Overview of gluing of optical parts
The gluing of optical parts is a technical process to link two or more single parts together by means of adhesive or optical glue according to a more skilled demand. The intention is that,
1. Improve image quality
If convex lens of the Mian Brand glass and concave lens of the flint glass are glued together, an achromatic double glued lens is formed.
2. Reduce reflected light energy loss
For detached combination lenses, such as the double detached lens group made of K9 and F2 glass, the light energy loss of the reflecting surface is 4% and 5.6% respectively. Even if magnesium fluoride antireflection film is coated on the surface, 1.5% and 0.6% of the reflected light energy are still lost. If the double detached lens is combined with Canadian glue to form a double glued lens, the reflected light energy loss of the glued surface can be reduced to 0.1%. It can be seen that gluing is one of the useful methods to reduce the light energy loss of the lens group.
3. Processing of simple and messy parts
Some prisms are disorderly in shape, making it difficult to process them all. As shown in Figure 8-1, the upright prism is composed of three right angle prisms. It is difficult to make this kind of disorderly shaped parts with one piece of glass; If the dividend is processed in three pieces and then occluded, it can greatly reduce the difficulty of processing and simplify the production of messy parts. NC milling machine is generally suitable for processing.
4. Maintain scribed surface
In order to maintain the scale appearance, a piece of maintenance glass is often glued on the graduation. The combination methods of learning parts first include resin glue method, light glue method and other methods.
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In fact, it is difficult to solve the problem of whether a three-axis CNC machining center is better or a four-axis machining center is better. There is only a problem that is not suitable for machining some kinds of parts. Basically, all three-axis machining centers can process the parts that can be processed by a four axis machining center, while the parts that can be processed by a four axis machining center may not be processed by a three-axis machining center.
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