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Master's Dissertation
DOI
10.11606/D.88.2002.tde-20102010-100921
Document
Author
Full name
Aparecido Rodrigues da Silva
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
São Carlos, 2002
Supervisor
Committee
Marega Junior, Euclydes (President)
Catunda, Tomaz
Yasuoka, Fatima Maria Mitsue
Title in Portuguese
Confecção e caracterização óptica e estrutural de lentes plásticas obtidas pelo processo de injeção
Keywords in Portuguese
Acrílico
Caracterização óptica
Ensino de óptica
Injeção termoplástica
Lentes plásticas
Moldes de injeção
Abstract in Portuguese
O propósito desse trabalho foi o de produzir lentes biconvexas pelo processo de injeção para serem utilizadas no ensino de óptica geométrica e de ciências nos níveis fundamental e médio. A importância de tal trabalho se justifica na carência de material experimental didático produzido no mercado nacional. Para atingir os objetivos propostos, foi necessário estudar o processo de injeção de termoplásticos e adequá-lo à produção de um componente óptico. No desenvolvimento do trabalho, foi projetado e confeccionado um molde para injeção das lentes, segundo especificações técnicas e apoiado em resultados obtidos através de simulações numéricas. Após a realização de testes de injeção, seguiu-se a caracterização das lentes obtidas através de parâmetros ópticos: transparência, birrefrigência, índice de refração, distância focal, raio de curvatura e FTM
Title in English
Production and characterization optic and estructural of plastic lens made by injection process
Keywords in English
Acrylic
Injection moulds
Optic characterization
Optic teaching
Plastic lens
Thermoplastic injection
Abstract in English
The purpose of this work was the development and production of acrylic biconvex lens by injection process to be used in optical and science teaching at elementary and high schools. The importance of such work is based in the deficiency of experimental didactic material made in Brazil. In order to achieve the intended objective it was necessary to study the thermoplastic injection process and adapt it to the fabrication of an optical element. During the development of the work a mold was designed and constructed in according to technical specifications and based on results of numerical simulations. After the injection tests the lens were characterized by theirs optical parameters: transparency, birefringence, refraction index, focal distance, curvature radius and MFT
 
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Publishing Date
2010-10-27
 
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