回転式フィルターターレット

Japanese Patent JP7300328

B2

To provide a rotary filter turret with which it is possible to continuously supply a power source to a filter for electronic variable dimming of light even when the turret body is moved.SOLUTION: A rotary filter turret 21 comprises: an electronic variable ND filter 17 the optical characteristic of which changes in response to a control signal; a turret body 5 that moves around a main shaft D, with the electronic variable ND filter 17 mounted therein; and a signal transmission line for transmitting the control signal outputted from a control circuit 14 which is fixed to the outside to the electronic variable ND filter 17. The signal transmission line includes: a plurality of receive-side electrodes 12, 13 which are formed in the turret body 5 and shaped to follow the movable path of the turret body 5; a plurality of control signal supply units 10, 11 for electrically connecting the control circuit 14 fixed to the outside and the receive-side electrodes 12, 13; and a plurality of control signal receive units 7, 9 for electrically connecting the receive-side electrodes 12, 13 and the electronic variable ND filter 17.SELECTED DRAWING: Figure 1

Hideaki Ariga
Kazunori Miyagawa
Kodai Kikuchi
Takayuki Yamashita
Taishi Iwasaki

JP2019118712A

June 29, 2023

June 26, 2019

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Ikegami Tsushinki Co., Ltd.
Japan Broadcasting Corporation

G03B11/00; G02B7/16

JP1062255U
JP2204729A

WO2012150689A1

Patent Attorney Corporation Isono International Patent and Trademark Office

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