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Coaxial reversal annular continuous variable density attenuator device and working method thereof

A variable density and attenuator technology, applied in the field of optical engineering, can solve the problem of sacrificing the resolution of imaging units, and achieve the effects of small footprint, simple manufacturing process, and high degree of integration

Pending Publication Date: 2021-12-10
INST OF APPLIED ELECTRONICS CHINA ACAD OF ENG PHYSICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The attenuation of the aperture mode is directly effective, but to a certain extent, the resolution capability of the imaging unit is sacrificed

Method used

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  • Coaxial reversal annular continuous variable density attenuator device and working method thereof
  • Coaxial reversal annular continuous variable density attenuator device and working method thereof
  • Coaxial reversal annular continuous variable density attenuator device and working method thereof

Examples

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Embodiment

[0028] like figure 1 , figure 2 , image 3 As shown, this embodiment proposes a coaxial reverse ring type continuously variable density attenuator device, including a base 10, a motor 20, an output gear 30, a gear plate 41, a gear plate 2 42, an attenuation sheet 51 and an attenuation Sheet two 52; the first attenuation sheet 51 and the second attenuation sheet 52 are annular;

[0029] The gear plate one 41 and the gear plate two 42 all have a toothed plate and a rotating shaft connected to each other, and the gear plate one 41 also has a shaft hole passing through its toothed plate and the rotating shaft; The shaft hole is free to rotate; the rotating shaft of the gear plate 2 42 passes through the shaft hole of the gear plate 1 41 and can rotate freely;

[0030] The rotating shafts of the first gear plate 41 and the second gear plate 42 on one side of the base 10 are fixedly connected with the first damper 51 and the second 52 of the damper; The toothed discs of disc tw...

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Abstract

The invention provides a coaxial reverse annular continuous variable density attenuator device and a working method thereof. The coaxial reverse annular continuous variable density attenuator device comprises a base, a motor, an output gear, a first gear disc, a second gear disc, a first attenuation piece and a second attenuation piece. The first attenuation piece and the second attenuation piece are in a circular ring shape. The first gear disc and the second gear disc are each provided with a fluted disc and a rotating shaft. The first gear disc is further provided with a shaft hole penetrating through the fluted disc and the rotating shaft. The rotating shaft of the first gear disc penetrates through a shaft hole in the base and can rotate freely. The rotating shaft of the second gear disc penetrates through the shaft hole of the first gear disc and can rotate freely. The rotating shafts of the first gear disc and the second gear disc are fixedly connected with the first attenuation piece and the second attenuation piece respectively. The fluted discs of the first gear disc and the second gear disc are mounted on the two sides of the output gear, and the tooth surfaces of the fluted discs are meshed with the tooth surface of the output gear. The axis of the output gear is fixedly connected with a rotating shaft of the motor. The motor is fixed on the base. No extra rotational inertia is introduced in the attenuation process, and the device has the advantages of high reliability, low cost, high integration degree and the like.

Description

technical field [0001] The invention relates to the technical field of optical engineering, in particular to a coaxial inverted ring type continuously variable density attenuator device and a working method thereof. Background technique [0002] In recent years, the optoelectronic system characterized by laser has developed vigorously, and various devices, equipment, and systems derived from it have emerged in an endless stream. While driving the rapid development of related photoelectric detection systems, it is also the photoelectric system in the scene of large dynamic range brightness changes of the target to be measured. The adaptability of the detection system puts forward higher requirements. There are mainly two ways to adjust the light flux of traditional photoelectric detection: aperture and attenuation. The attenuation of the aperture mode is directly effective, but to a certain extent, the resolution capability of the imaging unit is sacrificed. Using a pair of...

Claims

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Application Information

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IPC IPC(8): G02B7/00
CPCG02B7/00
Inventor 王锋石岩邹凯黄祖鑫张永红李源杨钧兰尚武云
Owner INST OF APPLIED ELECTRONICS CHINA ACAD OF ENG PHYSICS
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