Variable focal position optical system and light beam scanning a

Details Variable focal position optical system and light beam scanning a Variable focal position optical system and light beam scanning a

1996-12-04

1998-05-26

Epps, Georgia Y.

Optical: systems and elements

Single channel simultaneously to or from plural channels

359205, G02B 2710, G02B 2608

Patent

active

057575495

ABSTRACT:
A variable focal position optical system which includes a variable focal length lens subsystem whose focal length is variable and a fixed focal length lens subsystem whose focal length is fixed. The variable focal length lens subsystem and the fixed focal length lens subsystem are arranged such that a distance between a principal point of the variable focal length lens subsystem and a principal point of the fixed focal length lens subsystem at a variable focal length lens subsystem side is substantially equal to the focal length of the fixed focal length lens subsystem. As a result, it is possible to change only a focal position with substantially no change to a beam diameter at the focal position.

REFERENCES:
patent: 4733064 (1988-03-01), Ishikawa
patent: 5276544 (1994-01-01), Maeda
patent: 5355181 (1994-10-01), Ashizaki et al.
patent: 5386107 (1995-01-01), Dvorkis et al.

Affiliated with

Also associated with

Rating

Variable focal position optical system and light beam scanning a does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Variable focal position optical system and light beam scanning a, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Variable focal position optical system and light beam scanning a will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1969234