Features

• The internal reflection type paraboloid lens is an optical element that can collect light on the exit *** surface by reflecting light entering from various directions on the streamlined side surface.
• It is ***d as a solar cell concentrator.
• As long as the light is parallel with an incident angle of 25° or less, the light can be efficiently collected at the exit *** surface regardless of the direction of the incident.
• The *** of glass internal reflections simplifies the configuration compared to the lens system.
• By using the press molding technology of glass lenses, both high performance and low cost have been realized.
• * The reflectivity is extremely poor if fingerprints or dirt are attached to the side surface (aspherical surface) beca*** the reflectivity is totally reflected.
• * Reflectivity of the side surface is more than 99%, but reflection loss of about 4% each occurs beca*** the incoming and outgoing surfaces are not coated with anti-reflection coating.
• * Light emitted from the *** surface does not converge to a single point and diverges widely and randomly.
• * For this reason, it cannot be ***d for concentrated beams or collimated beams.