta-structure is generated by a thin grating presenting a transverse modulation of the refraction index on the ...
    • Translationally invariant metamirrors for spatial filtering of light beams 

      Wang, Pei-Yu; Herrero Simon, Ramon; Botey Cumella, Muriel; Cheng, Yu-Chiech; Staliunas, Kestutis (American Physical Society (APS), 2020-07-01)
      Article
      Open Access
      We propose a translationally invariant metamirror for light filtering in reflection. The device consists of athin transverse grating in the micron scale positioned in front of a flat mirror. We analyze the performance ...