Electric variable-diaphragm light regulating mechanism

A diaphragm and variable technology, applied in optics, optical components, installation, etc., can solve the problems of low reliability and complex structure of the variable diaphragm dimming mechanism, and achieve convenient maintenance and replacement, convenient installation and removal of the diaphragm , The effect of convenient processing

Pending Publication Date: 2017-05-31
XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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  • Abstract
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  • Application Information

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Problems solved by technology

[0003] In order to solve the technical problems of complex structure and low reliability of the existing i

Method used

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  • Electric variable-diaphragm light regulating mechanism

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Embodiment Construction

[0016] see figure 1 , the present invention provides an electric iris dimmer mechanism, the structure of the preferred embodiment includes a fixed base and a diaphragm 5 arranged coaxially;

[0017] A driven gear 3 is arranged between the rear fixing base 1 and the aperture 5, and the driven gear 3 can rotate freely in the axial direction. The centers of the front fixing base 7, the rear fixing base 1 and the driven gear 3 are all provided with through holes for the light path to pass through. Three pull rod seats 9 are respectively installed on the front fixed seat 7 and the rear fixed seat 1 , and a pull rod 10 is installed between two corresponding tie rod seats 9 . Tighten the lock nuts 8 at both ends of the pull rod 10, and the front holder 7, the rear holder 1, and the aperture 5 can be fixed as one.

[0018] A driving motor 13 is installed on the outer circumference of the rear fixed base 1 , and the output end of the driving motor 13 is connected with a driving gear ...

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Abstract

The invention relates to an electric variable-diaphragm light regulating mechanism mounted on an optical instrument. The electric variable-diaphragm light regulating mechanism comprises a fixed base and a light diaphragm which are arranged coaxially, wherein a driven gear is arranged between the fixed base and the light diaphragm and can axially rotate between the fixed base and the light diaphragm; through holes, which are used for enabling a light path to pass through, are separately formed in the center of the fixed base and the center of the driven gear; a driving motor is mounted on the external circumference of the fixed base, and an output end of the driving motor is connected with a driving gear engaged with the driven gear; a shift lever which is used for regulating a light through aperture is arranged on the external circumference of the light diaphragm; a shifting block is fixedly mounted on the driven gear, and a through hole which is used for fixing the shift lever is formed in the shifting block. The electric variable-diaphragm light regulating mechanism is assembled on the basis of the existing light diaphragm structure, and a commercially available light diaphragm can be directly adopted, so that the processing is convenient, the production cost is low, and the applicable range is wide.

Description

technical field [0001] The invention relates to an electric variable diaphragm light adjustment mechanism installed on an optical instrument. Background technique [0002] In order to control the light energy received on the target surface of the photodetector and ensure that the imaging illumination is suitable, the optical instrument is often equipped with a variable aperture dimming mechanism, and the purpose of dimming is achieved by continuously adjusting the aperture of the aperture. Most of the diaphragm plates and transmission mechanisms in the existing variable diaphragm dimming mechanism are designed and processed by ourselves or remanufactured with standard diaphragms. Usually, the structure is relatively complicated, and the processing cost is high, the cycle is long, and the reliability is low. Contents of the invention [0003] In order to solve the technical problems of complex structure and low reliability of the existing iris light adjustment mechanism, th...

Claims

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Application Information

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IPC IPC(8): G02B7/00G02B5/00
CPCG02B7/00G02B5/005
Inventor 邱鹏彭伟姜凯
Owner XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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