1 Base curve: a simple spherical curve; the primary lens curve. 2  Lens blank: basic spherical lens; the lab grinds the back of the blank to match the prescription.  Optical center: a spot on a spherical lens where light enters at a 90-degree angle to the lens plane.
In short, a subculture is a group detaching itself from mainstream society, catering to certain people's ideologies and preferences. The punk movement is an excellent example of the rise and fall of a subculture.A subculture is a group of people with different ideologies and usually fashion and music tastes then that of the larger culture they are a part of. Many subcultures also detest the mainstream and commercialization.n short, a subculture is a group detaching itself from mainstream society, catering to certain people's ideologies and preferences. The punk movement is an excellent example of the rise and fall of a subculture.
However, there could be subcultures and countercultures within a mainstream culture. Subcultures share the main values of the mainstream culture, but they have their own characteristics which differentiate the subculture group from the rest. When we consider both counterculture and subculture, the main difference we see is that the counterculture goes against the mainstream culture whereas subculture shares the values of the main culture while adapting their own identities.