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.
The last is a passion for gothic music. The subculture is a musically based and driven one; the music is what holds the social scene together. As the music changes, the direction of the scene changes. Music is most often the reason cited for continued involvement in gothic culture over the years.he last is a passion for gothic music. The subculture is a musically based and driven one; the music is what holds the social scene together. As the music changes, the direction of the scene changes. Music is most often the reason cited for continued involvement in gothic culture over the years.