Title:
Optical pointer
Document Type and Number:
Japanese Patent JP6363396
Kind Code:
B2
Abstract:
A device that can perform the function of a laser pointer but is safer than a laser pointer is provided. This light pointer has a first lens (150), a second lens (160), and a light-source system (140) that, in effect, functions as a point light source. The light-source system (140) is either an LED or an EL element and does not use a laser. Light leaving the light-source system (140) passes through the second lens (160), which has a negative power, increasing the beam angle of said light. Said light then heads towards and passes through the first lens (150), which has a positive power, and becomes, in effect, collimated light, which hits a prescribed target object and forms a light spot similar to the light spot formed by a laser pointer.
Inventors:
Masao Yamamoto
Application Number:
JP2014106772A
Publication Date:
July 25, 2018
Filing Date:
May 23, 2014
Export Citation:
Assignee:
Scala Co., Ltd.
International Classes:
G02B27/20; G02B5/00; G02B13/00
Domestic Patent References:
| JP2003035883A | ||||
| JP2001183969A | ||||
| JP10020765A | ||||
| JP5029066U | ||||
| JP9281437A | ||||
| JP59228621A |
Attorney, Agent or Firm:
Yoshito Muramatsu
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