Title:
SINGLE COLLIMATOR LENS
Document Type and Number:
Japanese Patent JPS60126617
Kind Code:
A
Abstract:
A collimator lens is described having a small numerical aperture and specific focal lengths. One of the surfaces of the lens is plane and the other surface has an aspherical profile defined by a series expansion comprising only a few even terms.
Inventors:
ARUBERUTO SUMITSUDO
Application Number:
JP20958784A
Publication Date:
July 06, 1985
Filing Date:
October 05, 1984
Export Citation:
Assignee:
PHILIPS NV
International Classes:
G02B3/04; G02B13/18; G02B13/00; (IPC1-7): G02B13/00; G02B13/18
Domestic Patent References:
| JPS5817409A | 1983-02-01 | |||
| JPS5764714A | 1982-04-20 | |||
| JPS50156945A | 1975-12-18 | |||
| JPS5868711A | 1983-04-23 | |||
| JPS5296555A | 1977-08-13 | |||
| JPS5047488A | 1975-04-26 | |||
| JP58065009B |
Attorney, Agent or Firm:
Akihide Sugimura