| 摘要 |
The invention relates to a collimator optical device (11) for a luminaire; the collimator lens has an length extension (L) in an axial direction (A) and a width extension (B) transverse to the axial extension in a transverse direction (Q); the length extension is bigger than the width extension; a cylinder or a basically cylinder cavity (22) used for containing at least one LED (12) and extends in the axial direction; the cavity has an inner size (38) only being a part of the width extension of the collimator lens in the transverse direction (Q), and has an inner size (39) being a whole length extension or basically the whole length extension (L) in the axial direction. |
