Light attenuator and process for fabrication thereof

Details Light attenuator and process for fabrication thereof Light attenuator and process for fabrication thereof

G - Physics

02

B

26/197, 88/97.7

G02B 6/26 (2006.01) G02B 6/38 (2006.01) G02B 6/42 (2006.01)

Patent

CA 1330729

LIGHT ATTENUATOR AND PROCESS FOR FABRICATION THEREOF ABSTRACT OF THE DISCLOSURE Disclosed is a light attenuator comprising a stick or rod composed of a light-transmitting material, and a light-attenuating layer composed of a thermoplastic resin and formed on at least one end face of the stick or rod, wherein finely divided particles having a light-absorbing or light-scattering property are uniformly incorporated in the thermoplastic resin. This light attenuator is made by forming a light-attenuating thermoplastic resin layer having incorporated therein the light-absorbing or light scattering finely divided particles on a release film or paper; placing the light-attenuating layer formed on the release film of paper on a heating plate; press-bonding the end face of a rod or stick composed of a light-transmitting material inserted and set in a ferrule to the surface of the release film or paper; cooling the bonded assembly; and then peeling the release film or paper to transfer the light-attenuating layer to the end face of the light-transmitting rod or stick.

598003

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