Title:
双眼ルーペの製作方法
Document Type and Number:
Japanese Patent JP6433258
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a manufacturing method of a binocular loupe in which a loupe can be attached to a carrier lens at an accurate downward mounting angle, by accurately measuring the forward inclination angle at which a wearer works in a downward state.SOLUTION: A square marker 8 is attached to a frame incorporated with a carrier lens, and the face of a wearer of the frame is imaged from a work operation place P when the wearer gazes the downward work operation place P in a work attitude of using a binocular loupe. A forward inclination angle α of the carrier lens is calculated on the basis of the degree of shape change from the square to a trapezoid of the marker 8 in an oblique image of the imaged face from the downside, and a downward mounting angle r when the loupe is mounted to the carrier lens on the basis of the forward inclination angle α is determined.SELECTED DRAWING: Figure 12
Inventors:
Shoichi Nakamura
Application Number:
JP2014233670A
Publication Date:
December 05, 2018
Filing Date:
November 18, 2014
Export Citation:
Assignee:
Shoichi Nakamura
ACP Japan Co., Ltd.
ACP Japan Co., Ltd.
International Classes:
G02C9/00; G02B23/18; G02B25/00
Domestic Patent References:
| JP2014044391A | ||||
| JP2014530383A | ||||
| JP11073514A |
Foreign References:
| WO2012124140A1 | ||||
| US20130314668 |
Attorney, Agent or Firm:
Yoshiaki Nishiyama
Akihiko Umeda
Akihiko Umeda
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