Optical: systems and elements – Lens – With support
Patent
1996-07-30
1998-06-30
Ben, Loha
Optical: systems and elements
Lens
With support
359820, 359822, 359695, 396 83, G02B 702
Patent
active
057742820
ABSTRACT:
A lens position adjusting apparatus for adjusting an axial position of a rearmost lens group of a plurality of lens groups provided in a focal length variable lens upon assembly of the focal length variable lens is provided. The lens position adjusting apparatus includes a lens frame, a lens frame holder and an engagement tooth array portion. The lens frame holds the rearmost lens group. The lens frame holder engages with the lens frame through a threaded engagement. The engagement tooth array portion is formed along a rear end of the lens frame. The engagement tooth array portion consists of a plurality of engaging teeth. Each of the engaging teeth extends in a direction substantially parallel to an optical axis facing towards a rear of the focal length variable lens.
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Kohmoto Shinsuke
Sato Norio
Asahi Kogaku Kogyo Kabushiki Kaisha
Ben Loha
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