Ostrolenk, Faber, Gerb & Soffen, LLP
Ratcheting diopter adjustment device
In a finder apparatus, a diopter adjusting knob for driving an eyepiece back and forth is supported by a shaft portion of a main body. A plurality of V-shaped ratcheting grooves are disposed in a direction orthogonal to a parting line caused by molding under the shaft portion of the main body. The diopter adjusting knob is ratchetingly adjusted when a ball supported on a diopter adjusting knob slides in contact with the V-shaped grooves. The main body can be molded using simple dies without slides because the V-shaped grooves are orthogonal to the parting line.
Olympus Optical Co., Ltd.
G
G03B
inventional
Hiroyuki
Satake