Collimating lens unit

Details Collimating lens unit Collimating lens unit

1997-07-17

1998-09-08

Ben, Loha

Optical: systems and elements

Lens

With support

359800, 369100, G02B 702

Patent

active

058053638

ABSTRACT:
A collimating lens unit is provided that includes a collimating lens, a lens holder which holds the collimating lens, and an adhesive which secures the collimating lens to the lens holder. The adhesive is applied to remain outside of an effective area of the collimating lens, so that an output beam emitted from the collimating lens unit is not shaded by the adhesive. In particular, the effective area is determined based on the characteristics of an optical system which includes the collimating lens.

REFERENCES:
patent: 4886342 (1989-12-01), Kuda et al.
patent: 5161061 (1992-11-01), Ihara et al.
patent: 5381190 (1995-01-01), Rehse et al.
patent: 5612826 (1997-03-01), Ohshita

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