HIGH-SPEED PLANOCHROMATIC MICROLENS OF MEDIUM MAGNIFICATION Russian patent published in 2001 - IPC

FIELD: optics. SUBSTANCE: proposed high-speed planochromatic microlens include five components arranged in series along optical axis. First component is single positive meniscus facing object space with concavity. Second component includes negative and positive lenses bonded together. Third component is made of two positive lenses and one negative lens stuck together. Fourth component includes two meniscuses facing object space with concavity. Fifth component is fabricated in the form of meniscus composed of positive and negative lenses facing image space with concavity. Positive lens of fifth component is biconvex lens or meniscus facing image space with concavity. EFFECT: enlarged aperture with preservation of high-quality images by comparatively simple and adaptable to manufacture design. 1 dwg, 3 tbl