Generalization of the Jared-Ennis method to complex transmitance objects for the generation of Synthetic Discriminant Functions

We present a simple method of constructing synthetic discriminant function filters optimized to take into account the modulation of liquid-crystal devices. This relaxation algorithm, a generalization of the Jared and Ennis method, is an iterative method that includes arbitrary modulations for both scene and filter, extending the problem to the complex plane. Simulated and experimental results obtained in a VanderLugt correlator are presented for a two-class recognition problem. The optimal number of images needed to describe an object in a filter generated in this way is discussed, and the influence of the spatial light modulation resolution on the correlation is studie

Full complex Fresnel holograms displayed on liquid cristal devices

We propose an implementation to display full complex information using two ferroelectric liquid crystals spatial light modulators. We compare the simulated and experimental results obtained

On-line applet-based optics course for undergraduate students

We present an educational resource based in a virtual optical laboratory for undergraduate students. It consists in a web-based textbook with several applets to illustrate the theory and simplify the teaching tasks in the classroom. These programs can also be used as a method for self-learning in an on-line environment. Applets are written in Java language using the Java Network Launching Protocol (JNPL) for avoiding problems related with the use of specific browsers or Java interpreters versions

Generalization of the Jared and Ennis method of complex transmittance objects for the generation of synthetic discriminant function filters

We present a simple method of constructing synthetic discriminant function filters optimized to take into account the modulation of liquid-crystal devices. This relaxation algorithm, a generalization of the Jared and Ennis method, is an iterative method that includes arbitrary modulations for both scene and filter, extending the problem to the complex plane. Simulated and experimental results obtained in a VanderLugt correlator are presented for a two-class recognition problem. The optimal number of images needed to describe an object in a filter generated in this way is discussed, and the influence of the spatial light modulation resolution on the correlation is studied

Design strategies for optimizing holographic optical tweezers set-ups

We provide a detailed account of the construction of a system of holographic optical tweezers. While a lot of information is available on the design, alignment and calibration of other optical trapping configurations, those based on holography are relatively poorly described. Inclusion of a spatial light modulator in the set-up gives rise to particular design trade-offs and constraints, and the system benefits from specific optimization strategies, which we discuss

Full complex Fresnel holograms displayed on liquid cristal devices

We propose an implementation to display full complex information using two ferroelectric liquid crystals spatial light modulators. We compare the simulated and experimental results obtained

Prevención de drogodependencias : actividades

Contiene 4 volúmenes: preescolar, ciclo inicial, ciclo medio y ciclo superior de la EGBSe presentan aquí actividades de prevención de drogodependencias, incluídas en los curriculums escolares, realizadas por l@s profesor@s que han participado en los cursos de formación organizados en colaboración con los Centros de Profesores, el Equipo Provincial de Educación Compensatoria y los Servicios de Apoyo Escolar de Almeria. El objetivo es ofrecer la experiencia de cómo han ido introduciendo la prevención de drogodependencias (inespecífica y específica) en el curriculum en preescolar y primaria. Las actividades que se presentan siguen esta estructura: título, nivel y área, características socioculturales, objetivos, metodología, recursos, temporalización y evaluación.AndalucíaBiblioteca de Educación del Ministerio de Educación, Cultura y Deporte; Calle San Agustín 5 -3 Planta; 28014 Madrid; Tel. +34917748000; [email protected]

On-line applet-based optics course for undergraduate students

We present an educational resource based in a virtual optical laboratory for undergraduate students. It consists in a web-based textbook with several applets to illustrate the theory and simplify the teaching tasks in the classroom. These programs can also be used as a method for self-learning in an on-line environment. Applets are written in Java language using the Java Network Launching Protocol (JNPL) for avoiding problems related with the use of specific browsers or Java interpreters versions

Applet de model de l'ull

Pertany a JOptics, un conjunt de recursos docents dirigits a l'aprenentatge de l'òptica física en l'àmbit universitari en el marc dels ensenyaments de Física o la titulació en Òptica i Optometria. http://www.ub.edu/javaoptics/index-ca.htmlPodeu consultar la versió en castellà a: http://hdl.handle.net/2445/14382 ; i en anglès a: http://hdl.handle.net/2445/14622Aplicació que simula la formació d'imatges a l'ull humà

Applet de interferómetro de Michelson

Pertenece a JOptics, un conjunto de recursos docentes dirigidos al aprendizaje de la Óptica Física a nivel universitario en el marco de la licenciatura de Física o la titulación en Óptica y Optometría. http://www.ub.edu/javaoptics/index-es.htmlPodeu consultar la versió en català a: http://hdl.handle.net/2445/14327 ; i en anglès a: http://hdl.handle.net/2445/14602Esta aplicación permite estudiar el interferómetro de Michelson y ver la evolución de los anillos cuando se varían los parámetros del sistema. También se analiza el caso de fuente puntual, correspondiente al interferómetro de Twyman