Human eye The upper end of the range is given in terms of normal visual performance as 10 cd/m (100,000,000 or one hundred million candelas per square meter). The eye includes a lens similar to lenses found in optical instruments such as cameras and the same physics principles can be applied. The pupil of the human eye is its aperture; the iris is the diaphragm that serves as the aperture stop. Refraction in the cornea causes the effective aperture (the entrance pupil) to differ slightly from the physical pupil diameter. The entrance pupil is typically about 4 mm in diameter, although it
The Flower Kings Stolt's brother Michael on bass and Tomas Bodin on keyboards. The five performed their first gig on 20 August 1994 at an outdoor festival in Uppsala, Stolt's hometown and the city where "The Flower King" was recorded. After they decided to become a full time band, they officially adopted the name The Flower Kings, named after Stolt's album. Stolt had produced a list of potential titles for the record, one of which was "The Flower King", and chose it because of its positive meaning and its reference to the hippie era of the 1960s. After performing a series of concerts