695nm Longpass Filter for IPL Hair Removal

695nm Longpass Filter for IPL Hair Removal The 695 nm long pass optical beauty filter for IPL (LP695) effectively blocks wavelengths below 695 nm while transmitting red to near-infrared (NIR) light, thereby enabling deeper penetration into the dermis.  This spectral profile is consistent with the principle of selective photothermolysis, which makes the filter particularly suitable for applications such as hair removal and deep tissue rejuvenation.  Compared to filters with shorter cutoff wavelengths, LP695 minimizes melanin absorption in the epidermis while efficiently delivering energy to anagen-phase hair follicles located at depths of approximately 2–5 mm.  When used in conjunction with effective epidermal cooling and multi-pulse delivery, this configuration facilitates sustained hair reduction.  Common handpiece insert dimensions include 15×35×2 mm, 8×15×2 mm, and Ø6 mm.  To ensure spectral purity, it is recommended to incorporate an additional UV/IR cut filter;  for improved spot…