Provided are: a long optical laminate prepared by laminating two obliquely
stretched long phase-difference films so that the respective
delayed-phase axes cross each other at a specified angle, while at least
one of the two phase-difference films is a film containing residual
volatile component by 1000 ppm or less; a long optical element prepared
by laminating the optical laminate on one surface of polarization film; a
long broad-band 1/4 wavelength plate; an optical member prepared by
laminating a circularly polarized light separating layer of cholesteric
liquid crystal on one surface of the broad-band 1/4 wavelength plate; a
broad-band circular element using the broad-band 1/4 wavelength plate;
and an optical product having the broad-band circular polarization
element. The invention provides long optical laminates having high
optical characteristics stability, long broad-band 1/4 wavelength plates,
long optical elements, broad-band circular polarization elements, and
various optical products having the broad-band circular polarization
element.