FIELD: optics.
SUBSTANCE: system has television tube, protective glass, meniscus, three correction-force components with aspheric surfaces, and home video system screen. Meniscus together with protective glass forms a hollow for cooling liquid. Correction-force component is made in form of glass lens. onto at least one surface of lens plastic layer is applied with a spherical contact surface and outer aspheric surface. Plastic layer has optical force. Refraction coefficient of plastic layer is not equal to refraction coefficient of lens glass.
EFFECT: higher quality, lower costs.
1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| OPTICAL SYSTEM OF PROJECTION TV RECEIVER | 2002 |
|
RU2227314C1 |
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|
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RU2302650C1 |
