Patent ID: 7804057

Claim:
An optical substance manipulator capable of manipulating microscopic particles dispersed in a flowing fluid by means of light pressure, characterized by comprising an optical system that forms two linear light-collective areas simultaneously with respect to a fluid that flows on a subject surface, and further comprising, in optical paths forming the respective linear light-collective areas, means adapted to adjust directions of the linear light-collective areas on the subject surface, means adapted to adjust positions of the linear light-collective areas, said optical system comprises light splitter means adapted to split light coming out of one light source into two beams, each beam having a separate optical path, means adapted to independently adjust each beam for controlling the direction of each of the linear light-collective areas, means adapted to independently adjust each beam for controlling the position of each of the linear light-collective areas, light synthesis means adapted to synthesize the light split into two beams, and an object lens adapted to collect the synthesized light to form the two linear light-collective areas simultaneously on a subject surface, wherein each linear light-collective area is a light beam having a linear profile as viewed on the subject surface.