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ADD:No.242 Beihai Street, Dadong District, Shenyang City, Liaoning Province

TLL:024-88722463(Filter)

  024-88710226(Reflector) 

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EMAIL:info@hb-optical.com

Adjustable optical attenuator

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Adjustable optical attenuator

Thevariable-densitysheetwhoseopticaldensitychangescontinuouslyisusedasthelightattenuationelement.Therotationofthemotorormechanicaladjustmentofthevariable-densitysheetchangesthetransmissionpositionofthelasertoachievetheattenuationofluminousflux.Theattenuationofthevariabledensityfilmchangeslinearlywithangleorposition.Asteppermotorplusprogramcontrolcanbeusedtoobtaintheattenuation.Ifmechanicaladjustmentisused,amoreaccurateattenuationcanalsobeobtained.
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The variable-density sheet whose optical density changes continuously is used as the light attenuation element. The rotation of the motor or mechanical adjustment of the variable-density sheet changes the transmission position of the laser to achieve the attenuation of luminous flux. The attenuation of the variable density film changes linearly with angle or position. A stepper motor plus program control can be used to obtain the attenuation. If mechanical adjustment is used, a more accurate attenuation can also be obtained.
 
 
 
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Combination of circular variable density sheet and circular step density sheet:
Suitable for desktop adjustable optical attenuator. The step density plate is used for attenuation gear adjustment, and the circular linear density plate is used for continuous fine adjustment of the gear interval. The whole combination can obtain 0-65dB attenuation.
 
 
Strip deformation density film:
Suitable for desktop adjustable optical attenuator. A precise linear motion mechanism is used to adjust the position of the density plate to obtain the required attenuation. The linearity of the attenuation of the variable density film with position changes is better than 5%, and it changes monotonously. The stepping motor is controlled by a program to obtain the attenuation.
 
 
Small variable density film:
Continuously variable density film with small size (bar: 10x3, round: Φ20) is suitable for small hand-adjustable optical attenuators. Because the size of the variable density plate is small and the optical density changes linearly, the mechanical structure of the optical attenuator does not need to be too complicated. With a proper scale, a more accurate attenuation can be obtained.
 
 
 
Mainly used in desktop adjustable optical attenuators, small hand-adjustable optical attenuators, etc.