RU96114682A - LIGHT LIGHT FOR THE NEAR IR SPECTRUM AREA - Google Patents
LIGHT LIGHT FOR THE NEAR IR SPECTRUM AREAInfo
- Publication number
- RU96114682A RU96114682A RU96114682/28A RU96114682A RU96114682A RU 96114682 A RU96114682 A RU 96114682A RU 96114682/28 A RU96114682/28 A RU 96114682/28A RU 96114682 A RU96114682 A RU 96114682A RU 96114682 A RU96114682 A RU 96114682A
- Authority
- RU
- Russia
- Prior art keywords
- light
- components
- lens
- component
- spectrum area
- Prior art date
Links
- 238000001228 spectrum Methods 0.000 title claims 2
Claims (1)
-0,085 < r1/r2 < -0,06 (4),
-0,9 < r3/f'< - 0,7 (5),
0,6 < r4/f'< 0,8 (6),
-3,4 < r5/r6 < -3 (7),
0,65 < rr/f' < 0,8 (8),
где n1, n3 - показатели преломления I и III компонентов;
f' - фокусное расстояние объектива;
f1, f2 - фокусные расстояния I и II компонентов;
r1, r2, r3, r4, r5, r6, r7 - радиусы кривизны I, II, III и IV компонентов.A fast aperture lens for the near infrared region of the spectrum containing four components, the first component being positive, the second component a biconcave lens, the third and fourth components a biconvex lens, characterized in that the first component is a biconvex lens, the following ratios:
-0.085 <r 1 / r 2 <-0.06 (4),
-0.9 <r 3 / f '<- 0.7 (5),
0.6 <r 4 / f '<0.8 (6),
-3.4 <r 5 / r 6 <-3 (7),
0.65 <r r / f '<0.8 (8),
where n 1 , n 3 are the refractive indices of the I and III components;
f 'is the focal length of the lens;
f 1 , f 2 - focal lengths of I and II components;
r 1 , r 2 , r 3 , r 4 , r 5 , r 6 , r 7 are the radii of curvature of the I, II, III, and IV components.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU96114682A RU2094834C1 (en) | 1996-07-22 | 1996-07-22 | Wide aperture lens for near infrared light |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU96114682A RU2094834C1 (en) | 1996-07-22 | 1996-07-22 | Wide aperture lens for near infrared light |
Publications (2)
Publication Number | Publication Date |
---|---|
RU2094834C1 RU2094834C1 (en) | 1997-10-27 |
RU96114682A true RU96114682A (en) | 1997-12-10 |
Family
ID=20183572
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
RU96114682A RU2094834C1 (en) | 1996-07-22 | 1996-07-22 | Wide aperture lens for near infrared light |
Country Status (1)
Country | Link |
---|---|
RU (1) | RU2094834C1 (en) |
-
1996
- 1996-07-22 RU RU96114682A patent/RU2094834C1/en active
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