On Producing Colours Using Birefringence Property of Transparent, Colourless Stretched Cellophane
نویسندگان
چکیده
The authors discuss the birefringence property of transparent, colourless stretched cellophane and describe the colours produced when one or more layers of such cellophane is sandwiched between a pair of polarisers. The parameters that can be altered in order to vary the colours are explained, and a convenient method is suggested for viewing the range of colours produced.
منابع مشابه
Anisotropic Alteration of Scleral Birefringence to Uniaxial Mechanical Strain
PURPOSE To investigate the relationship between scleral mechanical properties, its birefringence, and the anisotropy of birefringence alteration in respect of the direction of the strain by using PS-OCT. METHODS The scleral birefringence of thirty-nine porcine eyes was measured with a prototype PS-OCT. A rectangle strip of sclera with a width of 4 mm was dissected at the temporal region 5 mm ...
متن کاملThe E ect of Processing Parameters on Glass Fiber Birefringence Development and Relaxation
Birefringence of oxide glass bers drawn from glass melts through an ori ce has been detected previously [1, 2]. This birefringence is a measure of anisotropy in glass structure that can in uence ber performance properties. Birefringence is produced during ber drawing as the ber is rapidly stretched in the viscoelastic glass transition range. The birefringence is \frozen" into the glass during r...
متن کاملThe effect of processing parameters on glass fiber birefringence development and relaxation
Birefringence of oxide glass fibers drawn from glass melts through an orifice has been detected previously [H. Stockhorst, R. BruÈckner, J. Non-Cryst. Solids 49 (1982) 471; H. Stockhorst, R. BruÈckner, J. Non-Cryst. Solids, 86 (1985) 105.] This birefringence is a measure of anisotropy in glass structure that can influence fiber performance properties. Birefringence is produced during fiber draw...
متن کاملStrain-Dependent Birefringence Of Elastic Polymers
The optical parameters (refractive index, absorption coefficient) of opaque dielectric materials can be measured with terahertz (THz) Time-Domain spectroscopy (TDS). By using a THz beam of known polarization and measuring both components of the transmitted THz field, it is possible to determine the birefringence present in an anisotropic material. In this work we used polarization sensitive (PS...
متن کاملOnline Investigation of Optical Properties and Craze Propagation of Drawn Polypropylene Fiber by Using Interferometric Image Analysis
Pluta polarizing interference microscope was used to follow the crazing that occur on the surface of stretched polypropylene fibres at different drawing conditions. The samples were stretched until crazing initiated, and then craze propagation was monitored as a function of drawing speed and test temperature. The effect of craze dimension on their propagation velocity was taken into account. Th...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2007