Title:
コリメータ及び小型レンズアレイを有する光学デバイス
Document Type and Number:
Japanese Patent JP6671377
Kind Code:
B2
Abstract:
An optical device (100) is disclosed, comprising a collimator (110) and a first lenslet array (130, 430) and a second lenslet array (140, 440). The first lenslet array and the second lenslet array are provided with the same tessellation pattern, aligned with each other and arranged such that a projection (150) of a light source (122) is focused on the second lenslet array, which is configured to emit non-focused light. At least some of the lenslets of the second array are formed such that a ratio of their sagittal and meridional dimensions varies at least along the meridional direction (M) of the second lenslet array, based on the varying shape of the projection of the light source as seen by said lenslets, so as to achieve an improved mixing, intensity and uniformity of light emitted from the optical device.
Inventors:
Dross Olivier
Application Number:
JP2017536021A
Publication Date:
March 25, 2020
Filing Date:
January 06, 2016
Export Citation:
Assignee:
SIGNIFY HOLDING B.V.
International Classes:
G02B19/00; F21S2/00; F21V5/04; G02B3/00
Domestic Patent References:
| JP2011504610A | ||||
| JP2000258610A | ||||
| JP63150803A | ||||
| JP2001125193A | ||||
| JP2002090884A |
Foreign References:
| CN203549679U |
Attorney, Agent or Firm:
Sakiko Shibata