Miniature telephoto lens module and a camera utilizing such a lens module
AssigneeCorephotonics Ltd.
InventorsGal Shabtay, Ephraim Goldenberg
Life of this patent
Estimating the term…
Abstract
The presently disclosed subject matter includes a mobile electronic comprising an integrated camera, comprising a Wide camera unit comprising a Wide lens unit, and a Telephoto camera unit comprising a telephoto lens unit, the telephoto lens unit and the wide lens unit having respectively TTL/EFL ratios smaller and larger than 1 and defining separate telephoto and wide optical paths.
Claims20
A mobile electronic device comprising an integrated camera, wherein the camera comprises a Wide camera unit comprising a Wide lens unit with a field of view FOVW and having a total track length TTLW and an effective focal length EFLW in the range EFLW=2.5-6 mm, and a Telephoto camera unit comprising a Telephoto lens unit with a Telephoto field of view FOVT, a total track length TTLT and an effective focal length EFLT in the range EFLT=5-12 mm, wherein the TTLT includes a glass window, wherein a ratio TTLW/EFLW is greater than 1, and wherein a ratio TTLT/EFLT is smaller than 1, and wherein the Telephoto lens unit has an optical axis and an optical diameter smaller than 5 mm and a F #smaller than 3.2 and includes a first group of at least three lens elements having, in order from an object plane to an image plane along the optical axis, a first lens element having positive optical power and a pair of second and third lens elements having together negative optical power, and a second group of at least two lens elements, wherein each of the at least two lens elements in the second group is made of different polymer materials having different Abbe numbers.
A camera, comprising:
- a Wide camera unit comprising a Wide lens unit with a field of view FOVW and having a total track length TTLW and an effective focal length EFLW in the range 2.5-6 mm, and a Telephoto camera unit comprising a Telephoto lens unit with a Telephoto field of view FOVT, a total track length TTLT and an effective focal length EFLT in the range 5-12 mm, wherein the TTLT includes a glass window, wherein a ratio TTLW/EFLW is greater than 1, and wherein a ratio TTLT/EFLT is smaller than 1, and wherein the Telephoto lens unit has an optical axis and an optical diameter smaller than 5 mm and a F #smaller than 3.2 and includes a first group of at least three lens elements having, in order from an object plane to an image plane along the optical axis, a first lens element having positive optical power and a pair of second and third lens elements having together negative optical power, and a second group of at least two lens elements, wherein each of the at least two lens elements in the second group is made of the different polymer materials.
Dependencies are inferred from the claim text.