Apparatus for switching optical low pass filters for use in optical instrument
First Claim
1. An optical filter switching apparatus for switching low pass optical filters for use in an optical instrument for converting externally input image information into video image information and outputting the video image information, wherein the apparatus comprises:
- an optical filter holding section for holding a first optical filter for transmitting at least light of a first wavelength band in the image information and a second optical filter for transmitting light of a second wavelength band in the image information;
an actuator having a rotary solenoid which rotates between a first position for retaining the optical filter holding section at a first optical filter setting position and a second position for retaining the optical filter holding section at a second optical filter setting position, and a rotational power transmission section located between a shaft of the rotary solenoid and the optical filter holding section to transmit the rotational force of the rotary solenoid to the optical filter holding section; and
a microprocessor for controlling the rotary solenoid of the actuator in accordance with at least one of an input signal which is externally input and a power level of the video image information, so that the rotary solenoid is rotated to at least one of the first and second positions.
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Accused Products
Abstract
Disclosed is an optical filter switching apparatus used in an optical instrument for converting externally input image information into video image information and outputting the video image information. The apparatus comprises: an optical filter holding section holding a first optical filter and a second optical filter; an actuator having a rotary solenoid which rotates between a first position and a second position. A rotational power transmission section transmits the rotational force of the rotary solenoid to the optical filter holding section; and a microprocessor controls the rotary solenoid of the actuator in accordance with at least one external input signal and the power level of the video image information. The rotary solenoid is rotated to at least one of the first and second positions. The optical filter switching apparatus directly drives the optical filter holding section using an actuator provided with a rotary solenoid, whereby the optical filter holding section is switched to a first or second optical filter setting position.
34 Citations
14 Claims
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1. An optical filter switching apparatus for switching low pass optical filters for use in an optical instrument for converting externally input image information into video image information and outputting the video image information, wherein the apparatus comprises:
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an optical filter holding section for holding a first optical filter for transmitting at least light of a first wavelength band in the image information and a second optical filter for transmitting light of a second wavelength band in the image information;
an actuator having a rotary solenoid which rotates between a first position for retaining the optical filter holding section at a first optical filter setting position and a second position for retaining the optical filter holding section at a second optical filter setting position, and a rotational power transmission section located between a shaft of the rotary solenoid and the optical filter holding section to transmit the rotational force of the rotary solenoid to the optical filter holding section; and
a microprocessor for controlling the rotary solenoid of the actuator in accordance with at least one of an input signal which is externally input and a power level of the video image information, so that the rotary solenoid is rotated to at least one of the first and second positions. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification