Title:
LIGHT POINTER
Document Type and Number:
WIPO Patent Application WO/2015/178473
Kind Code:
A1
Abstract:
This invention provides a device that can perform the function of a laser pointer, is safer than a laser pointer, and produces a light spot with a clear outline when shined on a target object. 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. A screw thread is formed on the inside surface of a case (110). Consequently, unexpected stray light is diffusely reflected, making it impossible for stray light to exist in a concentrated manner and thus making the outline of the light spot clear.
Inventors:
YAMAMOTO MASAO (JP)
Application Number:
PCT/JP2015/064707
Publication Date:
November 26, 2015
Filing Date:
May 22, 2015
Export Citation:
Assignee:
SCALAR CORP (JP)
International Classes:
G02B27/20; G02B5/00; G02B13/00
Foreign References:
| JP2003035883A | 2003-02-07 | |||
| JP2006047567A | 2006-02-16 | |||
| JP2004334129A | 2004-11-25 | |||
| JPH09281437A | 1997-10-31 |
Attorney, Agent or Firm:
MURAMATSU, YOSHIHITO (JP)
Yoshito Muramatsu (JP)
Yoshito Muramatsu (JP)
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