Fujifilm Corporation

Hidekane Ito

Atsushi Misawa

Seiichi Watanabe

Kazumi Koike

Noriko Eiha

Nariya Matsumoto

Projector lens for a projector

Projector lens unit for a projector

An optical lens has an optical function portion having an optical function, and a flange portion formed around the optical function portion. The flange portion has a cut section, which is formed by cutting a gate portion, on a side surface thereof. In a case where the following are viewed from a direction of the optical axis of the optical lens, a concave portion is provided in at least a portion of a region in which the flange portion overlaps with a region obtained by straight lines connecting together an optical axis center of the optical lens and both ends of the cut section, and the concave portion is provided on both surfaces of the flange portion.

Optical lens, lens unit, imaging module, electronic apparatus, injection molding mold, and injection molding method

The optical lenshaving an optical function portionhaving optical functions; and a flange portionformed around the optical function portion. The flange portionhas, on a side surface thereof, a cut sectionwhich is formed by cutting a gate portion. In a case where the following are viewed from the optical axis direction of the optical lens, a thinnest portionin a regionsurrounded by lines Land L, which respectively connect both endsandof the cut sectionto the optical axis center O of the optical lens, and a line L, which connects both endsand, is present in the optical function portion. The flange portionhas a concave portionoutside the region

Optical lens, lens unit, imaging module, electronic apparatus, injection molding mold and injection molding method

An optical lens, which has a lens section with a refractive power, has concave marks, andwhich are formed to be recessed on a surface of the lens section, in an effective optical lens surface which contributes to image forming of the lens section. A width of each of these concave marks, andis equal to or greater than 0.05 &#x3bc;m and equal to or less than 14 &#x3bc;m, and a depth of recession of each concave mark is equal to or greater than 0.05 &#x3bc;m and equal to or less than 5 &#x3bc;m.

Optical lens, lens unit, imaging module, electronic device, optical lens production method, lens mold, and shape correction method for lens mold

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Saitama, Japan

Hidekane Ito