US3616043A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of bonding a glass prism to a metal
Assignee: Raytheon Co
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Filing: 1969-05-19
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Granted: 1971-10-26
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Expires: 1989-05-19
Abstract
Abstract The method of bonding an optical element to a base includes as a first step the bonding of the optical element to a metal support having substantially the same coefficient of expansion as the optical element. The metal support is then bonded to the metal base with an adhesive which cures at low ambient temperatures for allowing alignment of the optical element with respect to the metal base during the curing time of the adhesive between the metal support and the metal base.
Inventors
- 👤 Ronald C Anderson
- 👤 Donald J Strittmatter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 03:59
CPC Classifications
G; G02; G02B; G02B1/00
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
39 words
The method of claim 1 further including an intermediate adjustment step by which the optical element is adjusted with respect to the metal base prior to the setting of the adhesive between the metal support and the metal base.
Claim 2
Dependent Claim
63 words
The method of claim 2 wherein the adjustment step comprises adjusting the optical element with respect to the metal base prior to the application of the adhesive between the metal support and the metal base and maintaining the adjustment by mechaNical contact between the optical element and the metal base during setting of the adhesive between the metal support and the metal base.
Claim 3
Independent Claim
146 words
The method of bonding an optical element to a metal base comprising the steps of: positioning a first adhesive which is thermosetting at an elevated temperature in adhesive contact to the optical element and a metal support having a thermal coefficient of expansion substantially the same as the thermal coefficient of expansion of the optical element; applying heat and pressure onto the first adhesive at a sufficient temperature for a sufficient length of time and a sufficient pressure to cause curing of the first adhesive and adhesive bonding of the optical element to the metal support; positioning a second adhesive which cures at a nonelevated temperature in adhesive contact with the metal support and the metal base, and causing bonding between the metal support and the metal base by setting of the second adhesive whereby bonding of the optical element to the metal base is accomplished.
Claim 4
Dependent Claim
40 words
The method of claim 4 further including an intermediate adjustment step by which the optical element is adjusted with respect to the metal base after the curing of the first adhesive and prior to the setting of the second adhesive.
Claim 5
Dependent Claim
49 words
The method of claim 5 wherein the adjustment step comprises adjusting the optical element with respect to the metal base prior to the application of the second adhesive and maintaining the adjustment by mechanical contact between the optical element and the metal base during setting of the second adhesive.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-10-25 | 1975-04-26 | 1975-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-25 | 1979-04-26 | 1979-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-25 | 1983-04-26 | 1983-10-26 | $7700.00 | Window Closed / Lapsed |