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Valve device for a variable focus lens

A valve device and lens technology, applied in the valve device, valve operation/release device, lens and other directions, can solve the problem of inconvenient connection of the reservoir and the lens to the reservoir, avoid the need for cutting tools or facilities, and increase the simplicity Sexual, easy-to-manipulate effects

Inactive Publication Date: 2011-02-02
ADLENS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, while these mechanisms enable removal of large fluid reservoirs, they still require complex and inconvenient connections between the reservoir and the lens and complicated steps for removing the reservoir

Method used

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  • Valve device for a variable focus lens
  • Valve device for a variable focus lens
  • Valve device for a variable focus lens

Examples

Experimental program
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Effect test

Embodiment Construction

[0053] exist figure 1 In , the circular lens structure is formed from a plastic ring 20 having an integral extension 22 with a hollow bore 24 therein. The rear cover 60 is attached to the rear of the ring 20, the flexible membrane 40 is attached to the front of the ring, and the front cover 50 is attached to the front of the lens structure. A flexible membrane, not shown, is located within the lens structure and allows adjustment of lens power. The position of the membrane can be obtained from Figure 9 see in.

[0054] The outer ring 20 includes holes 1 which open into the ring 20 to allow passage of fluid into the cavity of the lens. The optical power of the lens is adjusted by fluid being sucked into and drawn out of the lens by means of a cup-shaped adjustment member 2 having an internal thread which engages an external thread on a threaded barrel 3 . The regulator 2 and the cartridge 3 together form a reservoir 4 for fluid. A seal is provided between the regulator 2 ...

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Abstract

A valve device for a variable lens comprises: an inlet for receiving fluid from a reservoir,an outlet for passing fluid to a lens cavity,and a valve member, the valve member comprising a passageway for fluid communication between the inlet and outlet and a valve for closing the passageway,wherein the valve is actuated by turning the valve member about an axis of rotation and the passageway extends along the valve member in the axial direction.

Description

technical field [0001] The invention relates to a valve arrangement for a variable focal length lens. Background technique [0002] Variable focus lenses are known, for example as disclosed in WO 96 / 38744 and WO 99 / 47948. They generally comprise a liquid-filled chamber formed on at least one side by a transparent flexible film, such as Mylar. When liquid is added to or removed from the chamber, the flexible membrane deforms and its curvature changes accordingly. This change in curvature results in a change in the optical properties and magnification of the lens. The magnification of the lens can thus be changed by changing the amount of liquid in the chamber. [0003] In WO 96 / 38744 the amount of fluid in the lens is adjusted by inserting a syringe through the bung and using the syringe to add or withdraw fluid. If the lens is to be used in spectacles, the spectacle frame of the lens must allow the lens to be reached by the syringe. This fluid connection makes the glass...

Claims

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Application Information

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IPC IPC(8): G02B3/14G02C7/08
CPCG02C7/085G02B3/14F16K31/524
Inventor 格列戈尔·斯托里威廉姆·约翰逊
Owner ADLENS
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