Precision Positioning for Optical Lenses in the Optical Axis by a Plastic Ring
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- KANNO Akihiro
- 新潟大学大学院自然科学研究科
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- NITTA Isami
- 新潟大学大学院自然科学研究科
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- IGARASHI Wataru
- 新潟大学大学院自然科学研究科
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- KOMATA Kimio
- (株)オプセル
Bibliographic Information
- Other Title
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- 樹脂リングによる光学レンズの光軸方向の高精度な位置決め
- ジュシ リング ニ ヨル コウガク レンズ ノ コウジク ホウコウ ノ コウセイド ナ イチギメ
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Abstract
Collimator lens makes rays of semiconductor laser accurately parallel in the laser scanner. The most frequently used method of joining lenses is to clamp the lens near its edge by a shoulder of the housing and spacer. In the conventional method, the temperature change cause the lenses to move from the appropriate position because the coefficients of thermal expansion of the lenses are greatly different from those of the metallic housing and spacers. Therefore, the beam spots on an image plane are deteriorated. So we have developed the new method of joining collimator lenses with the shrink fitter and the plastic ring. In this method, the optical axes of the lenses in the housing coincide with each other by the shrink fitter. In addition, the plastic ring keep the spacing of the lenses constant in the optical axis when the environmental temperature changes. Therefore, the new method realized the high performance laser scanner at any temperature change. In this paper, we examined the validity of the new method theoretically and experimentally
Journal
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- Journal of the Japan Society for Precision Engineering, Contributed Papers
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Journal of the Japan Society for Precision Engineering, Contributed Papers 71 (12), 1583-1589, 2005
The Japan Society for Precision Engineering
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Details 詳細情報について
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- CRID
- 1390001205280039680
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- NII Article ID
- 110002545870
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- NII Book ID
- AA11966630
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- ISSN
- 18818722
- 13488716
- 13488724
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- HANDLE
- 10191/24306
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- NDL BIB ID
- 7760748
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- Text Lang
- ja
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- Data Source
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- JaLC
- IRDB
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed