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Double-prism light-shift magnifier

A technology of displacement amplification and light displacement, which is applied in the optical field, can solve the problems of gearbox backlash, difficulty in strict synchronization, and difficulty, and achieve the effects of improving reliability, reducing motion noise, and eliminating synchronization errors

Inactive Publication Date: 2013-10-02
XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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  • Abstract
  • Description
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Problems solved by technology

These two methods are very difficult to realize in the process of high-speed reciprocating slice scanning, and the former gearbox has problems such as backlash and large noise, while the latter has different loads during reciprocating motion. It is difficult to ensure that the two are strictly synchronized

Method used

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Embodiment Construction

[0020] see figure 2 , the invention provides a double prism light displacement amplifier, the double prism light displacement amplifier comprises a pentagonal prism 1 and a displacement magnifying prism 2; the incident light incident to the pentagonal prism 1 is emitted after passing through the pentagonal prism 1 and forms the first outgoing light; The magnifying glass is arranged on the outgoing light path of the first outgoing light; the first outgoing light is emitted through the displacement magnifying prism 2 to form the second outgoing light; the angle between the first outgoing light and the incident light is 90 degrees.

[0021] see figure 2 as well as image 3 , the cross-section of the displacement magnifying prism 2 is trapezoidal; the displacement magnifying prism 2 that the cross-section is trapezoidal comprises a trapezoidal top surface, a trapezoidal trapezoidal bottom surface 23 and the first refraction surface 21 and the second refraction surface 22 that c...

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Abstract

The invention relates to a double-prism light-shift magnifier. The double-prism light-shift magnifier comprises a pentagonal prism and a shift magnifying prism; incident light incoming to the pentagonal prism is emitted after passing though the pentagonal prism to form a first emergent light; the shift magnifying prism is arranged on the emergent path of the first emergent light; the first emergent light is emitted after passing though the shift magnifying prism to form a second emergent light. The double-prism light-shift magnifier provided by the invention can eliminate synchronization errors and simplify a motion mechanism, and is high in reliability.

Description

technical field [0001] The invention belongs to the field of optics, and relates to an optical displacement amplifier, in particular to a double prism optical displacement amplifier used in underwater ship bubble wake detection. Background technique [0002] The bubble wake is a turbulent flow field containing a large number of bubbles formed by the boundary layer rotation and propeller agitation when the ship is sailing. The microbubbles in it can survive in water for a long time. Therefore, the detection of bubble wake has important research significance. However, at present, most of the related research in China only stays in the stage of research and laboratory verification of related theories. The optical detection of underwater wakes is full of difficulties: the detection light is seriously attenuated underwater, and the propagation distance is short; the scattered light in the water is strong, submerging the signal light of the bubbles to be detected, and the image c...

Claims

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Application Information

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IPC IPC(8): G02B26/12G02B5/04
Inventor 闫亚东何俊华达争尚白秋菊董晓娜陈良益
Owner XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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