Optical element full-aperture coating device and method

Abstract

The invention is suitable for the technical field of optical element coating, and provides an optical element full-aperture coating device and method. The coating device comprises a clamping tool body, clamping assemblies, side panels and at least one jacking assembly. The clamping tool body comprises a base plate and at least two limiting blocks, a containing hole is formed in the base plate, and the limiting blocks are symmetrically arranged on the periphery of the containing hole. The clamping assemblies are arranged in the limiting blocks in a sliding mode. The side panels are arranged on the two sides of the limiting blocks and fixedly connected with the limiting blocks. Ejecting assemblies penetrate through the limiting blocks and abut against the end faces of the clamping assemblies. According to the coating device, the side panels are arranged, and the clamping assemblies are made of polytetrafluoroethylene materials, so that the coating device is high in structural strength, small in clamping stress, free of damage to optical elements, convenient and fast to use, not prone to loosening and falling off and suitable for small and medium-sized optical elements needing full-aperture coating.

Description

technical field [0001] The invention belongs to the technical field of optical element coating, and in particular relates to an optical element full-aperture coating device and a method thereof. Background technique [0002] Coating is to make optical components achieve certain optical effects, such as increasing light transmittance, anti-ultraviolet and reducing glare, ghosting, delaying lens aging and discoloration time, etc., so that a very thin film is coated on the surface of optical components. In order to ensure the quality of the coating, when the optical components are coated, it is necessary to use special fixtures to clamp and position according to the process requirements, so as to ensure that the optical components will not shift or fall when they are coated in the coating machine. On the other hand, the coating effect of optical components is stable and controlled. [0003] In the field of optical element coating, in order to meet the application requirements ...

AI Technical Summary

Problems solved by technology

[0004] (1) Most of the traditional fixtures are made of metal, and the clamping stress is relatively large. The fixture directly clamps the optical element and is easy to cause damage;

[0005] (2) For optical components that require high-temperature heating, the stress caused by the deformation of the clamping device with temperature changes may easily cause extrusion deformation or even bursting of the optical components, or the gap between the clamp and the optical components may be caused by thermal expansion and contraction. Excessively large, resulting in the phenomenon of optical components falling off;

[0006] (3) The limit effect is poor, and it is easy to loosen, resulting in the substandard coating effect of a single optical component or poor consistency of the coating effect of batch components

[0007] In summary, there is an urgent need to improve the existing full-aperture coating device for optical components to avoid damage to the optical components due to excessive clamping stress, and at the same time avoid extrusion deformation or even bursting of the optical components due to clamp deformation or due to The problem that the component falls off due to excessive clearance

Images