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Lid and optical element package

A technology of optical components and packages, applied in the direction of optical components, optical components, electrical components, etc.

Inactive Publication Date: 2017-12-05
THE FUJIKURA CABLE WORKS LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Even if the frame plate 131 and the window plate 132 are made of materials with similar linear expansion coefficients such as Kovar alloy (Kovar alloy) and Kovar glass, the warpage of the window plate 132 produced in this way will affect the performance of the optical element package 100. have an impact that cannot be ignored

Method used

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  • Lid and optical element package
  • Lid and optical element package
  • Lid and optical element package

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Experimental program
Comparison scheme
Effect test

no. 1 approach

[0020] refer to figure 1 as well as figure 2 The cover body 1 according to the first embodiment of the present invention will be described. figure 1 It is an exploded perspective view of the cover body 1 . figure 2 is a cross-sectional view of the cover body 1 .

[0021] The cover body 1 has a window panel 11 and a frame plate, and the frame plate is divided into a lower frame plate 12 (corresponding to the "first part" in the claims) and an upper frame plate 13 (corresponding to the "second part" in the claims). Two parts"). In the cover body 1 , the window panel 11 is clamped by the lower frame plate 12 and the upper frame plate 13 .

[0022] The window plate 11 is a plate-like member that transmits light. In this embodiment, a planar-view rectangular plate-shaped member made of Kovar glass is used as the window plate 11 .

[0023] The lower frame plate 12 is a plate-shaped member that supports the window panel 11 from the lower surface side. In the present embodi...

no. 2 approach

[0043] refer to Figure 4 and Figure 5 The lid body 2 of the second embodiment of the present invention will be described. Figure 4 It is an exploded perspective view of the cover body 2 . Figure 5 is a sectional view of the cover body 2 .

[0044] The cover body 2 includes a window panel 21 and a frame plate, and the frame plate is divided into a base portion 22 (corresponding to a “first component” in the claims) and a cover portion 23 (corresponding to a “second component” in the claims). ). In the cover body 2 , the window plate 21 is placed on the base portion 22 and covered by the cover portion 23 .

[0045] The window plate 21 is a plate-like member that transmits light. In the present embodiment, a plate-like member made of Kovar glass and having a rectangular planar shape is used as the window plate 21 .

[0046] The base portion 22 is a plate-shaped member that supports the window panel 21 from the lower surface side. In the present embodiment, a plate-shap...

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PUM

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Abstract

The present invention achieves a lid in which warp does not easily occur in a window plate during cooling. In the lid (1), a frame plate is divided into a lower frame plate (12) and an upper frame plate (13) and an outer peripheral section of a lower surface of a window plate (11) is joined to the lower frame plate (12) and an outer peripheral section of an upper surface of the window plate (11) is joined to the upper frame plate (13).

Description

technical field [0001] The present invention relates to a cover that closes a frame housing an optical element. It also relates to an optical element package including an optical element, a housing for accommodating the optical element, and a cover for closing the housing. Background technique [0002] Optical elements such as LCOS (Liquid crystalon silicon: silicon crystal) are widely used. These optical elements are used in a hermetically sealed state so that their characteristics are not affected by the influence of humidity. The hermetic sealing of the optical element is realized by a frame housing the optical element and a cover closing the frame. [0003] Figure 6 It is an exploded perspective view of a typical conventional optical element package 100 . Such as Figure 6 As shown, the optical element package 100 includes an optical element 110 , a frame body 120 accommodating the optical element 110 , and a cover body 130 closing the frame body 120 . Figure 7 It ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B7/00G02B7/182H01L23/02
CPCG02B7/00G02F1/133308G02B7/008G02F1/136277G02F1/133311H01L23/02B65D1/02B65D1/42G02F1/1333H01L23/08
Inventor 淡路大辅
Owner THE FUJIKURA CABLE WORKS LTD