COUPLING METHOD, LENS, HOLDING MECHANISM, CAMERA DEVICE, AND MOVABLE BODY
To prevent a reduction in adhesion and a reduction in waterproofness of a coupling part of a lens and a lens barrel due to a change with time.SOLUTION: A lens 11 has a plane part on an outer peripheral part on an image side to form a coupling surface S with a lens barrel 12b. A lens holding ring 12a...
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Zusammenfassung: | To prevent a reduction in adhesion and a reduction in waterproofness of a coupling part of a lens and a lens barrel due to a change with time.SOLUTION: A lens 11 has a plane part on an outer peripheral part on an image side to form a coupling surface S with a lens barrel 12b. A lens holding ring 12a is screwed with the lens barrel 12b, and thereby the lens 11 is coupled with and held by the lens barrel 12b with an O-ring 13 therebetween. The coupling surface S is applied with an anti-reflection paint 15. At that time, a contact part with the O-ring 13 is subjected to surface treatment for changing the contact characteristics for improving slipping properties during the application of the anti-reflection paint 15, is subsequently applied with the anti-reflection paint 15, and is dried and solidified to prevent a contact of the anti-reflection paint 15 with the O-ring 13.SELECTED DRAWING: Figure 1
【課題】レンズと鏡筒の結合部の、経時変化による密着性の低下および防水性の低下を防止する。【解決手段】レンズ11の外周部の像側は平面部を有し、鏡筒12bとの接合面Sを形成する。レンズ押さえ環12aを鏡筒12bに螺合することにより、レンズ11はOリング13を介して鏡筒12bに保持結合される。接合面Sには反射防止塗料15が塗布される。その際、Oリング13との接触部に、反射防止塗料15の塗布時の滑落性を高めるための接触特性を変化させる表面処理を行った後に反射防止塗料15を塗布し、乾燥、固化させ、反射防止塗料15のOリング13との接触を防ぐ。【選択図】図1 |
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