Image Smoothing Generally, the light diffusion of the lens in Jiao Wai is equal, so the light distribution of its virtual image is uniform. In this regard, through the optical element called apodization filter installed near the aperture, the luminous flux in the central part of the lens is more, but it is less as it gets closer to the periphery. Thus, the outline gradually fades, forming an ideal soft virtual image.
2.B2B (also abbreviated as BTB, Business-to-Business) refers to a business model in which enterprises exchange and transmit data and information through private networks or the Internet. It integrates enterprise intranet and enterprise products and services with customers through B2B websites or mobile clients, and provides better services to customers through the rapid response of the network, thus promoting the business development of enterprises.
Extended data:
Development of BTB:
For the development of transactional industrial Internet (B2B), the industry has long defined a trilogy, namely information, transaction and delivery. B2B 1.0 helps enterprises to find business opportunities and realize shipment by displaying information yellow pages on the Internet. B2B2.0 adds platform or self-management to promote transactions. B2B3.0 began to evolve from transaction to delivery, and reached the stage of providing overall solutions.
Dr. Dr.Leo Moo proposed three conditions for moving towards the B2B3.0 model:
First, the platform has mastered the important cornerstone transactions in the industrial chain, or the platform supports the most important type of supply chain to downstream products or services.
Second, the platform makes online transactions digital. This is not an offline transaction, but a "pseudo-dataization" of online data input, but the transaction is automatically online.
Third, the platform has powerful and effective offline terminals, which can provide delivery and follow-up service support. After all, to B transaction is different from to C transaction, which can be carried lightly on the basis of standard products, or needs some assistance (such as installation, processing, special distribution, technical consultation, etc. ).