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A jig for testing the defocusing of the conversion angle of the electric zoom lens and its application method

A technology of electric zoom lens and angle conversion, which is used in optical instrument testing, optical performance testing, and testing of machine/structural components.

Active Publication Date: 2019-07-26
FUJIAN FORECAM OPTICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In these applications, whether the electric zoom lens can still maintain a clear picture under the condition of arbitrarily changing the shooting angle has also become a necessary lens assessment. In the lens test assessment, there is no jig that drives the lens to rotate.

Method used

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  • A jig for testing the defocusing of the conversion angle of the electric zoom lens and its application method
  • A jig for testing the defocusing of the conversion angle of the electric zoom lens and its application method
  • A jig for testing the defocusing of the conversion angle of the electric zoom lens and its application method

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Experimental program
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Embodiment Construction

[0016] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0017] Such as Figure 1~4 As shown, a jig for testing the conversion angle defocusing of an electric zoom lens includes a support frame 1, an L-shaped rotating frame body 2 is hinged on the support frame, and the bottom of the rotating frame body slides horizontally with a The lower sliding seat 3, the top of the rotating frame body vertically slides with an L-shaped lifting frame body 4, and the top of the lifting frame body slides horizontally with an upper sliding seat 5, and the upper sliding seat An upper positioning hole 7 for passing through the collimator 6 is provided, and a lower positioning hole 9 for placing a lens 8 is provided on the lower sliding seat.

[0018] In this embodiment, the collimator facilitates the correction of the optical axis of the instrument and ensures the accuracy of the test. By replacing the reticle in the...

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Abstract

The present invention relates to a tool for testing conversion angle focus deflection of a motorized zoom lens. The tool comprises a support frame, the support frame is hinged with a L-shaped rotatingrack body, the bottom portion of the rotating rack body is in cross sliding fit with a lower slipping seat, the top portion of the rotating rack body is in vertical sliding fit with a L-shaped lifting rack body, the top portion of the lifting rack body is in cross sliding fit with an upper slipping seat, the upper slipping seat is provided with an upper location hole configured to allow a collimator to be passed through, and the lower slipping seat is provided with a lower location hole configured to arrange a lens. The structure is simple.

Description

technical field [0001] The invention relates to a jig for testing the defocusing of the conversion angle of an electric zoom lens and a use method thereof. Background technique [0002] With the rapid development of video surveillance, security monitoring systems have increasingly high requirements for surveillance image clarity. In order to achieve excellent imaging quality, the requirements for the lens itself are getting higher and higher. After the zoom lens is cleared, due to its own limitations, there is no locking nail to fix the position of the current zoom group and the focus group. If the lens changes in posture, it may cause displacement changes in the front and rear groups, which will affect the imaging quality; and This type of lens is generally used in outdoor long-distance scenes, such as urban security, high-altitude viewing, highways, railways, rivers, maritime, border defense, forest fire prevention and other projects. In these applications, whether the mo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M11/02
CPCG01M11/0214
Inventor 林梅吴文龙陈恩斌黄健欣
Owner FUJIAN FORECAM OPTICS CO LTD