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Novel metal structure lens cone

A metal structure and lens barrel technology, applied in installation, optics, instruments, etc., can solve the problems of limited weight reduction and difficulty in improving the fundamental frequency of the structure, and achieve the effects of material saving, small deformation, high dynamic stiffness and strength

Active Publication Date: 2014-02-26
BEIJING RES INST OF SPATIAL MECHANICAL & ELECTRICAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The current metal structure lens barrels mostly adopt the form of directly digging lightening holes and lightening grooves on the structure to reduce weight. The weight loss is limited and the fundamental frequency of the structure is difficult to improve.
The current metal structure lens barrel still needs to be improved in terms of light weight and structural rigidity

Method used

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  • Novel metal structure lens cone
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Such as figure 1 with figure 2 Shown is the structural schematic view of the lens barrel of the present invention viewed from two angles, in which the outer skin and the inner skin are a whole wide skin, respectively, in the structure of the lens barrel of the present invention, image 3 It is a schematic diagram of the internal structure of the lens barrel when the outer skin is not shown in the lens barrel structure of the present invention. It can be seen from the figure that the lens barrel structure includes a primary mirror end flange 1 (1 piece), a secondary mirror end flange 2 (1 piece), an outer Skin 3 (1 piece), inner skin 4 (1 piece), axial support 5 (6 pieces), first support ring 6 (5 pieces). All structural parts of the lens barrel are connected into a whole by screws.

[0038] Lens barrel dimensions φ590mmX730mm. Both the outer skin 3 and the inner skin 4 have a thickness of 0.5 mm, are made of 4J32B, and are formed by thin plate rolls. The materials ...

Embodiment 2

[0043] Such as Figure 4 with Figure 5 In the structure of the lens barrel of the present invention, the outer skin and the inner skin are butt welded skins, and the structure schematic diagrams of the lens barrel of the present invention viewed from two angles respectively, Image 6It is a schematic diagram of the internal structure of the lens barrel of the present invention when the outer skin is not shown in the lens barrel structure of the present invention. It can be seen from the figure that the lens barrel structure includes a primary mirror end flange 1 (1 piece) and a secondary mirror end flange 2 (1 piece) , Outer skin 3 (1 piece), inner skin 4 (1 piece), axial support 5 (6 pieces), first support ring 6 (3 pieces), second support ring 7 (2 pieces). All structural parts of the lens barrel are connected into a whole by screws.

[0044] Lens barrel dimensions φ590mmX730mm. The thickness of the outer skin 3 and the inner skin 4 are both 0.5 mm, and the material is 4...

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Abstract

The invention relates to a novel metal structure lens cone, which consists of a primary lens end flange, a secondary lens end flange, an outer envelope, an inner envelope, an axial support and support rings, wherein the primary lens end flange and the secondary lens end flange are positioned on both sides of the lens cone respectively; the support rings are arranged between the primary lens end flange and the secondary lens end flange at certain intervals; the outer envelope is arranged on the outer wall of the lens core; the inner envelop is arranged on the inner wall of the lens core; the axial support is connected with the primary lens end flange, the support rings and the secondary lens end flange along the axial direction; the outer envelope is fixed on the outer wall of the axial support along two axial edges; and the inner envelope is fixed on the inner wall of the axial support along two axial edges. The lens core has the advantages of relatively high dynamic and static rigidity and intensity, high size stability, simple structure, saving in materials, convenience for installing and detaching and capability of meeting the using requirements of a space environment.

Description

technical field [0001] The invention belongs to the technical field of space remote sensing cameras and relates to a novel metal structure lens barrel. Background technique [0002] The lens barrel of the space camera is an important structural part that supports the optical parts such as the primary mirror and the secondary mirror. The middle part of the lens barrel allows light to pass through. It is a hollow body without a light blocking member in the inner cavity. [0003] The design requirements for the lens barrel are: [0004] a. The space camera is a large precision device, and the rocket launch mechanics environment (including acceleration, vibration, shock, etc.) is very harsh. In order to adapt to this environment, the lens barrel as its main structure must have sufficient dynamic rigidity and strength. [0005] b. Good static stiffness and small deformation under ground test conditions. [0006] c. It has high dimensional stability to ensure that the relative ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B7/00
Inventor 李明罗世魁吴杰
Owner BEIJING RES INST OF SPATIAL MECHANICAL & ELECTRICAL TECH