To ensure a transfer path of a conventional shutter blade while using a photographic lens of lens constitution consisting of three or more lenses.
A photographic lens 13 consists of three lenses and satisfies the expressions: L≥(2+√2)/4×D (mm) and C≥3 (mm), wherein C (mm) is the lens distance between the anterior end face of the first lens 35 from the subject side and the posterior end face of the second lens 36; D (mm) is the outside diameter of a cartridge 26; and L (mm) is the distance between an imaging position P and the principal point of the second lens 36. As a result, even when a shutter blade 44 is located between the first and second lenses 35, 36, a space 65 produced by curving a subject side outer surface 62 of a cartridge chamber 28 is utilized as a transfer path 60 of the shutter blade 44.
| JPS6035065 | [Title of the device] Photograph film |
| JP2003292058 | LIGHTPROOF BOX FOR PHOTOSENSITIVE MATERIAL |
CHUMA HIROKATSU
KOIKE KAZUMI
