Coupled lens assembly

Details Coupled lens assembly Coupled lens assembly

1992-07-09

1994-09-20

Sugarman, Scott J.

Optical: systems and elements

Lens

With field curvature shaping

359793, 359796, G02B 300, G02B 900

Patent

active

053494725

ABSTRACT:
A coupled lens assembly comprises a plurality of lens units coupled by an intermediate layer disposed between the adjoining lens units, the intermediate layers being formed of an additional type silicone filler. A coupled lens assembly comprises a plurality of lens units coupled by an intermediate layer disposed between the adjoining lens units and formed of a bonding agent. Each of the lens units has a central lens portion and a peripheral portion surrounding the central lens portion and wherein one of the adjoining lens units has a flanged portion formed to a peripheral portion and the other one of the adjoining lens units has an engaging portion formed to the peripheral portion to be engaged with the flanged portion when both the lens units are coupled with optical axes of both the lens units being aligned. A groove is formed to at least one of the peripheral portions of the adjoining lens units for receiving an excessive fillet such as bonding agent when the filler is excessively applied and/or a discharge passage is formed to at least one of the peripheral portions of the adjoining lens units for discharging the excessive filler outward the coupled lens assembly. The groove may be formed so as to communicate with the discharge passage.

REFERENCES:
patent: 4015897 (1977-04-01), Konoma et al.
patent: 4679918 (1987-07-01), Ace

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