Geometrical instruments – Gauge – Collocating
Reexamination Certificate
2000-03-24
2002-05-21
Gutierrez, Diego (Department: 2859)
Geometrical instruments
Gauge
Collocating
C033S645000, C033S655000, C358S406000
Reexamination Certificate
active
06389705
ABSTRACT:
FIELD OF THE PRESENT INVENTION
The present invention relates to an optical calibration plate and the assembling method for the same, especially to an optical calibration plate which will not be stained by a hand during assembling. Background of the present invention
A scanner generally has an optical calibration plate attached on the cover thereof, providing a basis for calibration. However, the conventional optical calibration plate is attached on the cover manually. The surface of the optical calibration plate may be stained by an operator's hand and the calibration is degraded. The staining problem can be overcome by attaching a protective film over the optical calibration plate. Nevertheless, the assembling time and cost are increased.
As shown in
FIG. 1
, a conventional optical calibration plate assembly comprises a protective film
60
, an optical calibration plate
70
and a binder lid
80
. The operator performs the following steps to assembled the optical calibration plate
70
on the cover of the scanner.
(1) Removing the binder lid
80
.
(2) Registering the optical calibration plate
70
to a clamping member on the cover of the scanner.
(3) Attaching one side of the optical calibration plate
70
to a corresponding portion on the cover and then attaching whole optical calibration plate
70
on the cover.
(4) Removing the protective film
60
.
The above mentioned processes have following drawbacks.
(1) The operators should pay much attention on registering the optical calibration plate.
(2) The operators spend considerable time in pasting the optical calibration plate to the cover and the optical calibration plate may be stained by the binder.
(3) The operators spend considerable time in removing the binder lid and the protective film.
(4) The conventional optical calibration plate assembly comprises a protective film and a binder lid, the cost thereof is high.
BRIEF SUMMARY OF THE INVENTION
It is an object of the invention to provide an assembling method for an optical calibration plate, comprising the following steps: clamping one side of the optical calibration plate on a clamping means of a cover of an optical apparatus: and clamping another side of the optical calibration plate on another clamping means of the cover.
It is another object of the invention to provide an optical calibration plate having low cost due to elimination of the protective film and the binder lid.
It is still another object of the invention to provide an optical calibration plate having less contamination because the operator will not touch the optical calibration region.
It is still another object of the invention to provide an optical calibration plate having reduced processing time and cost because the task of registering and removing the protective film and the binder lid are saved.
The various objects and advantages of the present invention will be more readily understood from the following detailed description when read in conjunction with the appended drawings, in which:
REFERENCES:
patent: 3487552 (1970-01-01), Hoffer
patent: 4604811 (1986-08-01), Roosen
patent: 5801962 (1998-09-01), Sheu et al.
patent: 5933975 (1999-08-01), Pate
patent: 6011632 (2000-01-01), Chiang
Gonzalez Madeline
Gutierrez Diego
Silitek Corporation
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