Title:
FIXED FOCUS LENS
Document Type and Number:
Japanese Patent JP2001281540
Kind Code:
A
Abstract:
To miniaturize a fixed focus lens equipped with a lens group consisting of at least three lenses and to reduce production cost by constituting at least three adjacent lenses on an object side constituting the lens group to come into contact with each other in a plane state and fixing the lenses at specified positions without using an interval ring.
In this fixed focus lens equipped with the lens group I consisting of at least three lenses, at least three adjacent lenses L1, L2 and L3 on the object side constituting the lens group I are constituted to come in contact with each other in the plane state at the peripheral part.
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Inventors:
SHINOHARA YOSHIKAZU
Application Number:
JP2000093101A
Publication Date:
October 10, 2001
Filing Date:
March 30, 2000
Export Citation:
Assignee:
FUJI PHOTO OPTICAL CO LTD
International Classes:
G02B13/04; (IPC1-7): G02B13/04
Attorney, Agent or Firm:
Hiroshi Kawano